./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--net--wireless--mwl8k.ko-ldv_main0.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-consumption/linux-3.8-rc1-32_7a-drivers--net--wireless--mwl8k.ko-ldv_main0.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 0b76be36f18ad21ad9f8bdc1086d9a5532c87a2c14457e790c7f2f104cdb0ee5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 13:56:59,547 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 13:56:59,548 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 13:56:59,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 13:56:59,590 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 13:56:59,590 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 13:56:59,591 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 13:56:59,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 13:56:59,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 13:56:59,594 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 13:56:59,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 13:56:59,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 13:56:59,595 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 13:56:59,596 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 13:56:59,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 13:56:59,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 13:56:59,598 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 13:56:59,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 13:56:59,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 13:56:59,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 13:56:59,602 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 13:56:59,603 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 13:56:59,604 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 13:56:59,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 13:56:59,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 13:56:59,606 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 13:56:59,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 13:56:59,607 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 13:56:59,607 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 13:56:59,608 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 13:56:59,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 13:56:59,608 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 13:56:59,609 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 13:56:59,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 13:56:59,610 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 13:56:59,610 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 13:56:59,610 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 13:56:59,610 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 13:56:59,611 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 13:56:59,611 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 13:56:59,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 13:56:59,612 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 13:56:59,625 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 13:56:59,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 13:56:59,625 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 13:56:59,626 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 13:56:59,626 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 13:56:59,626 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 13:56:59,627 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 13:56:59,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 13:56:59,627 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 13:56:59,627 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 13:56:59,627 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 13:56:59,627 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 13:56:59,627 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 13:56:59,628 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 13:56:59,628 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 13:56:59,628 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 13:56:59,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 13:56:59,628 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 13:56:59,628 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 13:56:59,628 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 13:56:59,629 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 13:56:59,629 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 13:56:59,629 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 13:56:59,629 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 13:56:59,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 13:56:59,629 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 13:56:59,629 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 13:56:59,630 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 13:56:59,630 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 13:56:59,630 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b76be36f18ad21ad9f8bdc1086d9a5532c87a2c14457e790c7f2f104cdb0ee5 [2021-11-06 13:56:59,783 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 13:56:59,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 13:56:59,813 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 13:56:59,814 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 13:56:59,816 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 13:56:59,816 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--net--wireless--mwl8k.ko-ldv_main0.cil.out.i [2021-11-06 13:56:59,875 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a7c181ab/9de4eceaecb34fdc848118d1cb95c21e/FLAG70a4da0ee [2021-11-06 13:57:00,475 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 13:57:00,476 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--net--wireless--mwl8k.ko-ldv_main0.cil.out.i [2021-11-06 13:57:00,524 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a7c181ab/9de4eceaecb34fdc848118d1cb95c21e/FLAG70a4da0ee [2021-11-06 13:57:00,631 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a7c181ab/9de4eceaecb34fdc848118d1cb95c21e [2021-11-06 13:57:00,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 13:57:00,637 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 13:57:00,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 13:57:00,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 13:57:00,642 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 13:57:00,643 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 01:57:00" (1/1) ... [2021-11-06 13:57:00,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61c23b3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:57:00, skipping insertion in model container [2021-11-06 13:57:00,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 01:57:00" (1/1) ... [2021-11-06 13:57:00,648 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 13:57:00,733 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 13:57:02,669 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-consumption/linux-3.8-rc1-32_7a-drivers--net--wireless--mwl8k.ko-ldv_main0.cil.out.i[385601,385614] [2021-11-06 13:57:02,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 13:57:02,799 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 13:57:03,129 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-consumption/linux-3.8-rc1-32_7a-drivers--net--wireless--mwl8k.ko-ldv_main0.cil.out.i[385601,385614] [2021-11-06 13:57:03,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 13:57:03,216 INFO L208 MainTranslator]: Completed translation [2021-11-06 13:57:03,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:57:03 WrapperNode [2021-11-06 13:57:03,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 13:57:03,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 13:57:03,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 13:57:03,219 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 13:57:03,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:57:03" (1/1) ... [2021-11-06 13:57:03,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:57:03" (1/1) ... [2021-11-06 13:57:04,486 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 13:57:04,486 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 13:57:04,487 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 13:57:04,487 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 13:57:04,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:57:03" (1/1) ... [2021-11-06 13:57:04,493 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:57:03" (1/1) ... [2021-11-06 13:57:04,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:57:03" (1/1) ... [2021-11-06 13:57:04,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:57:03" (1/1) ... [2021-11-06 13:57:05,438 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:57:03" (1/1) ... [2021-11-06 13:57:05,577 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:57:03" (1/1) ... [2021-11-06 13:57:05,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:57:03" (1/1) ... [2021-11-06 13:57:05,810 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 13:57:05,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 13:57:05,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 13:57:05,812 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 13:57:05,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:57:03" (1/1) ... [2021-11-06 13:57:05,818 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 13:57:05,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 13:57:05,836 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 13:57:05,842 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 13:57:05,862 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-06 13:57:05,863 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 13:57:05,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 13:57:05,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 13:57:05,863 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 13:57:05,864 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 13:57:05,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 13:57:05,864 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 13:57:05,864 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_post_pervif_cmd [2021-11-06 13:57:05,864 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_post_pervif_cmd [2021-11-06 13:57:05,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 13:57:05,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 13:57:05,864 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_bss_start [2021-11-06 13:57:05,865 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_bss_start [2021-11-06 13:57:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 13:57:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 13:57:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_enable_bsses [2021-11-06 13:57:05,865 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_enable_bsses [2021-11-06 13:57:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 13:57:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 13:57:05,865 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 13:57:05,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 13:57:05,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 13:57:05,866 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_post_cmd [2021-11-06 13:57:05,866 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_post_cmd [2021-11-06 13:58:15,482 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 13:58:15,482 INFO L299 CfgBuilder]: Removed 7922 assume(true) statements. [2021-11-06 13:58:15,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 01:58:15 BoogieIcfgContainer [2021-11-06 13:58:15,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 13:58:15,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 13:58:15,490 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 13:58:15,492 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 13:58:15,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 01:57:00" (1/3) ... [2021-11-06 13:58:15,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c0ca034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 01:58:15, skipping insertion in model container [2021-11-06 13:58:15,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:57:03" (2/3) ... [2021-11-06 13:58:15,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c0ca034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 01:58:15, skipping insertion in model container [2021-11-06 13:58:15,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 01:58:15" (3/3) ... [2021-11-06 13:58:15,494 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--net--wireless--mwl8k.ko-ldv_main0.cil.out.i [2021-11-06 13:58:15,498 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 13:58:15,498 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2021-11-06 13:58:15,559 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 13:58:15,564 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 13:58:15,565 INFO L340 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2021-11-06 13:58:15,659 INFO L276 IsEmpty]: Start isEmpty. Operand has 8322 states, 8174 states have (on average 1.4219476388549057) internal successors, (11623), 8218 states have internal predecessors, (11623), 101 states have call successors, (101), 4 states have call predecessors, (101), 4 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2021-11-06 13:58:15,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-06 13:58:15,662 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:58:15,663 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-06 13:58:15,664 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [mwl8k_post_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr1ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-06 13:58:15,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:58:15,667 INFO L85 PathProgramCache]: Analyzing trace with hash 2017409674, now seen corresponding path program 1 times [2021-11-06 13:58:15,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:58:15,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209221195] [2021-11-06 13:58:15,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:58:15,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:58:15,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:58:16,130 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 13:58:16,131 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:58:16,131 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209221195] [2021-11-06 13:58:16,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209221195] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:58:16,132 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:58:16,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:58:16,133 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061495761] [2021-11-06 13:58:16,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:58:16,136 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:58:16,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:58:16,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:58:16,159 INFO L87 Difference]: Start difference. First operand has 8322 states, 8174 states have (on average 1.4219476388549057) internal successors, (11623), 8218 states have internal predecessors, (11623), 101 states have call successors, (101), 4 states have call predecessors, (101), 4 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 13:58:19,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:58:19,043 INFO L93 Difference]: Finished difference Result 24013 states and 34573 transitions. [2021-11-06 13:58:19,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:58:19,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2021-11-06 13:58:19,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:58:19,115 INFO L225 Difference]: With dead ends: 24013 [2021-11-06 13:58:19,115 INFO L226 Difference]: Without dead ends: 15471 [2021-11-06 13:58:19,188 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 13:58:19,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15471 states. [2021-11-06 13:58:19,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15471 to 15445. [2021-11-06 13:58:19,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15445 states, 15193 states have (on average 1.3897189495162245) internal successors, (21114), 15238 states have internal predecessors, (21114), 202 states have call successors, (202), 8 states have call predecessors, (202), 8 states have return successors, (404), 202 states have call predecessors, (404), 202 states have call successors, (404) [2021-11-06 13:58:19,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15445 states to 15445 states and 21720 transitions. [2021-11-06 13:58:19,632 INFO L78 Accepts]: Start accepts. Automaton has 15445 states and 21720 transitions. Word has length 6 [2021-11-06 13:58:19,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:58:19,633 INFO L470 AbstractCegarLoop]: Abstraction has 15445 states and 21720 transitions. [2021-11-06 13:58:19,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 13:58:19,633 INFO L276 IsEmpty]: Start isEmpty. Operand 15445 states and 21720 transitions. [2021-11-06 13:58:19,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-06 13:58:19,634 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:58:19,634 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:58:19,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 13:58:19,634 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [mwl8k_post_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr1ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-06 13:58:19,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:58:19,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1884783199, now seen corresponding path program 1 times [2021-11-06 13:58:19,635 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:58:19,635 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979095538] [2021-11-06 13:58:19,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:58:19,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:58:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:58:19,784 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 13:58:19,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:58:19,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979095538] [2021-11-06 13:58:19,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979095538] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:58:19,785 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:58:19,785 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:58:19,785 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486796383] [2021-11-06 13:58:19,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:58:19,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:58:19,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:58:19,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:58:19,787 INFO L87 Difference]: Start difference. First operand 15445 states and 21720 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 13:58:22,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:58:22,212 INFO L93 Difference]: Finished difference Result 15445 states and 21720 transitions. [2021-11-06 13:58:22,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:58:22,213 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2021-11-06 13:58:22,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:58:22,264 INFO L225 Difference]: With dead ends: 15445 [2021-11-06 13:58:22,264 INFO L226 Difference]: Without dead ends: 15443 [2021-11-06 13:58:22,272 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 13:58:22,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15443 states. [2021-11-06 13:58:22,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15443 to 15443. [2021-11-06 13:58:22,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15443 states, 15192 states have (on average 1.3896787783043707) internal successors, (21112), 15236 states have internal predecessors, (21112), 202 states have call successors, (202), 8 states have call predecessors, (202), 8 states have return successors, (404), 202 states have call predecessors, (404), 202 states have call successors, (404) [2021-11-06 13:58:22,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15443 states to 15443 states and 21718 transitions. [2021-11-06 13:58:22,608 INFO L78 Accepts]: Start accepts. Automaton has 15443 states and 21718 transitions. Word has length 7 [2021-11-06 13:58:22,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:58:22,608 INFO L470 AbstractCegarLoop]: Abstraction has 15443 states and 21718 transitions. [2021-11-06 13:58:22,609 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 13:58:22,609 INFO L276 IsEmpty]: Start isEmpty. Operand 15443 states and 21718 transitions. [2021-11-06 13:58:22,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-06 13:58:22,609 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:58:22,609 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:58:22,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 13:58:22,610 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [mwl8k_post_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr1ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-06 13:58:22,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:58:22,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1701289332, now seen corresponding path program 1 times [2021-11-06 13:58:22,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:58:22,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743492463] [2021-11-06 13:58:22,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:58:22,611 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:58:22,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:58:22,747 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 13:58:22,747 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:58:22,748 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743492463] [2021-11-06 13:58:22,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743492463] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:58:22,748 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:58:22,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:58:22,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544438696] [2021-11-06 13:58:22,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:58:22,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:58:22,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:58:22,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:58:22,749 INFO L87 Difference]: Start difference. First operand 15443 states and 21718 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 13:58:24,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:58:24,996 INFO L93 Difference]: Finished difference Result 15443 states and 21718 transitions. [2021-11-06 13:58:25,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:58:25,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2021-11-06 13:58:25,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:58:25,199 INFO L225 Difference]: With dead ends: 15443 [2021-11-06 13:58:25,200 INFO L226 Difference]: Without dead ends: 15438 [2021-11-06 13:58:25,208 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 13:58:25,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15438 states. [2021-11-06 13:58:25,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15438 to 15438. [2021-11-06 13:58:25,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15438 states, 15188 states have (on average 1.389583882012115) internal successors, (21105), 15231 states have internal predecessors, (21105), 202 states have call successors, (202), 8 states have call predecessors, (202), 8 states have return successors, (404), 202 states have call predecessors, (404), 202 states have call successors, (404) [2021-11-06 13:58:25,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15438 states to 15438 states and 21711 transitions. [2021-11-06 13:58:25,776 INFO L78 Accepts]: Start accepts. Automaton has 15438 states and 21711 transitions. Word has length 8 [2021-11-06 13:58:25,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:58:25,777 INFO L470 AbstractCegarLoop]: Abstraction has 15438 states and 21711 transitions. [2021-11-06 13:58:25,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 13:58:25,778 INFO L276 IsEmpty]: Start isEmpty. Operand 15438 states and 21711 transitions. [2021-11-06 13:58:25,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-06 13:58:25,785 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:58:25,785 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] [2021-11-06 13:58:25,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 13:58:25,786 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [mwl8k_post_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr1ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-06 13:58:25,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:58:25,786 INFO L85 PathProgramCache]: Analyzing trace with hash 825537041, now seen corresponding path program 1 times [2021-11-06 13:58:25,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:58:25,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309733490] [2021-11-06 13:58:25,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:58:25,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:58:25,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:58:25,969 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 13:58:25,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:58:25,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309733490] [2021-11-06 13:58:25,973 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309733490] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:58:25,973 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:58:25,973 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 13:58:25,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928662784] [2021-11-06 13:58:25,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 13:58:25,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:58:25,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 13:58:25,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 13:58:25,975 INFO L87 Difference]: Start difference. First operand 15438 states and 21711 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 13:58:26,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:58:26,739 INFO L93 Difference]: Finished difference Result 30922 states and 43468 transitions. [2021-11-06 13:58:26,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 13:58:26,740 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 36 [2021-11-06 13:58:26,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:58:26,778 INFO L225 Difference]: With dead ends: 30922 [2021-11-06 13:58:26,779 INFO L226 Difference]: Without dead ends: 15486 [2021-11-06 13:58:26,833 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 13:58:26,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15486 states. [2021-11-06 13:58:27,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15486 to 15438. [2021-11-06 13:58:27,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15438 states, 15188 states have (on average 1.3801027126678957) internal successors, (20961), 15231 states have internal predecessors, (20961), 202 states have call successors, (202), 8 states have call predecessors, (202), 8 states have return successors, (404), 202 states have call predecessors, (404), 202 states have call successors, (404) [2021-11-06 13:58:27,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15438 states to 15438 states and 21567 transitions. [2021-11-06 13:58:27,164 INFO L78 Accepts]: Start accepts. Automaton has 15438 states and 21567 transitions. Word has length 36 [2021-11-06 13:58:27,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:58:27,164 INFO L470 AbstractCegarLoop]: Abstraction has 15438 states and 21567 transitions. [2021-11-06 13:58:27,165 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 13:58:27,165 INFO L276 IsEmpty]: Start isEmpty. Operand 15438 states and 21567 transitions. [2021-11-06 13:58:27,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-06 13:58:27,168 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:58:27,168 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] [2021-11-06 13:58:27,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 13:58:27,168 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [mwl8k_post_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr1ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-06 13:58:27,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:58:27,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1750950292, now seen corresponding path program 1 times [2021-11-06 13:58:27,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:58:27,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641122006] [2021-11-06 13:58:27,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:58:27,169 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:58:27,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:58:27,375 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 13:58:27,376 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:58:27,376 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641122006] [2021-11-06 13:58:27,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641122006] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:58:27,377 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:58:27,377 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 13:58:27,377 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554465305] [2021-11-06 13:58:27,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 13:58:27,378 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:58:27,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 13:58:27,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 13:58:27,379 INFO L87 Difference]: Start difference. First operand 15438 states and 21567 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 13:58:31,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:58:31,012 INFO L93 Difference]: Finished difference Result 125800 states and 174587 transitions. [2021-11-06 13:58:31,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-06 13:58:31,019 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 39 [2021-11-06 13:58:31,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:58:31,436 INFO L225 Difference]: With dead ends: 125800 [2021-11-06 13:58:31,436 INFO L226 Difference]: Without dead ends: 110364 [2021-11-06 13:58:31,523 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-06 13:58:31,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110364 states. [2021-11-06 13:58:32,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110364 to 15456. [2021-11-06 13:58:32,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15456 states, 15206 states have (on average 1.3796527686439564) internal successors, (20979), 15249 states have internal predecessors, (20979), 202 states have call successors, (202), 8 states have call predecessors, (202), 8 states have return successors, (404), 202 states have call predecessors, (404), 202 states have call successors, (404) [2021-11-06 13:58:32,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15456 states to 15456 states and 21585 transitions. [2021-11-06 13:58:32,696 INFO L78 Accepts]: Start accepts. Automaton has 15456 states and 21585 transitions. Word has length 39 [2021-11-06 13:58:32,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:58:32,696 INFO L470 AbstractCegarLoop]: Abstraction has 15456 states and 21585 transitions. [2021-11-06 13:58:32,697 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 13:58:32,697 INFO L276 IsEmpty]: Start isEmpty. Operand 15456 states and 21585 transitions. [2021-11-06 13:58:32,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-06 13:58:32,700 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:58:32,700 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] [2021-11-06 13:58:32,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-06 13:58:32,700 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [mwl8k_post_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr1ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-06 13:58:32,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:58:32,701 INFO L85 PathProgramCache]: Analyzing trace with hash 504688916, now seen corresponding path program 1 times [2021-11-06 13:58:32,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:58:32,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010562251] [2021-11-06 13:58:32,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:58:32,701 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:58:32,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:58:32,895 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 13:58:32,896 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:58:32,896 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010562251] [2021-11-06 13:58:32,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010562251] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:58:32,896 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:58:32,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 13:58:32,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457178550] [2021-11-06 13:58:32,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 13:58:32,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:58:32,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 13:58:32,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 13:58:32,898 INFO L87 Difference]: Start difference. First operand 15456 states and 21585 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 13:58:37,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:58:37,300 INFO L93 Difference]: Finished difference Result 126474 states and 175425 transitions. [2021-11-06 13:58:37,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-06 13:58:37,301 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 39 [2021-11-06 13:58:37,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:58:37,749 INFO L225 Difference]: With dead ends: 126474 [2021-11-06 13:58:37,749 INFO L226 Difference]: Without dead ends: 111020 [2021-11-06 13:58:37,821 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-06 13:58:37,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111020 states. [2021-11-06 13:58:39,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111020 to 15468. [2021-11-06 13:58:39,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15468 states, 15218 states have (on average 1.3793533972926797) internal successors, (20991), 15261 states have internal predecessors, (20991), 202 states have call successors, (202), 8 states have call predecessors, (202), 8 states have return successors, (404), 202 states have call predecessors, (404), 202 states have call successors, (404) [2021-11-06 13:58:39,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15468 states to 15468 states and 21597 transitions. [2021-11-06 13:58:39,324 INFO L78 Accepts]: Start accepts. Automaton has 15468 states and 21597 transitions. Word has length 39 [2021-11-06 13:58:39,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:58:39,324 INFO L470 AbstractCegarLoop]: Abstraction has 15468 states and 21597 transitions. [2021-11-06 13:58:39,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 13:58:39,325 INFO L276 IsEmpty]: Start isEmpty. Operand 15468 states and 21597 transitions. [2021-11-06 13:58:39,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-06 13:58:39,328 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:58:39,329 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:58:39,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-06 13:58:39,329 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [mwl8k_post_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr1ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-06 13:58:39,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:58:39,329 INFO L85 PathProgramCache]: Analyzing trace with hash -31052317, now seen corresponding path program 1 times [2021-11-06 13:58:39,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:58:39,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165987524] [2021-11-06 13:58:39,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:58:39,330 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:58:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 13:58:39,522 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 13:58:39,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 13:58:39,522 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165987524] [2021-11-06 13:58:39,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165987524] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 13:58:39,523 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 13:58:39,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 13:58:39,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170870590] [2021-11-06 13:58:39,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 13:58:39,524 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 13:58:39,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 13:58:39,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 13:58:39,524 INFO L87 Difference]: Start difference. First operand 15468 states and 21597 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:58:42,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 13:58:42,384 INFO L93 Difference]: Finished difference Result 71900 states and 100201 transitions. [2021-11-06 13:58:42,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 13:58:42,385 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-06 13:58:42,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 13:58:42,517 INFO L225 Difference]: With dead ends: 71900 [2021-11-06 13:58:42,517 INFO L226 Difference]: Without dead ends: 56434 [2021-11-06 13:58:42,565 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 13:58:42,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56434 states. [2021-11-06 13:58:43,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56434 to 15492. [2021-11-06 13:58:43,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15492 states, 15242 states have (on average 1.378756068757381) internal successors, (21015), 15285 states have internal predecessors, (21015), 202 states have call successors, (202), 8 states have call predecessors, (202), 8 states have return successors, (404), 202 states have call predecessors, (404), 202 states have call successors, (404) [2021-11-06 13:58:43,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15492 states to 15492 states and 21621 transitions. [2021-11-06 13:58:43,697 INFO L78 Accepts]: Start accepts. Automaton has 15492 states and 21621 transitions. Word has length 42 [2021-11-06 13:58:43,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 13:58:43,698 INFO L470 AbstractCegarLoop]: Abstraction has 15492 states and 21621 transitions. [2021-11-06 13:58:43,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 13:58:43,698 INFO L276 IsEmpty]: Start isEmpty. Operand 15492 states and 21621 transitions. [2021-11-06 13:58:43,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-06 13:58:43,702 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 13:58:43,702 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:58:43,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-06 13:58:43,702 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [mwl8k_post_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr1ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-06 13:58:43,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 13:58:43,703 INFO L85 PathProgramCache]: Analyzing trace with hash 514761064, now seen corresponding path program 1 times [2021-11-06 13:58:43,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 13:58:43,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172367191] [2021-11-06 13:58:43,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 13:58:43,704 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 13:58:46,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-06 13:58:46,307 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-06 13:58:48,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-06 13:58:48,432 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-06 13:58:48,432 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-06 13:58:48,433 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,434 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mwl8k_post_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,435 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mwl8k_post_cmdErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,435 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location mwl8k_post_cmdErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,435 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,435 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,435 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,436 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,436 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,436 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,436 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,437 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,437 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,437 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,438 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,438 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,438 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,438 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,438 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,438 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,439 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,439 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,439 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,439 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,439 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,439 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,440 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,440 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,440 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,440 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,440 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,440 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,442 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,442 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,442 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,444 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,445 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,445 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,445 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,445 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,445 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,447 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION [2021-11-06 13:58:48,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-06 13:58:48,451 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 13:58:48,454 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-06 13:58:48,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 01:58:48 BoogieIcfgContainer [2021-11-06 13:58:48,760 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-06 13:58:48,760 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-06 13:58:48,761 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-06 13:58:48,761 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-06 13:58:48,761 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 01:58:15" (3/4) ... [2021-11-06 13:58:48,768 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-06 13:58:48,768 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-06 13:58:48,770 INFO L168 Benchmark]: Toolchain (without parser) took 108131.12 ms. Allocated memory was 107.0 MB in the beginning and 7.3 GB in the end (delta: 7.2 GB). Free memory was 78.2 MB in the beginning and 5.7 GB in the end (delta: -5.7 GB). Peak memory consumption was 1.5 GB. Max. memory is 16.1 GB. [2021-11-06 13:58:48,772 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 75.5 MB. Free memory was 35.2 MB in the beginning and 35.1 MB in the end (delta: 36.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-06 13:58:48,772 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2579.78 ms. Allocated memory was 107.0 MB in the beginning and 228.6 MB in the end (delta: 121.6 MB). Free memory was 77.9 MB in the beginning and 115.7 MB in the end (delta: -37.8 MB). Peak memory consumption was 93.3 MB. Max. memory is 16.1 GB. [2021-11-06 13:58:48,773 INFO L168 Benchmark]: Boogie Procedure Inliner took 1267.25 ms. Allocated memory was 228.6 MB in the beginning and 404.8 MB in the end (delta: 176.2 MB). Free memory was 115.7 MB in the beginning and 201.3 MB in the end (delta: -85.6 MB). Peak memory consumption was 162.9 MB. Max. memory is 16.1 GB. [2021-11-06 13:58:48,773 INFO L168 Benchmark]: Boogie Preprocessor took 1324.50 ms. Allocated memory was 404.8 MB in the beginning and 809.5 MB in the end (delta: 404.8 MB). Free memory was 201.3 MB in the beginning and 415.6 MB in the end (delta: -214.3 MB). Peak memory consumption was 193.6 MB. Max. memory is 16.1 GB. [2021-11-06 13:58:48,773 INFO L168 Benchmark]: RCFGBuilder took 69676.91 ms. Allocated memory was 809.5 MB in the beginning and 3.2 GB in the end (delta: 2.4 GB). Free memory was 415.6 MB in the beginning and 2.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 1.8 GB. Max. memory is 16.1 GB. [2021-11-06 13:58:48,773 INFO L168 Benchmark]: TraceAbstraction took 33269.93 ms. Allocated memory was 3.2 GB in the beginning and 7.3 GB in the end (delta: 4.1 GB). Free memory was 2.3 GB in the beginning and 5.7 GB in the end (delta: -3.4 GB). Peak memory consumption was 1.1 GB. Max. memory is 16.1 GB. [2021-11-06 13:58:48,774 INFO L168 Benchmark]: Witness Printer took 7.58 ms. Allocated memory is still 7.3 GB. Free memory is still 5.7 GB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-06 13:58:48,776 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 75.5 MB. Free memory was 35.2 MB in the beginning and 35.1 MB in the end (delta: 36.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 2579.78 ms. Allocated memory was 107.0 MB in the beginning and 228.6 MB in the end (delta: 121.6 MB). Free memory was 77.9 MB in the beginning and 115.7 MB in the end (delta: -37.8 MB). Peak memory consumption was 93.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 1267.25 ms. Allocated memory was 228.6 MB in the beginning and 404.8 MB in the end (delta: 176.2 MB). Free memory was 115.7 MB in the beginning and 201.3 MB in the end (delta: -85.6 MB). Peak memory consumption was 162.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 1324.50 ms. Allocated memory was 404.8 MB in the beginning and 809.5 MB in the end (delta: 404.8 MB). Free memory was 201.3 MB in the beginning and 415.6 MB in the end (delta: -214.3 MB). Peak memory consumption was 193.6 MB. Max. memory is 16.1 GB. * RCFGBuilder took 69676.91 ms. Allocated memory was 809.5 MB in the beginning and 3.2 GB in the end (delta: 2.4 GB). Free memory was 415.6 MB in the beginning and 2.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 1.8 GB. Max. memory is 16.1 GB. * TraceAbstraction took 33269.93 ms. Allocated memory was 3.2 GB in the beginning and 7.3 GB in the end (delta: 4.1 GB). Free memory was 2.3 GB in the beginning and 5.7 GB in the end (delta: -3.4 GB). Peak memory consumption was 1.1 GB. Max. memory is 16.1 GB. * Witness Printer took 7.58 ms. Allocated memory is still 7.3 GB. Free memory is still 5.7 GB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 12414, overapproximation of bitwiseAnd at line 11962. Possible FailurePath: [L7468] static bool ap_mode_default ; [L7469-L7483] static struct ieee80211_channel const mwl8k_channels_24[14U] = { {0, 2412U, 1U, 0U, 0, 0, 0, (_Bool)0, 0U, 0, 0, 0, 0UL}, {0, 2417U, 2U, 0U, 0, 0, 0, (_Bool)0, 0U, 0, 0, 0, 0UL}, {0, 2422U, 3U, 0U, 0, 0, 0, (_Bool)0, 0U, 0, 0, 0, 0UL}, {0, 2427U, 4U, 0U, 0, 0, 0, (_Bool)0, 0U, 0, 0, 0, 0UL}, {0, 2432U, 5U, 0U, 0, 0, 0, (_Bool)0, 0U, 0, 0, 0, 0UL}, {0, 2437U, 6U, 0U, 0, 0, 0, (_Bool)0, 0U, 0, 0, 0, 0UL}, {0, 2442U, 7U, 0U, 0, 0, 0, (_Bool)0, 0U, 0, 0, 0, 0UL}, {0, 2447U, 8U, 0U, 0, 0, 0, (_Bool)0, 0U, 0, 0, 0, 0UL}, {0, 2452U, 9U, 0U, 0, 0, 0, (_Bool)0, 0U, 0, 0, 0, 0UL}, {0, 2457U, 10U, 0U, 0, 0, 0, (_Bool)0, 0U, 0, 0, 0, 0UL}, {0, 2462U, 11U, 0U, 0, 0, 0, (_Bool)0, 0U, 0, 0, 0, 0UL}, {0, 2467U, 12U, 0U, 0, 0, 0, (_Bool)0, 0U, 0, 0, 0, 0UL}, {0, 2472U, 13U, 0U, 0, 0, 0, (_Bool)0, 0U, 0, 0, 0, 0UL}, {0, 2484U, 14U, 0U, 0, 0, 0, (_Bool)0, 0U, 0, 0, 0, 0UL}}; [L7484-L7497] static struct ieee80211_rate const mwl8k_rates_24[13U] = { {0U, 10U, 2U, (unsigned short)0}, {0U, 20U, 4U, (unsigned short)0}, {0U, 55U, 11U, (unsigned short)0}, {0U, 110U, 22U, (unsigned short)0}, {0U, 220U, 44U, (unsigned short)0}, {0U, 60U, 12U, (unsigned short)0}, {0U, 90U, 18U, (unsigned short)0}, {0U, 120U, 24U, (unsigned short)0}, {0U, 180U, 36U, (unsigned short)0}, {0U, 240U, 48U, (unsigned short)0}, {0U, 360U, 72U, (unsigned short)0}, {0U, 480U, 96U, (unsigned short)0}, {0U, 540U, 108U, (unsigned short)0}}; [L7498-L7501] static struct ieee80211_channel const mwl8k_channels_50[4U] = { {1, 5180U, 36U, 0U, 0, 0, 0, (_Bool)0, 0U, 0, 0, 0, 0UL}, {1, 5200U, 40U, 0U, 0, 0, 0, (_Bool)0, 0U, 0, 0, 0, 0UL}, {1, 5220U, 44U, 0U, 0, 0, 0, (_Bool)0, 0U, 0, 0, 0, 0UL}, {1, 5240U, 48U, 0U, 0, 0, 0, (_Bool)0, 0U, 0, 0, 0, 0UL}}; [L7502-L7510] static struct ieee80211_rate const mwl8k_rates_50[8U] = { {0U, 60U, 12U, (unsigned short)0}, {0U, 90U, 18U, (unsigned short)0}, {0U, 120U, 24U, (unsigned short)0}, {0U, 180U, 36U, (unsigned short)0}, {0U, 240U, 48U, (unsigned short)0}, {0U, 360U, 72U, (unsigned short)0}, {0U, 480U, 96U, (unsigned short)0}, {0U, 540U, 108U, (unsigned short)0}}; [L8149] static struct rxd_ops rxd_ap_ops = {32, & mwl8k_rxd_ap_init, & mwl8k_rxd_ap_refill, & mwl8k_rxd_ap_process}; [L8226] static struct rxd_ops rxd_sta_ops = {40, & mwl8k_rxd_sta_init, & mwl8k_rxd_sta_refill, & mwl8k_rxd_sta_process}; [L12378-L12384] static struct ieee80211_ops const mwl8k_ops = {& mwl8k_tx, & mwl8k_start, & mwl8k_stop, 0, 0, 0, & mwl8k_add_interface, 0, & mwl8k_remove_interface, & mwl8k_config, & mwl8k_bss_info_changed, 0, 0, & mwl8k_prepare_multicast, & mwl8k_configure_filter, 0, 0, & mwl8k_set_key, 0, 0, 0, 0, 0, 0, 0, 0, 0, & mwl8k_get_stats, 0, 0, & mwl8k_set_rts_threshold, & mwl8k_sta_add, & mwl8k_sta_remove, 0, 0, 0, 0, 0, & mwl8k_conf_tx, 0, 0, 0, 0, & mwl8k_ampdu_action, & mwl8k_get_survey, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}; [L12414-L12421] static struct mwl8k_device_info mwl8k_info_tbl[4U] = { {(char *)"88w8363", (char *)"mwl8k/helper_8363.fw", (char *)"mwl8k/fmimage_8363.fw", 0, 0, 0U}, {(char *)"88w8687", (char *)"mwl8k/helper_8687.fw", (char *)"mwl8k/fmimage_8687.fw", 0, 0, 0U}, {(char *)"88w8366", (char *)"mwl8k/helper_8366.fw", (char *)"mwl8k/fmimage_8366.fw", (char *)"mwl8k/fmimage_8366_ap-3.fw", & rxd_ap_ops, 3U}, {(char *)"88w8764", 0, 0, (char *)"mwl8k/fmimage_8764_ap-1.fw", & rxd_ap_ops, 1U}}; [L12422] struct pci_device_id const __mod_pci_device_table ; [L12804-L12805] static struct ieee80211_iface_limit const ap_if_limits[2U] = { {8U, 8U}, {1U, 4U}}; [L12806-L12807] static struct ieee80211_iface_combination const ap_if_comb = {(struct ieee80211_iface_limit const *)(& ap_if_limits), 1U, 8U, 2U, (_Bool)0, (unsigned char)0}; [L13105] int LDV_IN_INTERRUPT ; [L13408] static int ldv_mutex_fw_mutex_of_mwl8k_priv ; [L13515] static int ldv_mutex_lock ; [L13622] static int ldv_mutex_mutex_of_device ; VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, ap_if_comb={177:0}, ap_if_limits={181:0}, ap_mode_default=0, LDV_IN_INTERRUPT=0, ldv_mutex_fw_mutex_of_mwl8k_priv=0, ldv_mutex_lock=0, ldv_mutex_mutex_of_device=0, mwl8k_channels_24={258:0}, mwl8k_channels_50={345:0}, mwl8k_info_tbl={170:0}, mwl8k_ops={271:0}, mwl8k_rates_24={348:0}, mwl8k_rates_50={247:0}, rxd_ap_ops={141:0}, rxd_sta_ops={255:0}] [L13108] void *var_mwl8k_rxd_ap_init_13_p0 ; [L13109] dma_addr_t var_mwl8k_rxd_ap_init_13_p1 ; [L13110] void *var_mwl8k_rxd_ap_refill_14_p0 ; [L13111] dma_addr_t var_mwl8k_rxd_ap_refill_14_p1 ; [L13112] int var_mwl8k_rxd_ap_refill_14_p2 ; [L13113] void *var_mwl8k_rxd_ap_process_15_p0 ; [L13114] struct ieee80211_rx_status *var_group1 ; [L13115] __le16 *var_mwl8k_rxd_ap_process_15_p2 ; [L13116] s8 *var_mwl8k_rxd_ap_process_15_p3 ; [L13117] void *var_mwl8k_rxd_sta_init_16_p0 ; [L13118] dma_addr_t var_mwl8k_rxd_sta_init_16_p1 ; [L13119] void *var_mwl8k_rxd_sta_refill_17_p0 ; [L13120] dma_addr_t var_mwl8k_rxd_sta_refill_17_p1 ; [L13121] int var_mwl8k_rxd_sta_refill_17_p2 ; [L13122] void *var_mwl8k_rxd_sta_process_18_p0 ; [L13123] __le16 *var_mwl8k_rxd_sta_process_18_p2 ; [L13124] s8 *var_mwl8k_rxd_sta_process_18_p3 ; [L13125] struct ieee80211_hw *var_group2 ; [L13126] struct ieee80211_tx_control *var_group3 ; [L13127] struct sk_buff *var_mwl8k_tx_100_p2 ; [L13128] struct ieee80211_vif *var_group4 ; [L13129] u32 var_mwl8k_config_107_p1 ; [L13130] struct ieee80211_bss_conf *var_mwl8k_bss_info_changed_110_p2 ; [L13131] u32 var_mwl8k_bss_info_changed_110_p3 ; [L13132] struct netdev_hw_addr_list *var_group5 ; [L13133] unsigned int var_mwl8k_configure_filter_114_p1 ; [L13134] unsigned int *var_mwl8k_configure_filter_114_p2 ; [L13135] u64 var_mwl8k_configure_filter_114_p3 ; [L13136] enum set_key_cmd var_mwl8k_set_key_94_p1 ; [L13137] struct ieee80211_vif *var_mwl8k_set_key_94_p2 ; [L13138] struct ieee80211_sta *var_mwl8k_set_key_94_p3 ; [L13139] struct ieee80211_key_conf *var_mwl8k_set_key_94_p4 ; [L13140] u32 var_mwl8k_set_rts_threshold_115_p1 ; [L13141] struct ieee80211_sta *var_mwl8k_sta_add_117_p2 ; [L13142] struct ieee80211_sta *var_mwl8k_sta_remove_116_p2 ; [L13143] u16 var_mwl8k_conf_tx_118_p2 ; [L13144] struct ieee80211_tx_queue_params const *var_mwl8k_conf_tx_118_p3 ; [L13145] struct ieee80211_low_level_stats *var_group6 ; [L13146] int var_mwl8k_get_survey_120_p1 ; [L13147] struct survey_info *var_mwl8k_get_survey_120_p2 ; [L13148] enum ieee80211_ampdu_mlme_action var_mwl8k_ampdu_action_121_p2 ; [L13149] struct ieee80211_sta *var_mwl8k_ampdu_action_121_p3 ; [L13150] u16 var_mwl8k_ampdu_action_121_p4 ; [L13151] u16 *var_mwl8k_ampdu_action_121_p5 ; [L13152] u8 var_mwl8k_ampdu_action_121_p6 ; [L13153] struct pci_dev *var_group7 ; [L13154] struct pci_device_id const *var_mwl8k_probe_130_p1 ; [L13155] int res_mwl8k_probe_130 ; [L13156] int var_mwl8k_interrupt_97_p0 ; [L13157] void *var_mwl8k_interrupt_97_p1 ; [L13158] int ldv_s_mwl8k_driver_pci_driver ; [L13159] int tmp ; [L13160] int tmp___0 ; [L13162] ldv_s_mwl8k_driver_pci_driver = 0 [L13163] LDV_IN_INTERRUPT = 1 [L13732] ldv_mutex_fw_mutex_of_mwl8k_priv = 1 [L13733] ldv_mutex_lock = 1 [L13734] ldv_mutex_mutex_of_device = 1 VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, ap_if_comb={177:0}, ap_if_limits={181:0}, ap_mode_default=0, LDV_IN_INTERRUPT=1, ldv_mutex_fw_mutex_of_mwl8k_priv=1, ldv_mutex_lock=1, ldv_mutex_mutex_of_device=1, mwl8k_channels_24={258:0}, mwl8k_channels_50={345:0}, mwl8k_info_tbl={170:0}, mwl8k_ops={271:0}, mwl8k_rates_24={348:0}, mwl8k_rates_50={247:0}, rxd_ap_ops={141:0}, rxd_sta_ops={255:0}] [L13302] tmp___0 = __VERIFIER_nondet_int() [L13303] COND TRUE tmp___0 != 0 || ldv_s_mwl8k_driver_pci_driver != 0 VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, ap_if_comb={177:0}, ap_if_limits={181:0}, ap_mode_default=0, LDV_IN_INTERRUPT=1, ldv_mutex_fw_mutex_of_mwl8k_priv=1, ldv_mutex_lock=1, ldv_mutex_mutex_of_device=1, mwl8k_channels_24={258:0}, mwl8k_channels_50={345:0}, mwl8k_info_tbl={170:0}, mwl8k_ops={271:0}, mwl8k_rates_24={348:0}, mwl8k_rates_50={247:0}, rxd_ap_ops={141:0}, rxd_sta_ops={255:0}] [L13167] tmp = __VERIFIER_nondet_int() [L13169] case 0: [L13173] case 1: [L13178] case 2: [L13183] case 3: [L13187] case 4: [L13192] case 5: [L13197] case 6: [L13201] case 7: [L13205] case 8: [L13209] case 9: [L13213] case 10: [L13217] case 11: [L13221] case 12: VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, ap_if_comb={177:0}, ap_if_limits={181:0}, ap_mode_default=0, LDV_IN_INTERRUPT=1, ldv_mutex_fw_mutex_of_mwl8k_priv=1, ldv_mutex_lock=1, ldv_mutex_mutex_of_device=1, mwl8k_channels_24={258:0}, mwl8k_channels_50={345:0}, mwl8k_info_tbl={170:0}, mwl8k_ops={271:0}, mwl8k_rates_24={348:0}, mwl8k_rates_50={247:0}, rxd_ap_ops={141:0}, rxd_sta_ops={255:0}] [L11975] EXPR vif->type VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, ap_if_comb={177:0}, ap_if_limits={181:0}, ap_mode_default=0, LDV_IN_INTERRUPT=1, ldv_mutex_fw_mutex_of_mwl8k_priv=1, ldv_mutex_lock=1, ldv_mutex_mutex_of_device=1, mwl8k_channels_24={258:0}, mwl8k_channels_50={345:0}, mwl8k_info_tbl={170:0}, mwl8k_ops={271:0}, mwl8k_rates_24={348:0}, mwl8k_rates_50={247:0}, rxd_ap_ops={141:0}, rxd_sta_ops={255:0}] [L11975] COND FALSE !((unsigned int )vif->type == 2U) [L11979] EXPR vif->type VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, ap_if_comb={177:0}, ap_if_limits={181:0}, ap_mode_default=0, LDV_IN_INTERRUPT=1, ldv_mutex_fw_mutex_of_mwl8k_priv=1, ldv_mutex_lock=1, ldv_mutex_mutex_of_device=1, mwl8k_channels_24={258:0}, mwl8k_channels_50={345:0}, mwl8k_info_tbl={170:0}, mwl8k_ops={271:0}, mwl8k_rates_24={348:0}, mwl8k_rates_50={247:0}, rxd_ap_ops={141:0}, rxd_sta_ops={255:0}] [L11979] COND TRUE (unsigned int )vif->type == 3U [L11920] int rc ; [L11921] int tmp ; [L11922] int idx ; [L11923] int rate ; [L11924] struct sk_buff *skb ; [L9337] struct mwl8k_priv *priv ; [L9338] int rc ; [L9339] struct task_struct *tmp ; [L9341] EXPR hw->priv [L9341] priv = (struct mwl8k_priv *)hw->priv [L6467] struct task_struct *pfo_ret__ ; [L6470] case 1UL: [L6473] case 2UL: [L6476] case 4UL: [L6479] case 8UL: VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, ap_if_comb={177:0}, ap_if_limits={181:0}, ap_mode_default=0, LDV_IN_INTERRUPT=1, ldv_mutex_fw_mutex_of_mwl8k_priv=1, ldv_mutex_lock=1, ldv_mutex_mutex_of_device=1, mwl8k_channels_24={258:0}, mwl8k_channels_50={345:0}, mwl8k_info_tbl={170:0}, mwl8k_ops={271:0}, mwl8k_rates_24={348:0}, mwl8k_rates_50={247:0}, rxd_ap_ops={141:0}, rxd_sta_ops={255:0}] [L6486] return (pfo_ret__); VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, ap_if_comb={177:0}, ap_if_limits={181:0}, ap_mode_default=0, LDV_IN_INTERRUPT=1, ldv_mutex_fw_mutex_of_mwl8k_priv=1, ldv_mutex_lock=1, ldv_mutex_mutex_of_device=1, mwl8k_channels_24={258:0}, mwl8k_channels_50={345:0}, mwl8k_info_tbl={170:0}, mwl8k_ops={271:0}, mwl8k_rates_24={348:0}, mwl8k_rates_50={247:0}, rxd_ap_ops={141:0}, rxd_sta_ops={255:0}] [L9342] tmp = get_current() [L9343] EXPR priv->fw_mutex_owner VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, ap_if_comb={177:0}, ap_if_limits={181:0}, ap_mode_default=0, LDV_IN_INTERRUPT=1, ldv_mutex_fw_mutex_of_mwl8k_priv=1, ldv_mutex_lock=1, ldv_mutex_mutex_of_device=1, mwl8k_channels_24={258:0}, mwl8k_channels_50={345:0}, mwl8k_info_tbl={170:0}, mwl8k_ops={271:0}, mwl8k_rates_24={348:0}, mwl8k_rates_50={247:0}, rxd_ap_ops={141:0}, rxd_sta_ops={255:0}] [L9343] COND FALSE !((unsigned long )priv->fw_mutex_owner != (unsigned long )tmp) [L9359] EXPR priv->fw_mutex_depth [L9359] priv->fw_mutex_depth = priv->fw_mutex_depth + 1 [L9360] return (0); VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, ap_if_comb={177:0}, ap_if_limits={181:0}, ap_mode_default=0, LDV_IN_INTERRUPT=1, ldv_mutex_fw_mutex_of_mwl8k_priv=1, ldv_mutex_lock=1, ldv_mutex_mutex_of_device=1, mwl8k_channels_24={258:0}, mwl8k_channels_50={345:0}, mwl8k_info_tbl={170:0}, mwl8k_ops={271:0}, mwl8k_rates_24={348:0}, mwl8k_rates_50={247:0}, rxd_ap_ops={141:0}, rxd_sta_ops={255:0}] [L11926] tmp = mwl8k_fw_lock(hw) [L11927] COND FALSE !(tmp != 0) VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, ap_if_comb={177:0}, ap_if_limits={181:0}, ap_mode_default=0, LDV_IN_INTERRUPT=1, ldv_mutex_fw_mutex_of_mwl8k_priv=1, ldv_mutex_lock=1, ldv_mutex_mutex_of_device=1, mwl8k_channels_24={258:0}, mwl8k_channels_50={345:0}, mwl8k_info_tbl={170:0}, mwl8k_ops={271:0}, mwl8k_rates_24={348:0}, mwl8k_rates_50={247:0}, rxd_ap_ops={141:0}, rxd_sta_ops={255:0}] [L11931] COND FALSE !((changed & 4U) != 0U) VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, ap_if_comb={177:0}, ap_if_limits={181:0}, ap_mode_default=0, LDV_IN_INTERRUPT=1, ldv_mutex_fw_mutex_of_mwl8k_priv=1, ldv_mutex_lock=1, ldv_mutex_mutex_of_device=1, mwl8k_channels_24={258:0}, mwl8k_channels_50={345:0}, mwl8k_info_tbl={170:0}, mwl8k_ops={271:0}, mwl8k_rates_24={348:0}, mwl8k_rates_50={247:0}, rxd_ap_ops={141:0}, rxd_sta_ops={255:0}] [L11939] COND FALSE !((changed & 32U) != 0U) VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, ap_if_comb={177:0}, ap_if_limits={181:0}, ap_mode_default=0, LDV_IN_INTERRUPT=1, ldv_mutex_fw_mutex_of_mwl8k_priv=1, ldv_mutex_lock=1, ldv_mutex_mutex_of_device=1, mwl8k_channels_24={258:0}, mwl8k_channels_50={345:0}, mwl8k_info_tbl={170:0}, mwl8k_ops={271:0}, mwl8k_rates_24={348:0}, mwl8k_rates_50={247:0}, rxd_ap_ops={141:0}, rxd_sta_ops={255:0}] [L11953] COND FALSE !((changed & 320U) != 0U) VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, ap_if_comb={177:0}, ap_if_limits={181:0}, ap_mode_default=0, LDV_IN_INTERRUPT=1, ldv_mutex_fw_mutex_of_mwl8k_priv=1, ldv_mutex_lock=1, ldv_mutex_mutex_of_device=1, mwl8k_channels_24={258:0}, mwl8k_channels_50={345:0}, mwl8k_info_tbl={170:0}, mwl8k_ops={271:0}, mwl8k_rates_24={348:0}, mwl8k_rates_50={247:0}, rxd_ap_ops={141:0}, rxd_sta_ops={255:0}] [L11962] COND FALSE !((changed & 512U) != 0U) VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, ap_if_comb={177:0}, ap_if_limits={181:0}, ap_mode_default=0, LDV_IN_INTERRUPT=1, ldv_mutex_fw_mutex_of_mwl8k_priv=1, ldv_mutex_lock=1, ldv_mutex_mutex_of_device=1, mwl8k_channels_24={258:0}, mwl8k_channels_50={345:0}, mwl8k_info_tbl={170:0}, mwl8k_ops={271:0}, mwl8k_rates_24={348:0}, mwl8k_rates_50={247:0}, rxd_ap_ops={141:0}, rxd_sta_ops={255:0}] [L9365] struct mwl8k_priv *priv ; [L9367] EXPR hw->priv [L9367] priv = (struct mwl8k_priv *)hw->priv [L9368] EXPR priv->fw_mutex_depth [L9368] priv->fw_mutex_depth = priv->fw_mutex_depth - 1 [L9369] EXPR priv->fw_mutex_depth VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, ap_if_comb={177:0}, ap_if_limits={181:0}, ap_mode_default=0, LDV_IN_INTERRUPT=1, ldv_mutex_fw_mutex_of_mwl8k_priv=1, ldv_mutex_lock=1, ldv_mutex_mutex_of_device=1, mwl8k_channels_24={258:0}, mwl8k_channels_50={345:0}, mwl8k_info_tbl={170:0}, mwl8k_ops={271:0}, mwl8k_rates_24={348:0}, mwl8k_rates_50={247:0}, rxd_ap_ops={141:0}, rxd_sta_ops={255:0}] [L9369] COND TRUE priv->fw_mutex_depth == 0 [L9370] EXPR priv->hw_restart_in_progress VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, ap_if_comb={177:0}, ap_if_limits={181:0}, ap_mode_default=0, LDV_IN_INTERRUPT=1, ldv_mutex_fw_mutex_of_mwl8k_priv=1, ldv_mutex_lock=1, ldv_mutex_mutex_of_device=1, mwl8k_channels_24={258:0}, mwl8k_channels_50={345:0}, mwl8k_info_tbl={170:0}, mwl8k_ops={271:0}, mwl8k_rates_24={348:0}, mwl8k_rates_50={247:0}, rxd_ap_ops={141:0}, rxd_sta_ops={255:0}] [L9370] COND TRUE ! priv->hw_restart_in_progress [L9374] priv->fw_mutex_owner = 0 [L13507] COND FALSE !(ldv_mutex_fw_mutex_of_mwl8k_priv == 2) VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, ap_if_comb={177:0}, ap_if_limits={181:0}, ap_mode_default=0, LDV_IN_INTERRUPT=1, ldv_mutex_fw_mutex_of_mwl8k_priv=1, ldv_mutex_lock=1, ldv_mutex_mutex_of_device=1, mwl8k_channels_24={258:0}, mwl8k_channels_50={345:0}, mwl8k_info_tbl={170:0}, mwl8k_ops={271:0}, mwl8k_rates_24={348:0}, mwl8k_rates_50={247:0}, rxd_ap_ops={141:0}, rxd_sta_ops={255:0}] [L13398] reach_error() VAL [__mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, __mod_pci_device_table=0, ap_if_comb={177:0}, ap_if_limits={181:0}, ap_mode_default=0, LDV_IN_INTERRUPT=1, ldv_mutex_fw_mutex_of_mwl8k_priv=1, ldv_mutex_lock=1, ldv_mutex_mutex_of_device=1, mwl8k_channels_24={258:0}, mwl8k_channels_50={345:0}, mwl8k_info_tbl={170:0}, mwl8k_ops={271:0}, mwl8k_rates_24={348:0}, mwl8k_rates_50={247:0}, rxd_ap_ops={141:0}, rxd_sta_ops={255:0}] - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 13398]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 8322 locations, 42 error locations. Started 1 CEGAR loops. OverallTime: 32.8s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 20.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 152019 SDtfs, 188459 SDslu, 254991 SDs, 0 SdLazy, 1357 SolverSat, 2060 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 9.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15492occurred in iteration=7, InterpolantAutomatonStates: 35, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.4s AutomataMinimizationTime, 7 MinimizatonAttempts, 231476 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 219 NumberOfCodeBlocks, 219 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 170 ConstructedInterpolants, 0 QuantifiedInterpolants, 211 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-06 13:58:48,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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-consumption/linux-3.8-rc1-32_7a-drivers--net--wireless--mwl8k.ko-ldv_main0.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.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 0b76be36f18ad21ad9f8bdc1086d9a5532c87a2c14457e790c7f2f104cdb0ee5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 13:58:50,673 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 13:58:50,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 13:58:50,698 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 13:58:50,699 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 13:58:50,701 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 13:58:50,702 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 13:58:50,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 13:58:50,708 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 13:58:50,711 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 13:58:50,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 13:58:50,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 13:58:50,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 13:58:50,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 13:58:50,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 13:58:50,719 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 13:58:50,719 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 13:58:50,720 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 13:58:50,722 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 13:58:50,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 13:58:50,728 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 13:58:50,728 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 13:58:50,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 13:58:50,730 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 13:58:50,735 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 13:58:50,735 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 13:58:50,735 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 13:58:50,736 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 13:58:50,737 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 13:58:50,737 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 13:58:50,738 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 13:58:50,738 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 13:58:50,739 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 13:58:50,740 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 13:58:50,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 13:58:50,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 13:58:50,741 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 13:58:50,741 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 13:58:50,741 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 13:58:50,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 13:58:50,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 13:58:50,746 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-06 13:58:50,768 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 13:58:50,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 13:58:50,771 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 13:58:50,771 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 13:58:50,772 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 13:58:50,772 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 13:58:50,772 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 13:58:50,772 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 13:58:50,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 13:58:50,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 13:58:50,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 13:58:50,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 13:58:50,773 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-06 13:58:50,773 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-06 13:58:50,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 13:58:50,773 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 13:58:50,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 13:58:50,773 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 13:58:50,773 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 13:58:50,773 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 13:58:50,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 13:58:50,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 13:58:50,774 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 13:58:50,774 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 13:58:50,774 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-06 13:58:50,778 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-06 13:58:50,778 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 13:58:50,778 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 13:58:50,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 13:58:50,780 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 13:58:50,780 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-06 13:58:50,780 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b76be36f18ad21ad9f8bdc1086d9a5532c87a2c14457e790c7f2f104cdb0ee5 [2021-11-06 13:58:51,030 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 13:58:51,045 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 13:58:51,047 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 13:58:51,048 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 13:58:51,050 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 13:58:51,050 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--net--wireless--mwl8k.ko-ldv_main0.cil.out.i [2021-11-06 13:58:51,118 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a7d0db72/e9e8e80f6ebb4a558cf6e99e6949b9f2/FLAGd156ea368 [2021-11-06 13:58:51,818 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 13:58:51,819 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--net--wireless--mwl8k.ko-ldv_main0.cil.out.i [2021-11-06 13:58:51,865 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a7d0db72/e9e8e80f6ebb4a558cf6e99e6949b9f2/FLAGd156ea368 [2021-11-06 13:58:51,919 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a7d0db72/e9e8e80f6ebb4a558cf6e99e6949b9f2 [2021-11-06 13:58:51,923 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 13:58:51,925 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 13:58:51,927 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 13:58:51,927 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 13:58:51,930 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 13:58:51,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 01:58:51" (1/1) ... [2021-11-06 13:58:51,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@330937f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:58:51, skipping insertion in model container [2021-11-06 13:58:51,931 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 01:58:51" (1/1) ... [2021-11-06 13:58:51,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 13:58:52,060 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 13:58:54,168 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-consumption/linux-3.8-rc1-32_7a-drivers--net--wireless--mwl8k.ko-ldv_main0.cil.out.i[385601,385614] [2021-11-06 13:58:54,258 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 13:58:54,296 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 13:58:54,618 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-consumption/linux-3.8-rc1-32_7a-drivers--net--wireless--mwl8k.ko-ldv_main0.cil.out.i[385601,385614] [2021-11-06 13:58:54,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 13:58:54,753 INFO L208 MainTranslator]: Completed translation [2021-11-06 13:58:54,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:58:54 WrapperNode [2021-11-06 13:58:54,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 13:58:54,773 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 13:58:54,773 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 13:58:54,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 13:58:54,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:58:54" (1/1) ... [2021-11-06 13:58:54,917 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:58:54" (1/1) ... [2021-11-06 13:58:55,937 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 13:58:55,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 13:58:55,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 13:58:55,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 13:58:55,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:58:54" (1/1) ... [2021-11-06 13:58:55,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:58:54" (1/1) ... [2021-11-06 13:58:56,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:58:54" (1/1) ... [2021-11-06 13:58:56,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:58:54" (1/1) ... [2021-11-06 13:58:56,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:58:54" (1/1) ... [2021-11-06 13:58:56,946 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:58:54" (1/1) ... [2021-11-06 13:58:57,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:58:54" (1/1) ... [2021-11-06 13:58:57,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 13:58:57,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 13:58:57,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 13:58:57,297 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 13:58:57,298 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:58:54" (1/1) ... [2021-11-06 13:58:57,302 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 13:58:57,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 13:58:57,370 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 13:58:57,427 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 13:58:57,450 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-06 13:58:57,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 13:58:57,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-06 13:58:57,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-06 13:58:57,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-06 13:58:57,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-06 13:58:57,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 13:58:57,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 13:58:57,451 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 13:58:57,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2021-11-06 13:58:57,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2021-11-06 13:58:57,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-11-06 13:58:57,452 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_post_pervif_cmd [2021-11-06 13:58:57,452 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_post_pervif_cmd [2021-11-06 13:58:57,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2021-11-06 13:58:57,452 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 13:58:57,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 13:58:57,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-06 13:58:57,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-06 13:58:57,453 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_cmd_bss_start [2021-11-06 13:58:57,453 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_cmd_bss_start [2021-11-06 13:58:57,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-06 13:58:57,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 13:58:57,453 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2021-11-06 13:58:57,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 13:58:57,454 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_enable_bsses [2021-11-06 13:58:57,454 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_enable_bsses [2021-11-06 13:58:57,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 13:58:57,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 13:58:57,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-06 13:58:57,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-06 13:58:57,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2021-11-06 13:58:57,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-06 13:58:57,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 13:58:57,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-11-06 13:58:57,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2021-11-06 13:58:57,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2021-11-06 13:58:57,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2021-11-06 13:58:57,456 INFO L130 BoogieDeclarations]: Found specification of procedure mwl8k_post_cmd [2021-11-06 13:58:57,456 INFO L138 BoogieDeclarations]: Found implementation of procedure mwl8k_post_cmd [2021-11-06 14:07:31,588 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 14:07:31,589 INFO L299 CfgBuilder]: Removed 7922 assume(true) statements. [2021-11-06 14:07:31,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:07:31 BoogieIcfgContainer [2021-11-06 14:07:31,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 14:07:31,598 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 14:07:31,598 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 14:07:31,601 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 14:07:31,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 01:58:51" (1/3) ... [2021-11-06 14:07:31,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a1e27cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 02:07:31, skipping insertion in model container [2021-11-06 14:07:31,601 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 01:58:54" (2/3) ... [2021-11-06 14:07:31,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a1e27cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 02:07:31, skipping insertion in model container [2021-11-06 14:07:31,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 02:07:31" (3/3) ... [2021-11-06 14:07:31,603 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--net--wireless--mwl8k.ko-ldv_main0.cil.out.i [2021-11-06 14:07:31,606 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 14:07:31,606 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2021-11-06 14:07:31,664 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 14:07:31,669 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 14:07:31,670 INFO L340 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2021-11-06 14:07:31,756 INFO L276 IsEmpty]: Start isEmpty. Operand has 8322 states, 8174 states have (on average 1.4219476388549057) internal successors, (11623), 8218 states have internal predecessors, (11623), 101 states have call successors, (101), 4 states have call predecessors, (101), 4 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) [2021-11-06 14:07:31,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-06 14:07:31,759 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:07:31,759 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-06 14:07:31,760 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [mwl8k_post_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr1ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-06 14:07:31,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:07:31,763 INFO L85 PathProgramCache]: Analyzing trace with hash 2017409674, now seen corresponding path program 1 times [2021-11-06 14:07:31,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 14:07:31,778 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1484113348] [2021-11-06 14:07:31,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:07:31,778 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 14:07:31,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 14:07:31,780 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 14:07:31,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-06 14:07:35,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:07:36,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 1576 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-06 14:07:36,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 14:07:36,313 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 14:07:36,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 14:07:36,465 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 14:07:36,466 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 14:07:36,466 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1484113348] [2021-11-06 14:07:36,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1484113348] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 14:07:36,466 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:07:36,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-06 14:07:36,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381319467] [2021-11-06 14:07:36,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 14:07:36,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 14:07:36,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 14:07:36,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:07:36,493 INFO L87 Difference]: Start difference. First operand has 8322 states, 8174 states have (on average 1.4219476388549057) internal successors, (11623), 8218 states have internal predecessors, (11623), 101 states have call successors, (101), 4 states have call predecessors, (101), 4 states have return successors, (101), 101 states have call predecessors, (101), 101 states have call successors, (101) Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 14:07:41,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:07:41,590 INFO L93 Difference]: Finished difference Result 24013 states and 34573 transitions. [2021-11-06 14:07:41,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 14:07:41,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2021-11-06 14:07:41,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:07:41,664 INFO L225 Difference]: With dead ends: 24013 [2021-11-06 14:07:41,665 INFO L226 Difference]: Without dead ends: 15471 [2021-11-06 14:07:41,749 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 14:07:41,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15471 states. [2021-11-06 14:07:42,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15471 to 15445. [2021-11-06 14:07:42,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15445 states, 15193 states have (on average 1.3897189495162245) internal successors, (21114), 15238 states have internal predecessors, (21114), 202 states have call successors, (202), 8 states have call predecessors, (202), 8 states have return successors, (404), 202 states have call predecessors, (404), 202 states have call successors, (404) [2021-11-06 14:07:42,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15445 states to 15445 states and 21720 transitions. [2021-11-06 14:07:42,307 INFO L78 Accepts]: Start accepts. Automaton has 15445 states and 21720 transitions. Word has length 6 [2021-11-06 14:07:42,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:07:42,308 INFO L470 AbstractCegarLoop]: Abstraction has 15445 states and 21720 transitions. [2021-11-06 14:07:42,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 14:07:42,309 INFO L276 IsEmpty]: Start isEmpty. Operand 15445 states and 21720 transitions. [2021-11-06 14:07:42,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-06 14:07:42,309 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:07:42,309 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-06 14:07:42,352 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-06 14:07:42,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 14:07:42,525 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION === [mwl8k_post_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr1ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-06 14:07:42,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:07:42,525 INFO L85 PathProgramCache]: Analyzing trace with hash -1884783199, now seen corresponding path program 1 times [2021-11-06 14:07:42,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 14:07:42,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [442463695] [2021-11-06 14:07:42,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:07:42,530 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 14:07:42,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 14:07:42,531 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 14:07:42,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-06 14:07:46,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:07:46,622 INFO L263 TraceCheckSpWp]: Trace formula consists of 1577 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-06 14:07:46,624 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 14:07:46,895 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 14:07:46,895 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 14:07:47,081 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 14:07:47,082 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 14:07:47,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [442463695] [2021-11-06 14:07:47,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [442463695] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 14:07:47,082 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:07:47,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-06 14:07:47,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152148748] [2021-11-06 14:07:47,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 14:07:47,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 14:07:47,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 14:07:47,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:07:47,084 INFO L87 Difference]: Start difference. First operand 15445 states and 21720 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 14:07:49,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:07:49,762 INFO L93 Difference]: Finished difference Result 15445 states and 21720 transitions. [2021-11-06 14:07:49,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 14:07:49,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2021-11-06 14:07:49,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:07:49,826 INFO L225 Difference]: With dead ends: 15445 [2021-11-06 14:07:49,827 INFO L226 Difference]: Without dead ends: 15443 [2021-11-06 14:07:49,840 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 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 14:07:49,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15443 states. [2021-11-06 14:07:50,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15443 to 15443. [2021-11-06 14:07:50,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15443 states, 15192 states have (on average 1.3896787783043707) internal successors, (21112), 15236 states have internal predecessors, (21112), 202 states have call successors, (202), 8 states have call predecessors, (202), 8 states have return successors, (404), 202 states have call predecessors, (404), 202 states have call successors, (404) [2021-11-06 14:07:50,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15443 states to 15443 states and 21718 transitions. [2021-11-06 14:07:50,659 INFO L78 Accepts]: Start accepts. Automaton has 15443 states and 21718 transitions. Word has length 7 [2021-11-06 14:07:50,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:07:50,659 INFO L470 AbstractCegarLoop]: Abstraction has 15443 states and 21718 transitions. [2021-11-06 14:07:50,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 14:07:50,660 INFO L276 IsEmpty]: Start isEmpty. Operand 15443 states and 21718 transitions. [2021-11-06 14:07:50,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-06 14:07:50,660 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:07:50,661 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 14:07:50,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-06 14:07:50,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 14:07:50,876 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION === [mwl8k_post_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr1ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-06 14:07:50,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:07:50,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1701289332, now seen corresponding path program 1 times [2021-11-06 14:07:50,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 14:07:50,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2122588500] [2021-11-06 14:07:50,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:07:50,880 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 14:07:50,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 14:07:50,885 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 14:07:50,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-06 14:07:55,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:07:55,242 INFO L263 TraceCheckSpWp]: Trace formula consists of 1578 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-06 14:07:55,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 14:07:55,564 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 14:07:55,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 14:07:55,800 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 14:07:55,801 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 14:07:55,801 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2122588500] [2021-11-06 14:07:55,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2122588500] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 14:07:55,801 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:07:55,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-06 14:07:55,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656810213] [2021-11-06 14:07:55,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 14:07:55,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 14:07:55,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 14:07:55,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:07:55,802 INFO L87 Difference]: Start difference. First operand 15443 states and 21718 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 14:07:58,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:07:58,540 INFO L93 Difference]: Finished difference Result 15443 states and 21718 transitions. [2021-11-06 14:07:58,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 14:07:58,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2021-11-06 14:07:58,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:07:58,655 INFO L225 Difference]: With dead ends: 15443 [2021-11-06 14:07:58,656 INFO L226 Difference]: Without dead ends: 15438 [2021-11-06 14:07:58,662 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 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 14:07:58,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15438 states. [2021-11-06 14:07:58,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15438 to 15438. [2021-11-06 14:07:59,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15438 states, 15188 states have (on average 1.389583882012115) internal successors, (21105), 15231 states have internal predecessors, (21105), 202 states have call successors, (202), 8 states have call predecessors, (202), 8 states have return successors, (404), 202 states have call predecessors, (404), 202 states have call successors, (404) [2021-11-06 14:07:59,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15438 states to 15438 states and 21711 transitions. [2021-11-06 14:07:59,060 INFO L78 Accepts]: Start accepts. Automaton has 15438 states and 21711 transitions. Word has length 8 [2021-11-06 14:07:59,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:07:59,061 INFO L470 AbstractCegarLoop]: Abstraction has 15438 states and 21711 transitions. [2021-11-06 14:07:59,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 14:07:59,061 INFO L276 IsEmpty]: Start isEmpty. Operand 15438 states and 21711 transitions. [2021-11-06 14:07:59,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-11-06 14:07:59,069 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:07:59,069 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] [2021-11-06 14:07:59,111 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-06 14:07:59,283 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 14:07:59,283 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [mwl8k_post_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr1ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-06 14:07:59,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:07:59,284 INFO L85 PathProgramCache]: Analyzing trace with hash 825537041, now seen corresponding path program 1 times [2021-11-06 14:07:59,289 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 14:07:59,290 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [77543995] [2021-11-06 14:07:59,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:07:59,290 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 14:07:59,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 14:07:59,291 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 14:07:59,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-06 14:08:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:08:03,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 1683 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-06 14:08:03,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 14:08:04,122 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 14:08:04,122 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 14:08:04,589 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 14:08:04,589 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 14:08:04,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [77543995] [2021-11-06 14:08:04,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [77543995] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 14:08:04,589 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:08:04,589 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-06 14:08:04,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080013830] [2021-11-06 14:08:04,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 14:08:04,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 14:08:04,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 14:08:04,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 14:08:04,591 INFO L87 Difference]: Start difference. First operand 15438 states and 21711 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 14:08:11,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:08:11,820 INFO L93 Difference]: Finished difference Result 30922 states and 43468 transitions. [2021-11-06 14:08:11,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 14:08:11,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 36 [2021-11-06 14:08:11,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:08:11,867 INFO L225 Difference]: With dead ends: 30922 [2021-11-06 14:08:11,868 INFO L226 Difference]: Without dead ends: 15486 [2021-11-06 14:08:11,932 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 69 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 14:08:11,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15486 states. [2021-11-06 14:08:12,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15486 to 15438. [2021-11-06 14:08:12,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15438 states, 15188 states have (on average 1.3801027126678957) internal successors, (20961), 15231 states have internal predecessors, (20961), 202 states have call successors, (202), 8 states have call predecessors, (202), 8 states have return successors, (404), 202 states have call predecessors, (404), 202 states have call successors, (404) [2021-11-06 14:08:12,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15438 states to 15438 states and 21567 transitions. [2021-11-06 14:08:12,454 INFO L78 Accepts]: Start accepts. Automaton has 15438 states and 21567 transitions. Word has length 36 [2021-11-06 14:08:12,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:08:12,455 INFO L470 AbstractCegarLoop]: Abstraction has 15438 states and 21567 transitions. [2021-11-06 14:08:12,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 14:08:12,455 INFO L276 IsEmpty]: Start isEmpty. Operand 15438 states and 21567 transitions. [2021-11-06 14:08:12,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-06 14:08:12,462 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:08:12,463 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] [2021-11-06 14:08:12,505 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-06 14:08:12,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 14:08:12,686 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [mwl8k_post_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr1ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-06 14:08:12,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:08:12,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1750950292, now seen corresponding path program 1 times [2021-11-06 14:08:12,691 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 14:08:12,691 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [797417373] [2021-11-06 14:08:12,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:08:12,691 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 14:08:12,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 14:08:12,692 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 14:08:12,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-06 14:08:17,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:08:17,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 1689 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-06 14:08:17,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 14:08:17,831 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 14:08:17,831 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 14:08:18,160 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 14:08:18,160 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 14:08:18,160 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [797417373] [2021-11-06 14:08:18,161 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [797417373] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 14:08:18,161 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:08:18,161 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-06 14:08:18,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810285269] [2021-11-06 14:08:18,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 14:08:18,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 14:08:18,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 14:08:18,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 14:08:18,162 INFO L87 Difference]: Start difference. First operand 15438 states and 21567 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 14:08:30,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:08:30,753 INFO L93 Difference]: Finished difference Result 125800 states and 174587 transitions. [2021-11-06 14:08:30,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-06 14:08:30,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 39 [2021-11-06 14:08:30,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:08:31,217 INFO L225 Difference]: With dead ends: 125800 [2021-11-06 14:08:31,218 INFO L226 Difference]: Without dead ends: 110364 [2021-11-06 14:08:31,288 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-06 14:08:31,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110364 states. [2021-11-06 14:08:32,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110364 to 15456. [2021-11-06 14:08:32,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15456 states, 15206 states have (on average 1.3796527686439564) internal successors, (20979), 15249 states have internal predecessors, (20979), 202 states have call successors, (202), 8 states have call predecessors, (202), 8 states have return successors, (404), 202 states have call predecessors, (404), 202 states have call successors, (404) [2021-11-06 14:08:32,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15456 states to 15456 states and 21585 transitions. [2021-11-06 14:08:32,592 INFO L78 Accepts]: Start accepts. Automaton has 15456 states and 21585 transitions. Word has length 39 [2021-11-06 14:08:32,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:08:32,592 INFO L470 AbstractCegarLoop]: Abstraction has 15456 states and 21585 transitions. [2021-11-06 14:08:32,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 14:08:32,593 INFO L276 IsEmpty]: Start isEmpty. Operand 15456 states and 21585 transitions. [2021-11-06 14:08:32,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-06 14:08:32,597 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:08:32,597 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] [2021-11-06 14:08:32,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-06 14:08:32,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 14:08:32,823 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION === [mwl8k_post_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr1ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-06 14:08:32,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:08:32,823 INFO L85 PathProgramCache]: Analyzing trace with hash 504688916, now seen corresponding path program 1 times [2021-11-06 14:08:32,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 14:08:32,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [609307617] [2021-11-06 14:08:32,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:08:32,829 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 14:08:32,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 14:08:32,830 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 14:08:32,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-06 14:08:36,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:08:37,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 1689 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-06 14:08:37,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 14:08:37,775 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 14:08:37,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 14:08:38,100 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 14:08:38,100 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 14:08:38,100 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [609307617] [2021-11-06 14:08:38,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [609307617] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 14:08:38,101 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:08:38,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-06 14:08:38,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491475909] [2021-11-06 14:08:38,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 14:08:38,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 14:08:38,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 14:08:38,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 14:08:38,103 INFO L87 Difference]: Start difference. First operand 15456 states and 21585 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 14:08:51,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:08:51,917 INFO L93 Difference]: Finished difference Result 126474 states and 175425 transitions. [2021-11-06 14:08:51,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-06 14:08:51,918 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 39 [2021-11-06 14:08:51,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:08:52,319 INFO L225 Difference]: With dead ends: 126474 [2021-11-06 14:08:52,319 INFO L226 Difference]: Without dead ends: 111020 [2021-11-06 14:08:52,387 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-06 14:08:52,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111020 states. [2021-11-06 14:08:53,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111020 to 15468. [2021-11-06 14:08:53,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15468 states, 15218 states have (on average 1.3793533972926797) internal successors, (20991), 15261 states have internal predecessors, (20991), 202 states have call successors, (202), 8 states have call predecessors, (202), 8 states have return successors, (404), 202 states have call predecessors, (404), 202 states have call successors, (404) [2021-11-06 14:08:53,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15468 states to 15468 states and 21597 transitions. [2021-11-06 14:08:53,811 INFO L78 Accepts]: Start accepts. Automaton has 15468 states and 21597 transitions. Word has length 39 [2021-11-06 14:08:53,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:08:53,811 INFO L470 AbstractCegarLoop]: Abstraction has 15468 states and 21597 transitions. [2021-11-06 14:08:53,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 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 14:08:53,811 INFO L276 IsEmpty]: Start isEmpty. Operand 15468 states and 21597 transitions. [2021-11-06 14:08:53,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-06 14:08:53,815 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:08:53,815 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 14:08:53,856 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-06 14:08:54,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 14:08:54,030 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION === [mwl8k_post_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr1ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-06 14:08:54,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:08:54,030 INFO L85 PathProgramCache]: Analyzing trace with hash -31052317, now seen corresponding path program 1 times [2021-11-06 14:08:54,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 14:08:54,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [441918662] [2021-11-06 14:08:54,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:08:54,034 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 14:08:54,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 14:08:54,035 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 14:08:54,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-06 14:08:58,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 14:08:58,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 1801 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-06 14:08:58,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 14:08:59,021 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 14:08:59,022 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-06 14:08:59,220 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 14:08:59,220 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-06 14:08:59,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [441918662] [2021-11-06 14:08:59,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [441918662] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-06 14:08:59,220 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-06 14:08:59,220 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-06 14:08:59,220 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011285172] [2021-11-06 14:08:59,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 14:08:59,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-06 14:08:59,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 14:08:59,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 14:08:59,222 INFO L87 Difference]: Start difference. First operand 15468 states and 21597 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:09:05,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 14:09:05,735 INFO L93 Difference]: Finished difference Result 71900 states and 100201 transitions. [2021-11-06 14:09:05,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 14:09:05,736 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2021-11-06 14:09:05,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 14:09:05,929 INFO L225 Difference]: With dead ends: 71900 [2021-11-06 14:09:05,929 INFO L226 Difference]: Without dead ends: 56434 [2021-11-06 14:09:05,990 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 14:09:06,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56434 states. [2021-11-06 14:09:07,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56434 to 15492. [2021-11-06 14:09:07,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15492 states, 15242 states have (on average 1.378756068757381) internal successors, (21015), 15285 states have internal predecessors, (21015), 202 states have call successors, (202), 8 states have call predecessors, (202), 8 states have return successors, (404), 202 states have call predecessors, (404), 202 states have call successors, (404) [2021-11-06 14:09:07,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15492 states to 15492 states and 21621 transitions. [2021-11-06 14:09:07,169 INFO L78 Accepts]: Start accepts. Automaton has 15492 states and 21621 transitions. Word has length 42 [2021-11-06 14:09:07,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 14:09:07,169 INFO L470 AbstractCegarLoop]: Abstraction has 15492 states and 21621 transitions. [2021-11-06 14:09:07,169 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 14:09:07,169 INFO L276 IsEmpty]: Start isEmpty. Operand 15492 states and 21621 transitions. [2021-11-06 14:09:07,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-06 14:09:07,172 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 14:09:07,173 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 14:09:07,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-06 14:09:07,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-06 14:09:07,383 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION === [mwl8k_post_cmdErr0ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr1ASSERT_VIOLATIONERROR_FUNCTION, mwl8k_post_cmdErr2ASSERT_VIOLATIONERROR_FUNCTION (and 39 more)] === [2021-11-06 14:09:07,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 14:09:07,384 INFO L85 PathProgramCache]: Analyzing trace with hash 514761064, now seen corresponding path program 1 times [2021-11-06 14:09:07,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-06 14:09:07,387 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [852398083] [2021-11-06 14:09:07,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 14:09:07,388 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-06 14:09:07,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-06 14:09:07,389 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-06 14:09:07,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process Killed by 15