./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.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 9e0fc576d8a50911d793e48f3029c6fea512a91c8b7de6b4c98b61b2fe16dd8a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 20:19:49,720 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 20:19:49,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 20:19:49,751 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 20:19:49,752 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 20:19:49,755 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 20:19:49,756 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 20:19:49,760 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 20:19:49,762 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 20:19:49,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 20:19:49,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 20:19:49,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 20:19:49,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 20:19:49,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 20:19:49,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 20:19:49,774 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 20:19:49,776 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 20:19:49,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 20:19:49,778 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 20:19:49,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 20:19:49,783 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 20:19:49,783 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 20:19:49,784 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 20:19:49,785 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 20:19:49,787 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 20:19:49,788 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 20:19:49,788 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 20:19:49,789 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 20:19:49,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 20:19:49,790 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 20:19:49,791 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 20:19:49,791 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 20:19:49,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 20:19:49,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 20:19:49,794 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 20:19:49,794 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 20:19:49,795 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 20:19:49,795 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 20:19:49,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 20:19:49,795 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 20:19:49,796 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 20:19:49,797 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 20:19:49,818 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 20:19:49,820 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 20:19:49,821 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 20:19:49,821 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 20:19:49,822 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 20:19:49,822 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 20:19:49,822 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 20:19:49,822 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 20:19:49,823 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 20:19:49,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 20:19:49,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 20:19:49,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 20:19:49,824 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 20:19:49,824 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 20:19:49,824 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 20:19:49,824 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 20:19:49,824 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 20:19:49,824 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 20:19:49,824 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 20:19:49,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 20:19:49,825 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 20:19:49,825 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 20:19:49,825 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 20:19:49,825 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 20:19:49,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 20:19:49,825 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 20:19:49,825 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 20:19:49,826 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 20:19:49,826 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 20:19:49,827 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e0fc576d8a50911d793e48f3029c6fea512a91c8b7de6b4c98b61b2fe16dd8a [2021-11-06 20:19:50,018 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 20:19:50,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 20:19:50,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 20:19:50,039 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 20:19:50,040 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 20:19:50,040 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-06 20:19:50,125 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d16c9aa8/7f39081beb6c475aadcd8193bda70944/FLAG32fc7acf7 [2021-11-06 20:19:50,758 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 20:19:50,759 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-06 20:19:50,807 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d16c9aa8/7f39081beb6c475aadcd8193bda70944/FLAG32fc7acf7 [2021-11-06 20:19:51,115 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d16c9aa8/7f39081beb6c475aadcd8193bda70944 [2021-11-06 20:19:51,117 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 20:19:51,118 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 20:19:51,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 20:19:51,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 20:19:51,124 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 20:19:51,125 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:19:51" (1/1) ... [2021-11-06 20:19:51,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27337b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:19:51, skipping insertion in model container [2021-11-06 20:19:51,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:19:51" (1/1) ... [2021-11-06 20:19:51,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 20:19:51,225 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 20:19:53,829 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[460294,460307] [2021-11-06 20:19:53,831 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[460439,460452] [2021-11-06 20:19:53,852 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 20:19:53,881 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 20:19:54,139 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[460294,460307] [2021-11-06 20:19:54,139 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-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i[460439,460452] [2021-11-06 20:19:54,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 20:19:54,257 INFO L208 MainTranslator]: Completed translation [2021-11-06 20:19:54,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:19:54 WrapperNode [2021-11-06 20:19:54,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 20:19:54,258 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 20:19:54,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 20:19:54,259 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 20:19:54,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:19:54" (1/1) ... [2021-11-06 20:19:54,344 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:19:54" (1/1) ... [2021-11-06 20:19:56,722 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 20:19:56,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 20:19:56,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 20:19:56,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 20:19:56,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:19:54" (1/1) ... [2021-11-06 20:19:56,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:19:54" (1/1) ... [2021-11-06 20:19:57,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:19:54" (1/1) ... [2021-11-06 20:19:57,247 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:19:54" (1/1) ... [2021-11-06 20:19:58,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:19:54" (1/1) ... [2021-11-06 20:19:58,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:19:54" (1/1) ... [2021-11-06 20:19:58,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:19:54" (1/1) ... [2021-11-06 20:19:59,502 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 20:19:59,504 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 20:19:59,504 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 20:19:59,504 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 20:19:59,505 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:19:54" (1/1) ... [2021-11-06 20:19:59,510 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 20:19:59,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 20:19:59,528 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 20:19:59,546 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 20:19:59,560 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 20:19:59,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 20:19:59,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 20:19:59,562 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 20:19:59,562 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 20:19:59,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 20:19:59,562 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 20:19:59,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 20:19:59,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 20:19:59,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 20:19:59,563 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 20:19:59,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 20:19:59,563 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8180_stop [2021-11-06 20:19:59,563 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8180_stop [2021-11-06 20:19:59,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 20:19:59,564 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 20:19:59,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 20:19:59,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 20:19:59,564 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-06 20:19:59,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 20:20:34,635 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-06 20:20:34,635 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-06 20:20:34,636 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-06 20:20:34,636 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2021-11-06 20:20:34,636 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#4: ldv_switch_0_#res := 0; [2021-11-06 20:20:34,636 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#5: ldv_switch_0_#res := 0; [2021-11-06 20:20:34,636 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#6: ldv_switch_0_#res := 0; [2021-11-06 20:20:34,636 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-06 20:20:34,636 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#7: ldv_switch_0_#res := 0; [2021-11-06 20:20:34,636 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#8: ldv_switch_0_#res := 0; [2021-11-06 20:20:34,636 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#9: ldv_switch_0_#res := 0; [2021-11-06 20:20:34,637 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#11: ldv_switch_0_#res := 0; [2021-11-06 20:20:34,637 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#10: ldv_switch_0_#res := 0; [2021-11-06 20:20:34,637 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#12: ldv_switch_0_#res := 0; [2021-11-06 20:20:34,638 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 20:20:34,641 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 20:20:34,687 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 20:20:34,688 INFO L299 CfgBuilder]: Removed 30375 assume(true) statements. [2021-11-06 20:20:34,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:20:34 BoogieIcfgContainer [2021-11-06 20:20:34,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 20:20:34,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 20:20:34,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 20:20:34,705 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 20:20:34,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:19:51" (1/3) ... [2021-11-06 20:20:34,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48544e5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:20:34, skipping insertion in model container [2021-11-06 20:20:34,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:19:54" (2/3) ... [2021-11-06 20:20:34,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48544e5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:20:34, skipping insertion in model container [2021-11-06 20:20:34,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:20:34" (3/3) ... [2021-11-06 20:20:34,708 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rtl818x-rtl8180-rtl8180.cil.i [2021-11-06 20:20:34,711 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 20:20:34,712 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-11-06 20:20:34,776 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 20:20:34,780 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 20:20:34,780 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-11-06 20:20:34,933 INFO L276 IsEmpty]: Start isEmpty. Operand has 17179 states, 17154 states have (on average 1.2209397225136995) internal successors, (20944), 17164 states have internal predecessors, (20944), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-11-06 20:20:34,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-06 20:20:34,962 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:20:34,963 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:20:34,964 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-06 20:20:34,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:20:34,969 INFO L85 PathProgramCache]: Analyzing trace with hash 2106735998, now seen corresponding path program 1 times [2021-11-06 20:20:34,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:20:34,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011148094] [2021-11-06 20:20:34,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:20:34,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:20:35,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:20:35,695 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 20:20:35,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:20:35,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011148094] [2021-11-06 20:20:35,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011148094] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:20:35,699 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:20:35,699 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:20:35,700 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536439259] [2021-11-06 20:20:35,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:20:35,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:20:35,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:20:35,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:20:35,750 INFO L87 Difference]: Start difference. First operand has 17179 states, 17154 states have (on average 1.2209397225136995) internal successors, (20944), 17164 states have internal predecessors, (20944), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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 20:20:39,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:20:39,569 INFO L93 Difference]: Finished difference Result 47851 states and 58431 transitions. [2021-11-06 20:20:39,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:20:39,571 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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 149 [2021-11-06 20:20:39,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:20:39,753 INFO L225 Difference]: With dead ends: 47851 [2021-11-06 20:20:39,754 INFO L226 Difference]: Without dead ends: 30546 [2021-11-06 20:20:39,863 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 20:20:39,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30546 states. [2021-11-06 20:20:40,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30546 to 30226. [2021-11-06 20:20:40,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30226 states, 30188 states have (on average 1.2070690340532662) internal successors, (36439), 30199 states have internal predecessors, (36439), 24 states have call successors, (24), 4 states have call predecessors, (24), 4 states have return successors, (37), 24 states have call predecessors, (37), 24 states have call successors, (37) [2021-11-06 20:20:40,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30226 states to 30226 states and 36500 transitions. [2021-11-06 20:20:40,884 INFO L78 Accepts]: Start accepts. Automaton has 30226 states and 36500 transitions. Word has length 149 [2021-11-06 20:20:40,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:20:40,887 INFO L470 AbstractCegarLoop]: Abstraction has 30226 states and 36500 transitions. [2021-11-06 20:20:40,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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 20:20:40,888 INFO L276 IsEmpty]: Start isEmpty. Operand 30226 states and 36500 transitions. [2021-11-06 20:20:40,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-06 20:20:40,900 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:20:40,900 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:20:40,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 20:20:40,901 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-06 20:20:40,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:20:40,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1697068218, now seen corresponding path program 1 times [2021-11-06 20:20:40,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:20:40,903 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470241106] [2021-11-06 20:20:40,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:20:40,904 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:20:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:20:41,236 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 20:20:41,236 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:20:41,236 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470241106] [2021-11-06 20:20:41,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470241106] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:20:41,237 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:20:41,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:20:41,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405959737] [2021-11-06 20:20:41,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:20:41,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:20:41,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:20:41,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:20:41,240 INFO L87 Difference]: Start difference. First operand 30226 states and 36500 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 20:20:44,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:20:44,918 INFO L93 Difference]: Finished difference Result 87182 states and 105166 transitions. [2021-11-06 20:20:44,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:20:44,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 150 [2021-11-06 20:20:44,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:20:45,138 INFO L225 Difference]: With dead ends: 87182 [2021-11-06 20:20:45,139 INFO L226 Difference]: Without dead ends: 57248 [2021-11-06 20:20:45,362 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 20:20:45,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57248 states. [2021-11-06 20:20:46,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57248 to 56624. [2021-11-06 20:20:46,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56624 states, 56562 states have (on average 1.2035995898306284) internal successors, (68078), 56575 states have internal predecessors, (68078), 44 states have call successors, (44), 8 states have call predecessors, (44), 8 states have return successors, (92), 44 states have call predecessors, (92), 44 states have call successors, (92) [2021-11-06 20:20:46,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56624 states to 56624 states and 68214 transitions. [2021-11-06 20:20:46,810 INFO L78 Accepts]: Start accepts. Automaton has 56624 states and 68214 transitions. Word has length 150 [2021-11-06 20:20:46,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:20:46,811 INFO L470 AbstractCegarLoop]: Abstraction has 56624 states and 68214 transitions. [2021-11-06 20:20:46,811 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 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 20:20:46,812 INFO L276 IsEmpty]: Start isEmpty. Operand 56624 states and 68214 transitions. [2021-11-06 20:20:46,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-06 20:20:46,817 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:20:46,817 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:20:46,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 20:20:46,817 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-06 20:20:46,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:20:46,818 INFO L85 PathProgramCache]: Analyzing trace with hash 965879122, now seen corresponding path program 1 times [2021-11-06 20:20:46,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:20:46,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485064963] [2021-11-06 20:20:46,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:20:46,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:20:46,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:20:47,065 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 20:20:47,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:20:47,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485064963] [2021-11-06 20:20:47,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485064963] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:20:47,066 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:20:47,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:20:47,067 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75221143] [2021-11-06 20:20:47,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:20:47,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:20:47,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:20:47,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:20:47,068 INFO L87 Difference]: Start difference. First operand 56624 states and 68214 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 20:20:51,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:20:51,302 INFO L93 Difference]: Finished difference Result 155724 states and 187800 transitions. [2021-11-06 20:20:51,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:20:51,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 151 [2021-11-06 20:20:51,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:20:51,751 INFO L225 Difference]: With dead ends: 155724 [2021-11-06 20:20:51,751 INFO L226 Difference]: Without dead ends: 99392 [2021-11-06 20:20:52,005 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 20:20:52,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99392 states. [2021-11-06 20:20:54,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99392 to 98152. [2021-11-06 20:20:54,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98152 states, 98050 states have (on average 1.2042223355430903) internal successors, (118074), 98067 states have internal predecessors, (118074), 76 states have call successors, (76), 16 states have call predecessors, (76), 16 states have return successors, (204), 76 states have call predecessors, (204), 76 states have call successors, (204) [2021-11-06 20:20:54,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98152 states to 98152 states and 118354 transitions. [2021-11-06 20:20:54,648 INFO L78 Accepts]: Start accepts. Automaton has 98152 states and 118354 transitions. Word has length 151 [2021-11-06 20:20:54,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:20:54,649 INFO L470 AbstractCegarLoop]: Abstraction has 98152 states and 118354 transitions. [2021-11-06 20:20:54,652 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 20:20:54,652 INFO L276 IsEmpty]: Start isEmpty. Operand 98152 states and 118354 transitions. [2021-11-06 20:20:54,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-06 20:20:54,656 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:20:54,656 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:20:54,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 20:20:54,657 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-06 20:20:54,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:20:54,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1530764201, now seen corresponding path program 1 times [2021-11-06 20:20:54,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:20:54,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549434815] [2021-11-06 20:20:54,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:20:54,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:20:54,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:20:54,916 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 20:20:54,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:20:54,916 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549434815] [2021-11-06 20:20:54,916 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549434815] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:20:54,917 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:20:54,917 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:20:54,917 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127040733] [2021-11-06 20:20:54,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:20:54,917 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:20:54,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:20:54,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:20:54,918 INFO L87 Difference]: Start difference. First operand 98152 states and 118354 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 20:21:00,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:21:00,984 INFO L93 Difference]: Finished difference Result 290414 states and 349993 transitions. [2021-11-06 20:21:00,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:21:00,984 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 151 [2021-11-06 20:21:00,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:21:01,691 INFO L225 Difference]: With dead ends: 290414 [2021-11-06 20:21:01,692 INFO L226 Difference]: Without dead ends: 192554 [2021-11-06 20:21:02,093 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 20:21:02,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192554 states. [2021-11-06 20:21:06,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192554 to 192272. [2021-11-06 20:21:06,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192272 states, 192086 states have (on average 1.2022219214310257) internal successors, (230930), 192115 states have internal predecessors, (230930), 152 states have call successors, (152), 32 states have call predecessors, (152), 24 states have return successors, (580), 132 states have call predecessors, (580), 152 states have call successors, (580) [2021-11-06 20:21:07,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192272 states to 192272 states and 231662 transitions. [2021-11-06 20:21:07,527 INFO L78 Accepts]: Start accepts. Automaton has 192272 states and 231662 transitions. Word has length 151 [2021-11-06 20:21:07,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:21:07,528 INFO L470 AbstractCegarLoop]: Abstraction has 192272 states and 231662 transitions. [2021-11-06 20:21:07,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 20:21:07,528 INFO L276 IsEmpty]: Start isEmpty. Operand 192272 states and 231662 transitions. [2021-11-06 20:21:07,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2021-11-06 20:21:07,531 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:21:07,531 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 20:21:07,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-06 20:21:07,532 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 7 more)] === [2021-11-06 20:21:07,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:21:07,532 INFO L85 PathProgramCache]: Analyzing trace with hash 313257745, now seen corresponding path program 1 times [2021-11-06 20:21:07,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:21:07,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499512343] [2021-11-06 20:21:07,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:21:07,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:21:07,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:21:07,752 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 20:21:07,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:21:07,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499512343] [2021-11-06 20:21:07,752 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499512343] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:21:07,753 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:21:07,753 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:21:07,753 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379320293] [2021-11-06 20:21:07,753 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:21:07,753 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:21:07,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:21:07,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:21:07,754 INFO L87 Difference]: Start difference. First operand 192272 states and 231662 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 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)