./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-rndis_wlan.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 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-rndis_wlan.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 ed68d02e3340e974ceb85a32805324d7a9365cc739c1b33e4c9dbafc7a73800a --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 22:06:52,835 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 22:06:52,837 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 22:06:52,862 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 22:06:52,862 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 22:06:52,865 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 22:06:52,866 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 22:06:52,870 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 22:06:52,871 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 22:06:52,874 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 22:06:52,875 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 22:06:52,878 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 22:06:52,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 22:06:52,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 22:06:52,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 22:06:52,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 22:06:52,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 22:06:52,884 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 22:06:52,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 22:06:52,887 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 22:06:52,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 22:06:52,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 22:06:52,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 22:06:52,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 22:06:52,896 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 22:06:52,898 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 22:06:52,898 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 22:06:52,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 22:06:52,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 22:06:52,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 22:06:52,905 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 22:06:52,906 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 22:06:52,906 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 22:06:52,907 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 22:06:52,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 22:06:52,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 22:06:52,908 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 22:06:52,909 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 22:06:52,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 22:06:52,909 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 22:06:52,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 22:06:52,911 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 22:06:52,937 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 22:06:52,937 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 22:06:52,938 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 22:06:52,938 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 22:06:52,939 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 22:06:52,940 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 22:06:52,940 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 22:06:52,940 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 22:06:52,940 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 22:06:52,940 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 22:06:52,941 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 22:06:52,941 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 22:06:52,941 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 22:06:52,941 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 22:06:52,942 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 22:06:52,942 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 22:06:52,942 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 22:06:52,942 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 22:06:52,942 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 22:06:52,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 22:06:52,942 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 22:06:52,943 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 22:06:52,943 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 22:06:52,943 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 22:06:52,943 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 22:06:52,943 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 22:06:52,943 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 22:06:52,943 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 22:06:52,944 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 22:06:52,944 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ed68d02e3340e974ceb85a32805324d7a9365cc739c1b33e4c9dbafc7a73800a [2021-11-05 22:06:53,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 22:06:53,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 22:06:53,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 22:06:53,214 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 22:06:53,214 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 22:06:53,215 INFO L432 ainManager$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-rndis_wlan.cil.i [2021-11-05 22:06:53,272 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/945c1440f/c21b98ed71db4375b1711b15be99e4a0/FLAG811b4af86 [2021-11-05 22:06:53,979 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 22:06:53,979 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-rndis_wlan.cil.i [2021-11-05 22:06:54,029 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/945c1440f/c21b98ed71db4375b1711b15be99e4a0/FLAG811b4af86 [2021-11-05 22:06:54,531 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/945c1440f/c21b98ed71db4375b1711b15be99e4a0 [2021-11-05 22:06:54,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 22:06:54,534 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 22:06:54,536 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 22:06:54,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 22:06:54,545 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 22:06:54,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 10:06:54" (1/1) ... [2021-11-05 22:06:54,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44a69d0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:06:54, skipping insertion in model container [2021-11-05 22:06:54,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 10:06:54" (1/1) ... [2021-11-05 22:06:54,550 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 22:06:54,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 22:06:56,916 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-rndis_wlan.cil.i[491185,491198] [2021-11-05 22:06:56,918 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-rndis_wlan.cil.i[491330,491343] [2021-11-05 22:06:56,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 22:06:56,973 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 22:06:57,337 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-rndis_wlan.cil.i[491185,491198] [2021-11-05 22:06:57,338 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-rndis_wlan.cil.i[491330,491343] [2021-11-05 22:06:57,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 22:06:57,605 INFO L208 MainTranslator]: Completed translation [2021-11-05 22:06:57,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:06:57 WrapperNode [2021-11-05 22:06:57,606 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 22:06:57,607 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 22:06:57,622 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 22:06:57,622 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 22:06:57,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:06:57" (1/1) ... [2021-11-05 22:06:57,727 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:06:57" (1/1) ... [2021-11-05 22:07:00,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 22:07:00,443 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 22:07:00,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 22:07:00,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 22:07:00,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:06:57" (1/1) ... [2021-11-05 22:07:00,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:06:57" (1/1) ... [2021-11-05 22:07:01,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:06:57" (1/1) ... [2021-11-05 22:07:01,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:06:57" (1/1) ... [2021-11-05 22:07:02,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:06:57" (1/1) ... [2021-11-05 22:07:03,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:06:57" (1/1) ... [2021-11-05 22:07:03,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:06:57" (1/1) ... [2021-11-05 22:07:04,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 22:07:04,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 22:07:04,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 22:07:04,129 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 22:07:04,130 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:06:57" (1/1) ... [2021-11-05 22:07:04,134 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 22:07:04,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 22:07:04,150 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) [2021-11-05 22:07:04,163 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 [2021-11-05 22:07:04,173 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 22:07:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-05 22:07:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-05 22:07:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 22:07:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 22:07:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 22:07:04,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 22:07:04,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 22:07:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-05 22:07:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-05 22:07:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 22:07:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 22:07:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 22:07:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 22:07:04,175 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-05 22:07:04,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 22:16:24,920 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-05 22:16:24,921 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-05 22:16:24,921 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-05 22:16:24,921 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#5: ldv_switch_2_#res := 0; [2021-11-05 22:16:24,921 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#6: ldv_switch_2_#res := 0; [2021-11-05 22:16:24,921 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-05 22:16:24,922 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2021-11-05 22:16:24,924 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-05 22:16:24,925 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-05 22:16:24,926 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-05 22:16:24,932 INFO L757 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-05 22:16:24,991 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 22:16:24,992 INFO L299 CfgBuilder]: Removed 19028 assume(true) statements. [2021-11-05 22:16:25,014 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 10:16:25 BoogieIcfgContainer [2021-11-05 22:16:25,014 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 22:16:25,015 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 22:16:25,015 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 22:16:25,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 22:16:25,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 10:06:54" (1/3) ... [2021-11-05 22:16:25,018 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cc7a03f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 10:16:25, skipping insertion in model container [2021-11-05 22:16:25,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 10:06:57" (2/3) ... [2021-11-05 22:16:25,019 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cc7a03f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 10:16:25, skipping insertion in model container [2021-11-05 22:16:25,019 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 10:16:25" (3/3) ... [2021-11-05 22:16:25,020 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-wireless-rndis_wlan.cil.i [2021-11-05 22:16:25,023 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 22:16:25,024 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 317 error locations. [2021-11-05 22:16:25,118 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 22:16:25,123 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 [2021-11-05 22:16:25,124 INFO L340 AbstractCegarLoop]: Starting to check reachability of 317 error locations. [2021-11-05 22:16:25,377 INFO L276 IsEmpty]: Start isEmpty. Operand has 27174 states, 26857 states have (on average 1.504635662955654) internal successors, (40410), 27173 states have internal predecessors, (40410), 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) [2021-11-05 22:16:25,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2021-11-05 22:16:25,396 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:16:25,396 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 22:16:25,397 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr109ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 314 more)] === [2021-11-05 22:16:25,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:16:25,401 INFO L85 PathProgramCache]: Analyzing trace with hash -164169739, now seen corresponding path program 1 times [2021-11-05 22:16:25,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:16:25,406 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934291313] [2021-11-05 22:16:25,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:16:25,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:16:26,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:16:26,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:16:26,544 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:16:26,544 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934291313] [2021-11-05 22:16:26,545 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934291313] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:16:26,545 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:16:26,545 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:16:26,546 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851934179] [2021-11-05 22:16:26,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:16:26,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 22:16:26,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:16:26,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 22:16:26,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:16:26,608 INFO L87 Difference]: Start difference. First operand has 27174 states, 26857 states have (on average 1.504635662955654) internal successors, (40410), 27173 states have internal predecessors, (40410), 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) Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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) [2021-11-05 22:16:28,798 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 22:16:30,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:16:30,406 INFO L93 Difference]: Finished difference Result 77110 states and 114812 transitions. [2021-11-05 22:16:30,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 22:16:30,410 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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 136 [2021-11-05 22:16:30,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:16:30,616 INFO L225 Difference]: With dead ends: 77110 [2021-11-05 22:16:30,616 INFO L226 Difference]: Without dead ends: 48680 [2021-11-05 22:16:30,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.54ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:16:30,685 INFO L933 BasicCegarLoop]: 40048 mSDtfsCounter, 34142 mSDsluCounter, 40000 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2659.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34142 SdHoareTripleChecker+Valid, 80048 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 109.14ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2766.19ms IncrementalHoareTripleChecker+Time [2021-11-05 22:16:30,686 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34142 Valid, 80048 Invalid, 78 Unknown, 0 Unchecked, 109.14ms Time], IncrementalHoareTripleChecker [13 Valid, 64 Invalid, 1 Unknown, 0 Unchecked, 2766.19ms Time] [2021-11-05 22:16:30,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48680 states. [2021-11-05 22:16:31,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48680 to 48124. [2021-11-05 22:16:31,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48124 states, 47807 states have (on average 1.4805781580103332) internal successors, (70782), 48123 states have internal predecessors, (70782), 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) [2021-11-05 22:16:32,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48124 states to 48124 states and 70782 transitions. [2021-11-05 22:16:32,348 INFO L78 Accepts]: Start accepts. Automaton has 48124 states and 70782 transitions. Word has length 136 [2021-11-05 22:16:32,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:16:32,349 INFO L470 AbstractCegarLoop]: Abstraction has 48124 states and 70782 transitions. [2021-11-05 22:16:32,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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) [2021-11-05 22:16:32,350 INFO L276 IsEmpty]: Start isEmpty. Operand 48124 states and 70782 transitions. [2021-11-05 22:16:32,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-11-05 22:16:32,352 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:16:32,353 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 22:16:32,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 22:16:32,353 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr151ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 314 more)] === [2021-11-05 22:16:32,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:16:32,354 INFO L85 PathProgramCache]: Analyzing trace with hash 449386549, now seen corresponding path program 1 times [2021-11-05 22:16:32,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:16:32,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680019011] [2021-11-05 22:16:32,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:16:32,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:16:32,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:16:32,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:16:32,972 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:16:32,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680019011] [2021-11-05 22:16:32,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680019011] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:16:32,972 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:16:32,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:16:32,973 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696969136] [2021-11-05 22:16:32,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:16:32,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 22:16:32,974 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:16:32,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 22:16:32,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:16:32,974 INFO L87 Difference]: Start difference. First operand 48124 states and 70782 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2021-11-05 22:16:35,145 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 22:16:37,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:16:37,172 INFO L93 Difference]: Finished difference Result 135114 states and 198904 transitions. [2021-11-05 22:16:37,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 22:16:37,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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 137 [2021-11-05 22:16:37,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:16:37,449 INFO L225 Difference]: With dead ends: 135114 [2021-11-05 22:16:37,449 INFO L226 Difference]: Without dead ends: 87282 [2021-11-05 22:16:37,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.71ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:16:37,542 INFO L933 BasicCegarLoop]: 43524 mSDtfsCounter, 31541 mSDsluCounter, 38252 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2715.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 31541 SdHoareTripleChecker+Valid, 81776 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 69.90ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2876.66ms IncrementalHoareTripleChecker+Time [2021-11-05 22:16:37,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31541 Valid, 81776 Invalid, 78 Unknown, 0 Unchecked, 69.90ms Time], IncrementalHoareTripleChecker [13 Valid, 64 Invalid, 1 Unknown, 0 Unchecked, 2876.66ms Time] [2021-11-05 22:16:37,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87282 states. [2021-11-05 22:16:39,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87282 to 86752. [2021-11-05 22:16:39,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86752 states, 86435 states have (on average 1.4827442586915023) internal successors, (128161), 86751 states have internal predecessors, (128161), 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) [2021-11-05 22:16:39,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86752 states to 86752 states and 128161 transitions. [2021-11-05 22:16:39,531 INFO L78 Accepts]: Start accepts. Automaton has 86752 states and 128161 transitions. Word has length 137 [2021-11-05 22:16:39,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 22:16:39,531 INFO L470 AbstractCegarLoop]: Abstraction has 86752 states and 128161 transitions. [2021-11-05 22:16:39,531 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2021-11-05 22:16:39,532 INFO L276 IsEmpty]: Start isEmpty. Operand 86752 states and 128161 transitions. [2021-11-05 22:16:39,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-11-05 22:16:39,534 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 22:16:39,535 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 22:16:39,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 22:16:39,535 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr207ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 314 more)] === [2021-11-05 22:16:39,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 22:16:39,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1990703002, now seen corresponding path program 1 times [2021-11-05 22:16:39,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 22:16:39,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794698245] [2021-11-05 22:16:39,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 22:16:39,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 22:16:39,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 22:16:40,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 22:16:40,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 22:16:40,330 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794698245] [2021-11-05 22:16:40,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794698245] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 22:16:40,331 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 22:16:40,331 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 22:16:40,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575516162] [2021-11-05 22:16:40,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 22:16:40,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 22:16:40,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 22:16:40,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 22:16:40,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:16:40,332 INFO L87 Difference]: Start difference. First operand 86752 states and 128161 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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) [2021-11-05 22:16:42,517 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 22:16:45,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 22:16:45,193 INFO L93 Difference]: Finished difference Result 245626 states and 363091 transitions. [2021-11-05 22:16:45,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 22:16:45,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 138 [2021-11-05 22:16:45,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 22:16:45,597 INFO L225 Difference]: With dead ends: 245626 [2021-11-05 22:16:45,598 INFO L226 Difference]: Without dead ends: 159166 [2021-11-05 22:16:45,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.93ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 22:16:45,741 INFO L933 BasicCegarLoop]: 49953 mSDtfsCounter, 32745 mSDsluCounter, 38253 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2645.25ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 32745 SdHoareTripleChecker+Valid, 88206 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 54.40ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2737.25ms IncrementalHoareTripleChecker+Time [2021-11-05 22:16:45,742 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32745 Valid, 88206 Invalid, 78 Unknown, 0 Unchecked, 54.40ms Time], IncrementalHoareTripleChecker [13 Valid, 64 Invalid, 1 Unknown, 0 Unchecked, 2737.25ms Time]