./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--iwlegacy--iwl4965.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--iwlegacy--iwl4965.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 16a1834859d6e79a3ffde73cf1cc64a77737592f9d48684edb7ee0bfc6a01ee8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 17:35:42,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 17:35:42,183 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 17:35:42,234 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 17:35:42,235 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 17:35:42,238 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 17:35:42,239 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 17:35:42,242 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 17:35:42,244 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 17:35:42,248 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 17:35:42,248 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 17:35:42,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 17:35:42,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 17:35:42,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 17:35:42,253 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 17:35:42,256 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 17:35:42,257 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 17:35:42,258 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 17:35:42,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 17:35:42,265 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 17:35:42,266 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 17:35:42,266 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 17:35:42,268 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 17:35:42,268 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 17:35:42,274 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 17:35:42,274 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 17:35:42,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 17:35:42,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 17:35:42,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 17:35:42,277 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 17:35:42,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 17:35:42,278 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 17:35:42,279 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 17:35:42,281 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 17:35:42,282 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 17:35:42,282 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 17:35:42,283 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 17:35:42,283 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 17:35:42,283 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 17:35:42,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 17:35:42,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 17:35:42,285 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 17:35:42,316 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 17:35:42,316 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 17:35:42,317 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 17:35:42,317 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 17:35:42,318 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 17:35:42,318 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 17:35:42,318 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 17:35:42,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 17:35:42,319 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 17:35:42,319 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 17:35:42,319 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 17:35:42,320 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 17:35:42,320 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 17:35:42,320 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 17:35:42,320 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 17:35:42,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 17:35:42,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 17:35:42,321 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 17:35:42,321 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 17:35:42,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 17:35:42,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 17:35:42,321 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 17:35:42,322 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 17:35:42,322 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 17:35:42,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 17:35:42,322 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 17:35:42,322 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 17:35:42,323 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 17:35:42,323 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 17:35:42,323 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 16a1834859d6e79a3ffde73cf1cc64a77737592f9d48684edb7ee0bfc6a01ee8 [2021-11-06 17:35:42,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 17:35:42,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 17:35:42,557 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 17:35:42,558 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 17:35:42,559 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 17:35:42,559 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--iwlegacy--iwl4965.ko-entry_point.cil.out.i [2021-11-06 17:35:42,632 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c30ef977/7348c681c7f04ce2ba796b4ef11c7b18/FLAG1925abaf8 [2021-11-06 17:35:43,636 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 17:35:43,637 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--iwlegacy--iwl4965.ko-entry_point.cil.out.i [2021-11-06 17:35:43,732 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c30ef977/7348c681c7f04ce2ba796b4ef11c7b18/FLAG1925abaf8 [2021-11-06 17:35:44,081 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c30ef977/7348c681c7f04ce2ba796b4ef11c7b18 [2021-11-06 17:35:44,083 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 17:35:44,085 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 17:35:44,087 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 17:35:44,087 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 17:35:44,090 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 17:35:44,091 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 05:35:44" (1/1) ... [2021-11-06 17:35:44,092 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52de1867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:35:44, skipping insertion in model container [2021-11-06 17:35:44,092 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 05:35:44" (1/1) ... [2021-11-06 17:35:44,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 17:35:44,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 17:35:55,339 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--iwlegacy--iwl4965.ko-entry_point.cil.out.i[949222,949235] [2021-11-06 17:35:55,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 17:35:55,645 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 17:35:56,648 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--iwlegacy--iwl4965.ko-entry_point.cil.out.i[949222,949235] [2021-11-06 17:35:56,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 17:35:57,107 INFO L208 MainTranslator]: Completed translation [2021-11-06 17:35:57,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:35:57 WrapperNode [2021-11-06 17:35:57,108 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 17:35:57,110 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 17:35:57,111 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 17:35:57,111 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 17:35:57,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:35:57" (1/1) ... [2021-11-06 17:35:57,370 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:35:57" (1/1) ... [2021-11-06 17:36:00,180 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 17:36:00,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 17:36:00,181 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 17:36:00,182 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 17:36:00,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:35:57" (1/1) ... [2021-11-06 17:36:00,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:35:57" (1/1) ... [2021-11-06 17:36:01,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:35:57" (1/1) ... [2021-11-06 17:36:01,259 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:35:57" (1/1) ... [2021-11-06 17:36:03,150 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:35:57" (1/1) ... [2021-11-06 17:36:03,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:35:57" (1/1) ... [2021-11-06 17:36:04,058 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:35:57" (1/1) ... [2021-11-06 17:36:04,636 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 17:36:04,638 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 17:36:04,639 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 17:36:04,639 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 17:36:04,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:35:57" (1/1) ... [2021-11-06 17:36:04,653 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 17:36:04,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 17:36:04,681 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 17:36:04,701 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 17:36:04,724 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_mac_start [2021-11-06 17:36:04,725 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_mac_start [2021-11-06 17:36:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure il_hdl_spectrum_measurement [2021-11-06 17:36:04,725 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-06 17:36:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2021-11-06 17:36:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_hdl_compressed_ba [2021-11-06 17:36:04,726 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_hdl_compressed_ba [2021-11-06 17:36:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 17:36:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 17:36:04,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 17:36:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 17:36:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_commit_rxon [2021-11-06 17:36:04,727 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_commit_rxon [2021-11-06 17:36:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 17:36:04,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 17:36:04,727 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_bg_init_alive_start [2021-11-06 17:36:04,727 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_bg_init_alive_start [2021-11-06 17:36:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 17:36:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_update_chain_flags [2021-11-06 17:36:04,728 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_update_chain_flags [2021-11-06 17:36:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_post_associate [2021-11-06 17:36:04,728 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_post_associate [2021-11-06 17:36:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 17:36:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 17:36:04,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 17:36:04,729 INFO L130 BoogieDeclarations]: Found specification of procedure il_hdl_error [2021-11-06 17:36:04,729 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_config_ap [2021-11-06 17:36:04,729 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_config_ap [2021-11-06 17:36:04,729 INFO L130 BoogieDeclarations]: Found specification of procedure __il4965_up [2021-11-06 17:36:04,729 INFO L138 BoogieDeclarations]: Found implementation of procedure __il4965_up [2021-11-06 17:36:04,729 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_bg_alive_start [2021-11-06 17:36:04,729 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_bg_alive_start [2021-11-06 17:36:04,730 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_bg_run_time_calib_work [2021-11-06 17:36:04,730 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_bg_run_time_calib_work [2021-11-06 17:36:04,730 INFO L130 BoogieDeclarations]: Found specification of procedure il_hdl_pm_debug_stats [2021-11-06 17:36:04,730 INFO L130 BoogieDeclarations]: Found specification of procedure il_send_rxon_assoc [2021-11-06 17:36:04,730 INFO L138 BoogieDeclarations]: Found implementation of procedure il_send_rxon_assoc [2021-11-06 17:36:04,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 17:36:04,730 INFO L130 BoogieDeclarations]: Found specification of procedure il_hdl_csa [2021-11-06 17:36:04,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 17:36:04,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 17:36:04,731 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 17:36:04,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-06 17:36:04,731 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-06 17:36:04,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-06 17:36:04,732 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_tx_queue_reclaim [2021-11-06 17:36:04,732 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_tx_queue_reclaim [2021-11-06 17:36:04,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 17:36:04,732 INFO L130 BoogieDeclarations]: Found specification of procedure il_hdl_pm_sleep [2021-11-06 17:36:04,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 17:36:04,733 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_alive_start [2021-11-06 17:36:04,733 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_alive_start [2021-11-06 17:36:04,733 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_chain_noise_calibration [2021-11-06 17:36:04,733 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_chain_noise_calibration [2021-11-06 17:36:04,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 17:36:04,733 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-06 17:36:04,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-06 17:36:04,734 INFO L130 BoogieDeclarations]: Found specification of procedure il4965_hdl_tx [2021-11-06 17:36:04,734 INFO L138 BoogieDeclarations]: Found implementation of procedure il4965_hdl_tx [2021-11-06 17:42:58,404 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 17:42:58,405 INFO L299 CfgBuilder]: Removed 19688 assume(true) statements. [2021-11-06 17:42:58,426 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 05:42:58 BoogieIcfgContainer [2021-11-06 17:42:58,426 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 17:42:58,428 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 17:42:58,428 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 17:42:58,431 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 17:42:58,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 05:35:44" (1/3) ... [2021-11-06 17:42:58,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526491f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 05:42:58, skipping insertion in model container [2021-11-06 17:42:58,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 05:35:57" (2/3) ... [2021-11-06 17:42:58,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@526491f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 05:42:58, skipping insertion in model container [2021-11-06 17:42:58,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 05:42:58" (3/3) ... [2021-11-06 17:42:58,437 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wireless--iwlegacy--iwl4965.ko-entry_point.cil.out.i [2021-11-06 17:42:58,441 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 17:42:58,442 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 27 error locations. [2021-11-06 17:42:58,553 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 17:42:58,561 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 17:42:58,561 INFO L340 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2021-11-06 17:42:58,891 INFO L276 IsEmpty]: Start isEmpty. Operand has 24942 states, 24687 states have (on average 1.4685461984040182) internal successors, (36254), 24723 states have internal predecessors, (36254), 209 states have call successors, (209), 18 states have call predecessors, (209), 18 states have return successors, (209), 203 states have call predecessors, (209), 209 states have call successors, (209) [2021-11-06 17:42:58,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-11-06 17:42:58,906 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:42:58,906 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:42:58,907 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [il4965_config_apErr0ASSERT_VIOLATIONERROR_FUNCTION, il4965_config_apErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-06 17:42:58,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:42:58,912 INFO L85 PathProgramCache]: Analyzing trace with hash 633900296, now seen corresponding path program 1 times [2021-11-06 17:42:58,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:42:58,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606473503] [2021-11-06 17:42:58,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:42:58,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:43:00,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:43:00,954 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 17:43:00,957 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:43:00,958 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606473503] [2021-11-06 17:43:00,959 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606473503] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:43:00,959 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:43:00,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 17:43:00,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506970713] [2021-11-06 17:43:00,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 17:43:00,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:43:00,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 17:43:00,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 17:43:01,028 INFO L87 Difference]: Start difference. First operand has 24942 states, 24687 states have (on average 1.4685461984040182) internal successors, (36254), 24723 states have internal predecessors, (36254), 209 states have call successors, (209), 18 states have call predecessors, (209), 18 states have return successors, (209), 203 states have call predecessors, (209), 209 states have call successors, (209) Second operand has 2 states, 2 states have (on average 114.0) internal successors, (228), 2 states have internal predecessors, (228), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:43:02,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:43:02,109 INFO L93 Difference]: Finished difference Result 49880 states and 73548 transitions. [2021-11-06 17:43:02,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 17:43:02,111 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 114.0) internal successors, (228), 2 states have internal predecessors, (228), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 229 [2021-11-06 17:43:02,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:43:02,293 INFO L225 Difference]: With dead ends: 49880 [2021-11-06 17:43:02,294 INFO L226 Difference]: Without dead ends: 24849 [2021-11-06 17:43:02,509 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 17:43:02,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24849 states. [2021-11-06 17:43:03,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24849 to 24849. [2021-11-06 17:43:03,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24849 states, 24595 states have (on average 1.4589144134986787) internal successors, (35882), 24630 states have internal predecessors, (35882), 209 states have call successors, (209), 18 states have call predecessors, (209), 18 states have return successors, (209), 203 states have call predecessors, (209), 209 states have call successors, (209) [2021-11-06 17:43:03,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24849 states to 24849 states and 36300 transitions. [2021-11-06 17:43:03,552 INFO L78 Accepts]: Start accepts. Automaton has 24849 states and 36300 transitions. Word has length 229 [2021-11-06 17:43:03,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:43:03,553 INFO L470 AbstractCegarLoop]: Abstraction has 24849 states and 36300 transitions. [2021-11-06 17:43:03,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 114.0) internal successors, (228), 2 states have internal predecessors, (228), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:43:03,554 INFO L276 IsEmpty]: Start isEmpty. Operand 24849 states and 36300 transitions. [2021-11-06 17:43:03,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-11-06 17:43:03,562 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:43:03,564 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 17:43:03,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 17:43:03,567 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ##fun~$Pointer$~TO~intErr0ASSERT_VIOLATIONERROR_FUNCTION === [il4965_config_apErr0ASSERT_VIOLATIONERROR_FUNCTION, il4965_config_apErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-06 17:43:03,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:43:03,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1807307844, now seen corresponding path program 1 times [2021-11-06 17:43:03,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:43:03,570 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581319687] [2021-11-06 17:43:03,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:43:03,571 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:43:04,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:43:05,951 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 17:43:05,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:43:05,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581319687] [2021-11-06 17:43:05,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581319687] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:43:05,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:43:05,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 17:43:05,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849284563] [2021-11-06 17:43:05,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 17:43:05,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:43:05,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 17:43:05,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 17:43:05,957 INFO L87 Difference]: Start difference. First operand 24849 states and 36300 transitions. Second operand has 3 states, 3 states have (on average 76.0) internal successors, (228), 2 states have internal predecessors, (228), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:43:07,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:43:07,394 INFO L93 Difference]: Finished difference Result 26766 states and 39237 transitions. [2021-11-06 17:43:07,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 17:43:07,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 2 states have internal predecessors, (228), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 229 [2021-11-06 17:43:07,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:43:07,552 INFO L225 Difference]: With dead ends: 26766 [2021-11-06 17:43:07,552 INFO L226 Difference]: Without dead ends: 26712 [2021-11-06 17:43:07,578 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 17:43:07,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26712 states. [2021-11-06 17:43:08,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26712 to 26356. [2021-11-06 17:43:08,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26356 states, 26122 states have (on average 1.4633259321644592) internal successors, (38225), 26133 states have internal predecessors, (38225), 212 states have call successors, (212), 21 states have call predecessors, (212), 21 states have return successors, (215), 205 states have call predecessors, (215), 212 states have call successors, (215) [2021-11-06 17:43:08,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26356 states to 26356 states and 38652 transitions. [2021-11-06 17:43:08,498 INFO L78 Accepts]: Start accepts. Automaton has 26356 states and 38652 transitions. Word has length 229 [2021-11-06 17:43:08,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:43:08,502 INFO L470 AbstractCegarLoop]: Abstraction has 26356 states and 38652 transitions. [2021-11-06 17:43:08,502 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.0) internal successors, (228), 2 states have internal predecessors, (228), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:43:08,502 INFO L276 IsEmpty]: Start isEmpty. Operand 26356 states and 38652 transitions. [2021-11-06 17:43:08,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2021-11-06 17:43:08,686 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:43:08,687 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:43:08,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 17:43:08,687 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [il4965_config_apErr0ASSERT_VIOLATIONERROR_FUNCTION, il4965_config_apErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-06 17:43:08,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:43:08,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1487247833, now seen corresponding path program 1 times [2021-11-06 17:43:08,688 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:43:08,689 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431466971] [2021-11-06 17:43:08,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:43:08,689 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:43:10,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:43:10,924 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-06 17:43:10,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:43:10,925 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431466971] [2021-11-06 17:43:10,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431466971] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:43:10,925 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:43:10,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 17:43:10,926 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981973751] [2021-11-06 17:43:10,926 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 17:43:10,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:43:10,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 17:43:10,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 17:43:10,928 INFO L87 Difference]: Start difference. First operand 26356 states and 38652 transitions. Second operand has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 2 states have call successors, (6), 2 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:43:11,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 17:43:11,759 INFO L93 Difference]: Finished difference Result 52513 states and 77126 transitions. [2021-11-06 17:43:11,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 17:43:11,760 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 2 states have call successors, (6), 2 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 420 [2021-11-06 17:43:11,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 17:43:11,905 INFO L225 Difference]: With dead ends: 52513 [2021-11-06 17:43:11,905 INFO L226 Difference]: Without dead ends: 26368 [2021-11-06 17:43:12,152 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 17:43:12,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26368 states. [2021-11-06 17:43:12,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26368 to 26358. [2021-11-06 17:43:12,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26358 states, 26124 states have (on average 1.4632904608788853) internal successors, (38227), 26135 states have internal predecessors, (38227), 212 states have call successors, (212), 21 states have call predecessors, (212), 21 states have return successors, (215), 205 states have call predecessors, (215), 212 states have call successors, (215) [2021-11-06 17:43:12,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26358 states to 26358 states and 38654 transitions. [2021-11-06 17:43:12,798 INFO L78 Accepts]: Start accepts. Automaton has 26358 states and 38654 transitions. Word has length 420 [2021-11-06 17:43:12,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 17:43:12,804 INFO L470 AbstractCegarLoop]: Abstraction has 26358 states and 38654 transitions. [2021-11-06 17:43:12,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 2 states have call successors, (6), 2 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 17:43:12,804 INFO L276 IsEmpty]: Start isEmpty. Operand 26358 states and 38654 transitions. [2021-11-06 17:43:13,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2021-11-06 17:43:13,137 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 17:43:13,137 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:43:13,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 17:43:13,138 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ##fun~$Pointer$~X~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION === [il4965_config_apErr0ASSERT_VIOLATIONERROR_FUNCTION, il4965_config_apErr1ASSERT_VIOLATIONERROR_FUNCTION, ##fun~$Pointer$~TO~VOIDErr0ASSERT_VIOLATIONERROR_FUNCTION (and 24 more)] === [2021-11-06 17:43:13,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 17:43:13,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1525547177, now seen corresponding path program 1 times [2021-11-06 17:43:13,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 17:43:13,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625465872] [2021-11-06 17:43:13,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 17:43:13,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 17:43:14,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 17:43:15,114 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-11-06 17:43:15,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 17:43:15,115 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625465872] [2021-11-06 17:43:15,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625465872] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 17:43:15,116 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 17:43:15,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 17:43:15,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892104360] [2021-11-06 17:43:15,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 17:43:15,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 17:43:15,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 17:43:15,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 17:43:15,118 INFO L87 Difference]: Start difference. First operand 26358 states and 38654 transitions. Second operand has 4 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 2 states have call successors, (6), 2 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)