./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-ethernet-atheros-alx-alx.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-alx-alx.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 0ed43de24ffaa93b1a37c00c78c0cdaa1e1005aa52f2fbac965e933337484318 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 20:08:29,348 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 20:08:29,373 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 20:08:29,412 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 20:08:29,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 20:08:29,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 20:08:29,416 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 20:08:29,418 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 20:08:29,420 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 20:08:29,423 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 20:08:29,424 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 20:08:29,425 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 20:08:29,425 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 20:08:29,427 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 20:08:29,428 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 20:08:29,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 20:08:29,431 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 20:08:29,432 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 20:08:29,434 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 20:08:29,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 20:08:29,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 20:08:29,441 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 20:08:29,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 20:08:29,443 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 20:08:29,448 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 20:08:29,448 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 20:08:29,448 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 20:08:29,450 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 20:08:29,450 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 20:08:29,451 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 20:08:29,451 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 20:08:29,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 20:08:29,453 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 20:08:29,453 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 20:08:29,454 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 20:08:29,454 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 20:08:29,455 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 20:08:29,455 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 20:08:29,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 20:08:29,456 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 20:08:29,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 20:08:29,457 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 20:08:29,482 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 20:08:29,483 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 20:08:29,483 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 20:08:29,483 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 20:08:29,484 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 20:08:29,484 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 20:08:29,485 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 20:08:29,485 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 20:08:29,485 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 20:08:29,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 20:08:29,486 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 20:08:29,486 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 20:08:29,486 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 20:08:29,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 20:08:29,486 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 20:08:29,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 20:08:29,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 20:08:29,487 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 20:08:29,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 20:08:29,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 20:08:29,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 20:08:29,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 20:08:29,488 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 20:08:29,488 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 20:08:29,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 20:08:29,488 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 20:08:29,488 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 20:08:29,488 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 20:08:29,488 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 20:08:29,489 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0ed43de24ffaa93b1a37c00c78c0cdaa1e1005aa52f2fbac965e933337484318 [2021-11-06 20:08:29,664 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 20:08:29,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 20:08:29,681 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 20:08:29,682 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 20:08:29,683 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 20:08:29,684 INFO L432 ainManager$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-ethernet-atheros-alx-alx.cil.i [2021-11-06 20:08:29,744 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa4d9740e/001c6dd3156b4c8a986733953fd86422/FLAG9e13b9b14 [2021-11-06 20:08:30,378 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 20:08:30,379 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i [2021-11-06 20:08:30,419 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa4d9740e/001c6dd3156b4c8a986733953fd86422/FLAG9e13b9b14 [2021-11-06 20:08:30,756 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa4d9740e/001c6dd3156b4c8a986733953fd86422 [2021-11-06 20:08:30,758 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 20:08:30,759 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 20:08:30,760 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 20:08:30,760 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 20:08:30,762 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 20:08:30,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:08:30" (1/1) ... [2021-11-06 20:08:30,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bbf06c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:30, skipping insertion in model container [2021-11-06 20:08:30,763 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 08:08:30" (1/1) ... [2021-11-06 20:08:30,767 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 20:08:30,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 20:08:34,418 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-ethernet-atheros-alx-alx.cil.i[458925,458938] [2021-11-06 20:08:34,421 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-ethernet-atheros-alx-alx.cil.i[459070,459083] [2021-11-06 20:08:34,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 20:08:34,495 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 20:08:34,761 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-ethernet-atheros-alx-alx.cil.i[458925,458938] [2021-11-06 20:08:34,762 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-ethernet-atheros-alx-alx.cil.i[459070,459083] [2021-11-06 20:08:34,767 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 20:08:34,992 INFO L208 MainTranslator]: Completed translation [2021-11-06 20:08:34,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:34 WrapperNode [2021-11-06 20:08:34,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 20:08:34,994 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 20:08:34,994 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 20:08:34,994 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 20:08:34,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:34" (1/1) ... [2021-11-06 20:08:35,099 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:34" (1/1) ... [2021-11-06 20:08:46,606 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 20:08:46,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 20:08:46,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 20:08:46,608 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 20:08:46,614 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:34" (1/1) ... [2021-11-06 20:08:46,615 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:34" (1/1) ... [2021-11-06 20:08:48,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:34" (1/1) ... [2021-11-06 20:08:48,284 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:34" (1/1) ... [2021-11-06 20:08:51,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:34" (1/1) ... [2021-11-06 20:08:52,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:34" (1/1) ... [2021-11-06 20:08:52,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:34" (1/1) ... [2021-11-06 20:08:54,160 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 20:08:54,161 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 20:08:54,161 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 20:08:54,161 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 20:08:54,162 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:34" (1/1) ... [2021-11-06 20:08:54,167 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 20:08:54,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 20:08:54,185 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-06 20:08:54,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 20:08:54,209 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2021-11-06 20:08:54,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-06 20:08:54,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-06 20:08:54,209 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 20:08:54,209 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 20:08:54,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 20:08:54,210 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-06 20:08:54,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 20:08:54,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 20:08:54,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-06 20:08:54,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-06 20:08:54,210 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-11-06 20:08:54,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 20:08:54,210 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 20:08:54,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 20:08:54,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 20:08:54,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 20:08:54,190 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-06 20:12:17,093 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2021-11-06 20:12:17,093 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2021-11-06 20:12:17,093 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2021-11-06 20:12:17,094 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break#2: ldv_switch_4_#res := 0; [2021-11-06 20:12:17,095 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2021-11-06 20:12:17,100 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2021-11-06 20:12:17,101 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2021-11-06 20:12:17,101 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2021-11-06 20:12:17,101 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2021-11-06 20:12:17,102 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2021-11-06 20:12:17,106 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-06 20:12:17,123 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_4_switch_break: ldv_switch_4_#res := 0; [2021-11-06 20:12:17,263 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 20:12:17,264 INFO L299 CfgBuilder]: Removed 88288 assume(true) statements. [2021-11-06 20:12:17,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:12:17 BoogieIcfgContainer [2021-11-06 20:12:17,308 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 20:12:17,309 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 20:12:17,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 20:12:17,312 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 20:12:17,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 08:08:30" (1/3) ... [2021-11-06 20:12:17,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e34d566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:12:17, skipping insertion in model container [2021-11-06 20:12:17,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 08:08:34" (2/3) ... [2021-11-06 20:12:17,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e34d566 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 08:12:17, skipping insertion in model container [2021-11-06 20:12:17,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 08:12:17" (3/3) ... [2021-11-06 20:12:17,314 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-alx-alx.cil.i [2021-11-06 20:12:17,317 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 20:12:17,318 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 184 error locations. [2021-11-06 20:12:17,485 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 20:12:17,489 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-06 20:12:17,489 INFO L340 AbstractCegarLoop]: Starting to check reachability of 184 error locations. [2021-11-06 20:12:18,219 INFO L276 IsEmpty]: Start isEmpty. Operand has 66501 states, 66317 states have (on average 1.2883875929248911) internal successors, (85442), 66500 states have internal predecessors, (85442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:12:18,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-11-06 20:12:18,241 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:12:18,242 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] [2021-11-06 20:12:18,242 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 181 more)] === [2021-11-06 20:12:18,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:12:18,259 INFO L85 PathProgramCache]: Analyzing trace with hash -2004797123, now seen corresponding path program 1 times [2021-11-06 20:12:18,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:12:18,267 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370158628] [2021-11-06 20:12:18,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:12:18,268 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:12:18,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:12:18,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:12:18,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:12:18,983 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370158628] [2021-11-06 20:12:18,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370158628] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:12:18,984 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:12:18,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:12:18,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326781302] [2021-11-06 20:12:18,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:12:18,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:12:19,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:12:19,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:12:19,079 INFO L87 Difference]: Start difference. First operand has 66501 states, 66317 states have (on average 1.2883875929248911) internal successors, (85442), 66500 states have internal predecessors, (85442), 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 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:12:24,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:12:24,072 INFO L93 Difference]: Finished difference Result 185430 states and 237633 transitions. [2021-11-06 20:12:24,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:12:24,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 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 79 [2021-11-06 20:12:24,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:12:24,445 INFO L225 Difference]: With dead ends: 185430 [2021-11-06 20:12:24,445 INFO L226 Difference]: Without dead ends: 115335 [2021-11-06 20:12:24,604 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:12:25,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115335 states. [2021-11-06 20:12:27,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115335 to 115011. [2021-11-06 20:12:27,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115011 states, 114827 states have (on average 1.2443153613697127) internal successors, (142881), 115010 states have internal predecessors, (142881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:12:28,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115011 states to 115011 states and 142881 transitions. [2021-11-06 20:12:28,018 INFO L78 Accepts]: Start accepts. Automaton has 115011 states and 142881 transitions. Word has length 79 [2021-11-06 20:12:28,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:12:28,019 INFO L470 AbstractCegarLoop]: Abstraction has 115011 states and 142881 transitions. [2021-11-06 20:12:28,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:12:28,019 INFO L276 IsEmpty]: Start isEmpty. Operand 115011 states and 142881 transitions. [2021-11-06 20:12:28,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-06 20:12:28,023 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:12:28,023 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] [2021-11-06 20:12:28,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 20:12:28,023 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 181 more)] === [2021-11-06 20:12:28,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:12:28,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1590367362, now seen corresponding path program 1 times [2021-11-06 20:12:28,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:12:28,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409242977] [2021-11-06 20:12:28,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:12:28,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:12:28,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:12:28,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:12:28,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:12:28,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409242977] [2021-11-06 20:12:28,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409242977] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:12:28,351 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:12:28,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:12:28,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440186449] [2021-11-06 20:12:28,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:12:28,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:12:28,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:12:28,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:12:28,355 INFO L87 Difference]: Start difference. First operand 115011 states and 142881 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:12:33,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:12:33,315 INFO L93 Difference]: Finished difference Result 254163 states and 315720 transitions. [2021-11-06 20:12:33,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:12:33,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 80 [2021-11-06 20:12:33,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:12:33,641 INFO L225 Difference]: With dead ends: 254163 [2021-11-06 20:12:33,643 INFO L226 Difference]: Without dead ends: 139284 [2021-11-06 20:12:33,808 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:12:33,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139284 states. [2021-11-06 20:12:36,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139284 to 139190. [2021-11-06 20:12:36,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139190 states, 139006 states have (on average 1.2436585471130743) internal successors, (172876), 139189 states have internal predecessors, (172876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:12:36,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139190 states to 139190 states and 172876 transitions. [2021-11-06 20:12:36,550 INFO L78 Accepts]: Start accepts. Automaton has 139190 states and 172876 transitions. Word has length 80 [2021-11-06 20:12:36,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 20:12:36,551 INFO L470 AbstractCegarLoop]: Abstraction has 139190 states and 172876 transitions. [2021-11-06 20:12:36,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:12:36,552 INFO L276 IsEmpty]: Start isEmpty. Operand 139190 states and 172876 transitions. [2021-11-06 20:12:36,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-06 20:12:36,555 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 20:12:36,556 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] [2021-11-06 20:12:36,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 20:12:36,556 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr172ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 181 more)] === [2021-11-06 20:12:36,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 20:12:36,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1131687835, now seen corresponding path program 1 times [2021-11-06 20:12:36,557 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 20:12:36,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561236892] [2021-11-06 20:12:36,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 20:12:36,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 20:12:37,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 20:12:37,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 20:12:37,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 20:12:37,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561236892] [2021-11-06 20:12:37,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561236892] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 20:12:37,185 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 20:12:37,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 20:12:37,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437171731] [2021-11-06 20:12:37,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 20:12:37,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 20:12:37,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 20:12:37,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:12:37,189 INFO L87 Difference]: Start difference. First operand 139190 states and 172876 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 20:12:43,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 20:12:43,635 INFO L93 Difference]: Finished difference Result 398354 states and 494692 transitions. [2021-11-06 20:12:43,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 20:12:43,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 93 [2021-11-06 20:12:43,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 20:12:44,489 INFO L225 Difference]: With dead ends: 398354 [2021-11-06 20:12:44,489 INFO L226 Difference]: Without dead ends: 259296 [2021-11-06 20:12:44,701 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 20:12:45,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259296 states.