/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 17:06:54,273 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 17:06:54,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 17:06:54,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 17:06:54,338 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 17:06:54,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 17:06:54,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 17:06:54,356 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 17:06:54,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 17:06:54,368 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 17:06:54,370 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 17:06:54,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 17:06:54,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 17:06:54,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 17:06:54,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 17:06:54,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 17:06:54,394 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 17:06:54,398 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 17:06:54,407 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 17:06:54,418 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 17:06:54,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 17:06:54,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 17:06:54,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 17:06:54,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 17:06:54,438 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 17:06:54,439 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 17:06:54,439 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 17:06:54,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 17:06:54,442 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 17:06:54,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 17:06:54,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 17:06:54,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 17:06:54,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 17:06:54,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 17:06:54,451 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 17:06:54,451 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 17:06:54,452 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 17:06:54,453 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 17:06:54,453 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 17:06:54,454 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 17:06:54,455 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 17:06:54,462 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 17:06:54,495 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 17:06:54,496 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 17:06:54,498 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 17:06:54,498 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 17:06:54,498 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 17:06:54,499 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 17:06:54,499 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 17:06:54,499 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 17:06:54,500 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 17:06:54,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 17:06:54,500 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 17:06:54,500 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 17:06:54,501 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 17:06:54,501 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 17:06:54,501 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 17:06:54,502 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 17:06:54,502 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 17:06:54,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 17:06:54,502 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 17:06:54,503 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 17:06:54,503 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 17:06:54,503 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 17:06:54,504 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 17:06:54,504 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 17:06:54,504 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 17:06:54,504 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 17:06:54,931 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 17:06:54,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 17:06:54,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 17:06:54,974 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 17:06:54,975 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 17:06:54,976 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2020-12-22 17:06:55,067 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/479d8b524/cb23ab5618214faeadf5326ba48fe5b5/FLAG3bfd33a40 [2020-12-22 17:06:56,344 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 17:06:56,344 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2020-12-22 17:06:56,451 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/479d8b524/cb23ab5618214faeadf5326ba48fe5b5/FLAG3bfd33a40 [2020-12-22 17:06:56,518 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/479d8b524/cb23ab5618214faeadf5326ba48fe5b5 [2020-12-22 17:06:56,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 17:06:56,525 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 17:06:56,527 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 17:06:56,527 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 17:06:56,531 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 17:06:56,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:06:56" (1/1) ... [2020-12-22 17:06:56,534 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37537adc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:06:56, skipping insertion in model container [2020-12-22 17:06:56,534 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 05:06:56" (1/1) ... [2020-12-22 17:06:56,543 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 17:06:56,776 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 17:07:00,405 WARN L226 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-kernel-locking-mutex_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[408905,408918] [2020-12-22 17:07:00,411 WARN L226 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-kernel-locking-mutex_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[409071,409084] [2020-12-22 17:07:00,412 WARN L226 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-kernel-locking-mutex_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[409235,409248] [2020-12-22 17:07:00,412 WARN L226 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-kernel-locking-mutex_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[409400,409413] [2020-12-22 17:07:00,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 17:07:00,520 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 17:07:01,232 WARN L226 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-kernel-locking-mutex_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[408905,408918] [2020-12-22 17:07:01,232 WARN L226 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-kernel-locking-mutex_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[409071,409084] [2020-12-22 17:07:01,233 WARN L226 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-kernel-locking-mutex_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[409235,409248] [2020-12-22 17:07:01,233 WARN L226 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-kernel-locking-mutex_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i[409400,409413] [2020-12-22 17:07:01,244 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 17:07:02,546 INFO L208 MainTranslator]: Completed translation [2020-12-22 17:07:02,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:07:02 WrapperNode [2020-12-22 17:07:02,546 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 17:07:02,548 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 17:07:02,549 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 17:07:02,549 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 17:07:02,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:07:02" (1/1) ... [2020-12-22 17:07:02,722 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:07:02" (1/1) ... [2020-12-22 17:07:06,219 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 17:07:06,220 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 17:07:06,220 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 17:07:06,220 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 17:07:06,232 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:07:02" (1/1) ... [2020-12-22 17:07:06,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:07:02" (1/1) ... [2020-12-22 17:07:07,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:07:02" (1/1) ... [2020-12-22 17:07:07,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:07:02" (1/1) ... [2020-12-22 17:07:09,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:07:02" (1/1) ... [2020-12-22 17:07:09,819 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:07:02" (1/1) ... [2020-12-22 17:07:10,131 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:07:02" (1/1) ... [2020-12-22 17:07:10,658 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 17:07:10,660 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 17:07:10,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 17:07:10,661 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 17:07:10,662 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:07:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 17:07:11,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 17:07:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 17:07:11,150 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 17:07:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 17:07:11,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 17:07:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 17:07:11,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 17:07:11,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 17:07:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_diag_read_access [2020-12-22 17:07:11,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_diag_read_access [2020-12-22 17:07:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 17:07:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 17:07:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 17:07:11,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 17:07:11,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 17:07:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 17:07:11,159 INFO L130 BoogieDeclarations]: Found specification of procedure ath10k_pci_diag_read_mem [2020-12-22 17:07:11,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ath10k_pci_diag_read_mem [2020-12-22 17:07:11,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 17:08:13,783 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#4: ldv_switch_1_#res := 0; [2020-12-22 17:08:13,784 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2020-12-22 17:08:13,785 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2020-12-22 17:08:13,785 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2020-12-22 17:08:13,785 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#3: ldv_switch_0_#res := 0; [2020-12-22 17:08:13,786 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2020-12-22 17:08:13,789 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2020-12-22 17:08:13,794 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2020-12-22 17:08:13,795 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2020-12-22 17:08:14,011 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 17:08:14,011 INFO L299 CfgBuilder]: Removed 20581 assume(true) statements. [2020-12-22 17:08:14,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:08:14 BoogieIcfgContainer [2020-12-22 17:08:14,030 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 17:08:14,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 17:08:14,035 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 17:08:14,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 17:08:14,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 05:06:56" (1/3) ... [2020-12-22 17:08:14,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@216e5721 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:08:14, skipping insertion in model container [2020-12-22 17:08:14,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 05:07:02" (2/3) ... [2020-12-22 17:08:14,040 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@216e5721 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 05:08:14, skipping insertion in model container [2020-12-22 17:08:14,040 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 05:08:14" (3/3) ... [2020-12-22 17:08:14,044 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-wireless-ath-ath10k-ath10k_pci.cil.i [2020-12-22 17:08:14,051 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 17:08:14,063 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2020-12-22 17:08:14,084 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2020-12-22 17:08:14,168 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 17:08:14,169 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 17:08:14,169 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 17:08:14,169 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 17:08:14,169 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 17:08:14,169 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 17:08:14,170 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 17:08:14,170 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 17:08:14,361 INFO L276 IsEmpty]: Start isEmpty. Operand 15967 states. [2020-12-22 17:08:14,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-22 17:08:14,372 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 17:08:14,373 INFO L422 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] [2020-12-22 17:08:14,374 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 17:08:14,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 17:08:14,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1708363842, now seen corresponding path program 1 times [2020-12-22 17:08:14,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 17:08:14,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986545688] [2020-12-22 17:08:14,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 17:08:14,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 17:08:15,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 17:08:15,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986545688] [2020-12-22 17:08:15,317 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 17:08:15,317 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 17:08:15,318 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797648447] [2020-12-22 17:08:15,325 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 17:08:15,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 17:08:15,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 17:08:15,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 17:08:15,351 INFO L87 Difference]: Start difference. First operand 15967 states. Second operand 3 states. [2020-12-22 17:08:18,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 17:08:18,961 INFO L93 Difference]: Finished difference Result 47261 states and 61812 transitions. [2020-12-22 17:08:18,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 17:08:18,963 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-12-22 17:08:18,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 17:08:19,181 INFO L225 Difference]: With dead ends: 47261 [2020-12-22 17:08:19,181 INFO L226 Difference]: Without dead ends: 30822 [2020-12-22 17:08:19,244 INFO L677 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 [2020-12-22 17:08:19,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30822 states. [2020-12-22 17:08:20,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30822 to 30822. [2020-12-22 17:08:20,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30822 states. [2020-12-22 17:08:21,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30822 states to 30822 states and 39523 transitions. [2020-12-22 17:08:21,047 INFO L78 Accepts]: Start accepts. Automaton has 30822 states and 39523 transitions. Word has length 63 [2020-12-22 17:08:21,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 17:08:21,050 INFO L481 AbstractCegarLoop]: Abstraction has 30822 states and 39523 transitions. [2020-12-22 17:08:21,050 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 17:08:21,050 INFO L276 IsEmpty]: Start isEmpty. Operand 30822 states and 39523 transitions. [2020-12-22 17:08:21,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 17:08:21,065 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 17:08:21,065 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 17:08:21,066 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 17:08:21,066 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 17:08:21,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 17:08:21,068 INFO L82 PathProgramCache]: Analyzing trace with hash -1821521916, now seen corresponding path program 1 times [2020-12-22 17:08:21,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 17:08:21,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289339016] [2020-12-22 17:08:21,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 17:08:21,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 17:08:21,458 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 17:08:21,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289339016] [2020-12-22 17:08:21,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 17:08:21,459 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 17:08:21,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586797182] [2020-12-22 17:08:21,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 17:08:21,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 17:08:21,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 17:08:21,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 17:08:21,462 INFO L87 Difference]: Start difference. First operand 30822 states and 39523 transitions. Second operand 3 states. [2020-12-22 17:08:24,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 17:08:24,945 INFO L93 Difference]: Finished difference Result 61519 states and 78912 transitions. [2020-12-22 17:08:24,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 17:08:24,947 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2020-12-22 17:08:24,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 17:08:25,076 INFO L225 Difference]: With dead ends: 61519 [2020-12-22 17:08:25,076 INFO L226 Difference]: Without dead ends: 46126 [2020-12-22 17:08:25,122 INFO L677 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 [2020-12-22 17:08:25,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46126 states. [2020-12-22 17:08:26,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46126 to 46126. [2020-12-22 17:08:26,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46126 states. [2020-12-22 17:08:26,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46126 states to 46126 states and 59166 transitions. [2020-12-22 17:08:26,528 INFO L78 Accepts]: Start accepts. Automaton has 46126 states and 59166 transitions. Word has length 94 [2020-12-22 17:08:26,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 17:08:26,532 INFO L481 AbstractCegarLoop]: Abstraction has 46126 states and 59166 transitions. [2020-12-22 17:08:26,532 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 17:08:26,532 INFO L276 IsEmpty]: Start isEmpty. Operand 46126 states and 59166 transitions. [2020-12-22 17:08:26,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 17:08:26,542 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 17:08:26,543 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 17:08:26,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 17:08:26,545 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 17:08:26,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 17:08:26,552 INFO L82 PathProgramCache]: Analyzing trace with hash -541658238, now seen corresponding path program 1 times [2020-12-22 17:08:26,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 17:08:26,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156479683] [2020-12-22 17:08:26,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 17:08:26,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 17:08:26,946 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 17:08:26,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156479683] [2020-12-22 17:08:26,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 17:08:26,947 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 17:08:26,947 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381478396] [2020-12-22 17:08:26,947 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 17:08:26,948 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 17:08:26,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 17:08:26,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 17:08:26,949 INFO L87 Difference]: Start difference. First operand 46126 states and 59166 transitions. Second operand 3 states. [2020-12-22 17:08:30,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 17:08:30,878 INFO L93 Difference]: Finished difference Result 92126 states and 118196 transitions. [2020-12-22 17:08:30,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 17:08:30,879 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2020-12-22 17:08:30,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 17:08:31,045 INFO L225 Difference]: With dead ends: 92126 [2020-12-22 17:08:31,046 INFO L226 Difference]: Without dead ends: 61429 [2020-12-22 17:08:31,116 INFO L677 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 [2020-12-22 17:08:31,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61429 states. [2020-12-22 17:08:32,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61429 to 61429. [2020-12-22 17:08:32,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61429 states. [2020-12-22 17:08:32,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61429 states to 61429 states and 78808 transitions. [2020-12-22 17:08:32,951 INFO L78 Accepts]: Start accepts. Automaton has 61429 states and 78808 transitions. Word has length 94 [2020-12-22 17:08:32,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 17:08:32,951 INFO L481 AbstractCegarLoop]: Abstraction has 61429 states and 78808 transitions. [2020-12-22 17:08:32,951 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 17:08:32,951 INFO L276 IsEmpty]: Start isEmpty. Operand 61429 states and 78808 transitions. [2020-12-22 17:08:32,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-12-22 17:08:32,957 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 17:08:32,957 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2020-12-22 17:08:32,957 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 17:08:32,958 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 17:08:32,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 17:08:32,958 INFO L82 PathProgramCache]: Analyzing trace with hash 897397054, now seen corresponding path program 1 times [2020-12-22 17:08:32,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 17:08:32,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037894017] [2020-12-22 17:08:32,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 17:08:33,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 17:08:33,617 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-22 17:08:33,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037894017] [2020-12-22 17:08:33,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 17:08:33,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 17:08:33,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496508720] [2020-12-22 17:08:33,624 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 17:08:33,624 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 17:08:33,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 17:08:33,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 17:08:33,625 INFO L87 Difference]: Start difference. First operand 61429 states and 78808 transitions. Second operand 4 states. [2020-12-22 17:08:35,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 17:08:35,608 INFO L93 Difference]: Finished difference Result 61429 states and 78808 transitions. [2020-12-22 17:08:35,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 17:08:35,609 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 95 [2020-12-22 17:08:35,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 17:08:35,753 INFO L225 Difference]: With dead ends: 61429 [2020-12-22 17:08:35,753 INFO L226 Difference]: Without dead ends: 61423 [2020-12-22 17:08:35,768 INFO L677 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 [2020-12-22 17:08:35,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61423 states. [2020-12-22 17:08:37,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61423 to 61423. [2020-12-22 17:08:37,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61423 states. [2020-12-22 17:08:38,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61423 states to 61423 states and 78802 transitions. [2020-12-22 17:08:38,001 INFO L78 Accepts]: Start accepts. Automaton has 61423 states and 78802 transitions. Word has length 95 [2020-12-22 17:08:38,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 17:08:38,003 INFO L481 AbstractCegarLoop]: Abstraction has 61423 states and 78802 transitions. [2020-12-22 17:08:38,003 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 17:08:38,003 INFO L276 IsEmpty]: Start isEmpty. Operand 61423 states and 78802 transitions. [2020-12-22 17:08:38,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-22 17:08:38,015 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 17:08:38,016 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2020-12-22 17:08:38,016 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 17:08:38,016 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 17:08:38,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 17:08:38,017 INFO L82 PathProgramCache]: Analyzing trace with hash -889684063, now seen corresponding path program 1 times [2020-12-22 17:08:38,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 17:08:38,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807933684] [2020-12-22 17:08:38,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 17:08:38,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 17:08:38,562 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-22 17:08:38,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807933684] [2020-12-22 17:08:38,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 17:08:38,563 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 17:08:38,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516778765] [2020-12-22 17:08:38,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 17:08:38,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 17:08:38,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 17:08:38,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 17:08:38,566 INFO L87 Difference]: Start difference. First operand 61423 states and 78802 transitions. Second operand 4 states. [2020-12-22 17:08:40,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 17:08:40,482 INFO L93 Difference]: Finished difference Result 61423 states and 78802 transitions. [2020-12-22 17:08:40,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 17:08:40,483 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 97 [2020-12-22 17:08:40,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 17:08:40,617 INFO L225 Difference]: With dead ends: 61423 [2020-12-22 17:08:40,617 INFO L226 Difference]: Without dead ends: 61417 [2020-12-22 17:08:40,634 INFO L677 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 [2020-12-22 17:08:40,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61417 states. [2020-12-22 17:08:42,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61417 to 61417. [2020-12-22 17:08:42,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61417 states. [2020-12-22 17:08:42,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61417 states to 61417 states and 78796 transitions. [2020-12-22 17:08:42,514 INFO L78 Accepts]: Start accepts. Automaton has 61417 states and 78796 transitions. Word has length 97 [2020-12-22 17:08:42,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 17:08:42,515 INFO L481 AbstractCegarLoop]: Abstraction has 61417 states and 78796 transitions. [2020-12-22 17:08:42,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 17:08:42,515 INFO L276 IsEmpty]: Start isEmpty. Operand 61417 states and 78796 transitions. [2020-12-22 17:08:42,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-12-22 17:08:42,522 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 17:08:42,522 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 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] [2020-12-22 17:08:42,523 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 17:08:42,523 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 17:08:42,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 17:08:42,523 INFO L82 PathProgramCache]: Analyzing trace with hash -287718780, now seen corresponding path program 1 times [2020-12-22 17:08:42,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 17:08:42,524 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907403601] [2020-12-22 17:08:42,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 17:08:42,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 17:08:43,223 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-22 17:08:43,223 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907403601] [2020-12-22 17:08:43,225 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 17:08:43,229 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 17:08:43,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422751304] [2020-12-22 17:08:43,230 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 17:08:43,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 17:08:43,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 17:08:43,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 17:08:43,231 INFO L87 Difference]: Start difference. First operand 61417 states and 78796 transitions. Second operand 4 states. [2020-12-22 17:08:45,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 17:08:45,172 INFO L93 Difference]: Finished difference Result 61417 states and 78796 transitions. [2020-12-22 17:08:45,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 17:08:45,173 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 99 [2020-12-22 17:08:45,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 17:08:45,173 INFO L225 Difference]: With dead ends: 61417 [2020-12-22 17:08:45,173 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 17:08:45,244 INFO L677 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 [2020-12-22 17:08:45,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 17:08:45,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 17:08:45,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 17:08:45,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 17:08:45,246 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 99 [2020-12-22 17:08:45,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 17:08:45,246 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 17:08:45,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 17:08:45,246 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 17:08:45,247 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 17:08:45,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 17:08:45,249 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 17:08:46,915 WARN L197 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 1