/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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 16:06:59,874 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 16:06:59,877 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 16:06:59,920 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 16:06:59,920 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 16:06:59,922 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 16:06:59,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 16:06:59,926 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 16:06:59,929 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 16:06:59,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 16:06:59,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 16:06:59,933 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 16:06:59,933 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 16:06:59,934 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 16:06:59,936 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 16:06:59,937 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 16:06:59,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 16:06:59,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 16:06:59,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 16:06:59,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 16:06:59,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 16:06:59,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 16:06:59,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 16:06:59,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 16:06:59,971 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 16:06:59,972 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 16:06:59,972 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 16:06:59,973 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 16:06:59,973 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 16:06:59,975 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 16:06:59,975 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 16:06:59,976 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 16:06:59,977 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 16:06:59,978 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 16:06:59,979 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 16:06:59,980 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 16:06:59,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 16:06:59,981 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 16:06:59,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 16:06:59,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 16:06:59,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 16:06:59,985 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 16:07:00,011 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 16:07:00,012 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 16:07:00,013 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 16:07:00,014 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 16:07:00,014 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 16:07:00,014 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 16:07:00,015 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 16:07:00,015 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 16:07:00,015 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 16:07:00,015 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 16:07:00,016 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 16:07:00,016 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 16:07:00,016 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 16:07:00,016 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 16:07:00,017 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 16:07:00,017 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 16:07:00,017 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 16:07:00,018 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 16:07:00,018 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 16:07:00,018 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 16:07:00,018 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 16:07:00,019 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 16:07:00,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 16:07:00,019 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 16:07:00,020 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 16:07:00,020 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 16:07:00,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 16:07:00,507 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 16:07:00,510 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 16:07:00,512 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 16:07:00,512 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 16:07:00,513 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2020-12-22 16:07:00,607 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eab8cc46e/d623b3fc89414fb180e0357e52d02fd0/FLAG1b07a0b91 [2020-12-22 16:07:01,842 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 16:07:01,843 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2020-12-22 16:07:01,914 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eab8cc46e/d623b3fc89414fb180e0357e52d02fd0/FLAG1b07a0b91 [2020-12-22 16:07:02,124 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eab8cc46e/d623b3fc89414fb180e0357e52d02fd0 [2020-12-22 16:07:02,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 16:07:02,132 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 16:07:02,136 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 16:07:02,136 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 16:07:02,140 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 16:07:02,141 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:07:02" (1/1) ... [2020-12-22 16:07:02,143 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f09fb2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:07:02, skipping insertion in model container [2020-12-22 16:07:02,144 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:07:02" (1/1) ... [2020-12-22 16:07:02,153 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 16:07:02,388 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 16:07:06,653 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394320,394333] [2020-12-22 16:07:06,657 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394489,394502] [2020-12-22 16:07:06,658 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394656,394669] [2020-12-22 16:07:06,659 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394824,394837] [2020-12-22 16:07:06,674 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 16:07:06,717 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 16:07:08,189 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394320,394333] [2020-12-22 16:07:08,190 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394489,394502] [2020-12-22 16:07:08,194 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394656,394669] [2020-12-22 16:07:08,196 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i[394824,394837] [2020-12-22 16:07:08,207 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 16:07:09,499 INFO L208 MainTranslator]: Completed translation [2020-12-22 16:07:09,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:07:09 WrapperNode [2020-12-22 16:07:09,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 16:07:09,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 16:07:09,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 16:07:09,502 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 16:07:09,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:07:09" (1/1) ... [2020-12-22 16:07:09,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:07:09" (1/1) ... [2020-12-22 16:07:19,763 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 16:07:19,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 16:07:19,765 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 16:07:19,765 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 16:07:19,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:07:09" (1/1) ... [2020-12-22 16:07:19,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:07:09" (1/1) ... [2020-12-22 16:07:21,867 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:07:09" (1/1) ... [2020-12-22 16:07:21,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:07:09" (1/1) ... [2020-12-22 16:07:25,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:07:09" (1/1) ... [2020-12-22 16:07:26,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:07:09" (1/1) ... [2020-12-22 16:07:27,114 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:07:09" (1/1) ... [2020-12-22 16:07:28,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 16:07:28,853 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 16:07:28,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 16:07:28,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 16:07:28,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:07:09" (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 16:07:28,989 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2020-12-22 16:07:28,989 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2020-12-22 16:07:28,989 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2020-12-22 16:07:28,990 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2020-12-22 16:07:28,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 16:07:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 16:07:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 16:07:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 16:07:28,993 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2020-12-22 16:07:28,994 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2020-12-22 16:07:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 16:07:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 16:07:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 16:07:28,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 16:07:28,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 16:07:28,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 16:07:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 16:07:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 16:07:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 16:07:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2020-12-22 16:07:28,995 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2020-12-22 16:07:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 16:07:28,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 16:07:28,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 16:07:28,996 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 16:07:28,996 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2020-12-22 16:07:28,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2020-12-22 16:09:05,715 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2020-12-22 16:09:05,716 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2020-12-22 16:09:05,716 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2020-12-22 16:09:05,717 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2020-12-22 16:09:05,717 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2020-12-22 16:09:05,717 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#5: ldv_switch_2_#res := 0; [2020-12-22 16:09:05,717 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#6: ldv_switch_2_#res := 0; [2020-12-22 16:09:05,717 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#7: ldv_switch_2_#res := 0; [2020-12-22 16:09:05,717 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#8: ldv_switch_2_#res := 0; [2020-12-22 16:09:05,718 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2020-12-22 16:09:05,718 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2020-12-22 16:09:05,730 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2020-12-22 16:09:05,731 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2020-12-22 16:09:05,732 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint lmc_trace_returnLabel#14: havoc lmc_proto_type_#t~mem1375.base, lmc_proto_type_#t~mem1375.offset; [2020-12-22 16:09:05,733 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint lmc_trace_returnLabel#10: havoc lmc_proto_type_#t~mem1375.base, lmc_proto_type_#t~mem1375.offset; [2020-12-22 16:09:05,862 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 16:09:05,862 INFO L299 CfgBuilder]: Removed 40678 assume(true) statements. [2020-12-22 16:09:05,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:09:05 BoogieIcfgContainer [2020-12-22 16:09:05,891 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 16:09:05,893 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 16:09:05,893 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 16:09:05,896 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 16:09:05,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:07:02" (1/3) ... [2020-12-22 16:09:05,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@367bf655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:09:05, skipping insertion in model container [2020-12-22 16:09:05,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:07:09" (2/3) ... [2020-12-22 16:09:05,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@367bf655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:09:05, skipping insertion in model container [2020-12-22 16:09:05,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:09:05" (3/3) ... [2020-12-22 16:09:05,900 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-wan-lmc-lmc.cil.i [2020-12-22 16:09:05,907 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 16:09:05,925 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 68 error locations. [2020-12-22 16:09:05,946 INFO L253 AbstractCegarLoop]: Starting to check reachability of 68 error locations. [2020-12-22 16:09:06,098 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 16:09:06,098 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 16:09:06,099 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 16:09:06,099 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 16:09:06,099 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 16:09:06,099 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 16:09:06,099 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 16:09:06,099 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 16:09:06,454 INFO L276 IsEmpty]: Start isEmpty. Operand 31672 states. [2020-12-22 16:09:06,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-12-22 16:09:06,474 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:09:06,475 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 16:09:06,477 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr59ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr55ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr64ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr60ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr56ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr65ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr61ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr57ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr58ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, lmc_driver_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, lmc_driver_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:09:06,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:09:06,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1944323651, now seen corresponding path program 1 times [2020-12-22 16:09:06,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:09:06,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702014316] [2020-12-22 16:09:06,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:09:07,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:09:07,673 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 16:09:07,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702014316] [2020-12-22 16:09:07,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:09:07,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:09:07,676 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721189674] [2020-12-22 16:09:07,687 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:09:07,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:09:07,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:09:07,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:09:07,721 INFO L87 Difference]: Start difference. First operand 31672 states. Second operand 3 states. [2020-12-22 16:09:12,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:09:12,726 INFO L93 Difference]: Finished difference Result 94470 states and 117796 transitions. [2020-12-22 16:09:12,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:09:12,728 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 63 [2020-12-22 16:09:12,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:09:13,431 INFO L225 Difference]: With dead ends: 94470 [2020-12-22 16:09:13,431 INFO L226 Difference]: Without dead ends: 62620 [2020-12-22 16:09:13,606 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 16:09:13,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62620 states. [2020-12-22 16:09:15,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62620 to 62562. [2020-12-22 16:09:15,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62562 states. [2020-12-22 16:09:16,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62562 states to 62562 states and 77677 transitions. [2020-12-22 16:09:16,357 INFO L78 Accepts]: Start accepts. Automaton has 62562 states and 77677 transitions. Word has length 63 [2020-12-22 16:09:16,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:09:16,360 INFO L481 AbstractCegarLoop]: Abstraction has 62562 states and 77677 transitions. [2020-12-22 16:09:16,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:09:16,360 INFO L276 IsEmpty]: Start isEmpty. Operand 62562 states and 77677 transitions. [2020-12-22 16:09:16,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-12-22 16:09:16,369 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:09:16,370 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, 1] [2020-12-22 16:09:16,370 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 16:09:16,371 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr59ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr55ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr64ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr60ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr56ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr65ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr61ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr57ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr58ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, lmc_driver_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, lmc_driver_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:09:16,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:09:16,372 INFO L82 PathProgramCache]: Analyzing trace with hash -691082562, now seen corresponding path program 1 times [2020-12-22 16:09:16,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:09:16,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271449310] [2020-12-22 16:09:16,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:09:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:09:16,799 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 16:09:16,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271449310] [2020-12-22 16:09:16,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:09:16,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:09:16,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944184285] [2020-12-22 16:09:16,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:09:16,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:09:16,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:09:16,806 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:09:16,806 INFO L87 Difference]: Start difference. First operand 62562 states and 77677 transitions. Second operand 3 states. [2020-12-22 16:09:23,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:09:23,036 INFO L93 Difference]: Finished difference Result 186826 states and 231989 transitions. [2020-12-22 16:09:23,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:09:23,038 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-12-22 16:09:23,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:09:23,869 INFO L225 Difference]: With dead ends: 186826 [2020-12-22 16:09:23,869 INFO L226 Difference]: Without dead ends: 124388 [2020-12-22 16:09:24,156 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 16:09:24,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124388 states. [2020-12-22 16:09:27,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124388 to 124094. [2020-12-22 16:09:27,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124094 states. [2020-12-22 16:09:28,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124094 states to 124094 states and 154181 transitions. [2020-12-22 16:09:28,462 INFO L78 Accepts]: Start accepts. Automaton has 124094 states and 154181 transitions. Word has length 64 [2020-12-22 16:09:28,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:09:28,463 INFO L481 AbstractCegarLoop]: Abstraction has 124094 states and 154181 transitions. [2020-12-22 16:09:28,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:09:28,463 INFO L276 IsEmpty]: Start isEmpty. Operand 124094 states and 154181 transitions. [2020-12-22 16:09:28,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-22 16:09:28,468 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:09:28,469 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, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:09:28,469 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 16:09:28,470 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr59ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr55ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr64ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr60ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr56ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr65ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr61ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr57ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr58ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, lmc_driver_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, lmc_driver_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:09:28,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:09:28,470 INFO L82 PathProgramCache]: Analyzing trace with hash -570518936, now seen corresponding path program 1 times [2020-12-22 16:09:28,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:09:28,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170369567] [2020-12-22 16:09:28,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:09:28,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:09:28,834 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 16:09:28,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170369567] [2020-12-22 16:09:28,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:09:28,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:09:28,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236224174] [2020-12-22 16:09:28,837 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:09:28,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:09:28,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:09:28,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:09:28,839 INFO L87 Difference]: Start difference. First operand 124094 states and 154181 transitions. Second operand 3 states. [2020-12-22 16:09:36,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:09:36,967 INFO L93 Difference]: Finished difference Result 356830 states and 443689 transitions. [2020-12-22 16:09:36,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:09:36,971 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-12-22 16:09:36,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:09:38,238 INFO L225 Difference]: With dead ends: 356830 [2020-12-22 16:09:38,239 INFO L226 Difference]: Without dead ends: 232860 [2020-12-22 16:09:38,705 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 16:09:39,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232860 states. [2020-12-22 16:09:44,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232860 to 231248. [2020-12-22 16:09:44,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231248 states. [2020-12-22 16:09:45,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231248 states to 231248 states and 287691 transitions. [2020-12-22 16:09:45,535 INFO L78 Accepts]: Start accepts. Automaton has 231248 states and 287691 transitions. Word has length 70 [2020-12-22 16:09:45,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:09:45,536 INFO L481 AbstractCegarLoop]: Abstraction has 231248 states and 287691 transitions. [2020-12-22 16:09:45,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:09:45,536 INFO L276 IsEmpty]: Start isEmpty. Operand 231248 states and 287691 transitions. [2020-12-22 16:09:45,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-22 16:09:45,539 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:09:45,539 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, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:09:45,540 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 16:09:45,540 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr45ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr59ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr55ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr64ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr49ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr44ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr53ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr60ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr56ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr65ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr48ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr52ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr61ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr57ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr47ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr51ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr37ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr46ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr58ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr62ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr63ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr54ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr50ASSERT_VIOLATIONERROR_FUNCTION, lmc_driver_timeoutErr0ASSERT_VIOLATIONERROR_FUNCTION, lmc_driver_timeoutErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:09:45,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:09:45,541 INFO L82 PathProgramCache]: Analyzing trace with hash 1980861288, now seen corresponding path program 1 times [2020-12-22 16:09:45,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:09:45,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895832483] [2020-12-22 16:09:45,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:09:45,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:09:45,824 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 16:09:45,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895832483] [2020-12-22 16:09:45,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:09:45,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:09:45,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261905330] [2020-12-22 16:09:45,827 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:09:45,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:09:45,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:09:45,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:09:45,833 INFO L87 Difference]: Start difference. First operand 231248 states and 287691 transitions. Second operand 3 states. [2020-12-22 16:09:58,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:09:58,805 INFO L93 Difference]: Finished difference Result 673444 states and 838217 transitions. [2020-12-22 16:09:58,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:09:58,807 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-12-22 16:09:58,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:10:01,097 INFO L225 Difference]: With dead ends: 673444 [2020-12-22 16:10:01,097 INFO L226 Difference]: Without dead ends: 442320 [2020-12-22 16:10:01,969 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 16:10:02,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442320 states.