/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-ethernet-dnet.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 16:00:26,823 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 16:00:26,827 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 16:00:26,886 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 16:00:26,887 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 16:00:26,891 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 16:00:26,895 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 16:00:26,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 16:00:26,908 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 16:00:26,913 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 16:00:26,915 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 16:00:26,916 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 16:00:26,917 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 16:00:26,920 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 16:00:26,922 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 16:00:26,923 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 16:00:26,924 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 16:00:26,939 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 16:00:26,944 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 16:00:26,946 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 16:00:26,952 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 16:00:26,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 16:00:26,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 16:00:26,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 16:00:26,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 16:00:26,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 16:00:26,970 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 16:00:26,971 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 16:00:26,975 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 16:00:26,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 16:00:26,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 16:00:26,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 16:00:26,979 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 16:00:26,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 16:00:26,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 16:00:26,982 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 16:00:26,983 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 16:00:26,983 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 16:00:26,984 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 16:00:26,984 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 16:00:26,985 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 16:00:26,989 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 16:00:27,041 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 16:00:27,042 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 16:00:27,046 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 16:00:27,047 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 16:00:27,047 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 16:00:27,047 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 16:00:27,047 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 16:00:27,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 16:00:27,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 16:00:27,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 16:00:27,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 16:00:27,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 16:00:27,050 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 16:00:27,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 16:00:27,050 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 16:00:27,050 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 16:00:27,051 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 16:00:27,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 16:00:27,051 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 16:00:27,051 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 16:00:27,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 16:00:27,052 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 16:00:27,052 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 16:00:27,052 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 16:00:27,052 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 16:00:27,053 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 16:00:27,492 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 16:00:27,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 16:00:27,525 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 16:00:27,527 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 16:00:27,527 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 16:00:27,529 INFO L432 ainManager$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-ethernet-dnet.cil.i [2020-12-22 16:00:27,606 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ff2c11b0/c62b4f8500ab4c81b4326d2f0f15b548/FLAG3fec3c2a2 [2020-12-22 16:00:28,874 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 16:00:28,875 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-ethernet-dnet.cil.i [2020-12-22 16:00:28,930 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ff2c11b0/c62b4f8500ab4c81b4326d2f0f15b548/FLAG3fec3c2a2 [2020-12-22 16:00:29,111 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ff2c11b0/c62b4f8500ab4c81b4326d2f0f15b548 [2020-12-22 16:00:29,115 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 16:00:29,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 16:00:29,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 16:00:29,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 16:00:29,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 16:00:29,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:00:29" (1/1) ... [2020-12-22 16:00:29,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14fe964b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:29, skipping insertion in model container [2020-12-22 16:00:29,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:00:29" (1/1) ... [2020-12-22 16:00:29,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 16:00:29,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 16:00:32,511 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-ethernet-dnet.cil.i[305216,305229] [2020-12-22 16:00:32,515 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-ethernet-dnet.cil.i[305385,305398] [2020-12-22 16:00:32,516 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-ethernet-dnet.cil.i[305552,305565] [2020-12-22 16:00:32,516 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-ethernet-dnet.cil.i[305720,305733] [2020-12-22 16:00:32,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 16:00:32,568 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 16:00:33,106 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-ethernet-dnet.cil.i[305216,305229] [2020-12-22 16:00:33,106 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-ethernet-dnet.cil.i[305385,305398] [2020-12-22 16:00:33,107 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-ethernet-dnet.cil.i[305552,305565] [2020-12-22 16:00:33,107 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-ethernet-dnet.cil.i[305720,305733] [2020-12-22 16:00:33,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 16:00:33,998 INFO L208 MainTranslator]: Completed translation [2020-12-22 16:00:34,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:33 WrapperNode [2020-12-22 16:00:34,000 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 16:00:34,002 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 16:00:34,002 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 16:00:34,002 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 16:00:34,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:33" (1/1) ... [2020-12-22 16:00:34,172 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:33" (1/1) ... [2020-12-22 16:00:36,658 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 16:00:36,660 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 16:00:36,661 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 16:00:36,661 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 16:00:36,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:33" (1/1) ... [2020-12-22 16:00:36,672 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:33" (1/1) ... [2020-12-22 16:00:37,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:33" (1/1) ... [2020-12-22 16:00:37,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:33" (1/1) ... [2020-12-22 16:00:39,232 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:33" (1/1) ... [2020-12-22 16:00:39,632 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:33" (1/1) ... [2020-12-22 16:00:40,005 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:33" (1/1) ... [2020-12-22 16:00:40,706 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 16:00:40,708 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 16:00:40,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 16:00:40,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 16:00:40,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:33" (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 16:00:40,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 16:00:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 16:00:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 16:00:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 16:00:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 16:00:40,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 16:00:40,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 16:00:40,816 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 16:00:40,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 16:00:40,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 16:00:40,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 16:00:40,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 16:00:40,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 16:00:40,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 16:00:40,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 16:01:36,220 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2020-12-22 16:01:36,221 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#2: ldv_switch_2_#res := 0; [2020-12-22 16:01:36,221 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#3: ldv_switch_2_#res := 0; [2020-12-22 16:01:36,221 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break#4: ldv_switch_2_#res := 0; [2020-12-22 16:01:36,221 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2020-12-22 16:01:36,222 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2020-12-22 16:01:36,222 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_2_switch_break: ldv_switch_2_#res := 0; [2020-12-22 16:01:36,228 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2020-12-22 16:01:36,230 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_3_switch_break: ldv_switch_3_#res := 0; [2020-12-22 16:01:36,231 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2020-12-22 16:01:36,294 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 16:01:36,295 INFO L299 CfgBuilder]: Removed 19368 assume(true) statements. [2020-12-22 16:01:36,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:01:36 BoogieIcfgContainer [2020-12-22 16:01:36,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 16:01:36,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 16:01:36,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 16:01:36,315 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 16:01:36,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:00:29" (1/3) ... [2020-12-22 16:01:36,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@518314d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:01:36, skipping insertion in model container [2020-12-22 16:01:36,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:33" (2/3) ... [2020-12-22 16:01:36,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@518314d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:01:36, skipping insertion in model container [2020-12-22 16:01:36,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:01:36" (3/3) ... [2020-12-22 16:01:36,319 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i [2020-12-22 16:01:36,326 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 16:01:36,336 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 32 error locations. [2020-12-22 16:01:36,355 INFO L253 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2020-12-22 16:01:36,425 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 16:01:36,425 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 16:01:36,425 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 16:01:36,425 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 16:01:36,425 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 16:01:36,426 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 16:01:36,426 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 16:01:36,426 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 16:01:36,701 INFO L276 IsEmpty]: Start isEmpty. Operand 13017 states. [2020-12-22 16:01:36,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-22 16:01:36,712 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:01:36,713 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] [2020-12-22 16:01:36,714 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:01:36,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:01:36,724 INFO L82 PathProgramCache]: Analyzing trace with hash -481796582, now seen corresponding path program 1 times [2020-12-22 16:01:36,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:01:36,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805818272] [2020-12-22 16:01:36,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:01:37,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:01:37,676 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 16:01:37,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805818272] [2020-12-22 16:01:37,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:01:37,679 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:01:37,680 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076871503] [2020-12-22 16:01:37,686 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:01:37,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:01:37,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:01:37,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:01:37,711 INFO L87 Difference]: Start difference. First operand 13017 states. Second operand 3 states. [2020-12-22 16:01:41,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:01:41,125 INFO L93 Difference]: Finished difference Result 38703 states and 47341 transitions. [2020-12-22 16:01:41,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:01:41,127 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-12-22 16:01:41,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:01:41,558 INFO L225 Difference]: With dead ends: 38703 [2020-12-22 16:01:41,558 INFO L226 Difference]: Without dead ends: 24229 [2020-12-22 16:01:41,616 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 16:01:41,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24229 states. [2020-12-22 16:01:42,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24229 to 24213. [2020-12-22 16:01:42,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24213 states. [2020-12-22 16:01:42,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24213 states to 24213 states and 28285 transitions. [2020-12-22 16:01:42,699 INFO L78 Accepts]: Start accepts. Automaton has 24213 states and 28285 transitions. Word has length 45 [2020-12-22 16:01:42,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:01:42,701 INFO L481 AbstractCegarLoop]: Abstraction has 24213 states and 28285 transitions. [2020-12-22 16:01:42,701 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:01:42,702 INFO L276 IsEmpty]: Start isEmpty. Operand 24213 states and 28285 transitions. [2020-12-22 16:01:42,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-12-22 16:01:42,710 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:01:42,710 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] [2020-12-22 16:01:42,711 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 16:01:42,711 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:01:42,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:01:42,712 INFO L82 PathProgramCache]: Analyzing trace with hash -38719139, now seen corresponding path program 1 times [2020-12-22 16:01:42,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:01:42,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997082332] [2020-12-22 16:01:42,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:01:42,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:01:43,254 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 16:01:43,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997082332] [2020-12-22 16:01:43,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:01:43,257 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:01:43,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277495587] [2020-12-22 16:01:43,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:01:43,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:01:43,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:01:43,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:01:43,261 INFO L87 Difference]: Start difference. First operand 24213 states and 28285 transitions. Second operand 3 states. [2020-12-22 16:01:47,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:01:47,602 INFO L93 Difference]: Finished difference Result 72105 states and 84271 transitions. [2020-12-22 16:01:47,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:01:47,603 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-12-22 16:01:47,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:01:47,768 INFO L225 Difference]: With dead ends: 72105 [2020-12-22 16:01:47,768 INFO L226 Difference]: Without dead ends: 47976 [2020-12-22 16:01:47,843 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 16:01:48,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47976 states. [2020-12-22 16:01:49,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47976 to 43994. [2020-12-22 16:01:49,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43994 states. [2020-12-22 16:01:49,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43994 states to 43994 states and 51684 transitions. [2020-12-22 16:01:49,577 INFO L78 Accepts]: Start accepts. Automaton has 43994 states and 51684 transitions. Word has length 46 [2020-12-22 16:01:49,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:01:49,578 INFO L481 AbstractCegarLoop]: Abstraction has 43994 states and 51684 transitions. [2020-12-22 16:01:49,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:01:49,578 INFO L276 IsEmpty]: Start isEmpty. Operand 43994 states and 51684 transitions. [2020-12-22 16:01:49,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-22 16:01:49,583 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:01:49,584 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] [2020-12-22 16:01:49,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 16:01:49,589 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:01:49,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:01:49,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1141204786, now seen corresponding path program 1 times [2020-12-22 16:01:49,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:01:49,599 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861709996] [2020-12-22 16:01:49,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:01:49,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:01:49,906 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 16:01:49,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861709996] [2020-12-22 16:01:49,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:01:49,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:01:49,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897809429] [2020-12-22 16:01:49,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:01:49,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:01:49,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:01:49,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:01:49,909 INFO L87 Difference]: Start difference. First operand 43994 states and 51684 transitions. Second operand 3 states. [2020-12-22 16:01:53,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:01:53,521 INFO L93 Difference]: Finished difference Result 91366 states and 107642 transitions. [2020-12-22 16:01:53,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:01:53,522 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2020-12-22 16:01:53,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:01:53,634 INFO L225 Difference]: With dead ends: 91366 [2020-12-22 16:01:53,635 INFO L226 Difference]: Without dead ends: 47456 [2020-12-22 16:01:53,722 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 16:01:53,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47456 states. [2020-12-22 16:01:55,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47456 to 47314. [2020-12-22 16:01:55,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47314 states. [2020-12-22 16:01:55,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47314 states to 47314 states and 55802 transitions. [2020-12-22 16:01:55,442 INFO L78 Accepts]: Start accepts. Automaton has 47314 states and 55802 transitions. Word has length 50 [2020-12-22 16:01:55,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:01:55,445 INFO L481 AbstractCegarLoop]: Abstraction has 47314 states and 55802 transitions. [2020-12-22 16:01:55,445 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:01:55,446 INFO L276 IsEmpty]: Start isEmpty. Operand 47314 states and 55802 transitions. [2020-12-22 16:01:55,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-12-22 16:01:55,448 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:01:55,449 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] [2020-12-22 16:01:55,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 16:01:55,449 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:01:55,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:01:55,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1032539779, now seen corresponding path program 1 times [2020-12-22 16:01:55,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:01:55,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047956519] [2020-12-22 16:01:55,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:01:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:01:55,981 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 16:01:55,981 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047956519] [2020-12-22 16:01:55,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:01:55,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:01:55,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484548609] [2020-12-22 16:01:55,983 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:01:55,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:01:55,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:01:55,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:01:55,985 INFO L87 Difference]: Start difference. First operand 47314 states and 55802 transitions. Second operand 3 states. [2020-12-22 16:02:01,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:02:01,081 INFO L93 Difference]: Finished difference Result 138950 states and 163630 transitions. [2020-12-22 16:02:01,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:02:01,086 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2020-12-22 16:02:01,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:02:01,311 INFO L225 Difference]: With dead ends: 138950 [2020-12-22 16:02:01,311 INFO L226 Difference]: Without dead ends: 91720 [2020-12-22 16:02:01,379 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 16:02:01,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91720 states. [2020-12-22 16:02:04,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91720 to 87766. [2020-12-22 16:02:04,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87766 states. [2020-12-22 16:02:04,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87766 states to 87766 states and 103502 transitions. [2020-12-22 16:02:04,334 INFO L78 Accepts]: Start accepts. Automaton has 87766 states and 103502 transitions. Word has length 60 [2020-12-22 16:02:04,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:02:04,335 INFO L481 AbstractCegarLoop]: Abstraction has 87766 states and 103502 transitions. [2020-12-22 16:02:04,335 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:02:04,335 INFO L276 IsEmpty]: Start isEmpty. Operand 87766 states and 103502 transitions. [2020-12-22 16:02:04,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-12-22 16:02:04,337 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:02:04,337 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 16:02:04,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 16:02:04,338 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:02:04,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:02:04,339 INFO L82 PathProgramCache]: Analyzing trace with hash -1955602062, now seen corresponding path program 1 times [2020-12-22 16:02:04,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:02:04,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308867815] [2020-12-22 16:02:04,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:02:04,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:02:04,826 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 16:02:04,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308867815] [2020-12-22 16:02:04,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:02:04,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:02:04,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275629136] [2020-12-22 16:02:04,829 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:02:04,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:02:04,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:02:04,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:02:04,832 INFO L87 Difference]: Start difference. First operand 87766 states and 103502 transitions. Second operand 3 states. [2020-12-22 16:02:09,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:02:09,214 INFO L93 Difference]: Finished difference Result 172621 states and 203585 transitions. [2020-12-22 16:02:09,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:02:09,215 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2020-12-22 16:02:09,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:02:09,382 INFO L225 Difference]: With dead ends: 172621 [2020-12-22 16:02:09,383 INFO L226 Difference]: Without dead ends: 84939 [2020-12-22 16:02:09,568 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 16:02:09,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84939 states. [2020-12-22 16:02:11,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84939 to 84833. [2020-12-22 16:02:11,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84833 states. [2020-12-22 16:02:11,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84833 states to 84833 states and 99981 transitions. [2020-12-22 16:02:11,942 INFO L78 Accepts]: Start accepts. Automaton has 84833 states and 99981 transitions. Word has length 66 [2020-12-22 16:02:11,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:02:11,943 INFO L481 AbstractCegarLoop]: Abstraction has 84833 states and 99981 transitions. [2020-12-22 16:02:11,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:02:11,944 INFO L276 IsEmpty]: Start isEmpty. Operand 84833 states and 99981 transitions. [2020-12-22 16:02:11,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-22 16:02:11,945 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:02:11,945 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 16:02:11,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 16:02:11,946 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:02:11,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:02:11,946 INFO L82 PathProgramCache]: Analyzing trace with hash 2000051397, now seen corresponding path program 1 times [2020-12-22 16:02:11,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:02:11,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725080563] [2020-12-22 16:02:11,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:02:12,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:02:12,242 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 16:02:12,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725080563] [2020-12-22 16:02:12,243 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:02:12,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:02:12,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134634086] [2020-12-22 16:02:12,245 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:02:12,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:02:12,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:02:12,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:02:12,250 INFO L87 Difference]: Start difference. First operand 84833 states and 99981 transitions. Second operand 3 states. [2020-12-22 16:02:18,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:02:18,189 INFO L93 Difference]: Finished difference Result 253735 states and 299085 transitions. [2020-12-22 16:02:18,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:02:18,192 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-12-22 16:02:18,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:02:18,546 INFO L225 Difference]: With dead ends: 253735 [2020-12-22 16:02:18,547 INFO L226 Difference]: Without dead ends: 169051 [2020-12-22 16:02:18,776 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 16:02:18,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169051 states. [2020-12-22 16:02:23,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169051 to 169005. [2020-12-22 16:02:23,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169005 states. [2020-12-22 16:02:23,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169005 states to 169005 states and 199215 transitions. [2020-12-22 16:02:23,377 INFO L78 Accepts]: Start accepts. Automaton has 169005 states and 199215 transitions. Word has length 70 [2020-12-22 16:02:23,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:02:23,378 INFO L481 AbstractCegarLoop]: Abstraction has 169005 states and 199215 transitions. [2020-12-22 16:02:23,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:02:23,378 INFO L276 IsEmpty]: Start isEmpty. Operand 169005 states and 199215 transitions. [2020-12-22 16:02:23,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-12-22 16:02:23,379 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:02:23,379 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 16:02:23,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 16:02:23,380 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:02:23,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:02:23,381 INFO L82 PathProgramCache]: Analyzing trace with hash -2036750461, now seen corresponding path program 1 times [2020-12-22 16:02:23,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:02:23,381 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079704551] [2020-12-22 16:02:23,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:02:23,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:02:23,733 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 16:02:23,734 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079704551] [2020-12-22 16:02:23,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:02:23,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:02:23,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197343258] [2020-12-22 16:02:23,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:02:23,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:02:23,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:02:23,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:02:23,737 INFO L87 Difference]: Start difference. First operand 169005 states and 199215 transitions. Second operand 4 states. [2020-12-22 16:02:28,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:02:28,201 INFO L93 Difference]: Finished difference Result 169005 states and 199215 transitions. [2020-12-22 16:02:28,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:02:28,202 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 70 [2020-12-22 16:02:28,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:02:28,506 INFO L225 Difference]: With dead ends: 169005 [2020-12-22 16:02:28,506 INFO L226 Difference]: Without dead ends: 169001 [2020-12-22 16:02:28,567 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 16:02:28,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169001 states. [2020-12-22 16:02:32,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169001 to 169001. [2020-12-22 16:02:32,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169001 states. [2020-12-22 16:02:33,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169001 states to 169001 states and 199211 transitions. [2020-12-22 16:02:33,161 INFO L78 Accepts]: Start accepts. Automaton has 169001 states and 199211 transitions. Word has length 70 [2020-12-22 16:02:33,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:02:33,161 INFO L481 AbstractCegarLoop]: Abstraction has 169001 states and 199211 transitions. [2020-12-22 16:02:33,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:02:33,162 INFO L276 IsEmpty]: Start isEmpty. Operand 169001 states and 199211 transitions. [2020-12-22 16:02:33,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-12-22 16:02:33,163 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:02:33,163 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 16:02:33,163 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 16:02:33,164 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:02:33,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:02:33,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1188034950, now seen corresponding path program 1 times [2020-12-22 16:02:33,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:02:33,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542529515] [2020-12-22 16:02:33,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:02:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:02:33,536 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 16:02:33,537 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542529515] [2020-12-22 16:02:33,537 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:02:33,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:02:33,538 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361836100] [2020-12-22 16:02:33,538 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:02:33,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:02:33,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:02:33,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:02:33,540 INFO L87 Difference]: Start difference. First operand 169001 states and 199211 transitions. Second operand 4 states. [2020-12-22 16:02:37,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:02:37,921 INFO L93 Difference]: Finished difference Result 169001 states and 199211 transitions. [2020-12-22 16:02:37,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:02:37,922 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 72 [2020-12-22 16:02:37,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:02:38,240 INFO L225 Difference]: With dead ends: 169001 [2020-12-22 16:02:38,241 INFO L226 Difference]: Without dead ends: 168997 [2020-12-22 16:02:38,286 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 16:02:38,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168997 states. [2020-12-22 16:02:42,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168997 to 168997. [2020-12-22 16:02:42,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168997 states. [2020-12-22 16:02:43,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168997 states to 168997 states and 199207 transitions. [2020-12-22 16:02:43,449 INFO L78 Accepts]: Start accepts. Automaton has 168997 states and 199207 transitions. Word has length 72 [2020-12-22 16:02:43,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:02:43,450 INFO L481 AbstractCegarLoop]: Abstraction has 168997 states and 199207 transitions. [2020-12-22 16:02:43,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:02:43,450 INFO L276 IsEmpty]: Start isEmpty. Operand 168997 states and 199207 transitions. [2020-12-22 16:02:43,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-22 16:02:43,458 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:02:43,458 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 16:02:43,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 16:02:43,459 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:02:43,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:02:43,461 INFO L82 PathProgramCache]: Analyzing trace with hash -759572471, now seen corresponding path program 1 times [2020-12-22 16:02:43,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:02:43,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854964151] [2020-12-22 16:02:43,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:02:43,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:02:43,854 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 16:02:43,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854964151] [2020-12-22 16:02:43,864 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:02:43,864 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:02:43,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256747998] [2020-12-22 16:02:43,865 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:02:43,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:02:43,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:02:43,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:02:43,866 INFO L87 Difference]: Start difference. First operand 168997 states and 199207 transitions. Second operand 4 states. [2020-12-22 16:02:48,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:02:48,853 INFO L93 Difference]: Finished difference Result 168997 states and 199207 transitions. [2020-12-22 16:02:48,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:02:48,854 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 74 [2020-12-22 16:02:48,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:02:49,192 INFO L225 Difference]: With dead ends: 168997 [2020-12-22 16:02:49,193 INFO L226 Difference]: Without dead ends: 168993 [2020-12-22 16:02:49,245 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 16:02:49,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168993 states. [2020-12-22 16:02:54,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168993 to 168993. [2020-12-22 16:02:54,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168993 states. [2020-12-22 16:02:55,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168993 states to 168993 states and 199203 transitions. [2020-12-22 16:02:55,413 INFO L78 Accepts]: Start accepts. Automaton has 168993 states and 199203 transitions. Word has length 74 [2020-12-22 16:02:55,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:02:55,414 INFO L481 AbstractCegarLoop]: Abstraction has 168993 states and 199203 transitions. [2020-12-22 16:02:55,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:02:55,415 INFO L276 IsEmpty]: Start isEmpty. Operand 168993 states and 199203 transitions. [2020-12-22 16:02:55,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-22 16:02:55,417 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:02:55,417 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 16:02:55,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 16:02:55,418 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:02:55,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:02:55,420 INFO L82 PathProgramCache]: Analyzing trace with hash 195437324, now seen corresponding path program 1 times [2020-12-22 16:02:55,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:02:55,421 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553946563] [2020-12-22 16:02:55,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:02:55,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:02:56,015 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 16:02:56,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553946563] [2020-12-22 16:02:56,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:02:56,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:02:56,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573189709] [2020-12-22 16:02:56,019 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:02:56,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:02:56,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:02:56,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:02:56,021 INFO L87 Difference]: Start difference. First operand 168993 states and 199203 transitions. Second operand 4 states. [2020-12-22 16:03:03,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:03:03,465 INFO L93 Difference]: Finished difference Result 168993 states and 199203 transitions. [2020-12-22 16:03:03,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:03:03,466 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 76 [2020-12-22 16:03:03,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:03:03,788 INFO L225 Difference]: With dead ends: 168993 [2020-12-22 16:03:03,788 INFO L226 Difference]: Without dead ends: 168989 [2020-12-22 16:03:03,835 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 16:03:04,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168989 states. [2020-12-22 16:03:09,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168989 to 168989. [2020-12-22 16:03:09,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168989 states. [2020-12-22 16:03:09,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168989 states to 168989 states and 199199 transitions. [2020-12-22 16:03:09,729 INFO L78 Accepts]: Start accepts. Automaton has 168989 states and 199199 transitions. Word has length 76 [2020-12-22 16:03:09,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:03:09,730 INFO L481 AbstractCegarLoop]: Abstraction has 168989 states and 199199 transitions. [2020-12-22 16:03:09,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:03:09,730 INFO L276 IsEmpty]: Start isEmpty. Operand 168989 states and 199199 transitions. [2020-12-22 16:03:09,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-22 16:03:09,731 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:03:09,731 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 16:03:09,731 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 16:03:09,732 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:03:09,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:03:09,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1163150705, now seen corresponding path program 1 times [2020-12-22 16:03:09,732 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:03:09,732 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306617131] [2020-12-22 16:03:09,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:03:09,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:03:10,040 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 16:03:10,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306617131] [2020-12-22 16:03:10,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:03:10,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:03:10,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843187010] [2020-12-22 16:03:10,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:03:10,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:03:10,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:03:10,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:03:10,043 INFO L87 Difference]: Start difference. First operand 168989 states and 199199 transitions. Second operand 4 states. [2020-12-22 16:03:15,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:03:15,820 INFO L93 Difference]: Finished difference Result 168989 states and 199199 transitions. [2020-12-22 16:03:15,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:03:15,821 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 78 [2020-12-22 16:03:15,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:03:16,125 INFO L225 Difference]: With dead ends: 168989 [2020-12-22 16:03:16,125 INFO L226 Difference]: Without dead ends: 168985 [2020-12-22 16:03:16,176 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 16:03:16,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168985 states. [2020-12-22 16:03:21,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168985 to 168985. [2020-12-22 16:03:21,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168985 states. [2020-12-22 16:03:22,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168985 states to 168985 states and 199195 transitions. [2020-12-22 16:03:22,460 INFO L78 Accepts]: Start accepts. Automaton has 168985 states and 199195 transitions. Word has length 78 [2020-12-22 16:03:22,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:03:22,460 INFO L481 AbstractCegarLoop]: Abstraction has 168985 states and 199195 transitions. [2020-12-22 16:03:22,460 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:03:22,460 INFO L276 IsEmpty]: Start isEmpty. Operand 168985 states and 199195 transitions. [2020-12-22 16:03:22,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 16:03:22,463 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:03:22,463 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 16:03:22,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 16:03:22,473 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:03:22,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:03:22,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1096188270, now seen corresponding path program 1 times [2020-12-22 16:03:22,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:03:22,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29605401] [2020-12-22 16:03:22,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:03:22,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:03:22,792 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 16:03:22,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29605401] [2020-12-22 16:03:22,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:03:22,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:03:22,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278619669] [2020-12-22 16:03:22,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:03:22,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:03:22,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:03:22,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:03:22,795 INFO L87 Difference]: Start difference. First operand 168985 states and 199195 transitions. Second operand 4 states. [2020-12-22 16:03:28,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:03:28,089 INFO L93 Difference]: Finished difference Result 168985 states and 199195 transitions. [2020-12-22 16:03:28,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:03:28,090 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 80 [2020-12-22 16:03:28,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:03:28,384 INFO L225 Difference]: With dead ends: 168985 [2020-12-22 16:03:28,385 INFO L226 Difference]: Without dead ends: 168981 [2020-12-22 16:03:28,444 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 16:03:28,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168981 states. [2020-12-22 16:03:34,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168981 to 168981. [2020-12-22 16:03:34,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168981 states. [2020-12-22 16:03:34,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168981 states to 168981 states and 199191 transitions. [2020-12-22 16:03:34,828 INFO L78 Accepts]: Start accepts. Automaton has 168981 states and 199191 transitions. Word has length 80 [2020-12-22 16:03:34,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:03:34,828 INFO L481 AbstractCegarLoop]: Abstraction has 168981 states and 199191 transitions. [2020-12-22 16:03:34,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:03:34,829 INFO L276 IsEmpty]: Start isEmpty. Operand 168981 states and 199191 transitions. [2020-12-22 16:03:34,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-22 16:03:34,830 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:03:34,830 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-12-22 16:03:34,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 16:03:34,831 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr28ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr30ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:03:34,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:03:34,831 INFO L82 PathProgramCache]: Analyzing trace with hash -1169797355, now seen corresponding path program 1 times [2020-12-22 16:03:34,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:03:34,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906143004] [2020-12-22 16:03:34,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:03:35,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:03:35,491 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-12-22 16:03:35,491 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906143004] [2020-12-22 16:03:35,491 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:03:35,491 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:03:35,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508563558] [2020-12-22 16:03:35,492 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:03:35,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:03:35,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:03:35,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:03:35,494 INFO L87 Difference]: Start difference. First operand 168981 states and 199191 transitions. Second operand 4 states.