/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-icplus-ipg.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 16:00:46,877 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 16:00:46,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 16:00:46,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 16:00:46,914 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 16:00:46,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 16:00:46,918 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 16:00:46,920 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 16:00:46,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 16:00:46,923 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 16:00:46,925 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 16:00:46,926 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 16:00:46,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 16:00:46,929 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 16:00:46,930 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 16:00:46,937 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 16:00:46,938 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 16:00:46,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 16:00:46,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 16:00:46,945 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 16:00:46,947 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 16:00:46,948 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 16:00:46,950 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 16:00:46,951 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 16:00:46,954 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 16:00:46,954 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 16:00:46,954 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 16:00:46,956 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 16:00:46,956 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 16:00:46,957 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 16:00:46,958 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 16:00:46,958 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 16:00:46,959 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 16:00:46,960 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 16:00:46,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 16:00:46,976 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 16:00:46,980 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 16:00:46,980 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 16:00:46,981 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 16:00:46,981 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 16:00:46,982 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 16:00:46,986 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 16:00:47,037 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 16:00:47,037 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 16:00:47,039 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 16:00:47,040 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 16:00:47,041 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 16:00:47,042 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 16:00:47,042 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 16:00:47,042 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 16:00:47,042 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 16:00:47,042 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 16:00:47,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 16:00:47,043 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 16:00:47,044 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 16:00:47,044 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 16:00:47,044 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 16:00:47,044 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 16:00:47,045 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 16:00:47,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 16:00:47,045 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 16:00:47,045 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 16:00:47,045 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 16:00:47,046 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 16:00:47,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 16:00:47,046 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 16:00:47,046 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 16:00:47,046 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 16:00:47,458 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 16:00:47,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 16:00:47,485 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 16:00:47,487 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 16:00:47,487 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 16:00:47,488 INFO L432 ainManager$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-icplus-ipg.cil.i [2020-12-22 16:00:47,575 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d77965904/18d51b34ccbf4f31bedf491dcd4b3615/FLAGcfc6a39d1 [2020-12-22 16:00:48,670 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 16:00:48,671 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-icplus-ipg.cil.i [2020-12-22 16:00:48,728 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d77965904/18d51b34ccbf4f31bedf491dcd4b3615/FLAGcfc6a39d1 [2020-12-22 16:00:49,048 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d77965904/18d51b34ccbf4f31bedf491dcd4b3615 [2020-12-22 16:00:49,052 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 16:00:49,057 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 16:00:49,059 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 16:00:49,059 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 16:00:49,063 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 16:00:49,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:00:49" (1/1) ... [2020-12-22 16:00:49,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59615798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:49, skipping insertion in model container [2020-12-22 16:00:49,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 04:00:49" (1/1) ... [2020-12-22 16:00:49,074 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 16:00:49,258 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 16:00:51,992 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-icplus-ipg.cil.i[315136,315149] [2020-12-22 16:00:51,997 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-icplus-ipg.cil.i[315305,315318] [2020-12-22 16:00:51,998 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-icplus-ipg.cil.i[315472,315485] [2020-12-22 16:00:51,998 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-icplus-ipg.cil.i[315640,315653] [2020-12-22 16:00:52,084 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 16:00:52,150 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 16:00:52,569 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-icplus-ipg.cil.i[315136,315149] [2020-12-22 16:00:52,570 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-icplus-ipg.cil.i[315305,315318] [2020-12-22 16:00:52,571 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-icplus-ipg.cil.i[315472,315485] [2020-12-22 16:00:52,571 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-icplus-ipg.cil.i[315640,315653] [2020-12-22 16:00:52,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 16:00:53,498 INFO L208 MainTranslator]: Completed translation [2020-12-22 16:00:53,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:53 WrapperNode [2020-12-22 16:00:53,499 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 16:00:53,501 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 16:00:53,501 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 16:00:53,501 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 16:00:53,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:53" (1/1) ... [2020-12-22 16:00:53,616 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:53" (1/1) ... [2020-12-22 16:00:54,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 16:00:54,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 16:00:54,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 16:00:54,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 16:00:54,327 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:53" (1/1) ... [2020-12-22 16:00:54,327 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:53" (1/1) ... [2020-12-22 16:00:54,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:53" (1/1) ... [2020-12-22 16:00:54,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:53" (1/1) ... [2020-12-22 16:00:55,167 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:53" (1/1) ... [2020-12-22 16:00:55,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:53" (1/1) ... [2020-12-22 16:00:55,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:53" (1/1) ... [2020-12-22 16:00:55,524 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 16:00:55,526 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 16:00:55,526 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 16:00:55,526 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 16:00:55,527 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:53" (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 16:00:55,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 16:00:55,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 16:00:55,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 16:00:55,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 16:00:55,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 16:00:55,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 16:00:55,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 16:00:55,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 16:00:55,621 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 16:00:55,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 16:00:55,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 16:00:55,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 16:00:55,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 16:00:55,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 16:00:55,622 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2020-12-22 16:00:55,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 16:01:10,205 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#2: ldv_switch_1_#res := 0; [2020-12-22 16:01:10,206 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break#3: ldv_switch_1_#res := 0; [2020-12-22 16:01:10,206 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2020-12-22 16:01:10,207 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2020-12-22 16:01:10,208 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2020-12-22 16:01:10,209 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2020-12-22 16:01:10,257 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 16:01:10,258 INFO L299 CfgBuilder]: Removed 5020 assume(true) statements. [2020-12-22 16:01:10,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:01:10 BoogieIcfgContainer [2020-12-22 16:01:10,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 16:01:10,265 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 16:01:10,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 16:01:10,269 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 16:01:10,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 04:00:49" (1/3) ... [2020-12-22 16:01:10,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6755bcf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:01:10, skipping insertion in model container [2020-12-22 16:01:10,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 04:00:53" (2/3) ... [2020-12-22 16:01:10,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6755bcf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 04:01:10, skipping insertion in model container [2020-12-22 16:01:10,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 04:01:10" (3/3) ... [2020-12-22 16:01:10,273 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-icplus-ipg.cil.i [2020-12-22 16:01:10,279 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 16:01:10,286 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 44 error locations. [2020-12-22 16:01:10,305 INFO L253 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2020-12-22 16:01:10,368 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 16:01:10,368 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 16:01:10,368 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 16:01:10,368 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 16:01:10,369 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 16:01:10,369 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 16:01:10,369 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 16:01:10,369 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 16:01:10,445 INFO L276 IsEmpty]: Start isEmpty. Operand 4190 states. [2020-12-22 16:01:10,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-22 16:01:10,458 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:01:10,459 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] [2020-12-22 16:01:10,459 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr37ASSERT_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.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:01:10,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:01:10,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1114883933, now seen corresponding path program 1 times [2020-12-22 16:01:10,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:01:10,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374705466] [2020-12-22 16:01:10,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:01:10,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:01:11,144 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 16:01:11,144 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374705466] [2020-12-22 16:01:11,146 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:01:11,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:01:11,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783067938] [2020-12-22 16:01:11,152 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:01:11,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:01:11,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:01:11,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:01:11,175 INFO L87 Difference]: Start difference. First operand 4190 states. Second operand 3 states. [2020-12-22 16:01:12,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:01:12,596 INFO L93 Difference]: Finished difference Result 12072 states and 15622 transitions. [2020-12-22 16:01:12,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:01:12,598 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2020-12-22 16:01:12,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:01:12,669 INFO L225 Difference]: With dead ends: 12072 [2020-12-22 16:01:12,669 INFO L226 Difference]: Without dead ends: 7724 [2020-12-22 16:01:12,686 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 16:01:12,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7724 states. [2020-12-22 16:01:13,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7724 to 7708. [2020-12-22 16:01:13,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7708 states. [2020-12-22 16:01:13,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7708 states to 7708 states and 9595 transitions. [2020-12-22 16:01:13,056 INFO L78 Accepts]: Start accepts. Automaton has 7708 states and 9595 transitions. Word has length 42 [2020-12-22 16:01:13,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:01:13,057 INFO L481 AbstractCegarLoop]: Abstraction has 7708 states and 9595 transitions. [2020-12-22 16:01:13,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:01:13,057 INFO L276 IsEmpty]: Start isEmpty. Operand 7708 states and 9595 transitions. [2020-12-22 16:01:13,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-12-22 16:01:13,067 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:01:13,067 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] [2020-12-22 16:01:13,067 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 16:01:13,068 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr37ASSERT_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.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:01:13,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:01:13,071 INFO L82 PathProgramCache]: Analyzing trace with hash -1435015324, now seen corresponding path program 1 times [2020-12-22 16:01:13,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:01:13,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961813873] [2020-12-22 16:01:13,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:01:13,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:01:13,309 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 16:01:13,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961813873] [2020-12-22 16:01:13,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:01:13,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:01:13,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946353307] [2020-12-22 16:01:13,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:01:13,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:01:13,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:01:13,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:01:13,315 INFO L87 Difference]: Start difference. First operand 7708 states and 9595 transitions. Second operand 3 states. [2020-12-22 16:01:14,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:01:14,223 INFO L93 Difference]: Finished difference Result 21388 states and 26599 transitions. [2020-12-22 16:01:14,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:01:14,223 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2020-12-22 16:01:14,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:01:14,288 INFO L225 Difference]: With dead ends: 21388 [2020-12-22 16:01:14,288 INFO L226 Difference]: Without dead ends: 13748 [2020-12-22 16:01:14,307 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 16:01:14,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13748 states. [2020-12-22 16:01:14,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13748 to 11656. [2020-12-22 16:01:14,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11656 states. [2020-12-22 16:01:14,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11656 states to 11656 states and 14523 transitions. [2020-12-22 16:01:14,894 INFO L78 Accepts]: Start accepts. Automaton has 11656 states and 14523 transitions. Word has length 42 [2020-12-22 16:01:14,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:01:14,896 INFO L481 AbstractCegarLoop]: Abstraction has 11656 states and 14523 transitions. [2020-12-22 16:01:14,897 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:01:14,897 INFO L276 IsEmpty]: Start isEmpty. Operand 11656 states and 14523 transitions. [2020-12-22 16:01:14,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-12-22 16:01:14,902 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:01:14,902 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] [2020-12-22 16:01:14,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 16:01:14,903 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr37ASSERT_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.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:01:14,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:01:14,905 INFO L82 PathProgramCache]: Analyzing trace with hash -234934328, now seen corresponding path program 1 times [2020-12-22 16:01:14,908 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:01:14,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519914880] [2020-12-22 16:01:14,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:01:15,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:01:15,290 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 16:01:15,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519914880] [2020-12-22 16:01:15,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:01:15,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:01:15,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728165508] [2020-12-22 16:01:15,291 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:01:15,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:01:15,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:01:15,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:01:15,292 INFO L87 Difference]: Start difference. First operand 11656 states and 14523 transitions. Second operand 3 states. [2020-12-22 16:01:16,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:01:16,158 INFO L93 Difference]: Finished difference Result 21927 states and 27451 transitions. [2020-12-22 16:01:16,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:01:16,159 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2020-12-22 16:01:16,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:01:16,224 INFO L225 Difference]: With dead ends: 21927 [2020-12-22 16:01:16,225 INFO L226 Difference]: Without dead ends: 10339 [2020-12-22 16:01:16,245 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 16:01:16,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10339 states. [2020-12-22 16:01:16,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10339 to 10257. [2020-12-22 16:01:16,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10257 states. [2020-12-22 16:01:16,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10257 states to 10257 states and 12865 transitions. [2020-12-22 16:01:16,666 INFO L78 Accepts]: Start accepts. Automaton has 10257 states and 12865 transitions. Word has length 57 [2020-12-22 16:01:16,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:01:16,666 INFO L481 AbstractCegarLoop]: Abstraction has 10257 states and 12865 transitions. [2020-12-22 16:01:16,667 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:01:16,667 INFO L276 IsEmpty]: Start isEmpty. Operand 10257 states and 12865 transitions. [2020-12-22 16:01:16,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-12-22 16:01:16,668 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:01:16,669 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:01:16,669 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 16:01:16,669 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr37ASSERT_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.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:01:16,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:01:16,670 INFO L82 PathProgramCache]: Analyzing trace with hash -465593213, now seen corresponding path program 1 times [2020-12-22 16:01:16,670 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:01:16,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838991070] [2020-12-22 16:01:16,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:01:16,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:01:16,913 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 16:01:16,914 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838991070] [2020-12-22 16:01:16,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:01:16,914 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:01:16,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760417371] [2020-12-22 16:01:16,916 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:01:16,916 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:01:16,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:01:16,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:01:16,918 INFO L87 Difference]: Start difference. First operand 10257 states and 12865 transitions. Second operand 3 states. [2020-12-22 16:01:19,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:01:19,065 INFO L93 Difference]: Finished difference Result 24003 states and 30042 transitions. [2020-12-22 16:01:19,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:01:19,066 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-12-22 16:01:19,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:01:19,098 INFO L225 Difference]: With dead ends: 24003 [2020-12-22 16:01:19,098 INFO L226 Difference]: Without dead ends: 13814 [2020-12-22 16:01:19,119 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 16:01:19,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13814 states. [2020-12-22 16:01:19,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13814 to 13369. [2020-12-22 16:01:19,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13369 states. [2020-12-22 16:01:19,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13369 states to 13369 states and 16726 transitions. [2020-12-22 16:01:19,450 INFO L78 Accepts]: Start accepts. Automaton has 13369 states and 16726 transitions. Word has length 61 [2020-12-22 16:01:19,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:01:19,451 INFO L481 AbstractCegarLoop]: Abstraction has 13369 states and 16726 transitions. [2020-12-22 16:01:19,451 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:01:19,453 INFO L276 IsEmpty]: Start isEmpty. Operand 13369 states and 16726 transitions. [2020-12-22 16:01:19,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-12-22 16:01:19,455 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:01:19,456 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:01:19,456 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 16:01:19,457 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr37ASSERT_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.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:01:19,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:01:19,457 INFO L82 PathProgramCache]: Analyzing trace with hash 451869666, now seen corresponding path program 1 times [2020-12-22 16:01:19,458 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:01:19,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253328257] [2020-12-22 16:01:19,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:01:19,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:01:19,668 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 16:01:19,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253328257] [2020-12-22 16:01:19,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:01:19,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:01:19,670 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942729201] [2020-12-22 16:01:19,671 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:01:19,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:01:19,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:01:19,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:01:19,673 INFO L87 Difference]: Start difference. First operand 13369 states and 16726 transitions. Second operand 3 states. [2020-12-22 16:01:21,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:01:21,275 INFO L93 Difference]: Finished difference Result 39403 states and 49397 transitions. [2020-12-22 16:01:21,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:01:21,276 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-12-22 16:01:21,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:01:21,340 INFO L225 Difference]: With dead ends: 39403 [2020-12-22 16:01:21,340 INFO L226 Difference]: Without dead ends: 26165 [2020-12-22 16:01:21,368 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 16:01:21,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26165 states. [2020-12-22 16:01:22,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26165 to 26149. [2020-12-22 16:01:22,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26149 states. [2020-12-22 16:01:22,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26149 states to 26149 states and 32774 transitions. [2020-12-22 16:01:22,132 INFO L78 Accepts]: Start accepts. Automaton has 26149 states and 32774 transitions. Word has length 71 [2020-12-22 16:01:22,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:01:22,133 INFO L481 AbstractCegarLoop]: Abstraction has 26149 states and 32774 transitions. [2020-12-22 16:01:22,133 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:01:22,133 INFO L276 IsEmpty]: Start isEmpty. Operand 26149 states and 32774 transitions. [2020-12-22 16:01:22,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-12-22 16:01:22,135 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:01:22,135 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:01:22,135 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 16:01:22,136 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr37ASSERT_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.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:01:22,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:01:22,136 INFO L82 PathProgramCache]: Analyzing trace with hash -827994012, now seen corresponding path program 1 times [2020-12-22 16:01:22,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:01:22,137 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010976331] [2020-12-22 16:01:22,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:01:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:01:22,468 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 16:01:22,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010976331] [2020-12-22 16:01:22,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:01:22,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:01:22,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338965729] [2020-12-22 16:01:22,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:01:22,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:01:22,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:01:22,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:01:22,476 INFO L87 Difference]: Start difference. First operand 26149 states and 32774 transitions. Second operand 3 states. [2020-12-22 16:01:23,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:01:23,614 INFO L93 Difference]: Finished difference Result 64971 states and 81509 transitions. [2020-12-22 16:01:23,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:01:23,615 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2020-12-22 16:01:23,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:01:23,710 INFO L225 Difference]: With dead ends: 64971 [2020-12-22 16:01:23,711 INFO L226 Difference]: Without dead ends: 38953 [2020-12-22 16:01:23,753 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 16:01:23,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38953 states. [2020-12-22 16:01:24,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38953 to 38888. [2020-12-22 16:01:24,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38888 states. [2020-12-22 16:01:25,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38888 states to 38888 states and 48781 transitions. [2020-12-22 16:01:25,044 INFO L78 Accepts]: Start accepts. Automaton has 38888 states and 48781 transitions. Word has length 71 [2020-12-22 16:01:25,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:01:25,046 INFO L481 AbstractCegarLoop]: Abstraction has 38888 states and 48781 transitions. [2020-12-22 16:01:25,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:01:25,046 INFO L276 IsEmpty]: Start isEmpty. Operand 38888 states and 48781 transitions. [2020-12-22 16:01:25,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-12-22 16:01:25,048 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:01:25,048 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:01:25,048 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 16:01:25,049 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr37ASSERT_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.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:01:25,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:01:25,050 INFO L82 PathProgramCache]: Analyzing trace with hash 1803764864, now seen corresponding path program 1 times [2020-12-22 16:01:25,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:01:25,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618366004] [2020-12-22 16:01:25,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:01:25,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:01:25,326 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-22 16:01:25,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618366004] [2020-12-22 16:01:25,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:01:25,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:01:25,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081740197] [2020-12-22 16:01:25,329 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:01:25,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:01:25,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:01:25,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:01:25,330 INFO L87 Difference]: Start difference. First operand 38888 states and 48781 transitions. Second operand 4 states. [2020-12-22 16:01:26,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:01:26,654 INFO L93 Difference]: Finished difference Result 38888 states and 48781 transitions. [2020-12-22 16:01:26,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:01:26,655 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 72 [2020-12-22 16:01:26,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:01:26,710 INFO L225 Difference]: With dead ends: 38888 [2020-12-22 16:01:26,710 INFO L226 Difference]: Without dead ends: 38882 [2020-12-22 16:01:26,720 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 16:01:26,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38882 states. [2020-12-22 16:01:27,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38882 to 38882. [2020-12-22 16:01:27,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38882 states. [2020-12-22 16:01:27,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38882 states to 38882 states and 48775 transitions. [2020-12-22 16:01:27,889 INFO L78 Accepts]: Start accepts. Automaton has 38882 states and 48775 transitions. Word has length 72 [2020-12-22 16:01:27,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:01:27,889 INFO L481 AbstractCegarLoop]: Abstraction has 38882 states and 48775 transitions. [2020-12-22 16:01:27,889 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:01:27,889 INFO L276 IsEmpty]: Start isEmpty. Operand 38882 states and 48775 transitions. [2020-12-22 16:01:27,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-22 16:01:27,891 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:01:27,891 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:01:27,891 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 16:01:27,891 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr37ASSERT_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.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:01:27,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:01:27,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1748607325, now seen corresponding path program 1 times [2020-12-22 16:01:27,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:01:27,893 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781257576] [2020-12-22 16:01:27,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:01:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:01:28,121 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-22 16:01:28,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781257576] [2020-12-22 16:01:28,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:01:28,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:01:28,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052367463] [2020-12-22 16:01:28,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:01:28,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:01:28,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:01:28,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:01:28,124 INFO L87 Difference]: Start difference. First operand 38882 states and 48775 transitions. Second operand 4 states. [2020-12-22 16:01:29,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:01:29,058 INFO L93 Difference]: Finished difference Result 38882 states and 48775 transitions. [2020-12-22 16:01:29,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:01:29,059 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 74 [2020-12-22 16:01:29,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:01:29,118 INFO L225 Difference]: With dead ends: 38882 [2020-12-22 16:01:29,118 INFO L226 Difference]: Without dead ends: 38876 [2020-12-22 16:01:29,130 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 16:01:29,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38876 states. [2020-12-22 16:01:30,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38876 to 38876. [2020-12-22 16:01:30,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38876 states. [2020-12-22 16:01:30,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38876 states to 38876 states and 48769 transitions. [2020-12-22 16:01:30,227 INFO L78 Accepts]: Start accepts. Automaton has 38876 states and 48769 transitions. Word has length 74 [2020-12-22 16:01:30,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:01:30,227 INFO L481 AbstractCegarLoop]: Abstraction has 38876 states and 48769 transitions. [2020-12-22 16:01:30,227 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:01:30,227 INFO L276 IsEmpty]: Start isEmpty. Operand 38876 states and 48769 transitions. [2020-12-22 16:01:30,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-22 16:01:30,229 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:01:30,229 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:01:30,229 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 16:01:30,230 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr37ASSERT_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.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:01:30,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:01:30,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1079280314, now seen corresponding path program 1 times [2020-12-22 16:01:30,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:01:30,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845299491] [2020-12-22 16:01:30,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:01:30,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:01:30,432 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-22 16:01:30,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845299491] [2020-12-22 16:01:30,432 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:01:30,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:01:30,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470801038] [2020-12-22 16:01:30,433 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:01:30,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:01:30,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:01:30,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:01:30,434 INFO L87 Difference]: Start difference. First operand 38876 states and 48769 transitions. Second operand 4 states. [2020-12-22 16:01:31,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:01:31,937 INFO L93 Difference]: Finished difference Result 38876 states and 48769 transitions. [2020-12-22 16:01:31,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:01:31,938 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 76 [2020-12-22 16:01:31,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:01:31,999 INFO L225 Difference]: With dead ends: 38876 [2020-12-22 16:01:32,000 INFO L226 Difference]: Without dead ends: 38870 [2020-12-22 16:01:32,012 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 16:01:32,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38870 states. [2020-12-22 16:01:33,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38870 to 38870. [2020-12-22 16:01:33,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38870 states. [2020-12-22 16:01:33,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38870 states to 38870 states and 48763 transitions. [2020-12-22 16:01:33,118 INFO L78 Accepts]: Start accepts. Automaton has 38870 states and 48763 transitions. Word has length 76 [2020-12-22 16:01:33,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:01:33,118 INFO L481 AbstractCegarLoop]: Abstraction has 38870 states and 48763 transitions. [2020-12-22 16:01:33,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:01:33,119 INFO L276 IsEmpty]: Start isEmpty. Operand 38870 states and 48763 transitions. [2020-12-22 16:01:33,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-12-22 16:01:33,123 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:01:33,124 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:01:33,124 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 16:01:33,125 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr37ASSERT_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.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:01:33,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:01:33,126 INFO L82 PathProgramCache]: Analyzing trace with hash -2101116823, now seen corresponding path program 1 times [2020-12-22 16:01:33,127 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:01:33,127 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996752349] [2020-12-22 16:01:33,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:01:33,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:01:33,362 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-22 16:01:33,363 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996752349] [2020-12-22 16:01:33,363 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:01:33,363 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:01:33,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66740527] [2020-12-22 16:01:33,364 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:01:33,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:01:33,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:01:33,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:01:33,367 INFO L87 Difference]: Start difference. First operand 38870 states and 48763 transitions. Second operand 4 states. [2020-12-22 16:01:34,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:01:34,576 INFO L93 Difference]: Finished difference Result 38870 states and 48763 transitions. [2020-12-22 16:01:34,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:01:34,577 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 78 [2020-12-22 16:01:34,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:01:34,634 INFO L225 Difference]: With dead ends: 38870 [2020-12-22 16:01:34,634 INFO L226 Difference]: Without dead ends: 38864 [2020-12-22 16:01:34,643 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 16:01:34,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38864 states. [2020-12-22 16:01:35,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38864 to 38864. [2020-12-22 16:01:35,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38864 states. [2020-12-22 16:01:35,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38864 states to 38864 states and 48757 transitions. [2020-12-22 16:01:35,767 INFO L78 Accepts]: Start accepts. Automaton has 38864 states and 48757 transitions. Word has length 78 [2020-12-22 16:01:35,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:01:35,767 INFO L481 AbstractCegarLoop]: Abstraction has 38864 states and 48757 transitions. [2020-12-22 16:01:35,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:01:35,768 INFO L276 IsEmpty]: Start isEmpty. Operand 38864 states and 48757 transitions. [2020-12-22 16:01:35,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-12-22 16:01:35,769 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:01:35,770 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:01:35,770 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 16:01:35,770 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr37ASSERT_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.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:01:35,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:01:35,771 INFO L82 PathProgramCache]: Analyzing trace with hash -538490868, now seen corresponding path program 1 times [2020-12-22 16:01:35,771 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:01:35,771 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920040347] [2020-12-22 16:01:35,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:01:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:01:35,960 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-22 16:01:35,961 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920040347] [2020-12-22 16:01:35,961 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:01:35,961 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:01:35,961 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736328741] [2020-12-22 16:01:35,962 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:01:35,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:01:35,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:01:35,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:01:35,963 INFO L87 Difference]: Start difference. First operand 38864 states and 48757 transitions. Second operand 4 states. [2020-12-22 16:01:37,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:01:37,092 INFO L93 Difference]: Finished difference Result 38864 states and 48757 transitions. [2020-12-22 16:01:37,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:01:37,093 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 80 [2020-12-22 16:01:37,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:01:37,140 INFO L225 Difference]: With dead ends: 38864 [2020-12-22 16:01:37,140 INFO L226 Difference]: Without dead ends: 38858 [2020-12-22 16:01:37,154 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 16:01:37,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38858 states. [2020-12-22 16:01:38,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38858 to 38858. [2020-12-22 16:01:38,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38858 states. [2020-12-22 16:01:38,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38858 states to 38858 states and 48751 transitions. [2020-12-22 16:01:38,688 INFO L78 Accepts]: Start accepts. Automaton has 38858 states and 48751 transitions. Word has length 80 [2020-12-22 16:01:38,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:01:38,689 INFO L481 AbstractCegarLoop]: Abstraction has 38858 states and 48751 transitions. [2020-12-22 16:01:38,689 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:01:38,689 INFO L276 IsEmpty]: Start isEmpty. Operand 38858 states and 48751 transitions. [2020-12-22 16:01:38,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-22 16:01:38,692 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:01:38,692 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:01:38,692 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 16:01:38,692 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr37ASSERT_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.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:01:38,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:01:38,693 INFO L82 PathProgramCache]: Analyzing trace with hash -2093501393, now seen corresponding path program 1 times [2020-12-22 16:01:38,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:01:38,693 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452366568] [2020-12-22 16:01:38,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:01:38,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:01:38,894 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-22 16:01:38,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452366568] [2020-12-22 16:01:38,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:01:38,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:01:38,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848760051] [2020-12-22 16:01:38,896 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:01:38,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:01:38,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:01:38,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:01:38,897 INFO L87 Difference]: Start difference. First operand 38858 states and 48751 transitions. Second operand 4 states. [2020-12-22 16:01:40,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:01:40,319 INFO L93 Difference]: Finished difference Result 38858 states and 48751 transitions. [2020-12-22 16:01:40,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:01:40,320 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 82 [2020-12-22 16:01:40,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:01:40,368 INFO L225 Difference]: With dead ends: 38858 [2020-12-22 16:01:40,368 INFO L226 Difference]: Without dead ends: 38852 [2020-12-22 16:01:40,378 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 16:01:40,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38852 states. [2020-12-22 16:01:41,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38852 to 38852. [2020-12-22 16:01:41,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38852 states. [2020-12-22 16:01:41,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38852 states to 38852 states and 48745 transitions. [2020-12-22 16:01:41,782 INFO L78 Accepts]: Start accepts. Automaton has 38852 states and 48745 transitions. Word has length 82 [2020-12-22 16:01:41,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:01:41,782 INFO L481 AbstractCegarLoop]: Abstraction has 38852 states and 48745 transitions. [2020-12-22 16:01:41,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:01:41,783 INFO L276 IsEmpty]: Start isEmpty. Operand 38852 states and 48745 transitions. [2020-12-22 16:01:41,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-22 16:01:41,785 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:01:41,785 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:01:41,785 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 16:01:41,786 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr37ASSERT_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.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:01:41,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:01:41,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1809996590, now seen corresponding path program 1 times [2020-12-22 16:01:41,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:01:41,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393390603] [2020-12-22 16:01:41,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:01:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:01:41,994 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-22 16:01:41,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393390603] [2020-12-22 16:01:41,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:01:41,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:01:41,996 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463652239] [2020-12-22 16:01:41,996 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:01:41,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:01:41,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:01:41,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:01:41,997 INFO L87 Difference]: Start difference. First operand 38852 states and 48745 transitions. Second operand 4 states. [2020-12-22 16:01:43,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:01:43,225 INFO L93 Difference]: Finished difference Result 38852 states and 48745 transitions. [2020-12-22 16:01:43,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:01:43,226 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 84 [2020-12-22 16:01:43,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:01:43,265 INFO L225 Difference]: With dead ends: 38852 [2020-12-22 16:01:43,265 INFO L226 Difference]: Without dead ends: 38846 [2020-12-22 16:01:43,276 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 16:01:43,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38846 states. [2020-12-22 16:01:44,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38846 to 38846. [2020-12-22 16:01:44,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38846 states. [2020-12-22 16:01:44,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38846 states to 38846 states and 48739 transitions. [2020-12-22 16:01:44,716 INFO L78 Accepts]: Start accepts. Automaton has 38846 states and 48739 transitions. Word has length 84 [2020-12-22 16:01:44,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:01:44,716 INFO L481 AbstractCegarLoop]: Abstraction has 38846 states and 48739 transitions. [2020-12-22 16:01:44,716 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:01:44,716 INFO L276 IsEmpty]: Start isEmpty. Operand 38846 states and 48739 transitions. [2020-12-22 16:01:44,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-12-22 16:01:44,720 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:01:44,720 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:01:44,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 16:01:44,721 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr37ASSERT_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.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:01:44,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:01:44,721 INFO L82 PathProgramCache]: Analyzing trace with hash 55179765, now seen corresponding path program 1 times [2020-12-22 16:01:44,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:01:44,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743880150] [2020-12-22 16:01:44,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:01:44,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:01:44,905 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-22 16:01:44,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743880150] [2020-12-22 16:01:44,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:01:44,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:01:44,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661762971] [2020-12-22 16:01:44,906 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:01:44,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:01:44,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:01:44,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:01:44,907 INFO L87 Difference]: Start difference. First operand 38846 states and 48739 transitions. Second operand 4 states. [2020-12-22 16:01:46,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:01:46,817 INFO L93 Difference]: Finished difference Result 38846 states and 48739 transitions. [2020-12-22 16:01:46,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:01:46,817 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 86 [2020-12-22 16:01:46,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:01:46,854 INFO L225 Difference]: With dead ends: 38846 [2020-12-22 16:01:46,855 INFO L226 Difference]: Without dead ends: 38840 [2020-12-22 16:01:46,863 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 16:01:46,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38840 states. [2020-12-22 16:01:48,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38840 to 38840. [2020-12-22 16:01:48,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38840 states. [2020-12-22 16:01:48,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38840 states to 38840 states and 48733 transitions. [2020-12-22 16:01:48,204 INFO L78 Accepts]: Start accepts. Automaton has 38840 states and 48733 transitions. Word has length 86 [2020-12-22 16:01:48,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:01:48,205 INFO L481 AbstractCegarLoop]: Abstraction has 38840 states and 48733 transitions. [2020-12-22 16:01:48,205 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:01:48,205 INFO L276 IsEmpty]: Start isEmpty. Operand 38840 states and 48733 transitions. [2020-12-22 16:01:48,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-12-22 16:01:48,209 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:01:48,209 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:01:48,209 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 16:01:48,209 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr37ASSERT_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.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:01:48,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:01:48,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1488294808, now seen corresponding path program 1 times [2020-12-22 16:01:48,210 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:01:48,210 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694142769] [2020-12-22 16:01:48,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:01:48,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:01:48,400 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-22 16:01:48,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694142769] [2020-12-22 16:01:48,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:01:48,401 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:01:48,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015423102] [2020-12-22 16:01:48,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:01:48,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:01:48,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:01:48,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:01:48,403 INFO L87 Difference]: Start difference. First operand 38840 states and 48733 transitions. Second operand 4 states. [2020-12-22 16:01:50,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:01:50,069 INFO L93 Difference]: Finished difference Result 38840 states and 48733 transitions. [2020-12-22 16:01:50,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:01:50,069 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2020-12-22 16:01:50,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:01:50,109 INFO L225 Difference]: With dead ends: 38840 [2020-12-22 16:01:50,109 INFO L226 Difference]: Without dead ends: 38834 [2020-12-22 16:01:50,119 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 16:01:50,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38834 states. [2020-12-22 16:01:51,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38834 to 38834. [2020-12-22 16:01:51,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38834 states. [2020-12-22 16:01:51,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38834 states to 38834 states and 48727 transitions. [2020-12-22 16:01:51,796 INFO L78 Accepts]: Start accepts. Automaton has 38834 states and 48727 transitions. Word has length 88 [2020-12-22 16:01:51,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:01:51,796 INFO L481 AbstractCegarLoop]: Abstraction has 38834 states and 48727 transitions. [2020-12-22 16:01:51,797 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:01:51,797 INFO L276 IsEmpty]: Start isEmpty. Operand 38834 states and 48727 transitions. [2020-12-22 16:01:51,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-12-22 16:01:51,800 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:01:51,801 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:01:51,801 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 16:01:51,801 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr37ASSERT_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.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:01:51,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:01:51,802 INFO L82 PathProgramCache]: Analyzing trace with hash 2057427073, now seen corresponding path program 1 times [2020-12-22 16:01:51,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:01:51,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14042444] [2020-12-22 16:01:51,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:01:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:01:51,992 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 16:01:51,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14042444] [2020-12-22 16:01:51,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:01:51,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:01:51,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002369750] [2020-12-22 16:01:51,998 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:01:51,998 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:01:51,998 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:01:51,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:01:51,999 INFO L87 Difference]: Start difference. First operand 38834 states and 48727 transitions. Second operand 3 states. [2020-12-22 16:01:54,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:01:54,892 INFO L93 Difference]: Finished difference Result 86619 states and 109040 transitions. [2020-12-22 16:01:54,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:01:54,893 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 89 [2020-12-22 16:01:54,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:01:54,945 INFO L225 Difference]: With dead ends: 86619 [2020-12-22 16:01:54,946 INFO L226 Difference]: Without dead ends: 47916 [2020-12-22 16:01:54,978 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 16:01:55,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47916 states. [2020-12-22 16:01:57,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47916 to 47837. [2020-12-22 16:01:57,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47837 states. [2020-12-22 16:01:57,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47837 states to 47837 states and 60212 transitions. [2020-12-22 16:01:57,066 INFO L78 Accepts]: Start accepts. Automaton has 47837 states and 60212 transitions. Word has length 89 [2020-12-22 16:01:57,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:01:57,066 INFO L481 AbstractCegarLoop]: Abstraction has 47837 states and 60212 transitions. [2020-12-22 16:01:57,066 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:01:57,066 INFO L276 IsEmpty]: Start isEmpty. Operand 47837 states and 60212 transitions. [2020-12-22 16:01:57,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-22 16:01:57,068 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:01:57,068 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:01:57,068 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 16:01:57,068 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr37ASSERT_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.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:01:57,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:01:57,069 INFO L82 PathProgramCache]: Analyzing trace with hash 27349435, now seen corresponding path program 1 times [2020-12-22 16:01:57,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:01:57,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107930319] [2020-12-22 16:01:57,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:01:57,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:01:57,255 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-22 16:01:57,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107930319] [2020-12-22 16:01:57,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:01:57,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:01:57,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574831999] [2020-12-22 16:01:57,256 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:01:57,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:01:57,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:01:57,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:01:57,257 INFO L87 Difference]: Start difference. First operand 47837 states and 60212 transitions. Second operand 4 states. [2020-12-22 16:01:59,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:01:59,035 INFO L93 Difference]: Finished difference Result 47837 states and 60212 transitions. [2020-12-22 16:01:59,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:01:59,036 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 90 [2020-12-22 16:01:59,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:01:59,088 INFO L225 Difference]: With dead ends: 47837 [2020-12-22 16:01:59,088 INFO L226 Difference]: Without dead ends: 47831 [2020-12-22 16:01:59,101 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 16:01:59,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47831 states. [2020-12-22 16:02:01,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47831 to 47831. [2020-12-22 16:02:01,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47831 states. [2020-12-22 16:02:01,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47831 states to 47831 states and 60206 transitions. [2020-12-22 16:02:01,093 INFO L78 Accepts]: Start accepts. Automaton has 47831 states and 60206 transitions. Word has length 90 [2020-12-22 16:02:01,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:02:01,093 INFO L481 AbstractCegarLoop]: Abstraction has 47831 states and 60206 transitions. [2020-12-22 16:02:01,093 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:02:01,094 INFO L276 IsEmpty]: Start isEmpty. Operand 47831 states and 60206 transitions. [2020-12-22 16:02:01,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-12-22 16:02:01,095 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:02:01,096 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:02:01,096 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-22 16:02:01,096 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr37ASSERT_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.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:02:01,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:02:01,097 INFO L82 PathProgramCache]: Analyzing trace with hash 513152094, now seen corresponding path program 1 times [2020-12-22 16:02:01,097 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:02:01,097 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057680608] [2020-12-22 16:02:01,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:02:01,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:02:01,268 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-22 16:02:01,269 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057680608] [2020-12-22 16:02:01,269 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:02:01,269 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:02:01,269 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015751598] [2020-12-22 16:02:01,270 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:02:01,270 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:02:01,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:02:01,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:02:01,271 INFO L87 Difference]: Start difference. First operand 47831 states and 60206 transitions. Second operand 4 states. [2020-12-22 16:02:03,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:02:03,322 INFO L93 Difference]: Finished difference Result 47831 states and 60206 transitions. [2020-12-22 16:02:03,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:02:03,322 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 92 [2020-12-22 16:02:03,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:02:03,366 INFO L225 Difference]: With dead ends: 47831 [2020-12-22 16:02:03,366 INFO L226 Difference]: Without dead ends: 47825 [2020-12-22 16:02:03,375 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 16:02:03,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47825 states. [2020-12-22 16:02:05,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47825 to 47825. [2020-12-22 16:02:05,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47825 states. [2020-12-22 16:02:05,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47825 states to 47825 states and 60200 transitions. [2020-12-22 16:02:05,289 INFO L78 Accepts]: Start accepts. Automaton has 47825 states and 60200 transitions. Word has length 92 [2020-12-22 16:02:05,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:02:05,289 INFO L481 AbstractCegarLoop]: Abstraction has 47825 states and 60200 transitions. [2020-12-22 16:02:05,289 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:02:05,289 INFO L276 IsEmpty]: Start isEmpty. Operand 47825 states and 60200 transitions. [2020-12-22 16:02:05,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-12-22 16:02:05,291 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:02:05,291 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:02:05,291 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-22 16:02:05,292 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr37ASSERT_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.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:02:05,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:02:05,292 INFO L82 PathProgramCache]: Analyzing trace with hash -781927551, now seen corresponding path program 1 times [2020-12-22 16:02:05,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:02:05,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152549958] [2020-12-22 16:02:05,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:02:05,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:02:05,472 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-22 16:02:05,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152549958] [2020-12-22 16:02:05,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:02:05,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:02:05,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652360998] [2020-12-22 16:02:05,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:02:05,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:02:05,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:02:05,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:02:05,474 INFO L87 Difference]: Start difference. First operand 47825 states and 60200 transitions. Second operand 4 states. [2020-12-22 16:02:07,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:02:07,521 INFO L93 Difference]: Finished difference Result 47825 states and 60200 transitions. [2020-12-22 16:02:07,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 16:02:07,522 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 94 [2020-12-22 16:02:07,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:02:07,572 INFO L225 Difference]: With dead ends: 47825 [2020-12-22 16:02:07,572 INFO L226 Difference]: Without dead ends: 47660 [2020-12-22 16:02:07,584 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 16:02:07,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47660 states. [2020-12-22 16:02:09,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47660 to 47660. [2020-12-22 16:02:09,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47660 states. [2020-12-22 16:02:09,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47660 states to 47660 states and 59971 transitions. [2020-12-22 16:02:09,642 INFO L78 Accepts]: Start accepts. Automaton has 47660 states and 59971 transitions. Word has length 94 [2020-12-22 16:02:09,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:02:09,642 INFO L481 AbstractCegarLoop]: Abstraction has 47660 states and 59971 transitions. [2020-12-22 16:02:09,642 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:02:09,642 INFO L276 IsEmpty]: Start isEmpty. Operand 47660 states and 59971 transitions. [2020-12-22 16:02:09,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-12-22 16:02:09,645 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:02:09,645 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:02:09,645 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-22 16:02:09,645 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr37ASSERT_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.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:02:09,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:02:09,645 INFO L82 PathProgramCache]: Analyzing trace with hash -386111282, now seen corresponding path program 1 times [2020-12-22 16:02:09,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:02:09,646 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904743126] [2020-12-22 16:02:09,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:02:09,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:02:09,794 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 16:02:09,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904743126] [2020-12-22 16:02:09,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:02:09,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:02:09,795 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239357354] [2020-12-22 16:02:09,795 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:02:09,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:02:09,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:02:09,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:02:09,796 INFO L87 Difference]: Start difference. First operand 47660 states and 59971 transitions. Second operand 3 states. [2020-12-22 16:02:13,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:02:13,386 INFO L93 Difference]: Finished difference Result 104172 states and 131365 transitions. [2020-12-22 16:02:13,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:02:13,387 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-12-22 16:02:13,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:02:13,449 INFO L225 Difference]: With dead ends: 104172 [2020-12-22 16:02:13,449 INFO L226 Difference]: Without dead ends: 56585 [2020-12-22 16:02:13,489 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 16:02:13,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56585 states. [2020-12-22 16:02:15,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56585 to 56557. [2020-12-22 16:02:15,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56557 states. [2020-12-22 16:02:15,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56557 states to 56557 states and 71314 transitions. [2020-12-22 16:02:15,980 INFO L78 Accepts]: Start accepts. Automaton has 56557 states and 71314 transitions. Word has length 126 [2020-12-22 16:02:15,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:02:15,980 INFO L481 AbstractCegarLoop]: Abstraction has 56557 states and 71314 transitions. [2020-12-22 16:02:15,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:02:15,980 INFO L276 IsEmpty]: Start isEmpty. Operand 56557 states and 71314 transitions. [2020-12-22 16:02:15,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-12-22 16:02:15,983 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:02:15,983 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:02:15,983 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-22 16:02:15,984 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr37ASSERT_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.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:02:15,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:02:15,984 INFO L82 PathProgramCache]: Analyzing trace with hash -363479028, now seen corresponding path program 1 times [2020-12-22 16:02:15,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:02:15,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817742118] [2020-12-22 16:02:15,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:02:16,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:02:16,131 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 16:02:16,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817742118] [2020-12-22 16:02:16,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:02:16,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:02:16,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642746580] [2020-12-22 16:02:16,132 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:02:16,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:02:16,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:02:16,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:02:16,133 INFO L87 Difference]: Start difference. First operand 56557 states and 71314 transitions. Second operand 3 states. [2020-12-22 16:02:20,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:02:20,322 INFO L93 Difference]: Finished difference Result 122002 states and 154123 transitions. [2020-12-22 16:02:20,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:02:20,323 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-12-22 16:02:20,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:02:20,400 INFO L225 Difference]: With dead ends: 122002 [2020-12-22 16:02:20,400 INFO L226 Difference]: Without dead ends: 65576 [2020-12-22 16:02:20,450 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 16:02:20,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65576 states. [2020-12-22 16:02:23,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65576 to 65548. [2020-12-22 16:02:23,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65548 states. [2020-12-22 16:02:23,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65548 states to 65548 states and 82771 transitions. [2020-12-22 16:02:23,485 INFO L78 Accepts]: Start accepts. Automaton has 65548 states and 82771 transitions. Word has length 126 [2020-12-22 16:02:23,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:02:23,485 INFO L481 AbstractCegarLoop]: Abstraction has 65548 states and 82771 transitions. [2020-12-22 16:02:23,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:02:23,485 INFO L276 IsEmpty]: Start isEmpty. Operand 65548 states and 82771 transitions. [2020-12-22 16:02:23,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-12-22 16:02:23,489 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:02:23,489 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:02:23,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-22 16:02:23,490 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr37ASSERT_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.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:02:23,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:02:23,490 INFO L82 PathProgramCache]: Analyzing trace with hash 789530382, now seen corresponding path program 1 times [2020-12-22 16:02:23,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:02:23,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84735997] [2020-12-22 16:02:23,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:02:23,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:02:23,653 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-12-22 16:02:23,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84735997] [2020-12-22 16:02:23,653 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:02:23,653 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:02:23,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500549791] [2020-12-22 16:02:23,654 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:02:23,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:02:23,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:02:23,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:02:23,655 INFO L87 Difference]: Start difference. First operand 65548 states and 82771 transitions. Second operand 3 states. [2020-12-22 16:02:27,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:02:27,721 INFO L93 Difference]: Finished difference Result 139960 states and 176989 transitions. [2020-12-22 16:02:27,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:02:27,721 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2020-12-22 16:02:27,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:02:27,810 INFO L225 Difference]: With dead ends: 139960 [2020-12-22 16:02:27,810 INFO L226 Difference]: Without dead ends: 74543 [2020-12-22 16:02:27,872 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 16:02:27,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74543 states. [2020-12-22 16:02:31,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74543 to 74515. [2020-12-22 16:02:31,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74515 states. [2020-12-22 16:02:31,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74515 states to 74515 states and 94204 transitions. [2020-12-22 16:02:31,185 INFO L78 Accepts]: Start accepts. Automaton has 74515 states and 94204 transitions. Word has length 161 [2020-12-22 16:02:31,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:02:31,185 INFO L481 AbstractCegarLoop]: Abstraction has 74515 states and 94204 transitions. [2020-12-22 16:02:31,185 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:02:31,186 INFO L276 IsEmpty]: Start isEmpty. Operand 74515 states and 94204 transitions. [2020-12-22 16:02:31,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-12-22 16:02:31,189 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:02:31,190 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:02:31,190 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-22 16:02:31,190 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr37ASSERT_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.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:02:31,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:02:31,191 INFO L82 PathProgramCache]: Analyzing trace with hash 812162636, now seen corresponding path program 1 times [2020-12-22 16:02:31,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:02:31,191 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601818012] [2020-12-22 16:02:31,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:02:31,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:02:31,342 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-12-22 16:02:31,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601818012] [2020-12-22 16:02:31,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:02:31,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:02:31,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364663698] [2020-12-22 16:02:31,343 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 16:02:31,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:02:31,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 16:02:31,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 16:02:31,344 INFO L87 Difference]: Start difference. First operand 74515 states and 94204 transitions. Second operand 3 states. [2020-12-22 16:02:36,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:02:36,229 INFO L93 Difference]: Finished difference Result 157906 states and 199879 transitions. [2020-12-22 16:02:36,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 16:02:36,229 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2020-12-22 16:02:36,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:02:36,331 INFO L225 Difference]: With dead ends: 157906 [2020-12-22 16:02:36,331 INFO L226 Difference]: Without dead ends: 83522 [2020-12-22 16:02:36,393 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 16:02:36,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83522 states. [2020-12-22 16:02:39,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83522 to 83494. [2020-12-22 16:02:39,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83494 states. [2020-12-22 16:02:40,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83494 states to 83494 states and 105649 transitions. [2020-12-22 16:02:40,194 INFO L78 Accepts]: Start accepts. Automaton has 83494 states and 105649 transitions. Word has length 161 [2020-12-22 16:02:40,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:02:40,194 INFO L481 AbstractCegarLoop]: Abstraction has 83494 states and 105649 transitions. [2020-12-22 16:02:40,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 16:02:40,194 INFO L276 IsEmpty]: Start isEmpty. Operand 83494 states and 105649 transitions. [2020-12-22 16:02:40,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-12-22 16:02:40,198 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:02:40,198 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:02:40,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-22 16:02:40,199 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr37ASSERT_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.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:02:40,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:02:40,199 INFO L82 PathProgramCache]: Analyzing trace with hash 1296329250, now seen corresponding path program 1 times [2020-12-22 16:02:40,199 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:02:40,199 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780657845] [2020-12-22 16:02:40,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:02:40,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:02:40,494 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2020-12-22 16:02:40,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780657845] [2020-12-22 16:02:40,495 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:02:40,495 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 16:02:40,495 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455118138] [2020-12-22 16:02:40,495 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:02:40,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:02:40,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:02:40,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:02:40,499 INFO L87 Difference]: Start difference. First operand 83494 states and 105649 transitions. Second operand 4 states. [2020-12-22 16:02:45,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 16:02:45,899 INFO L93 Difference]: Finished difference Result 133229 states and 168077 transitions. [2020-12-22 16:02:45,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 16:02:45,899 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 188 [2020-12-22 16:02:45,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 16:02:46,068 INFO L225 Difference]: With dead ends: 133229 [2020-12-22 16:02:46,068 INFO L226 Difference]: Without dead ends: 133221 [2020-12-22 16:02:46,241 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 16:02:46,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133221 states. [2020-12-22 16:02:50,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133221 to 83486. [2020-12-22 16:02:50,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83486 states. [2020-12-22 16:02:50,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83486 states to 83486 states and 105507 transitions. [2020-12-22 16:02:50,800 INFO L78 Accepts]: Start accepts. Automaton has 83486 states and 105507 transitions. Word has length 188 [2020-12-22 16:02:50,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 16:02:50,801 INFO L481 AbstractCegarLoop]: Abstraction has 83486 states and 105507 transitions. [2020-12-22 16:02:50,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 16:02:50,801 INFO L276 IsEmpty]: Start isEmpty. Operand 83486 states and 105507 transitions. [2020-12-22 16:02:50,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-12-22 16:02:50,814 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 16:02:50,814 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 16:02:50,814 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-22 16:02:50,815 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr38ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr43ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr36ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr40ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr34ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr41ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr32ASSERT_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.startErr37ASSERT_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.startErr39ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr27ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr42ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr33ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr35ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr29ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr31ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 16:02:50,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 16:02:50,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1388251505, now seen corresponding path program 1 times [2020-12-22 16:02:50,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 16:02:50,816 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280342549] [2020-12-22 16:02:50,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 16:02:50,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 16:02:51,104 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-12-22 16:02:51,105 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280342549] [2020-12-22 16:02:51,105 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 16:02:51,105 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 16:02:51,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455734457] [2020-12-22 16:02:51,106 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 16:02:51,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 16:02:51,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 16:02:51,110 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 16:02:51,110 INFO L87 Difference]: Start difference. First operand 83486 states and 105507 transitions. Second operand 4 states.