/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-alloc-spinlock_drivers-net-usb-pegasus.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 15:33:48,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 15:33:48,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 15:33:48,710 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 15:33:48,710 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 15:33:48,712 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 15:33:48,715 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 15:33:48,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 15:33:48,721 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 15:33:48,722 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 15:33:48,724 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 15:33:48,726 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 15:33:48,727 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 15:33:48,729 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 15:33:48,730 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 15:33:48,732 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 15:33:48,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 15:33:48,735 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 15:33:48,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 15:33:48,753 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 15:33:48,755 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 15:33:48,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 15:33:48,759 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 15:33:48,760 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 15:33:48,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 15:33:48,765 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 15:33:48,765 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 15:33:48,767 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 15:33:48,767 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 15:33:48,769 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 15:33:48,769 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 15:33:48,771 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 15:33:48,772 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 15:33:48,773 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 15:33:48,774 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 15:33:48,775 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 15:33:48,776 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 15:33:48,776 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 15:33:48,777 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 15:33:48,778 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 15:33:48,780 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 15:33:48,783 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 15:33:48,814 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 15:33:48,815 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 15:33:48,816 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 15:33:48,817 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 15:33:48,817 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 15:33:48,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 15:33:48,818 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 15:33:48,818 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 15:33:48,819 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 15:33:48,819 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 15:33:48,819 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 15:33:48,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 15:33:48,820 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 15:33:48,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 15:33:48,820 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 15:33:48,821 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 15:33:48,821 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 15:33:48,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 15:33:48,821 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 15:33:48,822 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 15:33:48,822 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 15:33:48,822 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 15:33:48,823 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 15:33:48,823 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 15:33:48,823 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 15:33:48,823 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 15:33:49,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 15:33:49,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 15:33:49,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 15:33:49,397 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 15:33:49,397 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 15:33:49,399 INFO L432 ainManager$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-alloc-spinlock_drivers-net-usb-pegasus.cil.i [2020-12-22 15:33:49,502 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a7a89e25/f3bd73f6946b4d21979e9fd27ddbc2f0/FLAG89898f7db [2020-12-22 15:33:50,655 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 15:33:50,656 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i [2020-12-22 15:33:50,706 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a7a89e25/f3bd73f6946b4d21979e9fd27ddbc2f0/FLAG89898f7db [2020-12-22 15:33:51,027 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a7a89e25/f3bd73f6946b4d21979e9fd27ddbc2f0 [2020-12-22 15:33:51,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 15:33:51,032 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 15:33:51,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 15:33:51,035 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 15:33:51,039 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 15:33:51,040 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:33:51" (1/1) ... [2020-12-22 15:33:51,042 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44b125b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:33:51, skipping insertion in model container [2020-12-22 15:33:51,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:33:51" (1/1) ... [2020-12-22 15:33:51,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 15:33:51,287 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 15:33:54,693 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-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327451,327464] [2020-12-22 15:33:54,696 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-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327596,327609] [2020-12-22 15:33:54,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:33:54,837 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 15:33:55,370 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-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327451,327464] [2020-12-22 15:33:55,371 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-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327596,327609] [2020-12-22 15:33:55,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 15:33:56,226 INFO L208 MainTranslator]: Completed translation [2020-12-22 15:33:56,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:33:56 WrapperNode [2020-12-22 15:33:56,227 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 15:33:56,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 15:33:56,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 15:33:56,233 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 15:33:56,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:33:56" (1/1) ... [2020-12-22 15:33:56,433 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:33:56" (1/1) ... [2020-12-22 15:33:57,057 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 15:33:57,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 15:33:57,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 15:33:57,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 15:33:57,071 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:33:56" (1/1) ... [2020-12-22 15:33:57,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:33:56" (1/1) ... [2020-12-22 15:33:57,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:33:56" (1/1) ... [2020-12-22 15:33:57,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:33:56" (1/1) ... [2020-12-22 15:33:58,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:33:56" (1/1) ... [2020-12-22 15:33:58,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:33:56" (1/1) ... [2020-12-22 15:33:58,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:33:56" (1/1) ... [2020-12-22 15:33:58,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 15:33:58,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 15:33:58,612 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 15:33:58,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 15:33:58,613 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:33:56" (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 15:33:58,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 15:33:58,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 15:33:58,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 15:33:58,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 15:33:58,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 15:33:58,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 15:33:58,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 15:33:58,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 15:33:58,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 15:33:58,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 15:33:58,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 15:33:58,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 15:33:58,753 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 15:33:58,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 15:33:58,754 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2020-12-22 15:33:58,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 15:34:36,880 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_1_switch_break: ldv_switch_1_#res := 0; [2020-12-22 15:34:36,881 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break#2: ldv_switch_0_#res := 0; [2020-12-22 15:34:36,883 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_switch_0_switch_break: ldv_switch_0_#res := 0; [2020-12-22 15:34:36,883 INFO L759 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2020-12-22 15:34:36,929 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 15:34:36,930 INFO L299 CfgBuilder]: Removed 2955 assume(true) statements. [2020-12-22 15:34:36,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:34:36 BoogieIcfgContainer [2020-12-22 15:34:36,936 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 15:34:36,937 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 15:34:36,938 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 15:34:36,941 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 15:34:36,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:33:51" (1/3) ... [2020-12-22 15:34:36,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b70ca4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:34:36, skipping insertion in model container [2020-12-22 15:34:36,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:33:56" (2/3) ... [2020-12-22 15:34:36,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b70ca4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:34:36, skipping insertion in model container [2020-12-22 15:34:36,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:34:36" (3/3) ... [2020-12-22 15:34:36,945 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i [2020-12-22 15:34:36,952 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 15:34:36,960 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 27 error locations. [2020-12-22 15:34:36,981 INFO L253 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2020-12-22 15:34:37,024 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 15:34:37,025 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 15:34:37,025 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 15:34:37,025 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 15:34:37,025 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 15:34:37,025 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 15:34:37,025 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 15:34:37,026 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 15:34:37,100 INFO L276 IsEmpty]: Start isEmpty. Operand 3464 states. [2020-12-22 15:34:37,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-12-22 15:34:37,116 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:34:37,117 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] [2020-12-22 15:34:37,118 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:34:37,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:34:37,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1108495404, now seen corresponding path program 1 times [2020-12-22 15:34:37,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:34:37,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676347083] [2020-12-22 15:34:37,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:34:38,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:34:38,599 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 15:34:38,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676347083] [2020-12-22 15:34:38,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:34:38,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:34:38,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487476511] [2020-12-22 15:34:38,608 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:34:38,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:34:38,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:34:38,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:34:38,628 INFO L87 Difference]: Start difference. First operand 3464 states. Second operand 3 states. [2020-12-22 15:34:41,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:34:41,502 INFO L93 Difference]: Finished difference Result 10071 states and 14431 transitions. [2020-12-22 15:34:41,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:34:41,505 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 59 [2020-12-22 15:34:41,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:34:41,576 INFO L225 Difference]: With dead ends: 10071 [2020-12-22 15:34:41,577 INFO L226 Difference]: Without dead ends: 6441 [2020-12-22 15:34:41,597 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 15:34:41,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6441 states. [2020-12-22 15:34:41,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6441 to 6385. [2020-12-22 15:34:41,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6385 states. [2020-12-22 15:34:41,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6385 states to 6385 states and 9065 transitions. [2020-12-22 15:34:41,951 INFO L78 Accepts]: Start accepts. Automaton has 6385 states and 9065 transitions. Word has length 59 [2020-12-22 15:34:41,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:34:41,953 INFO L481 AbstractCegarLoop]: Abstraction has 6385 states and 9065 transitions. [2020-12-22 15:34:41,953 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:34:41,953 INFO L276 IsEmpty]: Start isEmpty. Operand 6385 states and 9065 transitions. [2020-12-22 15:34:41,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-12-22 15:34:41,966 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:34:41,966 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:34:41,967 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 15:34:41,967 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:34:41,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:34:41,968 INFO L82 PathProgramCache]: Analyzing trace with hash -1975101913, now seen corresponding path program 1 times [2020-12-22 15:34:41,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:34:41,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859910771] [2020-12-22 15:34:41,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:34:42,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:34:42,609 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 15:34:42,610 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859910771] [2020-12-22 15:34:42,610 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:34:42,610 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:34:42,610 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668916915] [2020-12-22 15:34:42,613 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:34:42,613 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:34:42,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:34:42,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:34:42,614 INFO L87 Difference]: Start difference. First operand 6385 states and 9065 transitions. Second operand 3 states. [2020-12-22 15:34:45,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:34:45,210 INFO L93 Difference]: Finished difference Result 13881 states and 19724 transitions. [2020-12-22 15:34:45,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:34:45,211 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-12-22 15:34:45,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:34:45,255 INFO L225 Difference]: With dead ends: 13881 [2020-12-22 15:34:45,256 INFO L226 Difference]: Without dead ends: 7596 [2020-12-22 15:34:45,271 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 15:34:45,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7596 states. [2020-12-22 15:34:45,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7596 to 7572. [2020-12-22 15:34:45,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7572 states. [2020-12-22 15:34:45,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7572 states to 7572 states and 10731 transitions. [2020-12-22 15:34:45,511 INFO L78 Accepts]: Start accepts. Automaton has 7572 states and 10731 transitions. Word has length 67 [2020-12-22 15:34:45,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:34:45,512 INFO L481 AbstractCegarLoop]: Abstraction has 7572 states and 10731 transitions. [2020-12-22 15:34:45,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:34:45,512 INFO L276 IsEmpty]: Start isEmpty. Operand 7572 states and 10731 transitions. [2020-12-22 15:34:45,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-12-22 15:34:45,514 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:34:45,514 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:34:45,515 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 15:34:45,516 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:34:45,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:34:45,518 INFO L82 PathProgramCache]: Analyzing trace with hash -1052806731, now seen corresponding path program 1 times [2020-12-22 15:34:45,518 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:34:45,518 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78537957] [2020-12-22 15:34:45,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:34:45,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:34:46,055 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 15:34:46,057 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78537957] [2020-12-22 15:34:46,061 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:34:46,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:34:46,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264839195] [2020-12-22 15:34:46,064 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:34:46,069 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:34:46,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:34:46,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:34:46,076 INFO L87 Difference]: Start difference. First operand 7572 states and 10731 transitions. Second operand 3 states. [2020-12-22 15:34:48,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:34:48,942 INFO L93 Difference]: Finished difference Result 20712 states and 29417 transitions. [2020-12-22 15:34:48,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:34:48,943 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-12-22 15:34:48,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:34:49,049 INFO L225 Difference]: With dead ends: 20712 [2020-12-22 15:34:49,050 INFO L226 Difference]: Without dead ends: 13240 [2020-12-22 15:34:49,070 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 15:34:49,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13240 states. [2020-12-22 15:34:49,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13240 to 13070. [2020-12-22 15:34:49,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13070 states. [2020-12-22 15:34:49,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13070 states to 13070 states and 18607 transitions. [2020-12-22 15:34:49,860 INFO L78 Accepts]: Start accepts. Automaton has 13070 states and 18607 transitions. Word has length 69 [2020-12-22 15:34:49,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:34:49,861 INFO L481 AbstractCegarLoop]: Abstraction has 13070 states and 18607 transitions. [2020-12-22 15:34:49,861 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:34:49,862 INFO L276 IsEmpty]: Start isEmpty. Operand 13070 states and 18607 transitions. [2020-12-22 15:34:49,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-12-22 15:34:49,865 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:34:49,866 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 15:34:49,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 15:34:49,867 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:34:49,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:34:49,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1285430771, now seen corresponding path program 1 times [2020-12-22 15:34:49,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:34:49,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2035281996] [2020-12-22 15:34:49,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:34:50,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:34:50,565 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 15:34:50,566 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2035281996] [2020-12-22 15:34:50,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:34:50,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:34:50,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534316015] [2020-12-22 15:34:50,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:34:50,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:34:50,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:34:50,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:34:50,570 INFO L87 Difference]: Start difference. First operand 13070 states and 18607 transitions. Second operand 3 states. [2020-12-22 15:34:53,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:34:53,391 INFO L93 Difference]: Finished difference Result 38962 states and 55549 transitions. [2020-12-22 15:34:53,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:34:53,393 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2020-12-22 15:34:53,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:34:53,473 INFO L225 Difference]: With dead ends: 38962 [2020-12-22 15:34:53,474 INFO L226 Difference]: Without dead ends: 25992 [2020-12-22 15:34:53,505 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 15:34:53,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25992 states. [2020-12-22 15:34:54,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25992 to 25890. [2020-12-22 15:34:54,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25890 states. [2020-12-22 15:34:54,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25890 states to 25890 states and 36955 transitions. [2020-12-22 15:34:54,246 INFO L78 Accepts]: Start accepts. Automaton has 25890 states and 36955 transitions. Word has length 72 [2020-12-22 15:34:54,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:34:54,248 INFO L481 AbstractCegarLoop]: Abstraction has 25890 states and 36955 transitions. [2020-12-22 15:34:54,248 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:34:54,249 INFO L276 IsEmpty]: Start isEmpty. Operand 25890 states and 36955 transitions. [2020-12-22 15:34:54,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-12-22 15:34:54,251 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:34:54,252 INFO L422 BasicCegarLoop]: trace histogram [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 15:34:54,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 15:34:54,252 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:34:54,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:34:54,253 INFO L82 PathProgramCache]: Analyzing trace with hash -255720582, now seen corresponding path program 1 times [2020-12-22 15:34:54,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:34:54,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615286703] [2020-12-22 15:34:54,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:34:54,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:34:54,720 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 15:34:54,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615286703] [2020-12-22 15:34:54,720 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:34:54,720 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:34:54,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521348101] [2020-12-22 15:34:54,721 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:34:54,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:34:54,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:34:54,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:34:54,723 INFO L87 Difference]: Start difference. First operand 25890 states and 36955 transitions. Second operand 3 states. [2020-12-22 15:34:58,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:34:58,265 INFO L93 Difference]: Finished difference Result 77390 states and 110561 transitions. [2020-12-22 15:34:58,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:34:58,267 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 82 [2020-12-22 15:34:58,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:34:58,453 INFO L225 Difference]: With dead ends: 77390 [2020-12-22 15:34:58,453 INFO L226 Difference]: Without dead ends: 51600 [2020-12-22 15:34:58,535 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 15:34:58,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51600 states. [2020-12-22 15:35:00,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51600 to 51482. [2020-12-22 15:35:00,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51482 states. [2020-12-22 15:35:00,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51482 states to 51482 states and 73579 transitions. [2020-12-22 15:35:00,324 INFO L78 Accepts]: Start accepts. Automaton has 51482 states and 73579 transitions. Word has length 82 [2020-12-22 15:35:00,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:35:00,325 INFO L481 AbstractCegarLoop]: Abstraction has 51482 states and 73579 transitions. [2020-12-22 15:35:00,325 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:35:00,325 INFO L276 IsEmpty]: Start isEmpty. Operand 51482 states and 73579 transitions. [2020-12-22 15:35:00,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-12-22 15:35:00,331 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:35:00,333 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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 15:35:00,333 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 15:35:00,335 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:35:00,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:35:00,336 INFO L82 PathProgramCache]: Analyzing trace with hash 250718301, now seen corresponding path program 1 times [2020-12-22 15:35:00,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:35:00,336 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158932227] [2020-12-22 15:35:00,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:35:00,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:35:00,978 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-22 15:35:00,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158932227] [2020-12-22 15:35:00,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:35:00,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:35:00,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499299051] [2020-12-22 15:35:00,980 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:35:00,981 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:35:00,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:35:00,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:35:00,982 INFO L87 Difference]: Start difference. First operand 51482 states and 73579 transitions. Second operand 3 states. [2020-12-22 15:35:04,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:35:04,281 INFO L93 Difference]: Finished difference Result 102909 states and 147100 transitions. [2020-12-22 15:35:04,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:35:04,282 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2020-12-22 15:35:04,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:35:04,438 INFO L225 Difference]: With dead ends: 102909 [2020-12-22 15:35:04,438 INFO L226 Difference]: Without dead ends: 51527 [2020-12-22 15:35:04,562 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 15:35:04,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51527 states. [2020-12-22 15:35:06,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51527 to 51527. [2020-12-22 15:35:06,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51527 states. [2020-12-22 15:35:06,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51527 states to 51527 states and 73629 transitions. [2020-12-22 15:35:06,288 INFO L78 Accepts]: Start accepts. Automaton has 51527 states and 73629 transitions. Word has length 84 [2020-12-22 15:35:06,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:35:06,288 INFO L481 AbstractCegarLoop]: Abstraction has 51527 states and 73629 transitions. [2020-12-22 15:35:06,288 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:35:06,288 INFO L276 IsEmpty]: Start isEmpty. Operand 51527 states and 73629 transitions. [2020-12-22 15:35:06,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-12-22 15:35:06,292 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:35:06,293 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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] [2020-12-22 15:35:06,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 15:35:06,293 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:35:06,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:35:06,294 INFO L82 PathProgramCache]: Analyzing trace with hash -186016021, now seen corresponding path program 1 times [2020-12-22 15:35:06,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:35:06,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6194708] [2020-12-22 15:35:06,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:35:06,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:35:06,766 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-22 15:35:06,766 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6194708] [2020-12-22 15:35:06,767 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:35:06,767 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:35:06,767 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367031859] [2020-12-22 15:35:06,767 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:35:06,768 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:35:06,768 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:35:06,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:35:06,769 INFO L87 Difference]: Start difference. First operand 51527 states and 73629 transitions. Second operand 3 states. [2020-12-22 15:35:11,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:35:11,018 INFO L93 Difference]: Finished difference Result 151875 states and 217699 transitions. [2020-12-22 15:35:11,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:35:11,019 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2020-12-22 15:35:11,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:35:11,212 INFO L225 Difference]: With dead ends: 151875 [2020-12-22 15:35:11,212 INFO L226 Difference]: Without dead ends: 100493 [2020-12-22 15:35:11,307 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 15:35:11,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100493 states. [2020-12-22 15:35:13,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100493 to 100439. [2020-12-22 15:35:13,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100439 states. [2020-12-22 15:35:14,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100439 states to 100439 states and 144109 transitions. [2020-12-22 15:35:14,087 INFO L78 Accepts]: Start accepts. Automaton has 100439 states and 144109 transitions. Word has length 116 [2020-12-22 15:35:14,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:35:14,088 INFO L481 AbstractCegarLoop]: Abstraction has 100439 states and 144109 transitions. [2020-12-22 15:35:14,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:35:14,088 INFO L276 IsEmpty]: Start isEmpty. Operand 100439 states and 144109 transitions. [2020-12-22 15:35:14,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-12-22 15:35:14,093 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:35:14,093 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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] [2020-12-22 15:35:14,094 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 15:35:14,094 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:35:14,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:35:14,095 INFO L82 PathProgramCache]: Analyzing trace with hash 707470317, now seen corresponding path program 1 times [2020-12-22 15:35:14,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:35:14,095 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724658570] [2020-12-22 15:35:14,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:35:14,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:35:14,802 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-22 15:35:14,804 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724658570] [2020-12-22 15:35:14,804 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:35:14,805 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:35:14,805 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949861647] [2020-12-22 15:35:14,806 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:35:14,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:35:14,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:35:14,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:35:14,807 INFO L87 Difference]: Start difference. First operand 100439 states and 144109 transitions. Second operand 3 states. [2020-12-22 15:35:19,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:35:19,884 INFO L93 Difference]: Finished difference Result 249731 states and 358691 transitions. [2020-12-22 15:35:19,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:35:19,885 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2020-12-22 15:35:19,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:35:20,171 INFO L225 Difference]: With dead ends: 249731 [2020-12-22 15:35:20,171 INFO L226 Difference]: Without dead ends: 149010 [2020-12-22 15:35:20,272 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 15:35:20,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149010 states. [2020-12-22 15:35:23,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149010 to 148956. [2020-12-22 15:35:23,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148956 states. [2020-12-22 15:35:24,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148956 states to 148956 states and 214108 transitions. [2020-12-22 15:35:24,004 INFO L78 Accepts]: Start accepts. Automaton has 148956 states and 214108 transitions. Word has length 116 [2020-12-22 15:35:24,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:35:24,004 INFO L481 AbstractCegarLoop]: Abstraction has 148956 states and 214108 transitions. [2020-12-22 15:35:24,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:35:24,005 INFO L276 IsEmpty]: Start isEmpty. Operand 148956 states and 214108 transitions. [2020-12-22 15:35:24,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-12-22 15:35:24,017 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:35:24,017 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 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] [2020-12-22 15:35:24,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 15:35:24,018 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:35:24,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:35:24,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1199430277, now seen corresponding path program 1 times [2020-12-22 15:35:24,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:35:24,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36117355] [2020-12-22 15:35:24,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:35:24,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:35:24,606 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 15:35:24,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36117355] [2020-12-22 15:35:24,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:35:24,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:35:24,609 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630446594] [2020-12-22 15:35:24,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:35:24,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:35:24,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:35:24,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:35:24,611 INFO L87 Difference]: Start difference. First operand 148956 states and 214108 transitions. Second operand 3 states. [2020-12-22 15:35:30,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:35:30,700 INFO L93 Difference]: Finished difference Result 313072 states and 450037 transitions. [2020-12-22 15:35:30,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:35:30,701 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2020-12-22 15:35:30,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:35:31,189 INFO L225 Difference]: With dead ends: 313072 [2020-12-22 15:35:31,189 INFO L226 Difference]: Without dead ends: 164261 [2020-12-22 15:35:31,344 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 15:35:31,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164261 states. [2020-12-22 15:35:34,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164261 to 164108. [2020-12-22 15:35:34,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164108 states. [2020-12-22 15:35:35,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164108 states to 164108 states and 235467 transitions. [2020-12-22 15:35:35,286 INFO L78 Accepts]: Start accepts. Automaton has 164108 states and 235467 transitions. Word has length 117 [2020-12-22 15:35:35,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:35:35,286 INFO L481 AbstractCegarLoop]: Abstraction has 164108 states and 235467 transitions. [2020-12-22 15:35:35,286 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:35:35,286 INFO L276 IsEmpty]: Start isEmpty. Operand 164108 states and 235467 transitions. [2020-12-22 15:35:35,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-12-22 15:35:35,291 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:35:35,291 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 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] [2020-12-22 15:35:35,291 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 15:35:35,292 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:35:35,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:35:35,292 INFO L82 PathProgramCache]: Analyzing trace with hash -359945721, now seen corresponding path program 1 times [2020-12-22 15:35:35,292 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:35:35,293 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635049000] [2020-12-22 15:35:35,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:35:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:35:36,167 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-12-22 15:35:36,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635049000] [2020-12-22 15:35:36,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:35:36,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 15:35:36,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703388527] [2020-12-22 15:35:36,169 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 15:35:36,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:35:36,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 15:35:36,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 15:35:36,170 INFO L87 Difference]: Start difference. First operand 164108 states and 235467 transitions. Second operand 3 states. [2020-12-22 15:35:40,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:35:40,039 INFO L93 Difference]: Finished difference Result 328071 states and 470772 transitions. [2020-12-22 15:35:40,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:35:40,040 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130 [2020-12-22 15:35:40,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:35:40,557 INFO L225 Difference]: With dead ends: 328071 [2020-12-22 15:35:40,557 INFO L226 Difference]: Without dead ends: 164108 [2020-12-22 15:35:40,744 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 15:35:40,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164108 states. [2020-12-22 15:35:44,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164108 to 164108. [2020-12-22 15:35:44,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164108 states. [2020-12-22 15:35:45,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164108 states to 164108 states and 234027 transitions. [2020-12-22 15:35:45,087 INFO L78 Accepts]: Start accepts. Automaton has 164108 states and 234027 transitions. Word has length 130 [2020-12-22 15:35:45,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:35:45,087 INFO L481 AbstractCegarLoop]: Abstraction has 164108 states and 234027 transitions. [2020-12-22 15:35:45,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 15:35:45,087 INFO L276 IsEmpty]: Start isEmpty. Operand 164108 states and 234027 transitions. [2020-12-22 15:35:45,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-12-22 15:35:45,090 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:35:45,091 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 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] [2020-12-22 15:35:45,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 15:35:45,091 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:35:45,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:35:45,092 INFO L82 PathProgramCache]: Analyzing trace with hash 1726971364, now seen corresponding path program 1 times [2020-12-22 15:35:45,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:35:45,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645121372] [2020-12-22 15:35:45,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:35:45,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:35:45,667 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-12-22 15:35:45,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645121372] [2020-12-22 15:35:45,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:35:45,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:35:45,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190569521] [2020-12-22 15:35:45,669 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:35:45,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:35:45,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:35:45,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:35:45,671 INFO L87 Difference]: Start difference. First operand 164108 states and 234027 transitions. Second operand 4 states. [2020-12-22 15:35:50,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:35:50,923 INFO L93 Difference]: Finished difference Result 328071 states and 467892 transitions. [2020-12-22 15:35:50,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:35:50,924 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 131 [2020-12-22 15:35:50,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:35:51,288 INFO L225 Difference]: With dead ends: 328071 [2020-12-22 15:35:51,289 INFO L226 Difference]: Without dead ends: 164108 [2020-12-22 15:35:51,470 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 15:35:51,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164108 states. [2020-12-22 15:35:55,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164108 to 164108. [2020-12-22 15:35:55,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164108 states. [2020-12-22 15:35:56,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164108 states to 164108 states and 232587 transitions. [2020-12-22 15:35:56,197 INFO L78 Accepts]: Start accepts. Automaton has 164108 states and 232587 transitions. Word has length 131 [2020-12-22 15:35:56,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:35:56,197 INFO L481 AbstractCegarLoop]: Abstraction has 164108 states and 232587 transitions. [2020-12-22 15:35:56,197 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:35:56,197 INFO L276 IsEmpty]: Start isEmpty. Operand 164108 states and 232587 transitions. [2020-12-22 15:35:56,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-12-22 15:35:56,202 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:35:56,203 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 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] [2020-12-22 15:35:56,203 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 15:35:56,204 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:35:56,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:35:56,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1997040514, now seen corresponding path program 1 times [2020-12-22 15:35:56,214 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:35:56,214 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902772813] [2020-12-22 15:35:56,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:35:56,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:35:57,088 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-12-22 15:35:57,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902772813] [2020-12-22 15:35:57,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:35:57,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:35:57,089 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373307774] [2020-12-22 15:35:57,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:35:57,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:35:57,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:35:57,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:35:57,090 INFO L87 Difference]: Start difference. First operand 164108 states and 232587 transitions. Second operand 4 states. [2020-12-22 15:36:03,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:36:03,723 INFO L93 Difference]: Finished difference Result 328071 states and 465012 transitions. [2020-12-22 15:36:03,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:36:03,724 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 132 [2020-12-22 15:36:03,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:36:04,484 INFO L225 Difference]: With dead ends: 328071 [2020-12-22 15:36:04,484 INFO L226 Difference]: Without dead ends: 164108 [2020-12-22 15:36:04,755 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 15:36:04,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164108 states. [2020-12-22 15:36:10,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164108 to 164108. [2020-12-22 15:36:10,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164108 states. [2020-12-22 15:36:10,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164108 states to 164108 states and 231147 transitions. [2020-12-22 15:36:10,381 INFO L78 Accepts]: Start accepts. Automaton has 164108 states and 231147 transitions. Word has length 132 [2020-12-22 15:36:10,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:36:10,381 INFO L481 AbstractCegarLoop]: Abstraction has 164108 states and 231147 transitions. [2020-12-22 15:36:10,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:36:10,381 INFO L276 IsEmpty]: Start isEmpty. Operand 164108 states and 231147 transitions. [2020-12-22 15:36:10,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-12-22 15:36:10,386 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:36:10,387 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 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] [2020-12-22 15:36:10,387 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 15:36:10,387 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:36:10,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:36:10,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1779398527, now seen corresponding path program 1 times [2020-12-22 15:36:10,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:36:10,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105687198] [2020-12-22 15:36:10,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:36:10,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:36:11,250 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-12-22 15:36:11,254 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105687198] [2020-12-22 15:36:11,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:36:11,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:36:11,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956416900] [2020-12-22 15:36:11,255 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:36:11,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:36:11,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:36:11,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:36:11,256 INFO L87 Difference]: Start difference. First operand 164108 states and 231147 transitions. Second operand 4 states. [2020-12-22 15:36:17,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:36:17,330 INFO L93 Difference]: Finished difference Result 328071 states and 462132 transitions. [2020-12-22 15:36:17,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:36:17,331 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 133 [2020-12-22 15:36:17,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:36:17,695 INFO L225 Difference]: With dead ends: 328071 [2020-12-22 15:36:17,695 INFO L226 Difference]: Without dead ends: 164108 [2020-12-22 15:36:17,864 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 15:36:18,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164108 states. [2020-12-22 15:36:23,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164108 to 164108. [2020-12-22 15:36:23,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164108 states. [2020-12-22 15:36:23,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164108 states to 164108 states and 229707 transitions. [2020-12-22 15:36:23,709 INFO L78 Accepts]: Start accepts. Automaton has 164108 states and 229707 transitions. Word has length 133 [2020-12-22 15:36:23,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:36:23,710 INFO L481 AbstractCegarLoop]: Abstraction has 164108 states and 229707 transitions. [2020-12-22 15:36:23,710 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:36:23,710 INFO L276 IsEmpty]: Start isEmpty. Operand 164108 states and 229707 transitions. [2020-12-22 15:36:23,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-12-22 15:36:23,714 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:36:23,714 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 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] [2020-12-22 15:36:23,715 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 15:36:23,715 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:36:23,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:36:23,716 INFO L82 PathProgramCache]: Analyzing trace with hash -672386819, now seen corresponding path program 1 times [2020-12-22 15:36:23,716 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:36:23,716 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067428147] [2020-12-22 15:36:23,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:36:24,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:36:24,566 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-12-22 15:36:24,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067428147] [2020-12-22 15:36:24,567 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:36:24,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:36:24,567 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559394183] [2020-12-22 15:36:24,568 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:36:24,568 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:36:24,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:36:24,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:36:24,569 INFO L87 Difference]: Start difference. First operand 164108 states and 229707 transitions. Second operand 4 states. [2020-12-22 15:36:31,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:36:31,140 INFO L93 Difference]: Finished difference Result 328071 states and 459252 transitions. [2020-12-22 15:36:31,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:36:31,141 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 134 [2020-12-22 15:36:31,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:36:31,654 INFO L225 Difference]: With dead ends: 328071 [2020-12-22 15:36:31,654 INFO L226 Difference]: Without dead ends: 164108 [2020-12-22 15:36:31,851 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 15:36:32,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164108 states. [2020-12-22 15:36:38,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164108 to 164108. [2020-12-22 15:36:38,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164108 states. [2020-12-22 15:36:38,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164108 states to 164108 states and 228267 transitions. [2020-12-22 15:36:38,356 INFO L78 Accepts]: Start accepts. Automaton has 164108 states and 228267 transitions. Word has length 134 [2020-12-22 15:36:38,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:36:38,357 INFO L481 AbstractCegarLoop]: Abstraction has 164108 states and 228267 transitions. [2020-12-22 15:36:38,357 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:36:38,357 INFO L276 IsEmpty]: Start isEmpty. Operand 164108 states and 228267 transitions. [2020-12-22 15:36:38,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-12-22 15:36:38,361 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:36:38,361 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 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] [2020-12-22 15:36:38,361 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 15:36:38,362 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:36:38,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:36:38,362 INFO L82 PathProgramCache]: Analyzing trace with hash 631827738, now seen corresponding path program 1 times [2020-12-22 15:36:38,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:36:38,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455521472] [2020-12-22 15:36:38,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:36:38,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:36:39,192 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-12-22 15:36:39,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455521472] [2020-12-22 15:36:39,193 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:36:39,193 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:36:39,193 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383467247] [2020-12-22 15:36:39,194 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:36:39,194 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:36:39,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:36:39,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:36:39,201 INFO L87 Difference]: Start difference. First operand 164108 states and 228267 transitions. Second operand 4 states. [2020-12-22 15:36:46,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 15:36:46,286 INFO L93 Difference]: Finished difference Result 328071 states and 456372 transitions. [2020-12-22 15:36:46,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 15:36:46,287 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 135 [2020-12-22 15:36:46,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 15:36:46,791 INFO L225 Difference]: With dead ends: 328071 [2020-12-22 15:36:46,791 INFO L226 Difference]: Without dead ends: 164108 [2020-12-22 15:36:47,021 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 15:36:47,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164108 states. [2020-12-22 15:36:53,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164108 to 164108. [2020-12-22 15:36:53,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164108 states. [2020-12-22 15:36:54,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164108 states to 164108 states and 226827 transitions. [2020-12-22 15:36:54,058 INFO L78 Accepts]: Start accepts. Automaton has 164108 states and 226827 transitions. Word has length 135 [2020-12-22 15:36:54,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 15:36:54,058 INFO L481 AbstractCegarLoop]: Abstraction has 164108 states and 226827 transitions. [2020-12-22 15:36:54,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 15:36:54,058 INFO L276 IsEmpty]: Start isEmpty. Operand 164108 states and 226827 transitions. [2020-12-22 15:36:54,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-12-22 15:36:54,062 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 15:36:54,062 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 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] [2020-12-22 15:36:54,062 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-22 15:36:54,062 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr24ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr22ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr20ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr26ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr23ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr21ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr25ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 15:36:54,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 15:36:54,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1887045000, now seen corresponding path program 1 times [2020-12-22 15:36:54,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 15:36:54,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528858894] [2020-12-22 15:36:54,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 15:36:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 15:36:54,571 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-12-22 15:36:54,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528858894] [2020-12-22 15:36:54,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 15:36:54,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 15:36:54,576 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029106596] [2020-12-22 15:36:54,576 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 15:36:54,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 15:36:54,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 15:36:54,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 15:36:54,577 INFO L87 Difference]: Start difference. First operand 164108 states and 226827 transitions. Second operand 4 states.