/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-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 13:46:59,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 13:46:59,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 13:46:59,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 13:46:59,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 13:46:59,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 13:46:59,951 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 13:46:59,953 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 13:46:59,955 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 13:46:59,956 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 13:46:59,958 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 13:46:59,959 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 13:46:59,959 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 13:46:59,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 13:46:59,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 13:46:59,963 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 13:46:59,965 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 13:46:59,966 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 13:46:59,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 13:46:59,988 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 13:46:59,990 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 13:46:59,992 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 13:46:59,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 13:46:59,997 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 13:47:00,003 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-22 13:47:00,004 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-22 13:47:00,006 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-22 13:47:00,011 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-22 13:47:00,012 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-22 13:47:00,013 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-22 13:47:00,013 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 13:47:00,014 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 13:47:00,015 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 13:47:00,018 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 13:47:00,019 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 13:47:00,020 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 13:47:00,021 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 13:47:00,021 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 13:47:00,021 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 13:47:00,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 13:47:00,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 13:47:00,029 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 13:47:00,087 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 13:47:00,087 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 13:47:00,093 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 13:47:00,094 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 13:47:00,094 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 13:47:00,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 13:47:00,094 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 13:47:00,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 13:47:00,095 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 13:47:00,095 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 13:47:00,096 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 13:47:00,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 13:47:00,097 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 13:47:00,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 13:47:00,097 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 13:47:00,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 13:47:00,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 13:47:00,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 13:47:00,098 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 13:47:00,098 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 13:47:00,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 13:47:00,099 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 13:47:00,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 13:47:00,099 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 13:47:00,099 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 13:47:00,100 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 13:47:00,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 13:47:00,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 13:47:00,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 13:47:00,544 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 13:47:00,544 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 13:47:00,545 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i [2020-12-22 13:47:00,641 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aabc72602/f19bf66026404b5eb83312a93be6c630/FLAGa132bf18c [2020-12-22 13:47:01,750 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 13:47:01,751 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i [2020-12-22 13:47:01,809 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aabc72602/f19bf66026404b5eb83312a93be6c630/FLAGa132bf18c [2020-12-22 13:47:02,110 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aabc72602/f19bf66026404b5eb83312a93be6c630 [2020-12-22 13:47:02,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 13:47:02,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 13:47:02,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 13:47:02,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 13:47:02,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 13:47:02,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:47:02" (1/1) ... [2020-12-22 13:47:02,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d0abbde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:47:02, skipping insertion in model container [2020-12-22 13:47:02,125 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 01:47:02" (1/1) ... [2020-12-22 13:47:02,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 13:47:02,343 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 13:47:04,572 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-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i[238462,238475] [2020-12-22 13:47:04,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:47:04,689 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 13:47:05,288 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-validator-v0.8/linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i[238462,238475] [2020-12-22 13:47:05,312 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 13:47:05,700 INFO L208 MainTranslator]: Completed translation [2020-12-22 13:47:05,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:47:05 WrapperNode [2020-12-22 13:47:05,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 13:47:05,704 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 13:47:05,705 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 13:47:05,705 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 13:47:05,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:47:05" (1/1) ... [2020-12-22 13:47:05,826 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:47:05" (1/1) ... [2020-12-22 13:47:08,154 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 13:47:08,157 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 13:47:08,157 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 13:47:08,157 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 13:47:08,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:47:05" (1/1) ... [2020-12-22 13:47:08,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:47:05" (1/1) ... [2020-12-22 13:47:08,758 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:47:05" (1/1) ... [2020-12-22 13:47:08,758 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:47:05" (1/1) ... [2020-12-22 13:47:10,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:47:05" (1/1) ... [2020-12-22 13:47:10,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:47:05" (1/1) ... [2020-12-22 13:47:11,139 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:47:05" (1/1) ... [2020-12-22 13:47:11,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 13:47:11,534 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 13:47:11,534 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 13:47:11,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 13:47:11,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:47:05" (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 13:47:11,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2020-12-22 13:47:11,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2020-12-22 13:47:11,655 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_usb_bulk_msg [2020-12-22 13:47:11,655 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_usb_bulk_msg [2020-12-22 13:47:11,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2020-12-22 13:47:11,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2020-12-22 13:47:11,655 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_signal_sdio_irq [2020-12-22 13:47:11,655 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_signal_sdio_irq [2020-12-22 13:47:11,655 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2020-12-22 13:47:11,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2020-12-22 13:47:11,656 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_29 [2020-12-22 13:47:11,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_29 [2020-12-22 13:47:11,656 INFO L130 BoogieDeclarations]: Found specification of procedure __command_read_data [2020-12-22 13:47:11,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_read_data [2020-12-22 13:47:11,656 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 13:47:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_27 [2020-12-22 13:47:11,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_27 [2020-12-22 13:47:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-22 13:47:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_13 [2020-12-22 13:47:11,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_13 [2020-12-22 13:47:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure irqpoll_out_completed [2020-12-22 13:47:11,657 INFO L138 BoogieDeclarations]: Found implementation of procedure irqpoll_out_completed [2020-12-22 13:47:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_15 [2020-12-22 13:47:11,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_15 [2020-12-22 13:47:11,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-22 13:47:11,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-12-22 13:47:11,658 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_enable_sdio_irq [2020-12-22 13:47:11,658 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_enable_sdio_irq [2020-12-22 13:47:11,658 INFO L130 BoogieDeclarations]: Found specification of procedure command_out_completed [2020-12-22 13:47:11,658 INFO L138 BoogieDeclarations]: Found implementation of procedure command_out_completed [2020-12-22 13:47:11,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2020-12-22 13:47:11,659 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_cmndwork_thread [2020-12-22 13:47:11,659 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_cmndwork_thread [2020-12-22 13:47:11,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-12-22 13:47:11,659 INFO L130 BoogieDeclarations]: Found specification of procedure send_command [2020-12-22 13:47:11,659 INFO L138 BoogieDeclarations]: Found implementation of procedure send_command [2020-12-22 13:47:11,659 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-22 13:47:11,660 INFO L130 BoogieDeclarations]: Found specification of procedure send_irqpoll [2020-12-22 13:47:11,660 INFO L138 BoogieDeclarations]: Found implementation of procedure send_irqpoll [2020-12-22 13:47:11,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-22 13:47:11,660 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_32 [2020-12-22 13:47:11,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_32 [2020-12-22 13:47:11,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 13:47:11,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-22 13:47:11,660 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 13:47:11,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2020-12-22 13:47:11,661 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_pollwork_thread [2020-12-22 13:47:11,661 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_pollwork_thread [2020-12-22 13:47:11,661 INFO L130 BoogieDeclarations]: Found specification of procedure __do_poll [2020-12-22 13:47:11,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __do_poll [2020-12-22 13:47:11,661 INFO L130 BoogieDeclarations]: Found specification of procedure __command_write_data [2020-12-22 13:47:11,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_write_data [2020-12-22 13:47:11,662 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2020-12-22 13:47:11,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 13:47:11,662 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2020-12-22 13:47:11,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 13:47:11,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 13:48:02,049 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 13:48:02,049 INFO L299 CfgBuilder]: Removed 12774 assume(true) statements. [2020-12-22 13:48:02,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:48:02 BoogieIcfgContainer [2020-12-22 13:48:02,061 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 13:48:02,062 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 13:48:02,063 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 13:48:02,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 13:48:02,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 01:47:02" (1/3) ... [2020-12-22 13:48:02,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38748e4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:48:02, skipping insertion in model container [2020-12-22 13:48:02,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 01:47:05" (2/3) ... [2020-12-22 13:48:02,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38748e4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 01:48:02, skipping insertion in model container [2020-12-22 13:48:02,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 01:48:02" (3/3) ... [2020-12-22 13:48:02,071 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-063f96c-1-144_2a-drivers--mmc--host--vub300.ko.unsigned-entry_point_ldv-val-v0.8.cil.out.i [2020-12-22 13:48:02,078 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 13:48:02,087 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-12-22 13:48:02,104 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-12-22 13:48:02,165 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 13:48:02,165 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 13:48:02,165 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 13:48:02,166 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 13:48:02,166 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 13:48:02,166 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 13:48:02,166 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 13:48:02,166 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 13:48:02,329 INFO L276 IsEmpty]: Start isEmpty. Operand 9787 states. [2020-12-22 13:48:02,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-22 13:48:02,363 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:48:02,364 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] [2020-12-22 13:48:02,366 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:48:02,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:48:02,374 INFO L82 PathProgramCache]: Analyzing trace with hash -693416129, now seen corresponding path program 1 times [2020-12-22 13:48:02,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:48:02,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343366045] [2020-12-22 13:48:02,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:48:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:48:03,172 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 13:48:03,174 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343366045] [2020-12-22 13:48:03,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:48:03,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 13:48:03,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744874506] [2020-12-22 13:48:03,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 13:48:03,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:48:03,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 13:48:03,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 13:48:03,209 INFO L87 Difference]: Start difference. First operand 9787 states. Second operand 2 states. [2020-12-22 13:48:03,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:48:03,884 INFO L93 Difference]: Finished difference Result 19570 states and 28655 transitions. [2020-12-22 13:48:03,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 13:48:03,885 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 47 [2020-12-22 13:48:03,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:48:03,977 INFO L225 Difference]: With dead ends: 19570 [2020-12-22 13:48:03,977 INFO L226 Difference]: Without dead ends: 9774 [2020-12-22 13:48:04,014 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 13:48:04,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9774 states. [2020-12-22 13:48:04,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9774 to 9774. [2020-12-22 13:48:04,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9774 states. [2020-12-22 13:48:04,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9774 states to 9774 states and 14269 transitions. [2020-12-22 13:48:04,412 INFO L78 Accepts]: Start accepts. Automaton has 9774 states and 14269 transitions. Word has length 47 [2020-12-22 13:48:04,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:48:04,412 INFO L481 AbstractCegarLoop]: Abstraction has 9774 states and 14269 transitions. [2020-12-22 13:48:04,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 13:48:04,413 INFO L276 IsEmpty]: Start isEmpty. Operand 9774 states and 14269 transitions. [2020-12-22 13:48:04,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-12-22 13:48:04,417 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:48:04,417 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] [2020-12-22 13:48:04,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 13:48:04,418 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:48:04,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:48:04,419 INFO L82 PathProgramCache]: Analyzing trace with hash 60748855, now seen corresponding path program 1 times [2020-12-22 13:48:04,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:48:04,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512287012] [2020-12-22 13:48:04,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:48:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:48:04,855 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 13:48:04,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512287012] [2020-12-22 13:48:04,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:48:04,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 13:48:04,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690672281] [2020-12-22 13:48:04,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:48:04,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:48:04,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:48:04,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:48:04,859 INFO L87 Difference]: Start difference. First operand 9774 states and 14269 transitions. Second operand 3 states. [2020-12-22 13:48:20,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:48:20,831 INFO L93 Difference]: Finished difference Result 29264 states and 42898 transitions. [2020-12-22 13:48:20,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:48:20,833 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-12-22 13:48:20,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:48:20,950 INFO L225 Difference]: With dead ends: 29264 [2020-12-22 13:48:20,950 INFO L226 Difference]: Without dead ends: 19518 [2020-12-22 13:48:20,983 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 13:48:21,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19518 states. [2020-12-22 13:48:21,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19518 to 19506. [2020-12-22 13:48:21,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19506 states. [2020-12-22 13:48:21,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19506 states to 19506 states and 27914 transitions. [2020-12-22 13:48:21,611 INFO L78 Accepts]: Start accepts. Automaton has 19506 states and 27914 transitions. Word has length 47 [2020-12-22 13:48:21,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:48:21,614 INFO L481 AbstractCegarLoop]: Abstraction has 19506 states and 27914 transitions. [2020-12-22 13:48:21,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:48:21,614 INFO L276 IsEmpty]: Start isEmpty. Operand 19506 states and 27914 transitions. [2020-12-22 13:48:21,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-22 13:48:21,624 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:48:21,624 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] [2020-12-22 13:48:21,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 13:48:21,624 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:48:21,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:48:21,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1883257875, now seen corresponding path program 1 times [2020-12-22 13:48:21,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:48:21,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942804271] [2020-12-22 13:48:21,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:48:21,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:48:22,073 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 13:48:22,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942804271] [2020-12-22 13:48:22,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:48:22,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 13:48:22,075 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98560878] [2020-12-22 13:48:22,075 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:48:22,075 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:48:22,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:48:22,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:48:22,077 INFO L87 Difference]: Start difference. First operand 19506 states and 27914 transitions. Second operand 3 states. [2020-12-22 13:48:32,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:48:32,714 INFO L93 Difference]: Finished difference Result 57808 states and 82833 transitions. [2020-12-22 13:48:32,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:48:32,715 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2020-12-22 13:48:32,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:48:32,853 INFO L225 Difference]: With dead ends: 57808 [2020-12-22 13:48:32,853 INFO L226 Difference]: Without dead ends: 38330 [2020-12-22 13:48:32,921 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 13:48:32,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38330 states. [2020-12-22 13:48:34,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38330 to 38319. [2020-12-22 13:48:34,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38319 states. [2020-12-22 13:48:34,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38319 states to 38319 states and 53983 transitions. [2020-12-22 13:48:34,369 INFO L78 Accepts]: Start accepts. Automaton has 38319 states and 53983 transitions. Word has length 48 [2020-12-22 13:48:34,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:48:34,370 INFO L481 AbstractCegarLoop]: Abstraction has 38319 states and 53983 transitions. [2020-12-22 13:48:34,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:48:34,370 INFO L276 IsEmpty]: Start isEmpty. Operand 38319 states and 53983 transitions. [2020-12-22 13:48:34,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-12-22 13:48:34,375 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:48:34,375 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] [2020-12-22 13:48:34,375 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 13:48:34,375 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:48:34,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:48:34,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1748504639, now seen corresponding path program 1 times [2020-12-22 13:48:34,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:48:34,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589406447] [2020-12-22 13:48:34,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:48:34,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:48:34,646 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 13:48:34,647 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589406447] [2020-12-22 13:48:34,647 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:48:34,647 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 13:48:34,647 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346228260] [2020-12-22 13:48:34,648 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:48:34,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:48:34,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:48:34,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:48:34,649 INFO L87 Difference]: Start difference. First operand 38319 states and 53983 transitions. Second operand 3 states. [2020-12-22 13:48:38,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:48:38,869 INFO L93 Difference]: Finished difference Result 38324 states and 53987 transitions. [2020-12-22 13:48:38,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:48:38,870 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 49 [2020-12-22 13:48:38,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:48:38,986 INFO L225 Difference]: With dead ends: 38324 [2020-12-22 13:48:38,987 INFO L226 Difference]: Without dead ends: 38322 [2020-12-22 13:48:39,000 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 13:48:39,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38322 states. [2020-12-22 13:48:40,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38322 to 38320. [2020-12-22 13:48:40,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38320 states. [2020-12-22 13:48:40,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38320 states to 38320 states and 53984 transitions. [2020-12-22 13:48:40,270 INFO L78 Accepts]: Start accepts. Automaton has 38320 states and 53984 transitions. Word has length 49 [2020-12-22 13:48:40,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:48:40,272 INFO L481 AbstractCegarLoop]: Abstraction has 38320 states and 53984 transitions. [2020-12-22 13:48:40,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:48:40,272 INFO L276 IsEmpty]: Start isEmpty. Operand 38320 states and 53984 transitions. [2020-12-22 13:48:40,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-12-22 13:48:40,276 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:48:40,276 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:48:40,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 13:48:40,277 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:48:40,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:48:40,277 INFO L82 PathProgramCache]: Analyzing trace with hash 1630974429, now seen corresponding path program 1 times [2020-12-22 13:48:40,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:48:40,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13027251] [2020-12-22 13:48:40,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:48:40,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:48:40,648 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 13:48:40,648 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13027251] [2020-12-22 13:48:40,649 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:48:40,649 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 13:48:40,649 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654513480] [2020-12-22 13:48:40,649 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:48:40,650 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:48:40,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:48:40,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:48:40,651 INFO L87 Difference]: Start difference. First operand 38320 states and 53984 transitions. Second operand 3 states. [2020-12-22 13:48:41,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:48:41,529 INFO L93 Difference]: Finished difference Result 38320 states and 53984 transitions. [2020-12-22 13:48:41,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:48:41,530 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 50 [2020-12-22 13:48:41,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:48:41,642 INFO L225 Difference]: With dead ends: 38320 [2020-12-22 13:48:41,643 INFO L226 Difference]: Without dead ends: 38318 [2020-12-22 13:48:41,654 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 13:48:41,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38318 states. [2020-12-22 13:48:42,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38318 to 38318. [2020-12-22 13:48:42,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38318 states. [2020-12-22 13:48:42,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38318 states to 38318 states and 53982 transitions. [2020-12-22 13:48:42,941 INFO L78 Accepts]: Start accepts. Automaton has 38318 states and 53982 transitions. Word has length 50 [2020-12-22 13:48:42,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:48:42,941 INFO L481 AbstractCegarLoop]: Abstraction has 38318 states and 53982 transitions. [2020-12-22 13:48:42,941 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:48:42,942 INFO L276 IsEmpty]: Start isEmpty. Operand 38318 states and 53982 transitions. [2020-12-22 13:48:42,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-22 13:48:42,945 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:48:42,945 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] [2020-12-22 13:48:42,946 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 13:48:42,946 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:48:42,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:48:42,947 INFO L82 PathProgramCache]: Analyzing trace with hash -979356853, now seen corresponding path program 1 times [2020-12-22 13:48:42,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:48:42,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663652991] [2020-12-22 13:48:42,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:48:43,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:48:43,133 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 13:48:43,134 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663652991] [2020-12-22 13:48:43,134 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:48:43,134 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 13:48:43,135 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30151254] [2020-12-22 13:48:43,136 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:48:43,137 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:48:43,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:48:43,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:48:43,138 INFO L87 Difference]: Start difference. First operand 38318 states and 53982 transitions. Second operand 3 states. [2020-12-22 13:48:44,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:48:44,372 INFO L93 Difference]: Finished difference Result 38318 states and 53982 transitions. [2020-12-22 13:48:44,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:48:44,373 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-12-22 13:48:44,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:48:44,468 INFO L225 Difference]: With dead ends: 38318 [2020-12-22 13:48:44,468 INFO L226 Difference]: Without dead ends: 33281 [2020-12-22 13:48:44,488 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 13:48:44,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33281 states. [2020-12-22 13:48:45,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33281 to 33281. [2020-12-22 13:48:45,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33281 states. [2020-12-22 13:48:45,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33281 states to 33281 states and 46710 transitions. [2020-12-22 13:48:45,651 INFO L78 Accepts]: Start accepts. Automaton has 33281 states and 46710 transitions. Word has length 51 [2020-12-22 13:48:45,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:48:45,652 INFO L481 AbstractCegarLoop]: Abstraction has 33281 states and 46710 transitions. [2020-12-22 13:48:45,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:48:45,652 INFO L276 IsEmpty]: Start isEmpty. Operand 33281 states and 46710 transitions. [2020-12-22 13:48:45,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-12-22 13:48:45,674 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:48:45,674 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:48:45,674 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 13:48:45,674 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:48:45,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:48:45,675 INFO L82 PathProgramCache]: Analyzing trace with hash 2132834545, now seen corresponding path program 1 times [2020-12-22 13:48:45,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:48:45,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257975641] [2020-12-22 13:48:45,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:48:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:48:46,013 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 13:48:46,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257975641] [2020-12-22 13:48:46,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:48:46,015 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:48:46,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394837499] [2020-12-22 13:48:46,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:48:46,016 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:48:46,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:48:46,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:48:46,017 INFO L87 Difference]: Start difference. First operand 33281 states and 46710 transitions. Second operand 3 states. [2020-12-22 13:48:47,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:48:47,546 INFO L93 Difference]: Finished difference Result 79934 states and 112565 transitions. [2020-12-22 13:48:47,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:48:47,552 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2020-12-22 13:48:47,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:48:47,687 INFO L225 Difference]: With dead ends: 79934 [2020-12-22 13:48:47,687 INFO L226 Difference]: Without dead ends: 46681 [2020-12-22 13:48:47,745 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 13:48:47,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46681 states. [2020-12-22 13:48:49,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46681 to 46663. [2020-12-22 13:48:49,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46663 states. [2020-12-22 13:48:49,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46663 states to 46663 states and 65864 transitions. [2020-12-22 13:48:49,637 INFO L78 Accepts]: Start accepts. Automaton has 46663 states and 65864 transitions. Word has length 79 [2020-12-22 13:48:49,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:48:49,639 INFO L481 AbstractCegarLoop]: Abstraction has 46663 states and 65864 transitions. [2020-12-22 13:48:49,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:48:49,640 INFO L276 IsEmpty]: Start isEmpty. Operand 46663 states and 65864 transitions. [2020-12-22 13:48:49,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-12-22 13:48:49,688 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:48:49,689 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:48:49,689 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 13:48:49,689 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:48:49,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:48:49,690 INFO L82 PathProgramCache]: Analyzing trace with hash 2068525833, now seen corresponding path program 1 times [2020-12-22 13:48:49,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:48:49,691 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532843141] [2020-12-22 13:48:49,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:48:49,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:48:49,950 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 13:48:49,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532843141] [2020-12-22 13:48:49,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:48:49,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 13:48:49,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777182036] [2020-12-22 13:48:49,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 13:48:49,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:48:49,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 13:48:49,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 13:48:49,954 INFO L87 Difference]: Start difference. First operand 46663 states and 65864 transitions. Second operand 4 states. [2020-12-22 13:48:52,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:48:52,315 INFO L93 Difference]: Finished difference Result 113992 states and 160623 transitions. [2020-12-22 13:48:52,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 13:48:52,316 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 105 [2020-12-22 13:48:52,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:48:52,526 INFO L225 Difference]: With dead ends: 113992 [2020-12-22 13:48:52,527 INFO L226 Difference]: Without dead ends: 67357 [2020-12-22 13:48:52,635 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 13:48:52,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67357 states. [2020-12-22 13:48:55,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67357 to 46677. [2020-12-22 13:48:55,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46677 states. [2020-12-22 13:48:55,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46677 states to 46677 states and 65878 transitions. [2020-12-22 13:48:55,365 INFO L78 Accepts]: Start accepts. Automaton has 46677 states and 65878 transitions. Word has length 105 [2020-12-22 13:48:55,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:48:55,366 INFO L481 AbstractCegarLoop]: Abstraction has 46677 states and 65878 transitions. [2020-12-22 13:48:55,366 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 13:48:55,366 INFO L276 IsEmpty]: Start isEmpty. Operand 46677 states and 65878 transitions. [2020-12-22 13:48:55,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-12-22 13:48:55,398 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:48:55,399 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:48:55,399 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 13:48:55,399 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:48:55,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:48:55,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1959600286, now seen corresponding path program 1 times [2020-12-22 13:48:55,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:48:55,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449410925] [2020-12-22 13:48:55,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:48:55,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:48:55,643 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 13:48:55,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449410925] [2020-12-22 13:48:55,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:48:55,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:48:55,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296466184] [2020-12-22 13:48:55,645 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:48:55,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:48:55,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:48:55,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:48:55,646 INFO L87 Difference]: Start difference. First operand 46677 states and 65878 transitions. Second operand 3 states. [2020-12-22 13:48:59,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:48:59,579 INFO L93 Difference]: Finished difference Result 107278 states and 152108 transitions. [2020-12-22 13:48:59,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:48:59,580 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2020-12-22 13:48:59,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:48:59,941 INFO L225 Difference]: With dead ends: 107278 [2020-12-22 13:48:59,941 INFO L226 Difference]: Without dead ends: 60629 [2020-12-22 13:49:00,072 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 13:49:00,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60629 states. [2020-12-22 13:49:02,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60629 to 60629. [2020-12-22 13:49:02,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60629 states. [2020-12-22 13:49:02,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60629 states to 60629 states and 86244 transitions. [2020-12-22 13:49:02,252 INFO L78 Accepts]: Start accepts. Automaton has 60629 states and 86244 transitions. Word has length 109 [2020-12-22 13:49:02,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:49:02,252 INFO L481 AbstractCegarLoop]: Abstraction has 60629 states and 86244 transitions. [2020-12-22 13:49:02,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:49:02,252 INFO L276 IsEmpty]: Start isEmpty. Operand 60629 states and 86244 transitions. [2020-12-22 13:49:02,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-12-22 13:49:02,321 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:49:02,321 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 13:49:02,321 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 13:49:02,321 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:49:02,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:49:02,322 INFO L82 PathProgramCache]: Analyzing trace with hash 198181199, now seen corresponding path program 1 times [2020-12-22 13:49:02,322 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:49:02,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385363921] [2020-12-22 13:49:02,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:49:02,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:49:02,522 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-12-22 13:49:02,522 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385363921] [2020-12-22 13:49:02,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:49:02,523 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 13:49:02,523 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970247412] [2020-12-22 13:49:02,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 13:49:02,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:49:02,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 13:49:02,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 13:49:02,524 INFO L87 Difference]: Start difference. First operand 60629 states and 86244 transitions. Second operand 3 states. [2020-12-22 13:49:06,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:49:06,363 INFO L93 Difference]: Finished difference Result 101727 states and 144146 transitions. [2020-12-22 13:49:06,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 13:49:06,364 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 124 [2020-12-22 13:49:06,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:49:06,463 INFO L225 Difference]: With dead ends: 101727 [2020-12-22 13:49:06,463 INFO L226 Difference]: Without dead ends: 41124 [2020-12-22 13:49:06,557 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 13:49:06,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41124 states. [2020-12-22 13:49:07,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41124 to 41118. [2020-12-22 13:49:07,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41118 states. [2020-12-22 13:49:08,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41118 states to 41118 states and 57921 transitions. [2020-12-22 13:49:08,064 INFO L78 Accepts]: Start accepts. Automaton has 41118 states and 57921 transitions. Word has length 124 [2020-12-22 13:49:08,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:49:08,064 INFO L481 AbstractCegarLoop]: Abstraction has 41118 states and 57921 transitions. [2020-12-22 13:49:08,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 13:49:08,064 INFO L276 IsEmpty]: Start isEmpty. Operand 41118 states and 57921 transitions. [2020-12-22 13:49:08,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2020-12-22 13:49:08,117 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:49:08,118 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:49:08,118 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 13:49:08,119 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:49:08,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:49:08,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1019380039, now seen corresponding path program 1 times [2020-12-22 13:49:08,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:49:08,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398245430] [2020-12-22 13:49:08,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:49:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:49:08,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-12-22 13:49:08,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:49:08,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-12-22 13:49:08,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:49:08,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-12-22 13:49:08,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:49:08,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-12-22 13:49:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:49:08,596 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 13:49:08,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398245430] [2020-12-22 13:49:08,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:49:08,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 13:49:08,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769755776] [2020-12-22 13:49:08,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 13:49:08,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:49:08,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 13:49:08,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 13:49:08,599 INFO L87 Difference]: Start difference. First operand 41118 states and 57921 transitions. Second operand 6 states. [2020-12-22 13:50:09,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 13:50:09,426 INFO L93 Difference]: Finished difference Result 82804 states and 116533 transitions. [2020-12-22 13:50:09,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 13:50:09,428 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 131 [2020-12-22 13:50:09,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 13:50:09,519 INFO L225 Difference]: With dead ends: 82804 [2020-12-22 13:50:09,519 INFO L226 Difference]: Without dead ends: 41714 [2020-12-22 13:50:09,589 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-12-22 13:50:09,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41714 states. [2020-12-22 13:50:11,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41714 to 41376. [2020-12-22 13:50:11,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41376 states. [2020-12-22 13:50:11,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41376 states to 41376 states and 58208 transitions. [2020-12-22 13:50:11,387 INFO L78 Accepts]: Start accepts. Automaton has 41376 states and 58208 transitions. Word has length 131 [2020-12-22 13:50:11,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 13:50:11,388 INFO L481 AbstractCegarLoop]: Abstraction has 41376 states and 58208 transitions. [2020-12-22 13:50:11,388 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 13:50:11,388 INFO L276 IsEmpty]: Start isEmpty. Operand 41376 states and 58208 transitions. [2020-12-22 13:50:11,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-12-22 13:50:11,446 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 13:50:11,446 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:50:11,446 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 13:50:11,447 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 13:50:11,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 13:50:11,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1209558456, now seen corresponding path program 1 times [2020-12-22 13:50:11,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 13:50:11,448 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650924392] [2020-12-22 13:50:11,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 13:50:11,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:50:11,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-12-22 13:50:11,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:50:11,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-12-22 13:50:11,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:50:11,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-12-22 13:50:11,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:50:11,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-12-22 13:50:11,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 13:50:12,144 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 13:50:12,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650924392] [2020-12-22 13:50:12,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 13:50:12,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 13:50:12,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812071275] [2020-12-22 13:50:12,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 13:50:12,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 13:50:12,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 13:50:12,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-12-22 13:50:12,147 INFO L87 Difference]: Start difference. First operand 41376 states and 58208 transitions. Second operand 6 states.