/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:09:03,643 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:09:03,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:09:03,700 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:09:03,701 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:09:03,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:09:03,709 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:09:03,717 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:09:03,720 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:09:03,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:09:03,728 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:09:03,730 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:09:03,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:09:03,734 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:09:03,736 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:09:03,742 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:09:03,744 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:09:03,746 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:09:03,750 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:09:03,760 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:09:03,765 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:09:03,767 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:09:03,769 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:09:03,772 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:09:03,781 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:09:03,782 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:09:03,782 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:09:03,785 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:09:03,785 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:09:03,787 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:09:03,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:09:03,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:09:03,790 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:09:03,791 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:09:03,793 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:09:03,793 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:09:03,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:09:03,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:09:03,794 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:09:03,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:09:03,796 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:09:03,797 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:09:03,853 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:09:03,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:09:03,854 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:09:03,854 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:09:03,855 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:09:03,855 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:09:03,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:09:03,856 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:09:03,856 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:09:03,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:09:03,856 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:09:03,857 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:09:03,857 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:09:03,857 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:09:03,857 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:09:03,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:09:03,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:09:03,858 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:09:03,858 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:09:03,858 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:09:03,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:09:03,858 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:09:03,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:09:03,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:09:03,859 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:09:03,859 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:09:03,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:09:03,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:09:03,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:09:03,860 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:09:03,860 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:09:03,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:09:03,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:09:03,861 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:09:04,250 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:09:04,291 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:09:04,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:09:04,297 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:09:04,298 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:09:04,299 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i [2022-10-15 21:09:04,394 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d19a4db5/3e69776a311948db8c30d334dad05b99/FLAGe76da0259 [2022-10-15 21:09:05,512 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:09:05,512 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i [2022-10-15 21:09:05,554 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d19a4db5/3e69776a311948db8c30d334dad05b99/FLAGe76da0259 [2022-10-15 21:09:05,926 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d19a4db5/3e69776a311948db8c30d334dad05b99 [2022-10-15 21:09:05,929 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:09:05,936 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:09:05,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:09:05,938 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:09:05,942 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:09:05,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:09:05" (1/1) ... [2022-10-15 21:09:05,945 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4961e33f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:05, skipping insertion in model container [2022-10-15 21:09:05,945 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:09:05" (1/1) ... [2022-10-15 21:09:05,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:09:06,165 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:09:08,859 WARN L230 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-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i[269371,269384] [2022-10-15 21:09:08,984 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:09:09,018 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:09:09,543 WARN L230 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-consumption/linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i[269371,269384] [2022-10-15 21:09:09,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:09:09,732 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:09:09,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:09 WrapperNode [2022-10-15 21:09:09,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:09:09,734 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:09:09,734 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:09:09,735 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:09:09,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:09" (1/1) ... [2022-10-15 21:09:09,912 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:09" (1/1) ... [2022-10-15 21:09:10,276 INFO L138 Inliner]: procedures = 282, calls = 3066, calls flagged for inlining = 129, calls inlined = 120, statements flattened = 7138 [2022-10-15 21:09:10,277 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:09:10,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:09:10,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:09:10,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:09:10,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:09" (1/1) ... [2022-10-15 21:09:10,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:09" (1/1) ... [2022-10-15 21:09:10,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:09" (1/1) ... [2022-10-15 21:09:10,371 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:09" (1/1) ... [2022-10-15 21:09:10,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:09" (1/1) ... [2022-10-15 21:09:10,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:09" (1/1) ... [2022-10-15 21:09:10,819 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:09" (1/1) ... [2022-10-15 21:09:10,842 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:09" (1/1) ... [2022-10-15 21:09:10,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:09:10,899 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:09:10,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:09:10,899 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:09:10,900 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:09" (1/1) ... [2022-10-15 21:09:10,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:09:10,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:09:10,939 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 21:09:10,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 21:09:11,004 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2022-10-15 21:09:11,004 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_del [2022-10-15 21:09:11,004 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_del [2022-10-15 21:09:11,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 21:09:11,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 21:09:11,005 INFO L130 BoogieDeclarations]: Found specification of procedure driver_remove_file [2022-10-15 21:09:11,005 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_remove_file [2022-10-15 21:09:11,005 INFO L130 BoogieDeclarations]: Found specification of procedure find_partition [2022-10-15 21:09:11,005 INFO L138 BoogieDeclarations]: Found implementation of procedure find_partition [2022-10-15 21:09:11,005 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-10-15 21:09:11,005 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-10-15 21:09:11,006 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_block_when_processing_errors [2022-10-15 21:09:11,006 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_block_when_processing_errors [2022-10-15 21:09:11,006 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-10-15 21:09:11,006 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-10-15 21:09:11,006 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-10-15 21:09:11,006 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-10-15 21:09:11,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:09:11,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:09:11,007 INFO L130 BoogieDeclarations]: Found specification of procedure class_unregister [2022-10-15 21:09:11,007 INFO L138 BoogieDeclarations]: Found implementation of procedure class_unregister [2022-10-15 21:09:11,007 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-15 21:09:11,007 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-15 21:09:11,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:09:11,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:09:11,008 INFO L130 BoogieDeclarations]: Found specification of procedure tape_name [2022-10-15 21:09:11,008 INFO L138 BoogieDeclarations]: Found implementation of procedure tape_name [2022-10-15 21:09:11,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2022-10-15 21:09:11,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2022-10-15 21:09:11,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-15 21:09:11,009 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-15 21:09:11,009 INFO L130 BoogieDeclarations]: Found specification of procedure st_int_ioctl [2022-10-15 21:09:11,009 INFO L138 BoogieDeclarations]: Found implementation of procedure st_int_ioctl [2022-10-15 21:09:11,009 INFO L130 BoogieDeclarations]: Found specification of procedure blk_queue_rq_timeout [2022-10-15 21:09:11,009 INFO L138 BoogieDeclarations]: Found implementation of procedure blk_queue_rq_timeout [2022-10-15 21:09:11,009 INFO L130 BoogieDeclarations]: Found specification of procedure set_mode_densblk [2022-10-15 21:09:11,010 INFO L138 BoogieDeclarations]: Found implementation of procedure set_mode_densblk [2022-10-15 21:09:11,010 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-10-15 21:09:11,010 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-10-15 21:09:11,010 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_ioctl [2022-10-15 21:09:11,011 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_ioctl [2022-10-15 21:09:11,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:09:11,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_st_ref_mutex [2022-10-15 21:09:11,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_st_ref_mutex [2022-10-15 21:09:11,011 INFO L130 BoogieDeclarations]: Found specification of procedure read_mode_page [2022-10-15 21:09:11,011 INFO L138 BoogieDeclarations]: Found implementation of procedure read_mode_page [2022-10-15 21:09:11,012 INFO L130 BoogieDeclarations]: Found specification of procedure do_door_lock [2022-10-15 21:09:11,012 INFO L138 BoogieDeclarations]: Found implementation of procedure do_door_lock [2022-10-15 21:09:11,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:09:11,012 INFO L130 BoogieDeclarations]: Found specification of procedure put_page [2022-10-15 21:09:11,012 INFO L138 BoogieDeclarations]: Found implementation of procedure put_page [2022-10-15 21:09:11,012 INFO L130 BoogieDeclarations]: Found specification of procedure st_do_scsi [2022-10-15 21:09:11,013 INFO L138 BoogieDeclarations]: Found implementation of procedure st_do_scsi [2022-10-15 21:09:11,013 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2022-10-15 21:09:11,013 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-10-15 21:09:11,013 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-10-15 21:09:11,013 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2022-10-15 21:09:11,013 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2022-10-15 21:09:11,014 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2022-10-15 21:09:11,014 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2022-10-15 21:09:11,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:09:11,014 INFO L130 BoogieDeclarations]: Found specification of procedure st_release_request [2022-10-15 21:09:11,014 INFO L138 BoogieDeclarations]: Found implementation of procedure st_release_request [2022-10-15 21:09:11,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:09:11,015 INFO L130 BoogieDeclarations]: Found specification of procedure remove_cdevs [2022-10-15 21:09:11,015 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_cdevs [2022-10-15 21:09:11,015 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-15 21:09:11,015 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-15 21:09:11,015 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-10-15 21:09:11,015 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-10-15 21:09:11,016 INFO L130 BoogieDeclarations]: Found specification of procedure get_location [2022-10-15 21:09:11,016 INFO L138 BoogieDeclarations]: Found implementation of procedure get_location [2022-10-15 21:09:11,016 INFO L130 BoogieDeclarations]: Found specification of procedure st_compression [2022-10-15 21:09:11,016 INFO L138 BoogieDeclarations]: Found implementation of procedure st_compression [2022-10-15 21:09:11,016 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_autopm_put_device [2022-10-15 21:09:11,017 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_autopm_put_device [2022-10-15 21:09:11,017 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2022-10-15 21:09:11,017 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2022-10-15 21:09:11,017 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-15 21:09:11,017 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-15 21:09:11,017 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-15 21:09:11,017 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-15 21:09:11,018 INFO L130 BoogieDeclarations]: Found specification of procedure check_tape [2022-10-15 21:09:11,018 INFO L138 BoogieDeclarations]: Found implementation of procedure check_tape [2022-10-15 21:09:11,018 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-10-15 21:09:11,018 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-10-15 21:09:11,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2022-10-15 21:09:11,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2022-10-15 21:09:11,019 INFO L130 BoogieDeclarations]: Found specification of procedure switch_partition [2022-10-15 21:09:11,019 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_partition [2022-10-15 21:09:11,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_scsi_tape [2022-10-15 21:09:11,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_scsi_tape [2022-10-15 21:09:11,019 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 21:09:11,020 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-15 21:09:11,020 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-15 21:09:11,020 INFO L130 BoogieDeclarations]: Found specification of procedure setup_buffering [2022-10-15 21:09:11,020 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_buffering [2022-10-15 21:09:11,020 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-10-15 21:09:11,020 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-10-15 21:09:11,021 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_tape_put [2022-10-15 21:09:11,021 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_tape_put [2022-10-15 21:09:11,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:09:11,021 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_cmd_ioctl [2022-10-15 21:09:11,021 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_cmd_ioctl [2022-10-15 21:09:11,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:09:11,022 INFO L130 BoogieDeclarations]: Found specification of procedure create_one_cdev [2022-10-15 21:09:11,022 INFO L138 BoogieDeclarations]: Found implementation of procedure create_one_cdev [2022-10-15 21:09:11,022 INFO L130 BoogieDeclarations]: Found specification of procedure queue_dma_alignment [2022-10-15 21:09:11,022 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_dma_alignment [2022-10-15 21:09:11,022 INFO L130 BoogieDeclarations]: Found specification of procedure do_load_unload [2022-10-15 21:09:11,022 INFO L138 BoogieDeclarations]: Found implementation of procedure do_load_unload [2022-10-15 21:09:11,023 INFO L130 BoogieDeclarations]: Found specification of procedure st_flush_write_buffer [2022-10-15 21:09:11,023 INFO L138 BoogieDeclarations]: Found implementation of procedure st_flush_write_buffer [2022-10-15 21:09:11,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-15 21:09:11,023 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-15 21:09:11,023 INFO L130 BoogieDeclarations]: Found specification of procedure enlarge_buffer [2022-10-15 21:09:11,023 INFO L138 BoogieDeclarations]: Found implementation of procedure enlarge_buffer [2022-10-15 21:09:11,024 INFO L130 BoogieDeclarations]: Found specification of procedure cross_eof [2022-10-15 21:09:11,024 INFO L138 BoogieDeclarations]: Found implementation of procedure cross_eof [2022-10-15 21:09:11,024 INFO L130 BoogieDeclarations]: Found specification of procedure st_chk_result [2022-10-15 21:09:11,024 INFO L138 BoogieDeclarations]: Found implementation of procedure st_chk_result [2022-10-15 21:09:11,024 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2022-10-15 21:09:11,024 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2022-10-15 21:09:11,025 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-15 21:09:11,025 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-15 21:09:11,025 INFO L130 BoogieDeclarations]: Found specification of procedure write_behind_check [2022-10-15 21:09:11,025 INFO L138 BoogieDeclarations]: Found implementation of procedure write_behind_check [2022-10-15 21:09:11,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:09:11,025 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-10-15 21:09:11,026 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-10-15 21:09:11,026 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2022-10-15 21:09:11,026 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2022-10-15 21:09:11,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 21:09:11,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 21:09:11,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_st_ref_mutex [2022-10-15 21:09:11,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_st_ref_mutex [2022-10-15 21:09:11,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:09:11,027 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-10-15 21:09:11,027 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-10-15 21:09:11,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:09:11,027 INFO L130 BoogieDeclarations]: Found specification of procedure flush_buffer [2022-10-15 21:09:11,028 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_buffer [2022-10-15 21:09:11,028 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2022-10-15 21:09:11,028 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2022-10-15 21:09:11,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:09:11,028 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-15 21:09:11,028 INFO L130 BoogieDeclarations]: Found specification of procedure driver_create_file [2022-10-15 21:09:11,029 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_create_file [2022-10-15 21:09:11,029 INFO L130 BoogieDeclarations]: Found specification of procedure release_buffering [2022-10-15 21:09:11,029 INFO L138 BoogieDeclarations]: Found implementation of procedure release_buffering [2022-10-15 21:09:11,029 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-10-15 21:09:11,029 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-10-15 21:09:11,029 INFO L130 BoogieDeclarations]: Found specification of procedure normalize_buffer [2022-10-15 21:09:11,029 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize_buffer [2022-10-15 21:09:11,030 INFO L130 BoogieDeclarations]: Found specification of procedure write_mode_page [2022-10-15 21:09:11,030 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mode_page [2022-10-15 21:09:11,030 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-10-15 21:09:11,030 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-10-15 21:09:11,030 INFO L130 BoogieDeclarations]: Found specification of procedure rw_checks [2022-10-15 21:09:11,030 INFO L138 BoogieDeclarations]: Found implementation of procedure rw_checks [2022-10-15 21:09:11,031 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2022-10-15 21:09:11,031 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2022-10-15 21:09:11,031 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2022-10-15 21:09:11,031 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2022-10-15 21:09:11,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock_of_scsi_tape [2022-10-15 21:09:11,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock_of_scsi_tape [2022-10-15 21:09:11,031 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-10-15 21:09:11,032 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-10-15 21:09:11,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:09:11,032 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_autopm_get_device [2022-10-15 21:09:11,032 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_autopm_get_device [2022-10-15 21:09:11,032 INFO L130 BoogieDeclarations]: Found specification of procedure set_location [2022-10-15 21:09:11,032 INFO L138 BoogieDeclarations]: Found implementation of procedure set_location [2022-10-15 21:09:11,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:09:11,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:09:11,939 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:09:11,943 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:09:22,392 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:09:22,432 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:09:22,433 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 21:09:22,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:09:22 BoogieIcfgContainer [2022-10-15 21:09:22,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:09:22,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:09:22,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:09:22,453 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:09:22,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:09:05" (1/3) ... [2022-10-15 21:09:22,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b26a49f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:09:22, skipping insertion in model container [2022-10-15 21:09:22,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:09:09" (2/3) ... [2022-10-15 21:09:22,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b26a49f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:09:22, skipping insertion in model container [2022-10-15 21:09:22,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:09:22" (3/3) ... [2022-10-15 21:09:22,463 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--scsi--st.ko-ldv_main0.cil.out.i [2022-10-15 21:09:22,491 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:09:22,491 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 340 error locations. [2022-10-15 21:09:22,670 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:09:22,680 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7aaeb1c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:09:22,680 INFO L358 AbstractCegarLoop]: Starting to check reachability of 340 error locations. [2022-10-15 21:09:22,703 INFO L276 IsEmpty]: Start isEmpty. Operand has 2851 states, 2087 states have (on average 1.5879252515572593) internal successors, (3314), 2448 states have internal predecessors, (3314), 345 states have call successors, (345), 78 states have call predecessors, (345), 78 states have return successors, (345), 345 states have call predecessors, (345), 345 states have call successors, (345) [2022-10-15 21:09:22,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 21:09:22,713 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:22,714 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:09:22,715 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [flush_bufferErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, flush_bufferErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, flush_bufferErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 337 more)] === [2022-10-15 21:09:22,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:22,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1414902751, now seen corresponding path program 1 times [2022-10-15 21:09:22,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:22,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654444002] [2022-10-15 21:09:22,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:22,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:23,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:23,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:09:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:23,689 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:09:23,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:23,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654444002] [2022-10-15 21:09:23,691 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654444002] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:23,691 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:09:23,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:09:23,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60165093] [2022-10-15 21:09:23,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:23,702 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:09:23,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:23,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:09:23,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:09:23,767 INFO L87 Difference]: Start difference. First operand has 2851 states, 2087 states have (on average 1.5879252515572593) internal successors, (3314), 2448 states have internal predecessors, (3314), 345 states have call successors, (345), 78 states have call predecessors, (345), 78 states have return successors, (345), 345 states have call predecessors, (345), 345 states have call successors, (345) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 21:09:24,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:24,208 INFO L93 Difference]: Finished difference Result 5641 states and 8106 transitions. [2022-10-15 21:09:24,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:09:24,214 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2022-10-15 21:09:24,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:24,263 INFO L225 Difference]: With dead ends: 5641 [2022-10-15 21:09:24,263 INFO L226 Difference]: Without dead ends: 2766 [2022-10-15 21:09:24,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:09:24,301 INFO L413 NwaCegarLoop]: 3911 mSDtfsCounter, 3907 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3907 SdHoareTripleChecker+Valid, 3911 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:24,302 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3907 Valid, 3911 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:09:24,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2766 states. [2022-10-15 21:09:24,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2766 to 2766. [2022-10-15 21:09:24,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 2071 states have (on average 1.5470787059391597) internal successors, (3204), 2372 states have internal predecessors, (3204), 329 states have call successors, (329), 77 states have call predecessors, (329), 77 states have return successors, (329), 329 states have call predecessors, (329), 329 states have call successors, (329) [2022-10-15 21:09:24,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 3862 transitions. [2022-10-15 21:09:24,581 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 3862 transitions. Word has length 9 [2022-10-15 21:09:24,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:24,583 INFO L495 AbstractCegarLoop]: Abstraction has 2766 states and 3862 transitions. [2022-10-15 21:09:24,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 21:09:24,584 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 3862 transitions. [2022-10-15 21:09:24,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-15 21:09:24,587 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:24,587 INFO L195 NwaCegarLoop]: 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] [2022-10-15 21:09:24,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:09:24,588 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [flush_bufferErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, flush_bufferErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, flush_bufferErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 337 more)] === [2022-10-15 21:09:24,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:24,589 INFO L85 PathProgramCache]: Analyzing trace with hash -832869411, now seen corresponding path program 1 times [2022-10-15 21:09:24,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:24,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178330221] [2022-10-15 21:09:24,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:24,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:24,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:24,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:09:24,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:24,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 21:09:24,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:24,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:09:24,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:24,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178330221] [2022-10-15 21:09:24,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178330221] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:24,964 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:09:24,964 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:09:24,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58478491] [2022-10-15 21:09:24,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:24,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:09:24,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:24,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:09:24,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:09:24,968 INFO L87 Difference]: Start difference. First operand 2766 states and 3862 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 21:09:25,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:25,193 INFO L93 Difference]: Finished difference Result 5525 states and 7715 transitions. [2022-10-15 21:09:25,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:09:25,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 29 [2022-10-15 21:09:25,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:25,223 INFO L225 Difference]: With dead ends: 5525 [2022-10-15 21:09:25,223 INFO L226 Difference]: Without dead ends: 2766 [2022-10-15 21:09:25,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:09:25,247 INFO L413 NwaCegarLoop]: 3860 mSDtfsCounter, 3855 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3855 SdHoareTripleChecker+Valid, 3860 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:25,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3855 Valid, 3860 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:09:25,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2766 states. [2022-10-15 21:09:25,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2766 to 2766. [2022-10-15 21:09:25,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2766 states, 2071 states have (on average 1.546595847416707) internal successors, (3203), 2372 states have internal predecessors, (3203), 329 states have call successors, (329), 77 states have call predecessors, (329), 77 states have return successors, (329), 329 states have call predecessors, (329), 329 states have call successors, (329) [2022-10-15 21:09:25,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2766 states to 2766 states and 3861 transitions. [2022-10-15 21:09:25,447 INFO L78 Accepts]: Start accepts. Automaton has 2766 states and 3861 transitions. Word has length 29 [2022-10-15 21:09:25,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:25,448 INFO L495 AbstractCegarLoop]: Abstraction has 2766 states and 3861 transitions. [2022-10-15 21:09:25,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 21:09:25,448 INFO L276 IsEmpty]: Start isEmpty. Operand 2766 states and 3861 transitions. [2022-10-15 21:09:25,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-15 21:09:25,457 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:25,457 INFO L195 NwaCegarLoop]: 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] [2022-10-15 21:09:25,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:09:25,458 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [flush_bufferErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, flush_bufferErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, flush_bufferErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 337 more)] === [2022-10-15 21:09:25,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:25,459 INFO L85 PathProgramCache]: Analyzing trace with hash -410167585, now seen corresponding path program 1 times [2022-10-15 21:09:25,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:25,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056050354] [2022-10-15 21:09:25,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:25,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:25,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:25,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:09:25,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:25,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-15 21:09:25,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:25,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:09:25,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:25,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056050354] [2022-10-15 21:09:25,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056050354] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:25,931 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:09:25,931 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:09:25,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940067950] [2022-10-15 21:09:25,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:25,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:09:25,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:25,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:09:25,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:09:25,934 INFO L87 Difference]: Start difference. First operand 2766 states and 3861 transitions. Second operand has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:09:26,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:26,352 INFO L93 Difference]: Finished difference Result 6731 states and 9478 transitions. [2022-10-15 21:09:26,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:09:26,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2022-10-15 21:09:26,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:26,384 INFO L225 Difference]: With dead ends: 6731 [2022-10-15 21:09:26,384 INFO L226 Difference]: Without dead ends: 4018 [2022-10-15 21:09:26,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:09:26,414 INFO L413 NwaCegarLoop]: 4729 mSDtfsCounter, 1665 mSDsluCounter, 3728 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1845 SdHoareTripleChecker+Valid, 8457 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:26,416 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1845 Valid, 8457 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:09:26,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4018 states. [2022-10-15 21:09:26,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4018 to 3847. [2022-10-15 21:09:26,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3847 states, 3005 states have (on average 1.5720465890183029) internal successors, (4724), 3306 states have internal predecessors, (4724), 478 states have call successors, (478), 77 states have call predecessors, (478), 77 states have return successors, (478), 478 states have call predecessors, (478), 478 states have call successors, (478) [2022-10-15 21:09:26,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3847 states to 3847 states and 5680 transitions. [2022-10-15 21:09:26,640 INFO L78 Accepts]: Start accepts. Automaton has 3847 states and 5680 transitions. Word has length 29 [2022-10-15 21:09:26,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:26,641 INFO L495 AbstractCegarLoop]: Abstraction has 3847 states and 5680 transitions. [2022-10-15 21:09:26,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.5) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 21:09:26,641 INFO L276 IsEmpty]: Start isEmpty. Operand 3847 states and 5680 transitions. [2022-10-15 21:09:26,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-15 21:09:26,646 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:26,646 INFO L195 NwaCegarLoop]: 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] [2022-10-15 21:09:26,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:09:26,647 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting normalize_bufferErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [flush_bufferErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, flush_bufferErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, flush_bufferErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 337 more)] === [2022-10-15 21:09:26,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:26,647 INFO L85 PathProgramCache]: Analyzing trace with hash 181538117, now seen corresponding path program 1 times [2022-10-15 21:09:26,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:26,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67318777] [2022-10-15 21:09:26,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:26,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:26,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:26,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:09:26,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:26,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-15 21:09:26,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:26,984 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 21:09:26,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:26,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67318777] [2022-10-15 21:09:26,985 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [67318777] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:26,985 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:09:26,985 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:09:26,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825102017] [2022-10-15 21:09:26,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:26,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:09:26,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:26,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:09:26,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:09:26,988 INFO L87 Difference]: Start difference. First operand 3847 states and 5680 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 21:09:27,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:27,291 INFO L93 Difference]: Finished difference Result 8866 states and 13221 transitions. [2022-10-15 21:09:27,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:09:27,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2022-10-15 21:09:27,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:27,330 INFO L225 Difference]: With dead ends: 8866 [2022-10-15 21:09:27,330 INFO L226 Difference]: Without dead ends: 5072 [2022-10-15 21:09:27,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:09:27,357 INFO L413 NwaCegarLoop]: 3943 mSDtfsCounter, 994 mSDsluCounter, 3656 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1133 SdHoareTripleChecker+Valid, 7599 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:27,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1133 Valid, 7599 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:09:27,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5072 states. [2022-10-15 21:09:27,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5072 to 5021. [2022-10-15 21:09:27,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5021 states, 4029 states have (on average 1.5725986597170514) internal successors, (6336), 4331 states have internal predecessors, (6336), 630 states have call successors, (630), 77 states have call predecessors, (630), 77 states have return successors, (630), 630 states have call predecessors, (630), 630 states have call successors, (630) [2022-10-15 21:09:27,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5021 states to 5021 states and 7596 transitions. [2022-10-15 21:09:27,623 INFO L78 Accepts]: Start accepts. Automaton has 5021 states and 7596 transitions. Word has length 37 [2022-10-15 21:09:27,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:27,623 INFO L495 AbstractCegarLoop]: Abstraction has 5021 states and 7596 transitions. [2022-10-15 21:09:27,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-15 21:09:27,624 INFO L276 IsEmpty]: Start isEmpty. Operand 5021 states and 7596 transitions. [2022-10-15 21:09:27,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-15 21:09:27,627 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:27,628 INFO L195 NwaCegarLoop]: 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] [2022-10-15 21:09:27,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:09:27,628 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr194ASSERT_VIOLATIONINTEGER_OVERFLOW === [flush_bufferErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, flush_bufferErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, flush_bufferErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 337 more)] === [2022-10-15 21:09:27,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:27,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1493412184, now seen corresponding path program 1 times [2022-10-15 21:09:27,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:27,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907007351] [2022-10-15 21:09:27,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:27,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:27,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:28,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:09:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:29,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:09:29,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:29,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-15 21:09:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:29,019 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 21:09:29,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:29,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907007351] [2022-10-15 21:09:29,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907007351] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:29,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:09:29,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:09:29,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615477334] [2022-10-15 21:09:29,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:29,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:09:29,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:29,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:09:29,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:09:29,023 INFO L87 Difference]: Start difference. First operand 5021 states and 7596 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-15 21:09:33,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:09:36,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:36,247 INFO L93 Difference]: Finished difference Result 10685 states and 16225 transitions. [2022-10-15 21:09:36,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:09:36,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 54 [2022-10-15 21:09:36,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:36,295 INFO L225 Difference]: With dead ends: 10685 [2022-10-15 21:09:36,295 INFO L226 Difference]: Without dead ends: 5717 [2022-10-15 21:09:36,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-15 21:09:36,324 INFO L413 NwaCegarLoop]: 4116 mSDtfsCounter, 482 mSDsluCounter, 7051 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 39 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 11167 SdHoareTripleChecker+Invalid, 1125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:36,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 11167 Invalid, 1125 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 1085 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-10-15 21:09:36,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5717 states. [2022-10-15 21:09:36,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5717 to 5041. [2022-10-15 21:09:36,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5041 states, 4049 states have (on average 1.5717461101506545) internal successors, (6364), 4351 states have internal predecessors, (6364), 630 states have call successors, (630), 77 states have call predecessors, (630), 77 states have return successors, (630), 630 states have call predecessors, (630), 630 states have call successors, (630) [2022-10-15 21:09:36,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5041 states to 5041 states and 7624 transitions. [2022-10-15 21:09:36,770 INFO L78 Accepts]: Start accepts. Automaton has 5041 states and 7624 transitions. Word has length 54 [2022-10-15 21:09:36,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:36,773 INFO L495 AbstractCegarLoop]: Abstraction has 5041 states and 7624 transitions. [2022-10-15 21:09:36,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-15 21:09:36,774 INFO L276 IsEmpty]: Start isEmpty. Operand 5041 states and 7624 transitions. [2022-10-15 21:09:36,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2022-10-15 21:09:36,780 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:36,780 INFO L195 NwaCegarLoop]: 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] [2022-10-15 21:09:36,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 21:09:36,785 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr194ASSERT_VIOLATIONINTEGER_OVERFLOW === [flush_bufferErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, flush_bufferErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, flush_bufferErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 337 more)] === [2022-10-15 21:09:36,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:36,786 INFO L85 PathProgramCache]: Analyzing trace with hash 2100490534, now seen corresponding path program 1 times [2022-10-15 21:09:36,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:36,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318189087] [2022-10-15 21:09:36,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:36,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:37,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:37,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:09:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:37,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-15 21:09:37,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:37,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-10-15 21:09:37,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:37,448 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 21:09:37,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:37,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318189087] [2022-10-15 21:09:37,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318189087] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:37,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:09:37,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:09:37,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637496347] [2022-10-15 21:09:37,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:37,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:09:37,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:37,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:09:37,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:09:37,451 INFO L87 Difference]: Start difference. First operand 5041 states and 7624 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-15 21:09:37,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:37,761 INFO L93 Difference]: Finished difference Result 10031 states and 15183 transitions. [2022-10-15 21:09:37,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:09:37,762 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 54 [2022-10-15 21:09:37,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:37,824 INFO L225 Difference]: With dead ends: 10031 [2022-10-15 21:09:37,824 INFO L226 Difference]: Without dead ends: 5041 [2022-10-15 21:09:37,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:09:37,858 INFO L413 NwaCegarLoop]: 3856 mSDtfsCounter, 1 mSDsluCounter, 7706 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 11562 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:37,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 11562 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:09:37,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5041 states. [2022-10-15 21:09:38,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5041 to 5041. [2022-10-15 21:09:38,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5041 states, 4049 states have (on average 1.5714991355890344) internal successors, (6363), 4351 states have internal predecessors, (6363), 630 states have call successors, (630), 77 states have call predecessors, (630), 77 states have return successors, (630), 630 states have call predecessors, (630), 630 states have call successors, (630) [2022-10-15 21:09:38,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5041 states to 5041 states and 7623 transitions. [2022-10-15 21:09:38,160 INFO L78 Accepts]: Start accepts. Automaton has 5041 states and 7623 transitions. Word has length 54 [2022-10-15 21:09:38,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:38,161 INFO L495 AbstractCegarLoop]: Abstraction has 5041 states and 7623 transitions. [2022-10-15 21:09:38,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-15 21:09:38,161 INFO L276 IsEmpty]: Start isEmpty. Operand 5041 states and 7623 transitions. [2022-10-15 21:09:38,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-10-15 21:09:38,166 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:38,166 INFO L195 NwaCegarLoop]: 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] [2022-10-15 21:09:38,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 21:09:38,167 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr194ASSERT_VIOLATIONINTEGER_OVERFLOW === [flush_bufferErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, flush_bufferErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, flush_bufferErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 337 more)] === [2022-10-15 21:09:38,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:38,168 INFO L85 PathProgramCache]: Analyzing trace with hash -310031329, now seen corresponding path program 1 times [2022-10-15 21:09:38,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:38,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877454191] [2022-10-15 21:09:38,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:38,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:38,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:38,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:09:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:38,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:09:38,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:38,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-10-15 21:09:38,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:38,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 21:09:38,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:38,884 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 21:09:38,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:38,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877454191] [2022-10-15 21:09:38,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877454191] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:38,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:09:38,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:09:38,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806361780] [2022-10-15 21:09:38,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:38,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:09:38,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:38,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:09:38,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:09:38,892 INFO L87 Difference]: Start difference. First operand 5041 states and 7623 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-10-15 21:09:39,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:39,294 INFO L93 Difference]: Finished difference Result 10031 states and 15182 transitions. [2022-10-15 21:09:39,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:09:39,295 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 61 [2022-10-15 21:09:39,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:39,322 INFO L225 Difference]: With dead ends: 10031 [2022-10-15 21:09:39,322 INFO L226 Difference]: Without dead ends: 5028 [2022-10-15 21:09:39,341 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:09:39,343 INFO L413 NwaCegarLoop]: 3854 mSDtfsCounter, 3 mSDsluCounter, 11544 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 15398 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:39,344 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 15398 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:09:39,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5028 states. [2022-10-15 21:09:39,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5028 to 5028. [2022-10-15 21:09:39,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5028 states, 4042 states have (on average 1.5717466600692727) internal successors, (6353), 4342 states have internal predecessors, (6353), 627 states have call successors, (627), 74 states have call predecessors, (627), 74 states have return successors, (627), 627 states have call predecessors, (627), 627 states have call successors, (627) [2022-10-15 21:09:39,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5028 states to 5028 states and 7607 transitions. [2022-10-15 21:09:39,656 INFO L78 Accepts]: Start accepts. Automaton has 5028 states and 7607 transitions. Word has length 61 [2022-10-15 21:09:39,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:39,656 INFO L495 AbstractCegarLoop]: Abstraction has 5028 states and 7607 transitions. [2022-10-15 21:09:39,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-10-15 21:09:39,657 INFO L276 IsEmpty]: Start isEmpty. Operand 5028 states and 7607 transitions. [2022-10-15 21:09:39,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-15 21:09:39,662 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:39,662 INFO L195 NwaCegarLoop]: 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] [2022-10-15 21:09:39,662 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 21:09:39,662 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr194ASSERT_VIOLATIONINTEGER_OVERFLOW === [flush_bufferErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, flush_bufferErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, flush_bufferErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 337 more)] === [2022-10-15 21:09:39,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:39,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1605138522, now seen corresponding path program 1 times [2022-10-15 21:09:39,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:39,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833634775] [2022-10-15 21:09:39,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:39,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:40,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:09:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:40,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:09:40,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:40,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 21:09:40,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:40,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-10-15 21:09:40,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:40,252 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-15 21:09:40,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:40,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833634775] [2022-10-15 21:09:40,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833634775] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:40,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:09:40,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:09:40,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527401987] [2022-10-15 21:09:40,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:40,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:09:40,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:40,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:09:40,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:09:40,256 INFO L87 Difference]: Start difference. First operand 5028 states and 7607 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 21:09:40,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:40,571 INFO L93 Difference]: Finished difference Result 10020 states and 15168 transitions. [2022-10-15 21:09:40,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:09:40,572 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 66 [2022-10-15 21:09:40,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:40,594 INFO L225 Difference]: With dead ends: 10020 [2022-10-15 21:09:40,594 INFO L226 Difference]: Without dead ends: 5028 [2022-10-15 21:09:40,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:09:40,612 INFO L413 NwaCegarLoop]: 3839 mSDtfsCounter, 1 mSDsluCounter, 7666 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 11505 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:40,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 11505 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:09:40,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5028 states. [2022-10-15 21:09:40,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5028 to 5028. [2022-10-15 21:09:40,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5028 states, 4042 states have (on average 1.5714992577931717) internal successors, (6352), 4342 states have internal predecessors, (6352), 627 states have call successors, (627), 74 states have call predecessors, (627), 74 states have return successors, (627), 627 states have call predecessors, (627), 627 states have call successors, (627) [2022-10-15 21:09:40,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5028 states to 5028 states and 7606 transitions. [2022-10-15 21:09:40,957 INFO L78 Accepts]: Start accepts. Automaton has 5028 states and 7606 transitions. Word has length 66 [2022-10-15 21:09:40,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:40,958 INFO L495 AbstractCegarLoop]: Abstraction has 5028 states and 7606 transitions. [2022-10-15 21:09:40,958 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-10-15 21:09:40,958 INFO L276 IsEmpty]: Start isEmpty. Operand 5028 states and 7606 transitions. [2022-10-15 21:09:40,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-10-15 21:09:40,960 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:40,961 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-15 21:09:40,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 21:09:40,961 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr194ASSERT_VIOLATIONINTEGER_OVERFLOW === [flush_bufferErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, flush_bufferErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, flush_bufferErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 337 more)] === [2022-10-15 21:09:40,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:40,962 INFO L85 PathProgramCache]: Analyzing trace with hash -420718681, now seen corresponding path program 1 times [2022-10-15 21:09:40,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:40,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1211262726] [2022-10-15 21:09:40,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:40,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:41,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:09:41,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:41,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:09:41,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:41,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 21:09:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:41,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-15 21:09:41,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:41,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-10-15 21:09:41,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:41,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2022-10-15 21:09:41,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:41,519 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-10-15 21:09:41,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:41,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1211262726] [2022-10-15 21:09:41,520 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1211262726] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:41,520 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:09:41,520 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 21:09:41,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227243403] [2022-10-15 21:09:41,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:41,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:09:41,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:41,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:09:41,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:09:41,523 INFO L87 Difference]: Start difference. First operand 5028 states and 7606 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-15 21:09:41,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:09:41,830 INFO L93 Difference]: Finished difference Result 10020 states and 15167 transitions. [2022-10-15 21:09:41,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:09:41,830 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 77 [2022-10-15 21:09:41,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:09:41,857 INFO L225 Difference]: With dead ends: 10020 [2022-10-15 21:09:41,857 INFO L226 Difference]: Without dead ends: 5021 [2022-10-15 21:09:41,875 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:09:41,878 INFO L413 NwaCegarLoop]: 3837 mSDtfsCounter, 3 mSDsluCounter, 11487 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 15324 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:09:41,879 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 15324 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:09:41,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5021 states. [2022-10-15 21:09:42,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5021 to 5021. [2022-10-15 21:09:42,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5021 states, 4039 states have (on average 1.571180985392424) internal successors, (6346), 4337 states have internal predecessors, (6346), 624 states have call successors, (624), 73 states have call predecessors, (624), 73 states have return successors, (624), 624 states have call predecessors, (624), 624 states have call successors, (624) [2022-10-15 21:09:42,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5021 states to 5021 states and 7594 transitions. [2022-10-15 21:09:42,133 INFO L78 Accepts]: Start accepts. Automaton has 5021 states and 7594 transitions. Word has length 77 [2022-10-15 21:09:42,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:09:42,135 INFO L495 AbstractCegarLoop]: Abstraction has 5021 states and 7594 transitions. [2022-10-15 21:09:42,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 3 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-15 21:09:42,136 INFO L276 IsEmpty]: Start isEmpty. Operand 5021 states and 7594 transitions. [2022-10-15 21:09:42,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-10-15 21:09:42,138 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:09:42,139 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 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] [2022-10-15 21:09:42,139 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 21:09:42,139 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr194ASSERT_VIOLATIONINTEGER_OVERFLOW === [flush_bufferErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, flush_bufferErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, flush_bufferErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 337 more)] === [2022-10-15 21:09:42,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:09:42,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1651273109, now seen corresponding path program 1 times [2022-10-15 21:09:42,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:09:42,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409772447] [2022-10-15 21:09:42,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:09:42,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:09:42,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:44,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-15 21:09:44,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:44,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-15 21:09:44,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:44,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-15 21:09:44,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:44,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-10-15 21:09:44,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:44,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 21:09:44,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:44,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-15 21:09:44,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:44,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-10-15 21:09:44,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:09:44,531 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-15 21:09:44,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:09:44,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409772447] [2022-10-15 21:09:44,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409772447] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:09:44,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:09:44,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-15 21:09:44,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399911879] [2022-10-15 21:09:44,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:09:44,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 21:09:44,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:09:44,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 21:09:44,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:09:44,534 INFO L87 Difference]: Start difference. First operand 5021 states and 7594 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 8 states have internal predecessors, (63), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7)