/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-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 12:59:52,752 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 12:59:52,755 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 12:59:52,806 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 12:59:52,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 12:59:52,811 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 12:59:52,815 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 12:59:52,823 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 12:59:52,825 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 12:59:52,831 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 12:59:52,832 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 12:59:52,835 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 12:59:52,835 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 12:59:52,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 12:59:52,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 12:59:52,844 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 12:59:52,846 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 12:59:52,847 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 12:59:52,851 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 12:59:52,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 12:59:52,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 12:59:52,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 12:59:52,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 12:59:52,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 12:59:52,879 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 12:59:52,879 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 12:59:52,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 12:59:52,881 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 12:59:52,883 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 12:59:52,884 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 12:59:52,885 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 12:59:52,886 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 12:59:52,886 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 12:59:52,887 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 12:59:52,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 12:59:52,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 12:59:52,891 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 12:59:52,891 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 12:59:52,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 12:59:52,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 12:59:52,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 12:59:52,894 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 [2022-10-16 12:59:52,948 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 12:59:52,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 12:59:52,949 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 12:59:52,949 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 12:59:52,950 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 12:59:52,951 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 12:59:52,953 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 12:59:52,953 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 12:59:52,954 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 12:59:52,954 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 12:59:52,955 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 12:59:52,955 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 12:59:52,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 12:59:52,956 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 12:59:52,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 12:59:52,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 12:59:52,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 12:59:52,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 12:59:52,956 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 12:59:52,957 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 12:59:52,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 12:59:52,957 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 12:59:52,957 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 12:59:52,957 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 12:59:52,958 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 12:59:52,958 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 12:59:52,958 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:59:52,958 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 12:59:52,958 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 12:59:52,959 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 12:59:52,959 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 12:59:52,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 12:59:52,959 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 12:59:52,960 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 12:59:53,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 12:59:53,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 12:59:53,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 12:59:53,429 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 12:59:53,430 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 12:59:53,431 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2022-10-16 12:59:53,520 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/156755eea/c7a099c4a748469f951e1b53a62f054e/FLAG3be4688bf [2022-10-16 12:59:54,621 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 12:59:54,622 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2022-10-16 12:59:54,674 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/156755eea/c7a099c4a748469f951e1b53a62f054e/FLAG3be4688bf [2022-10-16 12:59:55,064 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/156755eea/c7a099c4a748469f951e1b53a62f054e [2022-10-16 12:59:55,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 12:59:55,074 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 12:59:55,082 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 12:59:55,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 12:59:55,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 12:59:55,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:59:55" (1/1) ... [2022-10-16 12:59:55,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d431aed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:59:55, skipping insertion in model container [2022-10-16 12:59:55,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:59:55" (1/1) ... [2022-10-16 12:59:55,097 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 12:59:55,241 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 12:59:56,396 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-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i[117505,117518] [2022-10-16 12:59:57,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:59:57,462 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 12:59:57,649 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-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i[117505,117518] [2022-10-16 12:59:57,986 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:59:58,182 INFO L208 MainTranslator]: Completed translation [2022-10-16 12:59:58,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:59:58 WrapperNode [2022-10-16 12:59:58,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 12:59:58,184 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 12:59:58,184 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 12:59:58,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 12:59:58,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:59:58" (1/1) ... [2022-10-16 12:59:58,331 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:59:58" (1/1) ... [2022-10-16 13:00:00,166 INFO L138 Inliner]: procedures = 229, calls = 2530, calls flagged for inlining = 102, calls inlined = 99, statements flattened = 5053 [2022-10-16 13:00:00,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 13:00:00,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 13:00:00,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 13:00:00,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 13:00:00,193 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:59:58" (1/1) ... [2022-10-16 13:00:00,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:59:58" (1/1) ... [2022-10-16 13:00:00,914 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:59:58" (1/1) ... [2022-10-16 13:00:00,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:59:58" (1/1) ... [2022-10-16 13:00:02,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:59:58" (1/1) ... [2022-10-16 13:00:02,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:59:58" (1/1) ... [2022-10-16 13:00:02,387 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:59:58" (1/1) ... [2022-10-16 13:00:02,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:59:58" (1/1) ... [2022-10-16 13:00:02,881 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 13:00:02,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 13:00:02,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 13:00:02,883 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 13:00:02,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:59:58" (1/1) ... [2022-10-16 13:00:02,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:00:02,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:00:02,925 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) [2022-10-16 13:00:02,947 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 [2022-10-16 13:00:02,991 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-10-16 13:00:02,992 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-10-16 13:00:02,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2022-10-16 13:00:02,992 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2022-10-16 13:00:02,992 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-10-16 13:00:02,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-16 13:00:02,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-16 13:00:02,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-16 13:00:02,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-16 13:00:02,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-10-16 13:00:02,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-10-16 13:00:02,993 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_rel [2022-10-16 13:00:02,993 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_rel [2022-10-16 13:00:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_26 [2022-10-16 13:00:02,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_26 [2022-10-16 13:00:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-10-16 13:00:02,994 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-10-16 13:00:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2022-10-16 13:00:02,994 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2022-10-16 13:00:02,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 13:00:02,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 13:00:02,995 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-10-16 13:00:02,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-10-16 13:00:02,995 INFO L130 BoogieDeclarations]: Found specification of procedure send_packet [2022-10-16 13:00:02,995 INFO L138 BoogieDeclarations]: Found implementation of procedure send_packet [2022-10-16 13:00:02,995 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2022-10-16 13:00:02,996 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2022-10-16 13:00:02,996 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-16 13:00:02,996 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-16 13:00:02,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-16 13:00:02,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-16 13:00:02,996 INFO L130 BoogieDeclarations]: Found specification of procedure imon_disconnect [2022-10-16 13:00:02,996 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_disconnect [2022-10-16 13:00:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2022-10-16 13:00:02,997 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2022-10-16 13:00:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure rc_g_keycode_from_table [2022-10-16 13:00:02,997 INFO L138 BoogieDeclarations]: Found implementation of procedure rc_g_keycode_from_table [2022-10-16 13:00:02,997 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 13:00:02,997 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 13:00:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-10-16 13:00:02,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-10-16 13:00:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-16 13:00:02,998 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-16 13:00:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 13:00:02,998 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2022-10-16 13:00:02,999 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2022-10-16 13:00:02,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_10 [2022-10-16 13:00:02,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_10 [2022-10-16 13:00:02,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 13:00:02,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_11 [2022-10-16 13:00:03,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_11 [2022-10-16 13:00:03,000 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2022-10-16 13:00:03,000 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2022-10-16 13:00:03,000 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-16 13:00:03,000 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-16 13:00:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2022-10-16 13:00:03,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2022-10-16 13:00:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 13:00:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 13:00:03,001 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2022-10-16 13:00:03,001 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2022-10-16 13:00:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-10-16 13:00:03,002 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-10-16 13:00:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-16 13:00:03,002 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-16 13:00:03,002 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-10-16 13:00:03,002 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-10-16 13:00:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-10-16 13:00:03,003 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-10-16 13:00:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2022-10-16 13:00:03,003 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2022-10-16 13:00:03,003 INFO L130 BoogieDeclarations]: Found specification of procedure usb_rx_callback_intf1 [2022-10-16 13:00:03,004 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_rx_callback_intf1 [2022-10-16 13:00:03,004 INFO L130 BoogieDeclarations]: Found specification of procedure usb_rx_callback_intf0 [2022-10-16 13:00:03,004 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_rx_callback_intf0 [2022-10-16 13:00:03,004 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2022-10-16 13:00:03,004 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2022-10-16 13:00:03,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-16 13:00:03,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-16 13:00:03,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-16 13:00:03,005 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-16 13:00:03,005 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-16 13:00:03,005 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2022-10-16 13:00:03,005 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2022-10-16 13:00:03,006 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-10-16 13:00:03,006 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-10-16 13:00:03,006 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-16 13:00:03,006 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2022-10-16 13:00:03,006 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2022-10-16 13:00:03,006 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2022-10-16 13:00:03,007 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2022-10-16 13:00:03,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 13:00:03,007 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-10-16 13:00:03,007 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-10-16 13:00:03,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_7 [2022-10-16 13:00:03,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_7 [2022-10-16 13:00:03,007 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-16 13:00:03,008 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-16 13:00:03,008 INFO L130 BoogieDeclarations]: Found specification of procedure lcd_write [2022-10-16 13:00:03,008 INFO L138 BoogieDeclarations]: Found implementation of procedure lcd_write [2022-10-16 13:00:03,008 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-10-16 13:00:03,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-10-16 13:00:03,009 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-10-16 13:00:03,009 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-10-16 13:00:03,009 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-16 13:00:03,009 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-16 13:00:03,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 13:00:03,009 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2022-10-16 13:00:03,010 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2022-10-16 13:00:03,010 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2022-10-16 13:00:03,010 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2022-10-16 13:00:03,010 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2022-10-16 13:00:03,010 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2022-10-16 13:00:03,010 INFO L130 BoogieDeclarations]: Found specification of procedure imon_incoming_packet [2022-10-16 13:00:03,010 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_incoming_packet [2022-10-16 13:00:03,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-16 13:00:03,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-16 13:00:03,011 INFO L130 BoogieDeclarations]: Found specification of procedure imon_remote_key_lookup [2022-10-16 13:00:03,011 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_remote_key_lookup [2022-10-16 13:00:03,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 13:00:03,011 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2022-10-16 13:00:03,012 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2022-10-16 13:00:03,012 INFO L130 BoogieDeclarations]: Found specification of procedure tv2int [2022-10-16 13:00:03,012 INFO L138 BoogieDeclarations]: Found implementation of procedure tv2int [2022-10-16 13:00:03,012 INFO L130 BoogieDeclarations]: Found specification of procedure stabilize [2022-10-16 13:00:03,012 INFO L138 BoogieDeclarations]: Found implementation of procedure stabilize [2022-10-16 13:00:03,012 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2022-10-16 13:00:03,013 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2022-10-16 13:00:03,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_6 [2022-10-16 13:00:03,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_6 [2022-10-16 13:00:03,013 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-10-16 13:00:03,013 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-10-16 13:00:03,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 13:00:03,014 INFO L130 BoogieDeclarations]: Found specification of procedure vfd_write [2022-10-16 13:00:03,014 INFO L138 BoogieDeclarations]: Found implementation of procedure vfd_write [2022-10-16 13:00:03,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-10-16 13:00:03,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-10-16 13:00:03,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 13:00:03,014 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2022-10-16 13:00:03,015 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2022-10-16 13:00:03,015 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-16 13:00:03,015 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2022-10-16 13:00:03,015 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2022-10-16 13:00:03,015 INFO L130 BoogieDeclarations]: Found specification of procedure display_close [2022-10-16 13:00:03,015 INFO L138 BoogieDeclarations]: Found implementation of procedure display_close [2022-10-16 13:00:03,015 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-10-16 13:00:03,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-10-16 13:00:03,016 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2022-10-16 13:00:03,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2022-10-16 13:00:03,016 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2022-10-16 13:00:03,016 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2022-10-16 13:00:03,016 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2022-10-16 13:00:03,016 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2022-10-16 13:00:03,017 INFO L130 BoogieDeclarations]: Found specification of procedure imon_find_endpoints [2022-10-16 13:00:03,017 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_find_endpoints [2022-10-16 13:00:03,017 INFO L130 BoogieDeclarations]: Found specification of procedure display_open [2022-10-16 13:00:03,017 INFO L138 BoogieDeclarations]: Found implementation of procedure display_open [2022-10-16 13:00:03,017 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-10-16 13:00:03,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-10-16 13:00:03,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 13:00:03,018 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2022-10-16 13:00:03,018 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2022-10-16 13:00:03,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 13:00:03,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 13:00:03,859 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 13:00:03,863 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 13:00:11,505 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-16 13:00:37,501 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-10-16 13:00:40,951 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 13:00:40,984 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 13:00:40,984 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 13:00:40,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:00:40 BoogieIcfgContainer [2022-10-16 13:00:40,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 13:00:40,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 13:00:40,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 13:00:40,997 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 13:00:40,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:59:55" (1/3) ... [2022-10-16 13:00:40,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c0cfe8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:00:40, skipping insertion in model container [2022-10-16 13:00:40,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:59:58" (2/3) ... [2022-10-16 13:00:40,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c0cfe8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:00:40, skipping insertion in model container [2022-10-16 13:00:40,999 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:00:40" (3/3) ... [2022-10-16 13:00:41,001 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2022-10-16 13:00:41,030 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 13:00:41,030 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 108 error locations. [2022-10-16 13:00:41,170 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 13:00:41,180 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;@36b9f963, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 13:00:41,181 INFO L358 AbstractCegarLoop]: Starting to check reachability of 108 error locations. [2022-10-16 13:00:41,196 INFO L276 IsEmpty]: Start isEmpty. Operand has 1768 states, 1269 states have (on average 1.4680851063829787) internal successors, (1863), 1407 states have internal predecessors, (1863), 319 states have call successors, (319), 73 states have call predecessors, (319), 71 states have return successors, (310), 305 states have call predecessors, (310), 310 states have call successors, (310) [2022-10-16 13:00:41,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-16 13:00:41,247 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:00:41,251 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:00:41,252 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [vfd_writeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vfd_writeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, vfd_writeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 105 more)] === [2022-10-16 13:00:41,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:00:41,261 INFO L85 PathProgramCache]: Analyzing trace with hash 847759037, now seen corresponding path program 1 times [2022-10-16 13:00:41,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:00:41,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559141483] [2022-10-16 13:00:41,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:00:41,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:00:41,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:00:42,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:00:42,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:00:42,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:00:42,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:00:42,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:00:42,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:00:42,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:00:42,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:00:42,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:00:42,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:00:42,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:00:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:00:42,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:00:42,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:00:42,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:00:42,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:00:42,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:00:42,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:00:42,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-16 13:00:42,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:00:42,575 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-10-16 13:00:42,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:00:42,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559141483] [2022-10-16 13:00:42,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559141483] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:00:42,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:00:42,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:00:42,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814657232] [2022-10-16 13:00:42,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:00:42,586 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:00:42,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:00:42,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:00:42,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:00:42,628 INFO L87 Difference]: Start difference. First operand has 1768 states, 1269 states have (on average 1.4680851063829787) internal successors, (1863), 1407 states have internal predecessors, (1863), 319 states have call successors, (319), 73 states have call predecessors, (319), 71 states have return successors, (310), 305 states have call predecessors, (310), 310 states have call successors, (310) Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-16 13:00:45,009 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 [] [2022-10-16 13:00:46,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:00:48,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:00:50,630 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:00:53,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:00:55,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:00:57,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:01:01,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:01:03,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:01:05,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:01:07,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:01:09,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:01:12,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.62s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:01:15,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:01:19,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:01:21,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:01:25,240 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:01:27,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:01:27,104 INFO L93 Difference]: Finished difference Result 5236 states and 7652 transitions. [2022-10-16 13:01:27,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:01:27,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 72 [2022-10-16 13:01:27,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:01:27,204 INFO L225 Difference]: With dead ends: 5236 [2022-10-16 13:01:27,204 INFO L226 Difference]: Without dead ends: 3410 [2022-10-16 13:01:27,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:01:27,236 INFO L413 NwaCegarLoop]: 2640 mSDtfsCounter, 2629 mSDsluCounter, 4371 mSDsCounter, 0 mSdLazyCounter, 2403 mSolverCounterSat, 737 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2870 SdHoareTripleChecker+Valid, 7011 SdHoareTripleChecker+Invalid, 3149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 737 IncrementalHoareTripleChecker+Valid, 2403 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.8s IncrementalHoareTripleChecker+Time [2022-10-16 13:01:27,237 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2870 Valid, 7011 Invalid, 3149 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [737 Valid, 2403 Invalid, 9 Unknown, 0 Unchecked, 43.8s Time] [2022-10-16 13:01:27,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3410 states. [2022-10-16 13:01:27,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3410 to 3216. [2022-10-16 13:01:27,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3216 states, 2413 states have (on average 1.4090343970161625) internal successors, (3400), 2529 states have internal predecessors, (3400), 580 states have call successors, (580), 139 states have call predecessors, (580), 139 states have return successors, (580), 569 states have call predecessors, (580), 580 states have call successors, (580) [2022-10-16 13:01:27,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3216 states to 3216 states and 4560 transitions. [2022-10-16 13:01:27,561 INFO L78 Accepts]: Start accepts. Automaton has 3216 states and 4560 transitions. Word has length 72 [2022-10-16 13:01:27,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:01:27,563 INFO L495 AbstractCegarLoop]: Abstraction has 3216 states and 4560 transitions. [2022-10-16 13:01:27,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-16 13:01:27,563 INFO L276 IsEmpty]: Start isEmpty. Operand 3216 states and 4560 transitions. [2022-10-16 13:01:27,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-16 13:01:27,568 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:01:27,569 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:01:27,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 13:01:27,569 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [vfd_writeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vfd_writeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, vfd_writeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 105 more)] === [2022-10-16 13:01:27,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:01:27,570 INFO L85 PathProgramCache]: Analyzing trace with hash 571268561, now seen corresponding path program 1 times [2022-10-16 13:01:27,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:01:27,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940433756] [2022-10-16 13:01:27,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:01:27,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:01:27,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:01:27,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:01:27,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:01:27,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:01:27,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:01:27,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:01:27,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:01:27,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:01:27,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:01:27,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:01:27,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:01:27,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:01:27,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:01:28,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:01:28,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:01:28,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:01:28,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:01:28,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:01:28,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:01:28,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-10-16 13:01:28,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:01:28,045 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-10-16 13:01:28,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:01:28,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940433756] [2022-10-16 13:01:28,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940433756] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:01:28,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:01:28,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:01:28,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91696943] [2022-10-16 13:01:28,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:01:28,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:01:28,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:01:28,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:01:28,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:01:28,050 INFO L87 Difference]: Start difference. First operand 3216 states and 4560 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-16 13:01:32,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:01:36,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:01:38,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:01:40,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:01:45,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:01:48,238 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:01:50,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:01:51,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:01:53,720 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:01:55,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:01:57,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:01:57,606 INFO L93 Difference]: Finished difference Result 8872 states and 12631 transitions. [2022-10-16 13:01:57,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:01:57,606 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 78 [2022-10-16 13:01:57,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:01:57,653 INFO L225 Difference]: With dead ends: 8872 [2022-10-16 13:01:57,653 INFO L226 Difference]: Without dead ends: 5679 [2022-10-16 13:01:57,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:01:57,676 INFO L413 NwaCegarLoop]: 2669 mSDtfsCounter, 2033 mSDsluCounter, 3169 mSDsCounter, 0 mSdLazyCounter, 1405 mSolverCounterSat, 578 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2204 SdHoareTripleChecker+Valid, 5838 SdHoareTripleChecker+Invalid, 1990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 578 IncrementalHoareTripleChecker+Valid, 1405 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:01:57,677 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2204 Valid, 5838 Invalid, 1990 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [578 Valid, 1405 Invalid, 7 Unknown, 0 Unchecked, 29.1s Time] [2022-10-16 13:01:57,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5679 states. [2022-10-16 13:01:57,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5679 to 5401. [2022-10-16 13:01:57,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5401 states, 4122 states have (on average 1.4187287724405628) internal successors, (5848), 4264 states have internal predecessors, (5848), 948 states have call successors, (948), 247 states have call predecessors, (948), 247 states have return successors, (948), 927 states have call predecessors, (948), 948 states have call successors, (948) [2022-10-16 13:01:57,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5401 states to 5401 states and 7744 transitions. [2022-10-16 13:01:57,968 INFO L78 Accepts]: Start accepts. Automaton has 5401 states and 7744 transitions. Word has length 78 [2022-10-16 13:01:57,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:01:57,969 INFO L495 AbstractCegarLoop]: Abstraction has 5401 states and 7744 transitions. [2022-10-16 13:01:57,969 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-16 13:01:57,969 INFO L276 IsEmpty]: Start isEmpty. Operand 5401 states and 7744 transitions. [2022-10-16 13:01:57,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-16 13:01:57,972 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:01:57,972 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:01:57,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 13:01:57,973 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [vfd_writeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vfd_writeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, vfd_writeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 105 more)] === [2022-10-16 13:01:57,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:01:57,973 INFO L85 PathProgramCache]: Analyzing trace with hash 2111829499, now seen corresponding path program 1 times [2022-10-16 13:01:57,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:01:57,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060446703] [2022-10-16 13:01:57,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:01:57,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:01:58,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:01:58,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:01:58,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:01:58,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:01:58,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:01:58,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:01:58,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:01:58,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:01:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:01:58,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:01:58,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:01:58,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:01:58,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:01:58,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:01:58,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:01:58,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:01:58,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:01:59,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:01:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:01:59,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-10-16 13:01:59,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:01:59,038 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-10-16 13:01:59,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:01:59,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060446703] [2022-10-16 13:01:59,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060446703] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:01:59,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:01:59,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:01:59,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28273958] [2022-10-16 13:01:59,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:01:59,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:01:59,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:01:59,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:01:59,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:01:59,041 INFO L87 Difference]: Start difference. First operand 5401 states and 7744 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-16 13:02:02,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:02:05,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:02:08,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:02:11,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:02:12,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:02:14,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:02:15,579 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:02:17,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:02:19,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:02:21,812 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:02:23,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:02:25,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:02:27,452 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:02:29,556 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:02:31,176 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:02:34,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:02:36,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:02:36,102 INFO L93 Difference]: Finished difference Result 16148 states and 23223 transitions. [2022-10-16 13:02:36,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:02:36,102 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 78 [2022-10-16 13:02:36,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:02:36,187 INFO L225 Difference]: With dead ends: 16148 [2022-10-16 13:02:36,188 INFO L226 Difference]: Without dead ends: 10777 [2022-10-16 13:02:36,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:02:36,231 INFO L413 NwaCegarLoop]: 2794 mSDtfsCounter, 3129 mSDsluCounter, 3193 mSDsCounter, 0 mSdLazyCounter, 1513 mSolverCounterSat, 1269 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3370 SdHoareTripleChecker+Valid, 5987 SdHoareTripleChecker+Invalid, 2792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1269 IncrementalHoareTripleChecker+Valid, 1513 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.5s IncrementalHoareTripleChecker+Time [2022-10-16 13:02:36,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3370 Valid, 5987 Invalid, 2792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1269 Valid, 1513 Invalid, 10 Unknown, 0 Unchecked, 36.5s Time] [2022-10-16 13:02:36,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10777 states. [2022-10-16 13:02:36,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10777 to 10287. [2022-10-16 13:02:36,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10287 states, 7940 states have (on average 1.4183879093198992) internal successors, (11262), 8138 states have internal predecessors, (11262), 1784 states have call successors, (1784), 479 states have call predecessors, (1784), 479 states have return successors, (1784), 1743 states have call predecessors, (1784), 1784 states have call successors, (1784) [2022-10-16 13:02:36,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10287 states to 10287 states and 14830 transitions. [2022-10-16 13:02:36,842 INFO L78 Accepts]: Start accepts. Automaton has 10287 states and 14830 transitions. Word has length 78 [2022-10-16 13:02:36,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:02:36,843 INFO L495 AbstractCegarLoop]: Abstraction has 10287 states and 14830 transitions. [2022-10-16 13:02:36,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-16 13:02:36,844 INFO L276 IsEmpty]: Start isEmpty. Operand 10287 states and 14830 transitions. [2022-10-16 13:02:36,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-10-16 13:02:36,846 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:02:36,847 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:02:36,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 13:02:36,847 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [vfd_writeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vfd_writeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, vfd_writeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 105 more)] === [2022-10-16 13:02:36,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:02:36,848 INFO L85 PathProgramCache]: Analyzing trace with hash 648468660, now seen corresponding path program 1 times [2022-10-16 13:02:36,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:02:36,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715712215] [2022-10-16 13:02:36,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:02:36,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:02:36,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:37,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:02:37,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:37,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:02:37,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:37,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:02:37,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:37,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:02:37,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:37,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:02:37,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:37,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:02:37,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:37,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:02:37,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:37,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:02:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:37,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:02:37,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:37,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-16 13:02:37,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:37,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 13:02:37,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:37,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-10-16 13:02:37,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:37,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-10-16 13:02:37,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:02:37,393 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-10-16 13:02:37,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:02:37,394 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715712215] [2022-10-16 13:02:37,394 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715712215] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:02:37,394 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:02:37,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 13:02:37,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788811997] [2022-10-16 13:02:37,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:02:37,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:02:37,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:02:37,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:02:37,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:02:37,398 INFO L87 Difference]: Start difference. First operand 10287 states and 14830 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-16 13:02:41,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:02:43,461 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:02:45,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:02:48,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:02:50,985 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:02:54,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:02:56,380 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:02:58,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:02:59,684 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:03:01,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:03:04,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.79s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:03:06,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:03:09,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:03:12,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:03:16,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:03:18,394 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:03:21,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:03:23,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:03:25,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:03:27,711 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:03:30,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:03:32,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:03:35,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:03:40,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:03:42,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:03:42,760 INFO L93 Difference]: Finished difference Result 31900 states and 46199 transitions. [2022-10-16 13:03:42,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 13:03:42,761 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 102 [2022-10-16 13:03:42,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:03:42,894 INFO L225 Difference]: With dead ends: 31900 [2022-10-16 13:03:42,895 INFO L226 Difference]: Without dead ends: 21643 [2022-10-16 13:03:42,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-10-16 13:03:42,946 INFO L413 NwaCegarLoop]: 2812 mSDtfsCounter, 3899 mSDsluCounter, 4780 mSDsCounter, 0 mSdLazyCounter, 2367 mSolverCounterSat, 2024 mSolverCounterUnsat, 20 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 62.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4172 SdHoareTripleChecker+Valid, 7592 SdHoareTripleChecker+Invalid, 4411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2024 IncrementalHoareTripleChecker+Valid, 2367 IncrementalHoareTripleChecker+Invalid, 20 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 64.4s IncrementalHoareTripleChecker+Time [2022-10-16 13:03:42,947 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4172 Valid, 7592 Invalid, 4411 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2024 Valid, 2367 Invalid, 20 Unknown, 0 Unchecked, 64.4s Time] [2022-10-16 13:03:42,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21643 states. [2022-10-16 13:03:43,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21643 to 20093. [2022-10-16 13:03:44,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20093 states, 15596 states have (on average 1.4197230058989485) internal successors, (22142), 15914 states have internal predecessors, (22142), 3460 states have call successors, (3460), 949 states have call predecessors, (3460), 953 states have return successors, (3476), 3377 states have call predecessors, (3476), 3460 states have call successors, (3476) [2022-10-16 13:03:44,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20093 states to 20093 states and 29078 transitions. [2022-10-16 13:03:44,120 INFO L78 Accepts]: Start accepts. Automaton has 20093 states and 29078 transitions. Word has length 102 [2022-10-16 13:03:44,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:03:44,120 INFO L495 AbstractCegarLoop]: Abstraction has 20093 states and 29078 transitions. [2022-10-16 13:03:44,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (15), 5 states have call predecessors, (15), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-16 13:03:44,122 INFO L276 IsEmpty]: Start isEmpty. Operand 20093 states and 29078 transitions. [2022-10-16 13:03:44,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-10-16 13:03:44,129 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:03:44,130 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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] [2022-10-16 13:03:44,130 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 13:03:44,130 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __create_pipeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [vfd_writeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, vfd_writeErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, vfd_writeErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 105 more)] === [2022-10-16 13:03:44,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:03:44,131 INFO L85 PathProgramCache]: Analyzing trace with hash 415106753, now seen corresponding path program 1 times [2022-10-16 13:03:44,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:03:44,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146579953] [2022-10-16 13:03:44,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:03:44,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:03:44,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:44,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:03:44,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:44,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 13:03:44,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:44,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 13:03:44,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:44,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 13:03:44,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:44,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 13:03:44,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:44,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:03:44,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:44,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 13:03:44,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:44,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-10-16 13:03:44,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:44,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-16 13:03:44,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:44,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-10-16 13:03:44,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:44,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2022-10-16 13:03:44,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:03:44,597 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-10-16 13:03:44,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:03:44,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146579953] [2022-10-16 13:03:44,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146579953] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:03:44,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:03:44,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:03:44,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219228092] [2022-10-16 13:03:44,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:03:44,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:03:44,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:03:44,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:03:44,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 13:03:44,601 INFO L87 Difference]: Start difference. First operand 20093 states and 29078 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 13:03:47,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:03:50,520 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:03:53,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 13:03:55,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []