/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 12:50:20,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 12:50:20,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 12:50:20,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 12:50:20,990 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 12:50:20,995 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 12:50:20,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 12:50:21,008 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 12:50:21,010 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 12:50:21,018 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 12:50:21,019 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 12:50:21,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 12:50:21,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 12:50:21,022 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 12:50:21,023 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 12:50:21,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 12:50:21,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 12:50:21,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 12:50:21,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 12:50:21,030 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 12:50:21,032 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 12:50:21,034 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 12:50:21,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 12:50:21,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 12:50:21,041 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 12:50:21,041 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 12:50:21,041 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 12:50:21,042 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 12:50:21,043 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 12:50:21,044 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 12:50:21,044 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 12:50:21,056 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 12:50:21,057 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 12:50:21,058 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 12:50:21,059 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 12:50:21,060 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 12:50:21,060 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 12:50:21,061 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 12:50:21,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 12:50:21,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 12:50:21,063 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 12:50:21,064 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 12:50:21,092 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 12:50:21,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 12:50:21,093 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 12:50:21,093 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 12:50:21,094 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 12:50:21,095 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 12:50:21,095 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 12:50:21,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 12:50:21,096 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 12:50:21,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 12:50:21,096 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 12:50:21,096 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 12:50:21,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 12:50:21,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 12:50:21,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 12:50:21,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 12:50:21,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 12:50:21,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 12:50:21,098 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 12:50:21,098 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 12:50:21,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 12:50:21,098 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 12:50:21,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 12:50:21,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 12:50:21,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 12:50:21,099 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 12:50:21,099 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:50:21,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 12:50:21,100 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 12:50:21,100 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 12:50:21,100 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 12:50:21,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 12:50:21,101 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 12:50:21,101 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 12:50:21,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 12:50:21,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 12:50:21,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 12:50:21,495 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 12:50:21,495 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 12:50:21,497 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i [2022-10-16 12:50:21,579 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dbdd0ea4/0b46467e7c4344f4a93c0ff98d85aa2f/FLAGcdd1b2d80 [2022-10-16 12:50:22,815 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 12:50:22,816 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i [2022-10-16 12:50:22,903 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dbdd0ea4/0b46467e7c4344f4a93c0ff98d85aa2f/FLAGcdd1b2d80 [2022-10-16 12:50:23,055 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dbdd0ea4/0b46467e7c4344f4a93c0ff98d85aa2f [2022-10-16 12:50:23,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 12:50:23,066 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 12:50:23,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 12:50:23,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 12:50:23,074 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 12:50:23,074 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:50:23" (1/1) ... [2022-10-16 12:50:23,076 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f7af578 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:50:23, skipping insertion in model container [2022-10-16 12:50:23,077 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:50:23" (1/1) ... [2022-10-16 12:50:23,086 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 12:50:23,269 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 12:50:26,416 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i[386276,386289] [2022-10-16 12:50:26,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:50:26,608 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 12:50:27,517 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i[386276,386289] [2022-10-16 12:50:27,542 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:50:27,796 INFO L208 MainTranslator]: Completed translation [2022-10-16 12:50:27,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:50:27 WrapperNode [2022-10-16 12:50:27,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 12:50:27,800 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 12:50:27,800 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 12:50:27,800 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 12:50:27,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:50:27" (1/1) ... [2022-10-16 12:50:27,985 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:50:27" (1/1) ... [2022-10-16 12:50:28,234 INFO L138 Inliner]: procedures = 356, calls = 3808, calls flagged for inlining = 167, calls inlined = 133, statements flattened = 7610 [2022-10-16 12:50:28,235 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 12:50:28,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 12:50:28,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 12:50:28,236 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 12:50:28,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:50:27" (1/1) ... [2022-10-16 12:50:28,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:50:27" (1/1) ... [2022-10-16 12:50:28,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:50:27" (1/1) ... [2022-10-16 12:50:28,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:50:27" (1/1) ... [2022-10-16 12:50:28,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:50:27" (1/1) ... [2022-10-16 12:50:28,709 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:50:27" (1/1) ... [2022-10-16 12:50:28,753 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:50:27" (1/1) ... [2022-10-16 12:50:28,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:50:27" (1/1) ... [2022-10-16 12:50:28,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 12:50:28,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 12:50:28,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 12:50:28,842 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 12:50:28,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:50:27" (1/1) ... [2022-10-16 12:50:28,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:50:28,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:50:28,885 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 12:50:28,906 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 12:50:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2022-10-16 12:50:28,946 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2022-10-16 12:50:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure remove_wait_queue [2022-10-16 12:50:28,947 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_wait_queue [2022-10-16 12:50:28,947 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-10-16 12:50:28,947 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-16 12:50:28,947 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-16 12:50:28,947 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2022-10-16 12:50:28,947 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2022-10-16 12:50:28,947 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-10-16 12:50:28,948 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-10-16 12:50:28,948 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-10-16 12:50:28,948 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-10-16 12:50:28,948 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-10-16 12:50:28,948 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-10-16 12:50:28,948 INFO L130 BoogieDeclarations]: Found specification of procedure set_signals [2022-10-16 12:50:28,948 INFO L138 BoogieDeclarations]: Found implementation of procedure set_signals [2022-10-16 12:50:28,948 INFO L130 BoogieDeclarations]: Found specification of procedure irq_test [2022-10-16 12:50:28,949 INFO L138 BoogieDeclarations]: Found implementation of procedure irq_test [2022-10-16 12:50:28,949 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_dma_bufs [2022-10-16 12:50:28,949 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_dma_bufs [2022-10-16 12:50:28,949 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_ioctl [2022-10-16 12:50:28,949 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_ioctl [2022-10-16 12:50:28,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 12:50:28,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 12:50:28,950 INFO L130 BoogieDeclarations]: Found specification of procedure flush_chars [2022-10-16 12:50:28,950 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_chars [2022-10-16 12:50:28,950 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap_nocache [2022-10-16 12:50:28,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap_nocache [2022-10-16 12:50:28,950 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-10-16 12:50:28,950 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-10-16 12:50:28,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-16 12:50:28,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-16 12:50:28,951 INFO L130 BoogieDeclarations]: Found specification of procedure tx_stop [2022-10-16 12:50:28,951 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_stop [2022-10-16 12:50:28,951 INFO L130 BoogieDeclarations]: Found specification of procedure sca_init [2022-10-16 12:50:28,951 INFO L138 BoogieDeclarations]: Found implementation of procedure sca_init [2022-10-16 12:50:28,951 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-10-16 12:50:28,951 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-10-16 12:50:28,951 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-10-16 12:50:28,952 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-10-16 12:50:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-16 12:50:28,952 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-16 12:50:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure chars_in_buffer [2022-10-16 12:50:28,952 INFO L138 BoogieDeclarations]: Found implementation of procedure chars_in_buffer [2022-10-16 12:50:28,952 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-10-16 12:50:28,952 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-10-16 12:50:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-10-16 12:50:28,953 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-10-16 12:50:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure change_params [2022-10-16 12:50:28,953 INFO L138 BoogieDeclarations]: Found implementation of procedure change_params [2022-10-16 12:50:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2022-10-16 12:50:28,953 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2022-10-16 12:50:28,953 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-10-16 12:50:28,954 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-10-16 12:50:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_change_mtu [2022-10-16 12:50:28,954 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_change_mtu [2022-10-16 12:50:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-10-16 12:50:28,954 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-10-16 12:50:28,954 INFO L130 BoogieDeclarations]: Found specification of procedure set_break [2022-10-16 12:50:28,955 INFO L138 BoogieDeclarations]: Found implementation of procedure set_break [2022-10-16 12:50:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure tx_start [2022-10-16 12:50:28,955 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_start [2022-10-16 12:50:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 12:50:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-10-16 12:50:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure startup [2022-10-16 12:50:28,955 INFO L138 BoogieDeclarations]: Found implementation of procedure startup [2022-10-16 12:50:28,955 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_frame_bufs [2022-10-16 12:50:28,956 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_frame_bufs [2022-10-16 12:50:28,956 INFO L130 BoogieDeclarations]: Found specification of procedure rx_free_frame_buffers [2022-10-16 12:50:28,956 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_free_frame_buffers [2022-10-16 12:50:28,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 12:50:28,956 INFO L130 BoogieDeclarations]: Found specification of procedure wait_until_sent [2022-10-16 12:50:28,956 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_until_sent [2022-10-16 12:50:28,957 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2022-10-16 12:50:28,957 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2022-10-16 12:50:28,957 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-10-16 12:50:28,957 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-10-16 12:50:28,957 INFO L130 BoogieDeclarations]: Found specification of procedure synclinkmp_cleanup [2022-10-16 12:50:28,957 INFO L138 BoogieDeclarations]: Found implementation of procedure synclinkmp_cleanup [2022-10-16 12:50:28,957 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mutex_of_tty_port [2022-10-16 12:50:28,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mutex_of_tty_port [2022-10-16 12:50:28,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 12:50:28,958 INFO L130 BoogieDeclarations]: Found specification of procedure dtr_rts [2022-10-16 12:50:28,958 INFO L138 BoogieDeclarations]: Found implementation of procedure dtr_rts [2022-10-16 12:50:28,958 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-10-16 12:50:28,958 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-10-16 12:50:28,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 12:50:28,958 INFO L130 BoogieDeclarations]: Found specification of procedure set_rate [2022-10-16 12:50:28,959 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rate [2022-10-16 12:50:28,959 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-16 12:50:28,959 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-16 12:50:28,959 INFO L130 BoogieDeclarations]: Found specification of procedure ioctl [2022-10-16 12:50:28,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ioctl [2022-10-16 12:50:28,959 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2022-10-16 12:50:28,959 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2022-10-16 12:50:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-16 12:50:28,960 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-16 12:50:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmset [2022-10-16 12:50:28,960 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmset [2022-10-16 12:50:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-10-16 12:50:28,960 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-10-16 12:50:28,960 INFO L130 BoogieDeclarations]: Found specification of procedure add_wait_queue [2022-10-16 12:50:28,961 INFO L138 BoogieDeclarations]: Found implementation of procedure add_wait_queue [2022-10-16 12:50:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-10-16 12:50:28,961 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-10-16 12:50:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure rx_stop [2022-10-16 12:50:28,961 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_stop [2022-10-16 12:50:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure loopback_test [2022-10-16 12:50:28,961 INFO L138 BoogieDeclarations]: Found implementation of procedure loopback_test [2022-10-16 12:50:28,961 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2022-10-16 12:50:28,962 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2022-10-16 12:50:28,962 INFO L130 BoogieDeclarations]: Found specification of procedure hdlcdev_tx_timeout [2022-10-16 12:50:28,962 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlcdev_tx_timeout [2022-10-16 12:50:28,962 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-16 12:50:28,962 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-16 12:50:28,962 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-16 12:50:28,962 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-10-16 12:50:28,962 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-10-16 12:50:28,963 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-16 12:50:28,963 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2022-10-16 12:50:28,963 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2022-10-16 12:50:28,963 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hung_up_p [2022-10-16 12:50:28,963 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hung_up_p [2022-10-16 12:50:28,963 INFO L130 BoogieDeclarations]: Found specification of procedure release_resources [2022-10-16 12:50:28,963 INFO L138 BoogieDeclarations]: Found implementation of procedure release_resources [2022-10-16 12:50:28,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 12:50:28,964 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-10-16 12:50:28,964 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-10-16 12:50:28,964 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-10-16 12:50:28,964 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-10-16 12:50:28,964 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2022-10-16 12:50:28,964 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2022-10-16 12:50:28,965 INFO L130 BoogieDeclarations]: Found specification of procedure tx_set_idle [2022-10-16 12:50:28,965 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_set_idle [2022-10-16 12:50:28,965 INFO L130 BoogieDeclarations]: Found specification of procedure set_termios [2022-10-16 12:50:28,965 INFO L138 BoogieDeclarations]: Found implementation of procedure set_termios [2022-10-16 12:50:28,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-16 12:50:28,965 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-16 12:50:28,965 INFO L130 BoogieDeclarations]: Found specification of procedure write_room [2022-10-16 12:50:28,965 INFO L138 BoogieDeclarations]: Found implementation of procedure write_room [2022-10-16 12:50:28,966 INFO L130 BoogieDeclarations]: Found specification of procedure enable_loopback [2022-10-16 12:50:28,966 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_loopback [2022-10-16 12:50:28,966 INFO L130 BoogieDeclarations]: Found specification of procedure install [2022-10-16 12:50:28,966 INFO L138 BoogieDeclarations]: Found implementation of procedure install [2022-10-16 12:50:28,966 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_destroy [2022-10-16 12:50:28,966 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_destroy [2022-10-16 12:50:28,966 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-16 12:50:28,966 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-16 12:50:28,967 INFO L130 BoogieDeclarations]: Found specification of procedure throttle [2022-10-16 12:50:28,967 INFO L138 BoogieDeclarations]: Found implementation of procedure throttle [2022-10-16 12:50:28,967 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2022-10-16 12:50:28,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2022-10-16 12:50:28,967 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-16 12:50:28,967 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-16 12:50:28,967 INFO L130 BoogieDeclarations]: Found specification of procedure tx_load_fifo [2022-10-16 12:50:28,967 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_load_fifo [2022-10-16 12:50:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_tty_port [2022-10-16 12:50:28,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_tty_port [2022-10-16 12:50:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 12:50:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-10-16 12:50:28,968 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-10-16 12:50:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure tx_load_dma_buffer [2022-10-16 12:50:28,968 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_load_dma_buffer [2022-10-16 12:50:28,968 INFO L130 BoogieDeclarations]: Found specification of procedure program_hw [2022-10-16 12:50:28,969 INFO L138 BoogieDeclarations]: Found implementation of procedure program_hw [2022-10-16 12:50:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure carrier_raised [2022-10-16 12:50:28,969 INFO L138 BoogieDeclarations]: Found implementation of procedure carrier_raised [2022-10-16 12:50:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-16 12:50:28,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-16 12:50:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure reset_port [2022-10-16 12:50:28,969 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_port [2022-10-16 12:50:28,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 12:50:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-10-16 12:50:28,970 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-10-16 12:50:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 12:50:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2022-10-16 12:50:28,970 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2022-10-16 12:50:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure register_test [2022-10-16 12:50:28,970 INFO L138 BoogieDeclarations]: Found implementation of procedure register_test [2022-10-16 12:50:28,970 INFO L130 BoogieDeclarations]: Found specification of procedure flush_buffer [2022-10-16 12:50:28,971 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_buffer [2022-10-16 12:50:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 12:50:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure hangup [2022-10-16 12:50:28,971 INFO L138 BoogieDeclarations]: Found implementation of procedure hangup [2022-10-16 12:50:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-16 12:50:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure get_icount [2022-10-16 12:50:28,971 INFO L138 BoogieDeclarations]: Found implementation of procedure get_icount [2022-10-16 12:50:28,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_ops_disconnect_1 [2022-10-16 12:50:28,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_ops_disconnect_1 [2022-10-16 12:50:28,972 INFO L130 BoogieDeclarations]: Found specification of procedure write_control_reg [2022-10-16 12:50:28,972 INFO L138 BoogieDeclarations]: Found implementation of procedure write_control_reg [2022-10-16 12:50:28,972 INFO L130 BoogieDeclarations]: Found specification of procedure put_char [2022-10-16 12:50:28,972 INFO L138 BoogieDeclarations]: Found implementation of procedure put_char [2022-10-16 12:50:28,972 INFO L130 BoogieDeclarations]: Found specification of procedure unthrottle [2022-10-16 12:50:28,972 INFO L138 BoogieDeclarations]: Found implementation of procedure unthrottle [2022-10-16 12:50:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure tx_release [2022-10-16 12:50:28,973 INFO L138 BoogieDeclarations]: Found implementation of procedure tx_release [2022-10-16 12:50:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-10-16 12:50:28,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-10-16 12:50:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-10-16 12:50:28,973 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-10-16 12:50:28,973 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_mode [2022-10-16 12:50:28,973 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_mode [2022-10-16 12:50:28,974 INFO L130 BoogieDeclarations]: Found specification of procedure rx_get_frame [2022-10-16 12:50:28,974 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_get_frame [2022-10-16 12:50:28,974 INFO L130 BoogieDeclarations]: Found specification of procedure shutdown [2022-10-16 12:50:28,974 INFO L138 BoogieDeclarations]: Found implementation of procedure shutdown [2022-10-16 12:50:28,974 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-10-16 12:50:28,974 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-10-16 12:50:28,974 INFO L130 BoogieDeclarations]: Found specification of procedure send_xchar [2022-10-16 12:50:28,974 INFO L138 BoogieDeclarations]: Found implementation of procedure send_xchar [2022-10-16 12:50:28,975 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-10-16 12:50:28,975 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-10-16 12:50:28,975 INFO L130 BoogieDeclarations]: Found specification of procedure tiocmget [2022-10-16 12:50:28,975 INFO L138 BoogieDeclarations]: Found implementation of procedure tiocmget [2022-10-16 12:50:28,975 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_ioctl [2022-10-16 12:50:28,975 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_ioctl [2022-10-16 12:50:28,975 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg16 [2022-10-16 12:50:28,975 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg16 [2022-10-16 12:50:28,975 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2022-10-16 12:50:28,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2022-10-16 12:50:28,976 INFO L130 BoogieDeclarations]: Found specification of procedure get_signals [2022-10-16 12:50:28,976 INFO L138 BoogieDeclarations]: Found implementation of procedure get_signals [2022-10-16 12:50:28,976 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-10-16 12:50:28,976 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-10-16 12:50:28,976 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 12:50:28,976 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2022-10-16 12:50:28,976 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2022-10-16 12:50:28,977 INFO L130 BoogieDeclarations]: Found specification of procedure rx_start [2022-10-16 12:50:28,977 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_start [2022-10-16 12:50:28,977 INFO L130 BoogieDeclarations]: Found specification of procedure trace_block [2022-10-16 12:50:28,977 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_block [2022-10-16 12:50:28,977 INFO L130 BoogieDeclarations]: Found specification of procedure sanity_check [2022-10-16 12:50:28,977 INFO L138 BoogieDeclarations]: Found implementation of procedure sanity_check [2022-10-16 12:50:28,977 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 12:50:28,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 12:50:28,978 INFO L130 BoogieDeclarations]: Found specification of procedure read_status_reg [2022-10-16 12:50:28,978 INFO L138 BoogieDeclarations]: Found implementation of procedure read_status_reg [2022-10-16 12:50:29,937 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 12:50:29,947 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 12:51:03,190 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 12:51:03,236 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 12:51:03,236 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 12:51:03,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:51:03 BoogieIcfgContainer [2022-10-16 12:51:03,243 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 12:51:03,247 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 12:51:03,247 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 12:51:03,250 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 12:51:03,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:50:23" (1/3) ... [2022-10-16 12:51:03,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c860e76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:51:03, skipping insertion in model container [2022-10-16 12:51:03,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:50:27" (2/3) ... [2022-10-16 12:51:03,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c860e76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:51:03, skipping insertion in model container [2022-10-16 12:51:03,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:51:03" (3/3) ... [2022-10-16 12:51:03,266 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--tty--synclinkmp.ko-main.cil.out.i [2022-10-16 12:51:03,373 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 12:51:03,373 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 178 error locations. [2022-10-16 12:51:03,524 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 12:51:03,533 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;@2eb5cb41, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 12:51:03,533 INFO L358 AbstractCegarLoop]: Starting to check reachability of 178 error locations. [2022-10-16 12:51:03,550 INFO L276 IsEmpty]: Start isEmpty. Operand has 3311 states, 2312 states have (on average 1.5008650519031141) internal successors, (3470), 2546 states have internal predecessors, (3470), 710 states have call successors, (710), 110 states have call predecessors, (710), 110 states have return successors, (710), 704 states have call predecessors, (710), 710 states have call successors, (710) [2022-10-16 12:51:03,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 12:51:03,559 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:51:03,559 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:51:03,560 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [set_signalsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, set_signalsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, set_signalsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 175 more)] === [2022-10-16 12:51:03,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:51:03,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1025449036, now seen corresponding path program 1 times [2022-10-16 12:51:03,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:51:03,577 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627613607] [2022-10-16 12:51:03,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:51:03,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:51:03,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:51:04,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:51:04,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:51:04,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627613607] [2022-10-16 12:51:04,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627613607] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:51:04,316 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:51:04,316 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:51:04,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868514829] [2022-10-16 12:51:04,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:51:04,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:51:04,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:51:04,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:51:04,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:51:04,367 INFO L87 Difference]: Start difference. First operand has 3311 states, 2312 states have (on average 1.5008650519031141) internal successors, (3470), 2546 states have internal predecessors, (3470), 710 states have call successors, (710), 110 states have call predecessors, (710), 110 states have return successors, (710), 704 states have call predecessors, (710), 710 states have call successors, (710) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:51:05,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:51:05,016 INFO L93 Difference]: Finished difference Result 9871 states and 14904 transitions. [2022-10-16 12:51:05,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:51:05,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-16 12:51:05,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:51:05,086 INFO L225 Difference]: With dead ends: 9871 [2022-10-16 12:51:05,086 INFO L226 Difference]: Without dead ends: 6529 [2022-10-16 12:51:05,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:51:05,127 INFO L413 NwaCegarLoop]: 5448 mSDtfsCounter, 4705 mSDsluCounter, 4727 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4705 SdHoareTripleChecker+Valid, 10175 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:51:05,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4705 Valid, 10175 Invalid, 17 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:51:05,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6529 states. [2022-10-16 12:51:05,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6529 to 6369. [2022-10-16 12:51:05,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6369 states, 4579 states have (on average 1.4396156366018782) internal successors, (6592), 4844 states have internal predecessors, (6592), 1408 states have call successors, (1408), 218 states have call predecessors, (1408), 218 states have return successors, (1406), 1394 states have call predecessors, (1406), 1406 states have call successors, (1406) [2022-10-16 12:51:05,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6369 states to 6369 states and 9406 transitions. [2022-10-16 12:51:05,608 INFO L78 Accepts]: Start accepts. Automaton has 6369 states and 9406 transitions. Word has length 10 [2022-10-16 12:51:05,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:51:05,609 INFO L495 AbstractCegarLoop]: Abstraction has 6369 states and 9406 transitions. [2022-10-16 12:51:05,609 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:51:05,610 INFO L276 IsEmpty]: Start isEmpty. Operand 6369 states and 9406 transitions. [2022-10-16 12:51:05,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 12:51:05,614 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:51:05,614 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:51:05,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 12:51:05,615 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [set_signalsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, set_signalsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, set_signalsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 175 more)] === [2022-10-16 12:51:05,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:51:05,616 INFO L85 PathProgramCache]: Analyzing trace with hash -444328933, now seen corresponding path program 1 times [2022-10-16 12:51:05,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:51:05,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094607919] [2022-10-16 12:51:05,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:51:05,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:51:05,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:51:05,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:51:05,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:51:05,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094607919] [2022-10-16 12:51:05,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094607919] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:51:05,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:51:05,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:51:05,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828878795] [2022-10-16 12:51:05,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:51:05,879 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:51:05,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:51:05,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:51:05,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:51:05,880 INFO L87 Difference]: Start difference. First operand 6369 states and 9406 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:51:06,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:51:06,476 INFO L93 Difference]: Finished difference Result 17901 states and 26458 transitions. [2022-10-16 12:51:06,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:51:06,477 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 12:51:06,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:51:06,586 INFO L225 Difference]: With dead ends: 17901 [2022-10-16 12:51:06,586 INFO L226 Difference]: Without dead ends: 11535 [2022-10-16 12:51:06,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:51:06,642 INFO L413 NwaCegarLoop]: 5447 mSDtfsCounter, 3834 mSDsluCounter, 4710 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3834 SdHoareTripleChecker+Valid, 10157 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:51:06,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3834 Valid, 10157 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:51:06,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11535 states. [2022-10-16 12:51:07,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11535 to 11403. [2022-10-16 12:51:07,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11403 states, 8263 states have (on average 1.4431804429384) internal successors, (11925), 8624 states have internal predecessors, (11925), 2566 states have call successors, (2566), 410 states have call predecessors, (2566), 410 states have return successors, (2562), 2538 states have call predecessors, (2562), 2562 states have call successors, (2562) [2022-10-16 12:51:07,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11403 states to 11403 states and 17053 transitions. [2022-10-16 12:51:07,712 INFO L78 Accepts]: Start accepts. Automaton has 11403 states and 17053 transitions. Word has length 16 [2022-10-16 12:51:07,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:51:07,712 INFO L495 AbstractCegarLoop]: Abstraction has 11403 states and 17053 transitions. [2022-10-16 12:51:07,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:51:07,713 INFO L276 IsEmpty]: Start isEmpty. Operand 11403 states and 17053 transitions. [2022-10-16 12:51:07,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 12:51:07,722 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:51:07,722 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:51:07,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 12:51:07,722 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr32ASSERT_VIOLATIONINTEGER_OVERFLOW === [set_signalsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, set_signalsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, set_signalsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 175 more)] === [2022-10-16 12:51:07,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:51:07,729 INFO L85 PathProgramCache]: Analyzing trace with hash -392767976, now seen corresponding path program 1 times [2022-10-16 12:51:07,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:51:07,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728582032] [2022-10-16 12:51:07,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:51:07,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:51:07,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:51:08,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:51:08,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:51:08,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728582032] [2022-10-16 12:51:08,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728582032] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:51:08,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:51:08,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:51:08,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712142006] [2022-10-16 12:51:08,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:51:08,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:51:08,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:51:08,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:51:08,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:51:08,017 INFO L87 Difference]: Start difference. First operand 11403 states and 17053 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:51:09,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:51:09,254 INFO L93 Difference]: Finished difference Result 33975 states and 50797 transitions. [2022-10-16 12:51:09,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:51:09,255 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-16 12:51:09,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:51:09,428 INFO L225 Difference]: With dead ends: 33975 [2022-10-16 12:51:09,430 INFO L226 Difference]: Without dead ends: 22575 [2022-10-16 12:51:09,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:51:09,511 INFO L413 NwaCegarLoop]: 6343 mSDtfsCounter, 4623 mSDsluCounter, 4689 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4623 SdHoareTripleChecker+Valid, 11032 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:51:09,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4623 Valid, 11032 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:51:09,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22575 states. [2022-10-16 12:51:10,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22575 to 22415. [2022-10-16 12:51:10,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22415 states, 16363 states have (on average 1.4422171973354518) internal successors, (23599), 16922 states have internal predecessors, (23599), 5076 states have call successors, (5076), 812 states have call predecessors, (5076), 812 states have return successors, (5068), 5020 states have call predecessors, (5068), 5068 states have call successors, (5068) [2022-10-16 12:51:11,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22415 states to 22415 states and 33743 transitions. [2022-10-16 12:51:11,094 INFO L78 Accepts]: Start accepts. Automaton has 22415 states and 33743 transitions. Word has length 18 [2022-10-16 12:51:11,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:51:11,095 INFO L495 AbstractCegarLoop]: Abstraction has 22415 states and 33743 transitions. [2022-10-16 12:51:11,095 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:51:11,096 INFO L276 IsEmpty]: Start isEmpty. Operand 22415 states and 33743 transitions. [2022-10-16 12:51:11,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 12:51:11,099 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:51:11,099 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:51:11,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 12:51:11,100 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [set_signalsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, set_signalsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, set_signalsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 175 more)] === [2022-10-16 12:51:11,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:51:11,101 INFO L85 PathProgramCache]: Analyzing trace with hash -157624147, now seen corresponding path program 1 times [2022-10-16 12:51:11,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:51:11,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781495208] [2022-10-16 12:51:11,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:51:11,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:51:11,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:51:11,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:51:11,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:51:11,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781495208] [2022-10-16 12:51:11,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781495208] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:51:11,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:51:11,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:51:11,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501768317] [2022-10-16 12:51:11,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:51:11,462 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:51:11,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:51:11,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:51:11,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:51:11,463 INFO L87 Difference]: Start difference. First operand 22415 states and 33743 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:51:13,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:51:13,500 INFO L93 Difference]: Finished difference Result 65123 states and 98127 transitions. [2022-10-16 12:51:13,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:51:13,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-16 12:51:13,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:51:13,823 INFO L225 Difference]: With dead ends: 65123 [2022-10-16 12:51:13,823 INFO L226 Difference]: Without dead ends: 42711 [2022-10-16 12:51:14,013 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:51:14,015 INFO L413 NwaCegarLoop]: 6069 mSDtfsCounter, 4376 mSDsluCounter, 4654 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4376 SdHoareTripleChecker+Valid, 10723 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:51:14,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4376 Valid, 10723 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:51:14,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42711 states. [2022-10-16 12:51:16,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42711 to 42511. [2022-10-16 12:51:16,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42511 states, 31163 states have (on average 1.4446298495010108) internal successors, (45019), 32070 states have internal predecessors, (45019), 9664 states have call successors, (9664), 1520 states have call predecessors, (9664), 1520 states have return successors, (9656), 9552 states have call predecessors, (9656), 9648 states have call successors, (9656) [2022-10-16 12:51:17,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42511 states to 42511 states and 64339 transitions. [2022-10-16 12:51:17,062 INFO L78 Accepts]: Start accepts. Automaton has 42511 states and 64339 transitions. Word has length 20 [2022-10-16 12:51:17,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:51:17,063 INFO L495 AbstractCegarLoop]: Abstraction has 42511 states and 64339 transitions. [2022-10-16 12:51:17,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:51:17,063 INFO L276 IsEmpty]: Start isEmpty. Operand 42511 states and 64339 transitions. [2022-10-16 12:51:17,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 12:51:17,067 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:51:17,067 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:51:17,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 12:51:17,068 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [set_signalsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, set_signalsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, set_signalsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 175 more)] === [2022-10-16 12:51:17,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:51:17,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1623313173, now seen corresponding path program 1 times [2022-10-16 12:51:17,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:51:17,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333452465] [2022-10-16 12:51:17,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:51:17,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:51:17,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:51:17,898 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:51:17,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:51:17,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333452465] [2022-10-16 12:51:17,900 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333452465] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:51:17,900 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:51:17,900 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 12:51:17,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617916128] [2022-10-16 12:51:17,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:51:17,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:51:17,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:51:17,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:51:17,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:51:17,903 INFO L87 Difference]: Start difference. First operand 42511 states and 64339 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:51:22,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:51:22,516 INFO L93 Difference]: Finished difference Result 106375 states and 160887 transitions. [2022-10-16 12:51:22,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:51:22,517 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-10-16 12:51:22,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:51:23,018 INFO L225 Difference]: With dead ends: 106375 [2022-10-16 12:51:23,018 INFO L226 Difference]: Without dead ends: 63867 [2022-10-16 12:51:23,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 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 12:51:23,467 INFO L413 NwaCegarLoop]: 5178 mSDtfsCounter, 6763 mSDsluCounter, 8486 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 486 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6992 SdHoareTripleChecker+Valid, 13664 SdHoareTripleChecker+Invalid, 758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 486 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-10-16 12:51:23,467 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6992 Valid, 13664 Invalid, 758 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [486 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-10-16 12:51:23,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63867 states. [2022-10-16 12:51:27,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63867 to 63683. [2022-10-16 12:51:27,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63683 states, 46743 states have (on average 1.4445585435252337) internal successors, (67523), 48022 states have internal predecessors, (67523), 14496 states have call successors, (14496), 2280 states have call predecessors, (14496), 2280 states have return successors, (14484), 14328 states have call predecessors, (14484), 14472 states have call successors, (14484) [2022-10-16 12:51:28,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63683 states to 63683 states and 96503 transitions. [2022-10-16 12:51:28,604 INFO L78 Accepts]: Start accepts. Automaton has 63683 states and 96503 transitions. Word has length 25 [2022-10-16 12:51:28,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:51:28,605 INFO L495 AbstractCegarLoop]: Abstraction has 63683 states and 96503 transitions. [2022-10-16 12:51:28,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:51:28,606 INFO L276 IsEmpty]: Start isEmpty. Operand 63683 states and 96503 transitions. [2022-10-16 12:51:28,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 12:51:28,612 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:51:28,612 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:51:28,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 12:51:28,613 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [set_signalsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, set_signalsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, set_signalsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 175 more)] === [2022-10-16 12:51:28,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:51:28,614 INFO L85 PathProgramCache]: Analyzing trace with hash -263319903, now seen corresponding path program 1 times [2022-10-16 12:51:28,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:51:28,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447542766] [2022-10-16 12:51:28,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:51:28,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:51:28,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:51:29,055 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 12:51:29,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:51:29,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447542766] [2022-10-16 12:51:29,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447542766] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:51:29,056 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:51:29,056 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 12:51:29,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074817290] [2022-10-16 12:51:29,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:51:29,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:51:29,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:51:29,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:51:29,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:51:29,059 INFO L87 Difference]: Start difference. First operand 63683 states and 96503 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:51:33,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:51:33,776 INFO L93 Difference]: Finished difference Result 107297 states and 162295 transitions. [2022-10-16 12:51:33,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:51:33,776 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2022-10-16 12:51:33,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:51:34,364 INFO L225 Difference]: With dead ends: 107297 [2022-10-16 12:51:34,365 INFO L226 Difference]: Without dead ends: 106931 [2022-10-16 12:51:34,418 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:51:34,422 INFO L413 NwaCegarLoop]: 5484 mSDtfsCounter, 4658 mSDsluCounter, 4676 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4658 SdHoareTripleChecker+Valid, 10160 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 12:51:34,425 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4658 Valid, 10160 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 12:51:34,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106931 states. [2022-10-16 12:51:39,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106931 to 106066. [2022-10-16 12:51:39,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106066 states, 77932 states have (on average 1.441949391777447) internal successors, (112374), 79933 states have internal predecessors, (112374), 24161 states have call successors, (24161), 3810 states have call predecessors, (24161), 3809 states have return successors, (24164), 23904 states have call predecessors, (24164), 24144 states have call successors, (24164) [2022-10-16 12:51:40,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106066 states to 106066 states and 160699 transitions. [2022-10-16 12:51:40,428 INFO L78 Accepts]: Start accepts. Automaton has 106066 states and 160699 transitions. Word has length 30 [2022-10-16 12:51:40,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:51:40,428 INFO L495 AbstractCegarLoop]: Abstraction has 106066 states and 160699 transitions. [2022-10-16 12:51:40,428 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:51:40,429 INFO L276 IsEmpty]: Start isEmpty. Operand 106066 states and 160699 transitions. [2022-10-16 12:51:40,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-16 12:51:40,434 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:51:40,434 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:51:40,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 12:51:40,436 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [set_signalsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, set_signalsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, set_signalsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 175 more)] === [2022-10-16 12:51:40,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:51:40,436 INFO L85 PathProgramCache]: Analyzing trace with hash -1617809882, now seen corresponding path program 1 times [2022-10-16 12:51:40,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:51:40,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504688750] [2022-10-16 12:51:40,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:51:40,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:51:40,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:51:40,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 12:51:40,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:51:40,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:51:40,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:51:40,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504688750] [2022-10-16 12:51:40,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504688750] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:51:40,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:51:40,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:51:40,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22427039] [2022-10-16 12:51:40,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:51:40,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:51:40,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:51:40,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:51:40,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:51:40,745 INFO L87 Difference]: Start difference. First operand 106066 states and 160699 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 12:51:47,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:51:47,346 INFO L93 Difference]: Finished difference Result 254574 states and 382460 transitions. [2022-10-16 12:51:47,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:51:47,347 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2022-10-16 12:51:47,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:51:48,260 INFO L225 Difference]: With dead ends: 254574 [2022-10-16 12:51:48,260 INFO L226 Difference]: Without dead ends: 148511 [2022-10-16 12:51:48,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:51:48,817 INFO L413 NwaCegarLoop]: 6811 mSDtfsCounter, 2588 mSDsluCounter, 4431 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2588 SdHoareTripleChecker+Valid, 11242 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 12:51:48,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2588 Valid, 11242 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 12:51:48,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148511 states. [2022-10-16 12:51:55,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148511 to 148312. [2022-10-16 12:51:55,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148312 states, 109507 states have (on average 1.4240459514003672) internal successors, (155943), 112074 states have internal predecessors, (155943), 32817 states have call successors, (32817), 5825 states have call predecessors, (32817), 5824 states have return successors, (32824), 32444 states have call predecessors, (32824), 32784 states have call successors, (32824) [2022-10-16 12:51:56,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148312 states to 148312 states and 221584 transitions. [2022-10-16 12:51:56,502 INFO L78 Accepts]: Start accepts. Automaton has 148312 states and 221584 transitions. Word has length 32 [2022-10-16 12:51:56,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:51:56,502 INFO L495 AbstractCegarLoop]: Abstraction has 148312 states and 221584 transitions. [2022-10-16 12:51:56,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 12:51:56,503 INFO L276 IsEmpty]: Start isEmpty. Operand 148312 states and 221584 transitions. [2022-10-16 12:51:56,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-16 12:51:56,508 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:51:56,508 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:51:56,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 12:51:56,509 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [set_signalsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, set_signalsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, set_signalsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 175 more)] === [2022-10-16 12:51:56,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:51:56,509 INFO L85 PathProgramCache]: Analyzing trace with hash 1286653988, now seen corresponding path program 1 times [2022-10-16 12:51:56,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:51:56,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299545919] [2022-10-16 12:51:56,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:51:56,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:51:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:51:56,769 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 12:51:56,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:51:56,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299545919] [2022-10-16 12:51:56,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299545919] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:51:56,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:51:56,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-10-16 12:51:56,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744947905] [2022-10-16 12:51:56,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:51:56,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:51:56,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:51:56,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:51:56,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:51:56,772 INFO L87 Difference]: Start difference. First operand 148312 states and 221584 transitions. Second operand has 3 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:52:03,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:52:03,054 INFO L93 Difference]: Finished difference Result 199904 states and 299014 transitions. [2022-10-16 12:52:03,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:52:03,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-10-16 12:52:03,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:52:04,056 INFO L225 Difference]: With dead ends: 199904 [2022-10-16 12:52:04,056 INFO L226 Difference]: Without dead ends: 199903 [2022-10-16 12:52:04,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:52:04,133 INFO L413 NwaCegarLoop]: 5695 mSDtfsCounter, 3511 mSDsluCounter, 4715 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3511 SdHoareTripleChecker+Valid, 10410 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:52:04,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3511 Valid, 10410 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:52:04,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199903 states. [2022-10-16 12:52:13,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199903 to 199648. [2022-10-16 12:52:13,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199648 states, 147317 states have (on average 1.4279207423447395) internal successors, (210357), 150860 states have internal predecessors, (210357), 44233 states have call successors, (44233), 7935 states have call predecessors, (44233), 7934 states have return successors, (44224), 43744 states have call predecessors, (44224), 44184 states have call successors, (44224) [2022-10-16 12:52:14,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199648 states to 199648 states and 298814 transitions. [2022-10-16 12:52:14,827 INFO L78 Accepts]: Start accepts. Automaton has 199648 states and 298814 transitions. Word has length 31 [2022-10-16 12:52:14,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:52:14,828 INFO L495 AbstractCegarLoop]: Abstraction has 199648 states and 298814 transitions. [2022-10-16 12:52:14,828 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:52:14,829 INFO L276 IsEmpty]: Start isEmpty. Operand 199648 states and 298814 transitions. [2022-10-16 12:52:14,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-16 12:52:14,831 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:52:14,831 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:52:14,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 12:52:14,832 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [set_signalsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, set_signalsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, set_signalsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 175 more)] === [2022-10-16 12:52:14,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:52:14,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1231575113, now seen corresponding path program 1 times [2022-10-16 12:52:14,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:52:14,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756702336] [2022-10-16 12:52:14,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:52:14,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:52:14,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:52:15,640 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 12:52:15,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:52:15,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756702336] [2022-10-16 12:52:15,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756702336] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:52:15,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:52:15,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-10-16 12:52:15,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681743124] [2022-10-16 12:52:15,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:52:15,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:52:15,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:52:15,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:52:15,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:52:15,645 INFO L87 Difference]: Start difference. First operand 199648 states and 298814 transitions. Second operand has 3 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:52:23,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:52:23,115 INFO L93 Difference]: Finished difference Result 199648 states and 298814 transitions. [2022-10-16 12:52:23,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:52:23,115 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 32 [2022-10-16 12:52:23,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:52:23,987 INFO L225 Difference]: With dead ends: 199648 [2022-10-16 12:52:23,987 INFO L226 Difference]: Without dead ends: 199647 [2022-10-16 12:52:24,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:52:24,061 INFO L413 NwaCegarLoop]: 4718 mSDtfsCounter, 4692 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4692 SdHoareTripleChecker+Valid, 4718 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:52:24,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4692 Valid, 4718 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:52:24,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199647 states. [2022-10-16 12:52:34,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199647 to 199647. [2022-10-16 12:52:34,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199647 states, 147317 states have (on average 1.427649219031069) internal successors, (210317), 150859 states have internal predecessors, (210317), 44233 states have call successors, (44233), 7935 states have call predecessors, (44233), 7934 states have return successors, (44224), 43744 states have call predecessors, (44224), 44184 states have call successors, (44224) [2022-10-16 12:52:36,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199647 states to 199647 states and 298774 transitions. [2022-10-16 12:52:36,315 INFO L78 Accepts]: Start accepts. Automaton has 199647 states and 298774 transitions. Word has length 32 [2022-10-16 12:52:36,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:52:36,315 INFO L495 AbstractCegarLoop]: Abstraction has 199647 states and 298774 transitions. [2022-10-16 12:52:36,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:52:36,319 INFO L276 IsEmpty]: Start isEmpty. Operand 199647 states and 298774 transitions. [2022-10-16 12:52:36,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-16 12:52:36,339 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:52:36,339 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:52:36,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 12:52:36,340 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [set_signalsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, set_signalsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, set_signalsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 175 more)] === [2022-10-16 12:52:36,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:52:36,340 INFO L85 PathProgramCache]: Analyzing trace with hash 2042990375, now seen corresponding path program 1 times [2022-10-16 12:52:36,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:52:36,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745024605] [2022-10-16 12:52:36,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:52:36,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:52:36,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:52:36,971 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 12:52:36,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:52:36,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745024605] [2022-10-16 12:52:36,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745024605] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:52:36,972 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069468910] [2022-10-16 12:52:36,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:52:36,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:52:36,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:52:36,974 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:52:36,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 12:52:37,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:52:37,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 2704 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 12:52:37,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:52:38,088 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 12:52:38,088 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:52:38,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069468910] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:52:38,088 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:52:38,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 6 [2022-10-16 12:52:38,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191696174] [2022-10-16 12:52:38,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:52:38,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:52:38,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:52:38,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:52:38,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:52:38,094 INFO L87 Difference]: Start difference. First operand 199647 states and 298774 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:52:51,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:52:51,745 INFO L93 Difference]: Finished difference Result 399531 states and 597785 transitions. [2022-10-16 12:52:51,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:52:51,746 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 38 [2022-10-16 12:52:51,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:52:53,038 INFO L225 Difference]: With dead ends: 399531 [2022-10-16 12:52:53,038 INFO L226 Difference]: Without dead ends: 199647 [2022-10-16 12:52:53,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:52:53,866 INFO L413 NwaCegarLoop]: 4720 mSDtfsCounter, 1 mSDsluCounter, 9432 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 14152 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:52:53,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 14152 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:52:54,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199647 states. [2022-10-16 12:53:04,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199647 to 199647. [2022-10-16 12:53:04,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199647 states, 147317 states have (on average 1.4268346490900574) internal successors, (210197), 150859 states have internal predecessors, (210197), 44233 states have call successors, (44233), 7935 states have call predecessors, (44233), 7934 states have return successors, (44224), 43744 states have call predecessors, (44224), 44184 states have call successors, (44224) [2022-10-16 12:53:06,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199647 states to 199647 states and 298654 transitions. [2022-10-16 12:53:06,415 INFO L78 Accepts]: Start accepts. Automaton has 199647 states and 298654 transitions. Word has length 38 [2022-10-16 12:53:06,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:53:06,415 INFO L495 AbstractCegarLoop]: Abstraction has 199647 states and 298654 transitions. [2022-10-16 12:53:06,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:53:06,415 INFO L276 IsEmpty]: Start isEmpty. Operand 199647 states and 298654 transitions. [2022-10-16 12:53:06,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 12:53:06,423 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:53:06,423 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:53:06,467 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 12:53:06,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-16 12:53:06,639 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [set_signalsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, set_signalsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, set_signalsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 175 more)] === [2022-10-16 12:53:06,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:53:06,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1629013824, now seen corresponding path program 1 times [2022-10-16 12:53:06,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:53:06,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328946765] [2022-10-16 12:53:06,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:53:06,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:53:06,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:07,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-10-16 12:53:07,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:07,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 12:53:07,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:53:07,836 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 12:53:07,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:53:07,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328946765] [2022-10-16 12:53:07,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328946765] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:53:07,837 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:53:07,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 12:53:07,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554709677] [2022-10-16 12:53:07,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:53:07,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 12:53:07,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:53:07,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 12:53:07,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:53:07,839 INFO L87 Difference]: Start difference. First operand 199647 states and 298654 transitions. Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 5 states have internal predecessors, (50), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 12:53:11,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []