/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-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:34:32,727 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:34:32,730 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:34:32,816 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:34:32,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:34:32,825 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:34:32,830 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:34:32,838 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:34:32,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:34:32,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:34:32,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:34:32,851 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:34:32,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:34:32,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:34:32,854 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:34:32,856 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:34:32,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:34:32,858 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:34:32,860 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:34:32,862 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:34:32,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:34:32,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:34:32,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:34:32,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:34:32,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:34:32,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:34:32,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:34:32,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:34:32,875 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:34:32,876 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:34:32,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:34:32,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:34:32,878 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:34:32,879 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:34:32,880 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:34:32,880 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:34:32,881 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:34:32,881 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:34:32,882 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:34:32,883 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:34:32,884 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:34:32,885 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:34:32,913 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:34:32,913 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:34:32,913 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:34:32,914 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:34:32,915 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:34:32,915 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:34:32,916 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:34:32,916 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:34:32,916 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:34:32,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:34:32,916 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:34:32,917 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:34:32,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:34:32,917 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:34:32,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:34:32,917 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:34:32,918 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:34:32,918 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:34:32,918 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:34:32,918 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:34:32,918 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:34:32,919 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:34:32,919 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:34:32,919 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:34:32,919 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:34:32,919 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:34:32,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:34:32,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:34:32,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:34:32,920 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:34:32,920 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:34:32,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:34:32,921 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:34:32,921 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:34:33,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:34:33,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:34:33,336 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:34:33,338 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:34:33,338 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:34:33,340 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-10-15 21:34:33,418 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/176677956/ca10464679824a10b5b4b4e648293fe0/FLAGb1df1a5f1 [2022-10-15 21:34:34,577 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:34:34,578 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-10-15 21:34:34,643 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/176677956/ca10464679824a10b5b4b4e648293fe0/FLAGb1df1a5f1 [2022-10-15 21:34:34,922 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/176677956/ca10464679824a10b5b4b4e648293fe0 [2022-10-15 21:34:34,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:34:34,935 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:34:34,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:34:34,942 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:34:34,947 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:34:34,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:34:34" (1/1) ... [2022-10-15 21:34:34,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6abad003 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:34, skipping insertion in model container [2022-10-15 21:34:34,955 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:34:34" (1/1) ... [2022-10-15 21:34:34,967 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:34:35,144 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:34:36,745 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-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i[216887,216900] [2022-10-15 21:34:36,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:34:36,792 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:34:37,294 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-validator-v0.8/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i[216887,216900] [2022-10-15 21:34:37,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:34:37,528 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:34:37,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:37 WrapperNode [2022-10-15 21:34:37,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:34:37,530 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:34:37,530 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:34:37,531 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:34:37,542 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:37" (1/1) ... [2022-10-15 21:34:37,655 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:37" (1/1) ... [2022-10-15 21:34:37,790 INFO L138 Inliner]: procedures = 187, calls = 873, calls flagged for inlining = 93, calls inlined = 91, statements flattened = 3308 [2022-10-15 21:34:37,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:34:37,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:34:37,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:34:37,791 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:34:37,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:37" (1/1) ... [2022-10-15 21:34:37,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:37" (1/1) ... [2022-10-15 21:34:37,831 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:37" (1/1) ... [2022-10-15 21:34:37,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:37" (1/1) ... [2022-10-15 21:34:37,939 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:37" (1/1) ... [2022-10-15 21:34:37,975 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:37" (1/1) ... [2022-10-15 21:34:38,008 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:37" (1/1) ... [2022-10-15 21:34:38,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:37" (1/1) ... [2022-10-15 21:34:38,070 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:34:38,071 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:34:38,071 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:34:38,071 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:34:38,073 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:37" (1/1) ... [2022-10-15 21:34:38,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:34:38,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:34:38,121 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 21:34:38,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 21:34:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2022-10-15 21:34:38,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2022-10-15 21:34:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure sl_tx_timeout [2022-10-15 21:34:38,190 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_tx_timeout [2022-10-15 21:34:38,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:34:38,191 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-10-15 21:34:38,191 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2022-10-15 21:34:38,191 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2022-10-15 21:34:38,191 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 21:34:38,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 21:34:38,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-15 21:34:38,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-15 21:34:38,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:34:38,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-10-15 21:34:38,192 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-10-15 21:34:38,192 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-10-15 21:34:38,192 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-10-15 21:34:38,192 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-10-15 21:34:38,192 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-10-15 21:34:38,193 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2022-10-15 21:34:38,193 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2022-10-15 21:34:38,193 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-15 21:34:38,193 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-15 21:34:38,193 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-10-15 21:34:38,193 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-10-15 21:34:38,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:34:38,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:34:38,194 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-15 21:34:38,194 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-15 21:34:38,194 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-10-15 21:34:38,194 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-10-15 21:34:38,194 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-15 21:34:38,194 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-15 21:34:38,194 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_bufs [2022-10-15 21:34:38,195 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_bufs [2022-10-15 21:34:38,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:34:38,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 21:34:38,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 21:34:38,195 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-10-15 21:34:38,195 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-10-15 21:34:38,195 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-10-15 21:34:38,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-10-15 21:34:38,196 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 21:34:38,196 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 21:34:38,196 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-10-15 21:34:38,196 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-10-15 21:34:38,196 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-10-15 21:34:38,196 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-10-15 21:34:38,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:34:38,197 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2022-10-15 21:34:38,197 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2022-10-15 21:34:38,197 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-10-15 21:34:38,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-10-15 21:34:38,197 INFO L130 BoogieDeclarations]: Found specification of procedure sl_bump [2022-10-15 21:34:38,197 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_bump [2022-10-15 21:34:38,198 INFO L130 BoogieDeclarations]: Found specification of procedure slip_ioctl [2022-10-15 21:34:38,198 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_ioctl [2022-10-15 21:34:38,198 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:34:38,198 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-10-15 21:34:38,198 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-10-15 21:34:38,198 INFO L130 BoogieDeclarations]: Found specification of procedure slip_close [2022-10-15 21:34:38,199 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_close [2022-10-15 21:34:38,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:34:38,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:34:38,199 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-15 21:34:38,199 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2022-10-15 21:34:38,199 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2022-10-15 21:34:38,199 INFO L130 BoogieDeclarations]: Found specification of procedure slip_compat_ioctl [2022-10-15 21:34:38,200 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_compat_ioctl [2022-10-15 21:34:38,200 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-10-15 21:34:38,200 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-10-15 21:34:38,200 INFO L130 BoogieDeclarations]: Found specification of procedure sl_get_stats64 [2022-10-15 21:34:38,200 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_get_stats64 [2022-10-15 21:34:38,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:34:38,201 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-10-15 21:34:38,201 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-10-15 21:34:38,201 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-10-15 21:34:38,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-10-15 21:34:38,201 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-10-15 21:34:38,201 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-10-15 21:34:38,201 INFO L130 BoogieDeclarations]: Found specification of procedure sl_ioctl [2022-10-15 21:34:38,202 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_ioctl [2022-10-15 21:34:38,202 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2022-10-15 21:34:38,202 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hangup [2022-10-15 21:34:38,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:34:38,202 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2022-10-15 21:34:38,202 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2022-10-15 21:34:38,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:34:38,203 INFO L130 BoogieDeclarations]: Found specification of procedure tty_devnum [2022-10-15 21:34:38,203 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_devnum [2022-10-15 21:34:38,203 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-15 21:34:38,203 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-15 21:34:38,203 INFO L130 BoogieDeclarations]: Found specification of procedure slip_hangup [2022-10-15 21:34:38,203 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_hangup [2022-10-15 21:34:38,203 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-15 21:34:38,204 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-15 21:34:38,204 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-10-15 21:34:38,204 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-10-15 21:34:38,204 INFO L130 BoogieDeclarations]: Found specification of procedure sl_change_mtu [2022-10-15 21:34:38,204 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_change_mtu [2022-10-15 21:34:38,204 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-10-15 21:34:38,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-10-15 21:34:38,205 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-10-15 21:34:38,205 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-10-15 21:34:38,205 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-10-15 21:34:38,205 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-10-15 21:34:38,205 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-10-15 21:34:38,205 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-10-15 21:34:38,205 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-10-15 21:34:38,205 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-10-15 21:34:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:34:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-10-15 21:34:38,206 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-10-15 21:34:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2022-10-15 21:34:38,206 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2022-10-15 21:34:38,206 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-10-15 21:34:38,206 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-10-15 21:34:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 21:34:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:34:38,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:34:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure sl_unlock [2022-10-15 21:34:38,207 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_unlock [2022-10-15 21:34:38,207 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-10-15 21:34:38,207 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-10-15 21:34:38,864 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:34:38,878 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:34:39,391 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-15 21:34:42,717 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:34:42,788 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:34:42,788 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 21:34:42,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:34:42 BoogieIcfgContainer [2022-10-15 21:34:42,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:34:42,798 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:34:42,799 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:34:42,803 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:34:42,803 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:34:34" (1/3) ... [2022-10-15 21:34:42,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48433353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:34:42, skipping insertion in model container [2022-10-15 21:34:42,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:34:37" (2/3) ... [2022-10-15 21:34:42,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48433353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:34:42, skipping insertion in model container [2022-10-15 21:34:42,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:34:42" (3/3) ... [2022-10-15 21:34:42,806 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-10-15 21:34:42,830 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:34:42,831 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 80 error locations. [2022-10-15 21:34:42,931 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:34:42,940 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;@77c169f7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:34:42,941 INFO L358 AbstractCegarLoop]: Starting to check reachability of 80 error locations. [2022-10-15 21:34:42,952 INFO L276 IsEmpty]: Start isEmpty. Operand has 1266 states, 897 states have (on average 1.4782608695652173) internal successors, (1326), 1008 states have internal predecessors, (1326), 236 states have call successors, (236), 53 states have call predecessors, (236), 52 states have return successors, (231), 229 states have call predecessors, (231), 231 states have call successors, (231) [2022-10-15 21:34:42,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2022-10-15 21:34:42,977 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:34:42,978 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:34:42,979 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [sl_tx_timeoutErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_tx_timeoutErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_ioctlErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2022-10-15 21:34:42,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:34:42,986 INFO L85 PathProgramCache]: Analyzing trace with hash -1317547548, now seen corresponding path program 1 times [2022-10-15 21:34:42,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:34:42,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537830280] [2022-10-15 21:34:42,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:34:42,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:34:43,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:43,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:34:43,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:43,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:34:43,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:43,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:34:43,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:43,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-15 21:34:43,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:43,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:34:43,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:43,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:34:43,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:43,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 21:34:43,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:44,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:34:44,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:44,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:34:44,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:44,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 21:34:44,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:44,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-15 21:34:44,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:44,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 21:34:44,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:44,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:34:44,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:44,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:34:44,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:44,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-15 21:34:44,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:44,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:34:44,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:44,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:34:44,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:44,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-15 21:34:44,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:44,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-15 21:34:44,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:44,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-15 21:34:44,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:44,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-15 21:34:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:44,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-10-15 21:34:44,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:44,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-15 21:34:44,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:44,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-10-15 21:34:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:44,237 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2022-10-15 21:34:44,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:34:44,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537830280] [2022-10-15 21:34:44,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537830280] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:34:44,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:34:44,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 21:34:44,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615933029] [2022-10-15 21:34:44,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:34:44,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 21:34:44,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:34:44,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 21:34:44,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:34:44,289 INFO L87 Difference]: Start difference. First operand has 1266 states, 897 states have (on average 1.4782608695652173) internal successors, (1326), 1008 states have internal predecessors, (1326), 236 states have call successors, (236), 53 states have call predecessors, (236), 52 states have return successors, (231), 229 states have call predecessors, (231), 231 states have call successors, (231) Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-10-15 21:34:47,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:34:51,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:34:53,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:34:53,618 INFO L93 Difference]: Finished difference Result 3910 states and 5735 transitions. [2022-10-15 21:34:53,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 21:34:53,629 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 157 [2022-10-15 21:34:53,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:34:53,679 INFO L225 Difference]: With dead ends: 3910 [2022-10-15 21:34:53,679 INFO L226 Difference]: Without dead ends: 2623 [2022-10-15 21:34:53,698 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-10-15 21:34:53,707 INFO L413 NwaCegarLoop]: 1781 mSDtfsCounter, 5743 mSDsluCounter, 2291 mSDsCounter, 0 mSdLazyCounter, 2131 mSolverCounterSat, 2777 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5939 SdHoareTripleChecker+Valid, 4072 SdHoareTripleChecker+Invalid, 4908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2777 IncrementalHoareTripleChecker+Valid, 2131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2022-10-15 21:34:53,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5939 Valid, 4072 Invalid, 4908 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2777 Valid, 2131 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2022-10-15 21:34:53,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2623 states. [2022-10-15 21:34:54,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2623 to 2297. [2022-10-15 21:34:54,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2297 states, 1704 states have (on average 1.4471830985915493) internal successors, (2466), 1810 states have internal predecessors, (2466), 434 states have call successors, (434), 101 states have call predecessors, (434), 101 states have return successors, (434), 430 states have call predecessors, (434), 434 states have call successors, (434) [2022-10-15 21:34:54,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2297 states to 2297 states and 3334 transitions. [2022-10-15 21:34:54,076 INFO L78 Accepts]: Start accepts. Automaton has 2297 states and 3334 transitions. Word has length 157 [2022-10-15 21:34:54,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:34:54,078 INFO L495 AbstractCegarLoop]: Abstraction has 2297 states and 3334 transitions. [2022-10-15 21:34:54,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 3 states have internal predecessors, (46), 1 states have call successors, (16), 5 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-10-15 21:34:54,078 INFO L276 IsEmpty]: Start isEmpty. Operand 2297 states and 3334 transitions. [2022-10-15 21:34:54,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2022-10-15 21:34:54,084 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:34:54,085 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:34:54,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:34:54,086 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting sl_change_mtuErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [sl_tx_timeoutErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_tx_timeoutErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_ioctlErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2022-10-15 21:34:54,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:34:54,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1829199446, now seen corresponding path program 1 times [2022-10-15 21:34:54,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:34:54,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655488246] [2022-10-15 21:34:54,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:34:54,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:34:54,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:54,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:34:54,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:54,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:34:54,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:54,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:34:54,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:54,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-15 21:34:54,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:54,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:34:54,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:54,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:34:54,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:54,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 21:34:54,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:54,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:34:54,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:54,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:34:54,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:54,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 21:34:54,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:54,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-15 21:34:54,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:54,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 21:34:54,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:54,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:34:54,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:54,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:34:54,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:54,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-15 21:34:54,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:54,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:34:54,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:54,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:34:54,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:54,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-15 21:34:54,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:54,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-15 21:34:54,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:54,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-15 21:34:54,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:54,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-15 21:34:54,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:54,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-10-15 21:34:54,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:54,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-15 21:34:54,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:54,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-10-15 21:34:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:54,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-10-15 21:34:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:34:54,732 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2022-10-15 21:34:54,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:34:54,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655488246] [2022-10-15 21:34:54,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655488246] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:34:54,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:34:54,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 21:34:54,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752262547] [2022-10-15 21:34:54,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:34:54,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 21:34:54,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:34:54,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 21:34:54,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:34:54,740 INFO L87 Difference]: Start difference. First operand 2297 states and 3334 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-10-15 21:34:59,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:35:02,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:35:02,781 INFO L93 Difference]: Finished difference Result 6674 states and 9727 transitions. [2022-10-15 21:35:02,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-15 21:35:02,782 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 161 [2022-10-15 21:35:02,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:35:02,830 INFO L225 Difference]: With dead ends: 6674 [2022-10-15 21:35:02,830 INFO L226 Difference]: Without dead ends: 4413 [2022-10-15 21:35:02,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-10-15 21:35:02,849 INFO L413 NwaCegarLoop]: 1886 mSDtfsCounter, 3935 mSDsluCounter, 3028 mSDsCounter, 0 mSdLazyCounter, 2809 mSolverCounterSat, 1759 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4101 SdHoareTripleChecker+Valid, 4914 SdHoareTripleChecker+Invalid, 4569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1759 IncrementalHoareTripleChecker+Valid, 2809 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-10-15 21:35:02,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4101 Valid, 4914 Invalid, 4569 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1759 Valid, 2809 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-10-15 21:35:02,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4413 states. [2022-10-15 21:35:03,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4413 to 3975. [2022-10-15 21:35:03,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3975 states, 2995 states have (on average 1.4424040066777963) internal successors, (4320), 3143 states have internal predecessors, (4320), 733 states have call successors, (733), 189 states have call predecessors, (733), 189 states have return successors, (733), 724 states have call predecessors, (733), 733 states have call successors, (733) [2022-10-15 21:35:03,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3975 states to 3975 states and 5786 transitions. [2022-10-15 21:35:03,178 INFO L78 Accepts]: Start accepts. Automaton has 3975 states and 5786 transitions. Word has length 161 [2022-10-15 21:35:03,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:35:03,183 INFO L495 AbstractCegarLoop]: Abstraction has 3975 states and 5786 transitions. [2022-10-15 21:35:03,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 3 states have internal predecessors, (47), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-10-15 21:35:03,183 INFO L276 IsEmpty]: Start isEmpty. Operand 3975 states and 5786 transitions. [2022-10-15 21:35:03,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2022-10-15 21:35:03,190 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:35:03,191 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:35:03,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:35:03,191 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [sl_tx_timeoutErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_tx_timeoutErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_ioctlErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2022-10-15 21:35:03,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:35:03,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1799363128, now seen corresponding path program 1 times [2022-10-15 21:35:03,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:35:03,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967978382] [2022-10-15 21:35:03,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:35:03,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:35:03,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:03,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:35:03,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:03,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:03,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:03,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:03,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:03,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-15 21:35:03,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:03,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:03,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:03,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:03,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:03,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 21:35:03,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:03,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:03,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:03,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:03,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:03,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 21:35:03,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:03,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-15 21:35:03,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:03,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 21:35:03,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:03,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:03,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:03,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:03,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:03,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-15 21:35:03,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:03,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:03,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:03,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:03,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:03,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-15 21:35:03,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:03,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-15 21:35:03,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:03,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-15 21:35:03,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:03,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-15 21:35:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:03,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-10-15 21:35:03,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:03,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-15 21:35:03,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:03,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-10-15 21:35:03,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:03,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-10-15 21:35:03,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:03,849 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2022-10-15 21:35:03,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:35:03,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967978382] [2022-10-15 21:35:03,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967978382] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:35:03,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:35:03,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-10-15 21:35:03,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301742510] [2022-10-15 21:35:03,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:35:03,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-15 21:35:03,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:35:03,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-15 21:35:03,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-10-15 21:35:03,854 INFO L87 Difference]: Start difference. First operand 3975 states and 5786 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-10-15 21:35:06,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:35:11,287 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:35:14,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:35:18,895 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-15 21:35:23,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:35:23,835 INFO L93 Difference]: Finished difference Result 10449 states and 15169 transitions. [2022-10-15 21:35:23,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-15 21:35:23,836 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 164 [2022-10-15 21:35:23,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:35:23,890 INFO L225 Difference]: With dead ends: 10449 [2022-10-15 21:35:23,890 INFO L226 Difference]: Without dead ends: 6510 [2022-10-15 21:35:23,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2022-10-15 21:35:23,913 INFO L413 NwaCegarLoop]: 2047 mSDtfsCounter, 3035 mSDsluCounter, 3592 mSDsCounter, 0 mSdLazyCounter, 3631 mSolverCounterSat, 1535 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3181 SdHoareTripleChecker+Valid, 5639 SdHoareTripleChecker+Invalid, 5168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1535 IncrementalHoareTripleChecker+Valid, 3631 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:35:23,914 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3181 Valid, 5639 Invalid, 5168 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1535 Valid, 3631 Invalid, 2 Unknown, 0 Unchecked, 19.2s Time] [2022-10-15 21:35:23,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6510 states. [2022-10-15 21:35:24,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6510 to 5698. [2022-10-15 21:35:24,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5698 states, 4265 states have (on average 1.4194607268464243) internal successors, (6054), 4441 states have internal predecessors, (6054), 1064 states have call successors, (1064), 311 states have call predecessors, (1064), 311 states have return successors, (1064), 1051 states have call predecessors, (1064), 1064 states have call successors, (1064) [2022-10-15 21:35:24,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5698 states to 5698 states and 8182 transitions. [2022-10-15 21:35:24,455 INFO L78 Accepts]: Start accepts. Automaton has 5698 states and 8182 transitions. Word has length 164 [2022-10-15 21:35:24,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:35:24,457 INFO L495 AbstractCegarLoop]: Abstraction has 5698 states and 8182 transitions. [2022-10-15 21:35:24,458 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 3 states have internal predecessors, (51), 2 states have call successors, (17), 6 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-10-15 21:35:24,458 INFO L276 IsEmpty]: Start isEmpty. Operand 5698 states and 8182 transitions. [2022-10-15 21:35:24,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2022-10-15 21:35:24,464 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:35:24,465 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:35:24,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:35:24,465 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [sl_tx_timeoutErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_tx_timeoutErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_ioctlErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2022-10-15 21:35:24,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:35:24,466 INFO L85 PathProgramCache]: Analyzing trace with hash 1211575709, now seen corresponding path program 1 times [2022-10-15 21:35:24,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:35:24,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6089995] [2022-10-15 21:35:24,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:35:24,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:35:24,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:24,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:35:24,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:24,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:24,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:24,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:24,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:24,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-10-15 21:35:24,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:24,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:24,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:24,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:24,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:24,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-10-15 21:35:24,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:24,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:24,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:24,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:24,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:24,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-10-15 21:35:24,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:24,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-10-15 21:35:24,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:24,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2022-10-15 21:35:24,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:25,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:25,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:25,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:25,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:25,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-10-15 21:35:25,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:25,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:25,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:25,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:25,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:25,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-10-15 21:35:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:25,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-15 21:35:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:25,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-15 21:35:25,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:25,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-15 21:35:25,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:25,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2022-10-15 21:35:25,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:25,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-10-15 21:35:25,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:25,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-10-15 21:35:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:25,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2022-10-15 21:35:25,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:25,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:25,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:25,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-10-15 21:35:25,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:25,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:25,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:25,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:25,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:25,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-10-15 21:35:25,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:25,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-15 21:35:25,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:25,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-10-15 21:35:25,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:35:25,239 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 411 trivial. 0 not checked. [2022-10-15 21:35:25,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:35:25,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6089995] [2022-10-15 21:35:25,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6089995] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:35:25,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:35:25,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-15 21:35:25,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678718918] [2022-10-15 21:35:25,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:35:25,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 21:35:25,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:35:25,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 21:35:25,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-15 21:35:25,243 INFO L87 Difference]: Start difference. First operand 5698 states and 8182 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (20), 5 states have call predecessors, (20), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20)