/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-v0.6/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:05:01,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:05:01,785 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:05:01,819 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 14:05:01,820 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 14:05:01,821 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 14:05:01,823 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 14:05:01,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 14:05:01,842 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 14:05:01,843 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 14:05:01,844 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 14:05:01,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 14:05:01,846 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 14:05:01,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 14:05:01,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 14:05:01,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 14:05:01,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 14:05:01,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 14:05:01,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 14:05:01,856 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 14:05:01,858 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 14:05:01,859 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 14:05:01,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 14:05:01,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 14:05:01,866 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 14:05:01,867 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 14:05:01,867 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 14:05:01,868 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 14:05:01,869 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 14:05:01,870 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 14:05:01,870 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 14:05:01,871 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 14:05:01,872 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 14:05:01,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 14:05:01,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 14:05:01,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 14:05:01,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 14:05:01,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 14:05:01,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:05:01,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:05:01,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:05:01,879 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 14:05:01,912 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:05:01,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:05:01,913 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:05:01,913 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:05:01,914 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:05:01,915 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:05:01,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:05:01,916 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:05:01,916 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:05:01,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:05:01,917 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:05:01,917 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:05:01,917 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:05:01,918 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:05:01,918 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:05:01,918 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:05:01,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:05:01,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:05:01,919 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:05:01,919 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:05:01,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:05:01,920 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:05:01,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:05:01,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:05:01,921 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:05:01,921 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:05:01,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:05:01,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:05:01,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:05:01,922 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:05:01,922 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:05:01,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:05:01,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:05:01,923 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:05:02,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:05:02,332 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:05:02,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:05:02,337 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:05:02,337 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:05:02,339 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i [2022-10-16 14:05:02,424 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/922c60f80/9238ade241a04b58916f58cdb911735a/FLAG5d84aabac [2022-10-16 14:05:03,400 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:05:03,401 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i [2022-10-16 14:05:03,446 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/922c60f80/9238ade241a04b58916f58cdb911735a/FLAG5d84aabac [2022-10-16 14:05:03,851 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/922c60f80/9238ade241a04b58916f58cdb911735a [2022-10-16 14:05:03,854 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:05:03,862 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:05:03,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:05:03,864 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:05:03,868 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:05:03,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:05:03" (1/1) ... [2022-10-16 14:05:03,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64ea8e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:05:03, skipping insertion in model container [2022-10-16 14:05:03,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:05:03" (1/1) ... [2022-10-16 14:05:03,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:05:04,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:05:04,767 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-v0.6/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i[139152,139165] [2022-10-16 14:05:05,642 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:05:05,667 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:05:05,796 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-v0.6/linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i[139152,139165] [2022-10-16 14:05:06,147 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:05:06,295 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:05:06,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:05:06 WrapperNode [2022-10-16 14:05:06,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:05:06,297 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:05:06,298 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:05:06,299 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:05:06,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:05:06" (1/1) ... [2022-10-16 14:05:06,423 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:05:06" (1/1) ... [2022-10-16 14:05:06,592 INFO L138 Inliner]: procedures = 184, calls = 828, calls flagged for inlining = 92, calls inlined = 90, statements flattened = 3275 [2022-10-16 14:05:06,593 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:05:06,594 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:05:06,594 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:05:06,594 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:05:06,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:05:06" (1/1) ... [2022-10-16 14:05:06,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:05:06" (1/1) ... [2022-10-16 14:05:06,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:05:06" (1/1) ... [2022-10-16 14:05:06,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:05:06" (1/1) ... [2022-10-16 14:05:06,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:05:06" (1/1) ... [2022-10-16 14:05:06,730 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:05:06" (1/1) ... [2022-10-16 14:05:06,747 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:05:06" (1/1) ... [2022-10-16 14:05:06,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:05:06" (1/1) ... [2022-10-16 14:05:06,800 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:05:06,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:05:06,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:05:06,801 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:05:06,802 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:05:06" (1/1) ... [2022-10-16 14:05:06,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:05:06,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:05:06,843 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 14:05:06,862 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 14:05:06,905 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2022-10-16 14:05:06,905 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2022-10-16 14:05:06,905 INFO L130 BoogieDeclarations]: Found specification of procedure sl_tx_timeout [2022-10-16 14:05:06,906 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_tx_timeout [2022-10-16 14:05:06,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-16 14:05:06,906 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-10-16 14:05:06,906 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2022-10-16 14:05:06,906 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2022-10-16 14:05:06,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-16 14:05:06,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-16 14:05:06,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-16 14:05:06,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-16 14:05:06,907 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 14:05:06,907 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-10-16 14:05:06,907 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-10-16 14:05:06,907 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-10-16 14:05:06,907 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-10-16 14:05:06,907 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2022-10-16 14:05:06,908 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2022-10-16 14:05:06,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-16 14:05:06,908 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-16 14:05:06,908 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-10-16 14:05:06,908 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-10-16 14:05:06,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 14:05:06,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 14:05:06,909 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-10-16 14:05:06,909 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-10-16 14:05:06,909 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-10-16 14:05:06,909 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-10-16 14:05:06,909 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-16 14:05:06,909 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-16 14:05:06,909 INFO L130 BoogieDeclarations]: Found specification of procedure sl_free_bufs [2022-10-16 14:05:06,910 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_free_bufs [2022-10-16 14:05:06,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 14:05:06,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-16 14:05:06,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-16 14:05:06,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-16 14:05:06,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-16 14:05:06,910 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-10-16 14:05:06,911 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-10-16 14:05:06,911 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-16 14:05:06,911 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-16 14:05:06,911 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-10-16 14:05:06,911 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-10-16 14:05:06,911 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-10-16 14:05:06,911 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-10-16 14:05:06,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 14:05:06,912 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2022-10-16 14:05:06,912 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2022-10-16 14:05:06,912 INFO L130 BoogieDeclarations]: Found specification of procedure sl_bump [2022-10-16 14:05:06,912 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_bump [2022-10-16 14:05:06,912 INFO L130 BoogieDeclarations]: Found specification of procedure slip_ioctl [2022-10-16 14:05:06,912 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_ioctl [2022-10-16 14:05:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:05:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-10-16 14:05:06,913 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-10-16 14:05:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure slip_close [2022-10-16 14:05:06,913 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_close [2022-10-16 14:05:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 14:05:06,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 14:05:06,914 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-10-16 14:05:06,914 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2022-10-16 14:05:06,914 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2022-10-16 14:05:06,914 INFO L130 BoogieDeclarations]: Found specification of procedure slip_compat_ioctl [2022-10-16 14:05:06,914 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_compat_ioctl [2022-10-16 14:05:06,914 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-10-16 14:05:06,914 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-10-16 14:05:06,915 INFO L130 BoogieDeclarations]: Found specification of procedure sl_get_stats64 [2022-10-16 14:05:06,915 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_get_stats64 [2022-10-16 14:05:06,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 14:05:06,915 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-10-16 14:05:06,915 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-10-16 14:05:06,915 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-10-16 14:05:06,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2022-10-16 14:05:06,916 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-10-16 14:05:06,916 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-10-16 14:05:06,916 INFO L130 BoogieDeclarations]: Found specification of procedure sl_ioctl [2022-10-16 14:05:06,916 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_ioctl [2022-10-16 14:05:06,916 INFO L130 BoogieDeclarations]: Found specification of procedure tty_hangup [2022-10-16 14:05:06,916 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_hangup [2022-10-16 14:05:06,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 14:05:06,917 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2022-10-16 14:05:06,917 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2022-10-16 14:05:06,917 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 14:05:06,917 INFO L130 BoogieDeclarations]: Found specification of procedure tty_devnum [2022-10-16 14:05:06,917 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_devnum [2022-10-16 14:05:06,917 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-16 14:05:06,917 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-16 14:05:06,917 INFO L130 BoogieDeclarations]: Found specification of procedure slip_hangup [2022-10-16 14:05:06,918 INFO L138 BoogieDeclarations]: Found implementation of procedure slip_hangup [2022-10-16 14:05:06,918 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-10-16 14:05:06,918 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-10-16 14:05:06,918 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-10-16 14:05:06,918 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-10-16 14:05:06,918 INFO L130 BoogieDeclarations]: Found specification of procedure sl_change_mtu [2022-10-16 14:05:06,918 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_change_mtu [2022-10-16 14:05:06,919 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-10-16 14:05:06,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-10-16 14:05:06,919 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-10-16 14:05:06,919 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-10-16 14:05:06,919 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-10-16 14:05:06,919 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-10-16 14:05:06,919 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-10-16 14:05:06,920 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-10-16 14:05:06,920 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-10-16 14:05:06,920 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-10-16 14:05:06,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:05:06,920 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-10-16 14:05:06,920 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-10-16 14:05:06,920 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2022-10-16 14:05:06,920 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2022-10-16 14:05:06,921 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-10-16 14:05:06,921 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-10-16 14:05:06,921 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-16 14:05:06,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-16 14:05:06,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-16 14:05:06,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:05:06,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:05:06,922 INFO L130 BoogieDeclarations]: Found specification of procedure sl_unlock [2022-10-16 14:05:06,922 INFO L138 BoogieDeclarations]: Found implementation of procedure sl_unlock [2022-10-16 14:05:06,922 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-10-16 14:05:06,922 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-10-16 14:05:07,501 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:05:07,504 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:05:07,717 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-16 14:05:10,293 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:05:10,327 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:05:10,331 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 14:05:10,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:05:10 BoogieIcfgContainer [2022-10-16 14:05:10,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:05:10,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:05:10,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:05:10,347 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:05:10,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:05:03" (1/3) ... [2022-10-16 14:05:10,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c356c31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:05:10, skipping insertion in model container [2022-10-16 14:05:10,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:05:06" (2/3) ... [2022-10-16 14:05:10,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c356c31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:05:10, skipping insertion in model container [2022-10-16 14:05:10,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:05:10" (3/3) ... [2022-10-16 14:05:10,352 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-1b0b0ac-1-108_1a-drivers--net--slip.ko-entry_point.cil.out.i [2022-10-16 14:05:10,373 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:05:10,373 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 80 error locations. [2022-10-16 14:05:10,496 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:05:10,506 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;@602161e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:05:10,506 INFO L358 AbstractCegarLoop]: Starting to check reachability of 80 error locations. [2022-10-16 14:05:10,518 INFO L276 IsEmpty]: Start isEmpty. Operand has 1246 states, 885 states have (on average 1.4847457627118643) internal successors, (1314), 997 states have internal predecessors, (1314), 229 states have call successors, (229), 52 states have call predecessors, (229), 51 states have return successors, (224), 222 states have call predecessors, (224), 224 states have call successors, (224) [2022-10-16 14:05:10,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-10-16 14:05:10,537 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:05:10,538 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:05:10,539 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)] === [2022-10-16 14:05:10,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:05:10,546 INFO L85 PathProgramCache]: Analyzing trace with hash 316918147, now seen corresponding path program 1 times [2022-10-16 14:05:10,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:05:10,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520771607] [2022-10-16 14:05:10,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:05:10,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:05:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:11,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:05:11,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:11,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:05:11,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:11,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:05:11,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:11,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 14:05:11,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:11,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 14:05:11,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:11,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 14:05:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:11,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 14:05:11,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:11,301 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-10-16 14:05:11,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:05:11,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520771607] [2022-10-16 14:05:11,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520771607] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:05:11,303 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:05:11,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:05:11,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245908786] [2022-10-16 14:05:11,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:05:11,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:05:11,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:05:11,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:05:11,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:05:11,351 INFO L87 Difference]: Start difference. First operand has 1246 states, 885 states have (on average 1.4847457627118643) internal successors, (1314), 997 states have internal predecessors, (1314), 229 states have call successors, (229), 52 states have call predecessors, (229), 51 states have return successors, (224), 222 states have call predecessors, (224), 224 states have call successors, (224) Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-16 14:05:16,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:05:17,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:05:17,730 INFO L93 Difference]: Finished difference Result 3778 states and 5544 transitions. [2022-10-16 14:05:17,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:05:17,734 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 58 [2022-10-16 14:05:17,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:05:17,773 INFO L225 Difference]: With dead ends: 3778 [2022-10-16 14:05:17,773 INFO L226 Difference]: Without dead ends: 2509 [2022-10-16 14:05:17,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 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 14:05:17,795 INFO L413 NwaCegarLoop]: 1948 mSDtfsCounter, 2412 mSDsluCounter, 1875 mSDsCounter, 0 mSdLazyCounter, 1416 mSolverCounterSat, 636 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2593 SdHoareTripleChecker+Valid, 3823 SdHoareTripleChecker+Invalid, 2053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 636 IncrementalHoareTripleChecker+Valid, 1416 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2022-10-16 14:05:17,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2593 Valid, 3823 Invalid, 2053 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [636 Valid, 1416 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2022-10-16 14:05:17,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2509 states. [2022-10-16 14:05:18,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2509 to 2275. [2022-10-16 14:05:18,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2275 states, 1692 states have (on average 1.450354609929078) internal successors, (2454), 1798 states have internal predecessors, (2454), 426 states have call successors, (426), 99 states have call predecessors, (426), 99 states have return successors, (426), 422 states have call predecessors, (426), 426 states have call successors, (426) [2022-10-16 14:05:18,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2275 states to 2275 states and 3306 transitions. [2022-10-16 14:05:18,046 INFO L78 Accepts]: Start accepts. Automaton has 2275 states and 3306 transitions. Word has length 58 [2022-10-16 14:05:18,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:05:18,047 INFO L495 AbstractCegarLoop]: Abstraction has 2275 states and 3306 transitions. [2022-10-16 14:05:18,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 1 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-10-16 14:05:18,048 INFO L276 IsEmpty]: Start isEmpty. Operand 2275 states and 3306 transitions. [2022-10-16 14:05:18,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-10-16 14:05:18,053 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:05:18,053 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:05:18,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:05:18,054 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)] === [2022-10-16 14:05:18,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:05:18,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1146928676, now seen corresponding path program 1 times [2022-10-16 14:05:18,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:05:18,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5843077] [2022-10-16 14:05:18,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:05:18,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:05:18,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:18,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:05:18,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:18,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:05:18,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:18,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:05:18,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:18,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 14:05:18,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:18,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 14:05:18,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:18,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 14:05:18,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:18,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 14:05:18,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:18,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-16 14:05:18,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:18,327 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-10-16 14:05:18,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:05:18,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5843077] [2022-10-16 14:05:18,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5843077] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:05:18,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:05:18,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:05:18,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375742605] [2022-10-16 14:05:18,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:05:18,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:05:18,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:05:18,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:05:18,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:05:18,333 INFO L87 Difference]: Start difference. First operand 2275 states and 3306 transitions. Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 14:05:21,793 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:05:23,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:05:23,556 INFO L93 Difference]: Finished difference Result 6506 states and 9490 transitions. [2022-10-16 14:05:23,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:05:23,557 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 62 [2022-10-16 14:05:23,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:05:23,596 INFO L225 Difference]: With dead ends: 6506 [2022-10-16 14:05:23,597 INFO L226 Difference]: Without dead ends: 4248 [2022-10-16 14:05:23,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 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 14:05:23,611 INFO L413 NwaCegarLoop]: 2013 mSDtfsCounter, 1981 mSDsluCounter, 1831 mSDsCounter, 0 mSdLazyCounter, 1434 mSolverCounterSat, 505 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2137 SdHoareTripleChecker+Valid, 3844 SdHoareTripleChecker+Invalid, 1940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 505 IncrementalHoareTripleChecker+Valid, 1434 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2022-10-16 14:05:23,612 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2137 Valid, 3844 Invalid, 1940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [505 Valid, 1434 Invalid, 1 Unknown, 0 Unchecked, 4.8s Time] [2022-10-16 14:05:23,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4248 states. [2022-10-16 14:05:23,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4248 to 3950. [2022-10-16 14:05:23,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3950 states, 2982 states have (on average 1.4446680080482897) internal successors, (4308), 3130 states have internal predecessors, (4308), 724 states have call successors, (724), 186 states have call predecessors, (724), 186 states have return successors, (724), 715 states have call predecessors, (724), 724 states have call successors, (724) [2022-10-16 14:05:23,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3950 states to 3950 states and 5756 transitions. [2022-10-16 14:05:23,877 INFO L78 Accepts]: Start accepts. Automaton has 3950 states and 5756 transitions. Word has length 62 [2022-10-16 14:05:23,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:05:23,878 INFO L495 AbstractCegarLoop]: Abstraction has 3950 states and 5756 transitions. [2022-10-16 14:05:23,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 14:05:23,878 INFO L276 IsEmpty]: Start isEmpty. Operand 3950 states and 5756 transitions. [2022-10-16 14:05:23,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2022-10-16 14:05:23,881 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:05:23,882 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:05:23,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:05:23,882 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)] === [2022-10-16 14:05:23,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:05:23,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1614752689, now seen corresponding path program 1 times [2022-10-16 14:05:23,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:05:23,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708148064] [2022-10-16 14:05:23,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:05:23,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:05:23,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:24,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:05:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:24,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:05:24,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:24,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:05:24,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:24,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 14:05:24,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:24,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 14:05:24,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:24,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 14:05:24,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:24,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 14:05:24,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:24,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 14:05:24,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:24,090 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-10-16 14:05:24,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:05:24,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708148064] [2022-10-16 14:05:24,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708148064] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:05:24,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:05:24,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:05:24,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144993074] [2022-10-16 14:05:24,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:05:24,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:05:24,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:05:24,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:05:24,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:05:24,096 INFO L87 Difference]: Start difference. First operand 3950 states and 5756 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 14:05:28,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:05:29,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:05:30,968 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:05:33,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:05:36,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:05:36,499 INFO L93 Difference]: Finished difference Result 10313 states and 14977 transitions. [2022-10-16 14:05:36,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 14:05:36,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 65 [2022-10-16 14:05:36,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:05:36,543 INFO L225 Difference]: With dead ends: 10313 [2022-10-16 14:05:36,543 INFO L226 Difference]: Without dead ends: 6380 [2022-10-16 14:05:36,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:05:36,560 INFO L413 NwaCegarLoop]: 2122 mSDtfsCounter, 2178 mSDsluCounter, 2301 mSDsCounter, 0 mSdLazyCounter, 2364 mSolverCounterSat, 980 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2277 SdHoareTripleChecker+Valid, 4423 SdHoareTripleChecker+Invalid, 3345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 980 IncrementalHoareTripleChecker+Valid, 2364 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2022-10-16 14:05:36,561 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2277 Valid, 4423 Invalid, 3345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [980 Valid, 2364 Invalid, 1 Unknown, 0 Unchecked, 11.8s Time] [2022-10-16 14:05:36,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6380 states. [2022-10-16 14:05:36,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6380 to 5664. [2022-10-16 14:05:36,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5664 states, 4247 states have (on average 1.4214739816340947) internal successors, (6037), 4423 states have internal predecessors, (6037), 1053 states have call successors, (1053), 306 states have call predecessors, (1053), 306 states have return successors, (1053), 1040 states have call predecessors, (1053), 1053 states have call successors, (1053) [2022-10-16 14:05:36,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5664 states to 5664 states and 8143 transitions. [2022-10-16 14:05:36,898 INFO L78 Accepts]: Start accepts. Automaton has 5664 states and 8143 transitions. Word has length 65 [2022-10-16 14:05:36,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:05:36,899 INFO L495 AbstractCegarLoop]: Abstraction has 5664 states and 8143 transitions. [2022-10-16 14:05:36,899 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-10-16 14:05:36,900 INFO L276 IsEmpty]: Start isEmpty. Operand 5664 states and 8143 transitions. [2022-10-16 14:05:36,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-10-16 14:05:36,903 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:05:36,904 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2022-10-16 14:05:36,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 14:05:36,904 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)] === [2022-10-16 14:05:36,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:05:36,905 INFO L85 PathProgramCache]: Analyzing trace with hash 188140420, now seen corresponding path program 1 times [2022-10-16 14:05:36,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:05:36,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583557199] [2022-10-16 14:05:36,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:05:36,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:05:36,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:37,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:05:37,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:37,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:05:37,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:37,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:05:37,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:37,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 14:05:37,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:37,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 14:05:37,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:37,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 14:05:37,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:37,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 14:05:37,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:37,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 14:05:37,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:37,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:05:37,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:37,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-16 14:05:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:37,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-16 14:05:37,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:37,213 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-10-16 14:05:37,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:05:37,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583557199] [2022-10-16 14:05:37,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583557199] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:05:37,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:05:37,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:05:37,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775711873] [2022-10-16 14:05:37,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:05:37,217 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:05:37,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:05:37,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:05:37,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:05:37,218 INFO L87 Difference]: Start difference. First operand 5664 states and 8143 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-16 14:05:40,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:05:40,499 INFO L93 Difference]: Finished difference Result 11844 states and 17149 transitions. [2022-10-16 14:05:40,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:05:40,501 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 99 [2022-10-16 14:05:40,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:05:40,545 INFO L225 Difference]: With dead ends: 11844 [2022-10-16 14:05:40,546 INFO L226 Difference]: Without dead ends: 6208 [2022-10-16 14:05:40,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:05:40,570 INFO L413 NwaCegarLoop]: 1643 mSDtfsCounter, 2029 mSDsluCounter, 1331 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 559 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2168 SdHoareTripleChecker+Valid, 2974 SdHoareTripleChecker+Invalid, 1370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 559 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-10-16 14:05:40,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2168 Valid, 2974 Invalid, 1370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [559 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-10-16 14:05:40,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6208 states. [2022-10-16 14:05:40,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6208 to 5664. [2022-10-16 14:05:40,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5664 states, 4247 states have (on average 1.4205321403343536) internal successors, (6033), 4423 states have internal predecessors, (6033), 1053 states have call successors, (1053), 306 states have call predecessors, (1053), 306 states have return successors, (1053), 1040 states have call predecessors, (1053), 1053 states have call successors, (1053) [2022-10-16 14:05:40,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5664 states to 5664 states and 8139 transitions. [2022-10-16 14:05:40,969 INFO L78 Accepts]: Start accepts. Automaton has 5664 states and 8139 transitions. Word has length 99 [2022-10-16 14:05:40,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:05:40,974 INFO L495 AbstractCegarLoop]: Abstraction has 5664 states and 8139 transitions. [2022-10-16 14:05:40,984 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-10-16 14:05:40,987 INFO L276 IsEmpty]: Start isEmpty. Operand 5664 states and 8139 transitions. [2022-10-16 14:05:40,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-10-16 14:05:40,993 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:05:40,993 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2022-10-16 14:05:40,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 14:05:40,994 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [sl_tx_timeoutErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_tx_timeoutErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_ioctlErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2022-10-16 14:05:40,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:05:40,994 INFO L85 PathProgramCache]: Analyzing trace with hash 2116413122, now seen corresponding path program 1 times [2022-10-16 14:05:40,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:05:40,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901020615] [2022-10-16 14:05:40,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:05:40,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:05:41,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:41,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:05:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:41,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:05:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:41,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:05:41,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:41,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 14:05:41,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:41,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 14:05:41,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:41,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 14:05:41,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:41,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 14:05:41,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:41,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 14:05:41,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:41,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:05:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:41,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-10-16 14:05:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:41,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-10-16 14:05:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:41,318 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-10-16 14:05:41,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:05:41,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901020615] [2022-10-16 14:05:41,319 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901020615] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:05:41,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:05:41,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 14:05:41,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [340767790] [2022-10-16 14:05:41,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:05:41,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:05:41,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:05:41,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:05:41,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:05:41,325 INFO L87 Difference]: Start difference. First operand 5664 states and 8139 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 14:05:43,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:05:48,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:05:48,644 INFO L93 Difference]: Finished difference Result 11852 states and 17149 transitions. [2022-10-16 14:05:48,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:05:48,646 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 99 [2022-10-16 14:05:48,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:05:48,691 INFO L225 Difference]: With dead ends: 11852 [2022-10-16 14:05:48,691 INFO L226 Difference]: Without dead ends: 6208 [2022-10-16 14:05:48,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:05:48,714 INFO L413 NwaCegarLoop]: 1658 mSDtfsCounter, 593 mSDsluCounter, 3454 mSDsCounter, 0 mSdLazyCounter, 2291 mSolverCounterSat, 262 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 5112 SdHoareTripleChecker+Invalid, 2554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 2291 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-10-16 14:05:48,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [680 Valid, 5112 Invalid, 2554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [262 Valid, 2291 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-10-16 14:05:48,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6208 states. [2022-10-16 14:05:49,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6208 to 5664. [2022-10-16 14:05:49,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5664 states, 4247 states have (on average 1.4195902990346128) internal successors, (6029), 4423 states have internal predecessors, (6029), 1053 states have call successors, (1053), 306 states have call predecessors, (1053), 306 states have return successors, (1053), 1040 states have call predecessors, (1053), 1053 states have call successors, (1053) [2022-10-16 14:05:49,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5664 states to 5664 states and 8135 transitions. [2022-10-16 14:05:49,129 INFO L78 Accepts]: Start accepts. Automaton has 5664 states and 8135 transitions. Word has length 99 [2022-10-16 14:05:49,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:05:49,129 INFO L495 AbstractCegarLoop]: Abstraction has 5664 states and 8135 transitions. [2022-10-16 14:05:49,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 14:05:49,130 INFO L276 IsEmpty]: Start isEmpty. Operand 5664 states and 8135 transitions. [2022-10-16 14:05:49,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2022-10-16 14:05:49,140 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:05:49,140 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2022-10-16 14:05:49,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 14:05:49,141 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [sl_tx_timeoutErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_tx_timeoutErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_ioctlErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2022-10-16 14:05:49,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:05:49,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1852527700, now seen corresponding path program 1 times [2022-10-16 14:05:49,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:05:49,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775791701] [2022-10-16 14:05:49,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:05:49,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:05:49,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:49,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:05:49,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:49,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:05:49,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:49,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:05:49,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:49,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 14:05:49,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:49,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 14:05:49,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:49,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 14:05:49,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:49,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 14:05:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:49,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 14:05:49,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:49,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:05:49,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:49,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 14:05:49,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:49,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:05:49,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:49,599 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-10-16 14:05:49,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:05:49,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775791701] [2022-10-16 14:05:49,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [775791701] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:05:49,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:05:49,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 14:05:49,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609577143] [2022-10-16 14:05:49,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:05:49,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:05:49,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:05:49,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:05:49,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:05:49,602 INFO L87 Difference]: Start difference. First operand 5664 states and 8135 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 14:05:52,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:05:54,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:05:54,378 INFO L93 Difference]: Finished difference Result 6506 states and 9457 transitions. [2022-10-16 14:05:54,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:05:54,380 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 102 [2022-10-16 14:05:54,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:05:54,416 INFO L225 Difference]: With dead ends: 6506 [2022-10-16 14:05:54,417 INFO L226 Difference]: Without dead ends: 6306 [2022-10-16 14:05:54,421 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:05:54,422 INFO L413 NwaCegarLoop]: 1637 mSDtfsCounter, 2511 mSDsluCounter, 1557 mSDsCounter, 0 mSdLazyCounter, 1510 mSolverCounterSat, 856 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2650 SdHoareTripleChecker+Valid, 3194 SdHoareTripleChecker+Invalid, 2367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 856 IncrementalHoareTripleChecker+Valid, 1510 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-10-16 14:05:54,422 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2650 Valid, 3194 Invalid, 2367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [856 Valid, 1510 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-10-16 14:05:54,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6306 states. [2022-10-16 14:05:54,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6306 to 5760. [2022-10-16 14:05:54,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5760 states, 4319 states have (on average 1.4181523500810373) internal successors, (6125), 4503 states have internal predecessors, (6125), 1077 states have call successors, (1077), 306 states have call predecessors, (1077), 306 states have return successors, (1077), 1064 states have call predecessors, (1077), 1077 states have call successors, (1077) [2022-10-16 14:05:54,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5760 states to 5760 states and 8279 transitions. [2022-10-16 14:05:54,763 INFO L78 Accepts]: Start accepts. Automaton has 5760 states and 8279 transitions. Word has length 102 [2022-10-16 14:05:54,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:05:54,765 INFO L495 AbstractCegarLoop]: Abstraction has 5760 states and 8279 transitions. [2022-10-16 14:05:54,765 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 14:05:54,766 INFO L276 IsEmpty]: Start isEmpty. Operand 5760 states and 8279 transitions. [2022-10-16 14:05:54,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-10-16 14:05:54,770 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:05:54,770 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2022-10-16 14:05:54,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 14:05:54,771 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting sl_change_mtuErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [sl_tx_timeoutErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_tx_timeoutErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_ioctlErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2022-10-16 14:05:54,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:05:54,772 INFO L85 PathProgramCache]: Analyzing trace with hash 76764540, now seen corresponding path program 1 times [2022-10-16 14:05:54,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:05:54,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497502963] [2022-10-16 14:05:54,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:05:54,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:05:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:54,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:05:54,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:54,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:05:54,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:54,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:05:54,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:54,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 14:05:54,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:54,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 14:05:54,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:54,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 14:05:54,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:54,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 14:05:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:54,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 14:05:54,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:54,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:05:54,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:54,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 14:05:54,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:55,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:05:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:55,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 14:05:55,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:05:55,023 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-10-16 14:05:55,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:05:55,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497502963] [2022-10-16 14:05:55,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497502963] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:05:55,024 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:05:55,024 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:05:55,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80153325] [2022-10-16 14:05:55,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:05:55,025 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:05:55,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:05:55,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:05:55,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:05:55,026 INFO L87 Difference]: Start difference. First operand 5760 states and 8279 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-10-16 14:05:57,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:06:00,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:06:02,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:06:02,934 INFO L93 Difference]: Finished difference Result 14750 states and 21290 transitions. [2022-10-16 14:06:02,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:06:02,935 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 107 [2022-10-16 14:06:02,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:06:02,984 INFO L225 Difference]: With dead ends: 14750 [2022-10-16 14:06:02,985 INFO L226 Difference]: Without dead ends: 9018 [2022-10-16 14:06:03,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:06:03,006 INFO L413 NwaCegarLoop]: 2144 mSDtfsCounter, 2098 mSDsluCounter, 2687 mSDsCounter, 0 mSdLazyCounter, 2059 mSolverCounterSat, 670 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2279 SdHoareTripleChecker+Valid, 4831 SdHoareTripleChecker+Invalid, 2731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 670 IncrementalHoareTripleChecker+Valid, 2059 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-10-16 14:06:03,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2279 Valid, 4831 Invalid, 2731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [670 Valid, 2059 Invalid, 2 Unknown, 0 Unchecked, 7.4s Time] [2022-10-16 14:06:03,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9018 states. [2022-10-16 14:06:03,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9018 to 8264. [2022-10-16 14:06:03,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8264 states, 6233 states have (on average 1.409754532327932) internal successors, (8787), 6478 states have internal predecessors, (8787), 1523 states have call successors, (1523), 454 states have call predecessors, (1523), 450 states have return successors, (1523), 1499 states have call predecessors, (1523), 1523 states have call successors, (1523) [2022-10-16 14:06:03,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8264 states to 8264 states and 11833 transitions. [2022-10-16 14:06:03,497 INFO L78 Accepts]: Start accepts. Automaton has 8264 states and 11833 transitions. Word has length 107 [2022-10-16 14:06:03,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:06:03,497 INFO L495 AbstractCegarLoop]: Abstraction has 8264 states and 11833 transitions. [2022-10-16 14:06:03,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (13), 4 states have call predecessors, (13), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-10-16 14:06:03,498 INFO L276 IsEmpty]: Start isEmpty. Operand 8264 states and 11833 transitions. [2022-10-16 14:06:03,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2022-10-16 14:06:03,501 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:06:03,501 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2022-10-16 14:06:03,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 14:06:03,501 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [sl_tx_timeoutErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_tx_timeoutErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_ioctlErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2022-10-16 14:06:03,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:06:03,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1740710839, now seen corresponding path program 1 times [2022-10-16 14:06:03,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:06:03,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744325207] [2022-10-16 14:06:03,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:06:03,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:06:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:03,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:06:03,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:03,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:06:03,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:03,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:06:03,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:03,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 14:06:03,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:03,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 14:06:03,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:03,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 14:06:03,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:03,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 14:06:03,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:03,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 14:06:03,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:03,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:06:03,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:03,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 14:06:03,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:03,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:06:03,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:03,758 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-10-16 14:06:03,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:06:03,758 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744325207] [2022-10-16 14:06:03,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744325207] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:06:03,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:06:03,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 14:06:03,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864960993] [2022-10-16 14:06:03,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:06:03,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:06:03,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:06:03,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:06:03,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:06:03,760 INFO L87 Difference]: Start difference. First operand 8264 states and 11833 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 14:06:08,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:06:10,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:06:10,897 INFO L93 Difference]: Finished difference Result 9646 states and 13950 transitions. [2022-10-16 14:06:10,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:06:10,897 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 107 [2022-10-16 14:06:10,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:06:10,942 INFO L225 Difference]: With dead ends: 9646 [2022-10-16 14:06:10,942 INFO L226 Difference]: Without dead ends: 9206 [2022-10-16 14:06:10,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:06:10,950 INFO L413 NwaCegarLoop]: 1657 mSDtfsCounter, 615 mSDsluCounter, 3426 mSDsCounter, 0 mSdLazyCounter, 2331 mSolverCounterSat, 276 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 5083 SdHoareTripleChecker+Invalid, 2608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 2331 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2022-10-16 14:06:10,950 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 5083 Invalid, 2608 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 2331 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2022-10-16 14:06:10,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9206 states. [2022-10-16 14:06:11,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9206 to 8378. [2022-10-16 14:06:11,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8378 states, 6323 states have (on average 1.4067689387948759) internal successors, (8895), 6574 states have internal predecessors, (8895), 1547 states have call successors, (1547), 454 states have call predecessors, (1547), 450 states have return successors, (1547), 1523 states have call predecessors, (1547), 1547 states have call successors, (1547) [2022-10-16 14:06:11,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8378 states to 8378 states and 11989 transitions. [2022-10-16 14:06:11,533 INFO L78 Accepts]: Start accepts. Automaton has 8378 states and 11989 transitions. Word has length 107 [2022-10-16 14:06:11,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:06:11,534 INFO L495 AbstractCegarLoop]: Abstraction has 8378 states and 11989 transitions. [2022-10-16 14:06:11,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 1 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 14:06:11,534 INFO L276 IsEmpty]: Start isEmpty. Operand 8378 states and 11989 transitions. [2022-10-16 14:06:11,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-10-16 14:06:11,537 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:06:11,537 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2022-10-16 14:06:11,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 14:06:11,538 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [sl_tx_timeoutErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_tx_timeoutErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_ioctlErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2022-10-16 14:06:11,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:06:11,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1084248994, now seen corresponding path program 1 times [2022-10-16 14:06:11,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:06:11,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631234867] [2022-10-16 14:06:11,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:06:11,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:06:11,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:11,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:06:11,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:11,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:06:11,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:11,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:06:11,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:11,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 14:06:11,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:11,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 14:06:11,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:11,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 14:06:11,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:11,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 14:06:11,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:11,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 14:06:11,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:11,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:06:11,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:11,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 14:06:11,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:11,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:06:11,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:11,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-10-16 14:06:11,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:11,804 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2022-10-16 14:06:11,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:06:11,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631234867] [2022-10-16 14:06:11,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631234867] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:06:11,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:06:11,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 14:06:11,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049416220] [2022-10-16 14:06:11,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:06:11,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:06:11,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:06:11,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:06:11,808 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:06:11,808 INFO L87 Difference]: Start difference. First operand 8378 states and 11989 transitions. Second operand has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-10-16 14:06:19,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:06:19,898 INFO L93 Difference]: Finished difference Result 22026 states and 31621 transitions. [2022-10-16 14:06:19,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 14:06:19,899 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 109 [2022-10-16 14:06:19,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:06:19,957 INFO L225 Difference]: With dead ends: 22026 [2022-10-16 14:06:19,957 INFO L226 Difference]: Without dead ends: 13676 [2022-10-16 14:06:19,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:06:19,986 INFO L413 NwaCegarLoop]: 1938 mSDtfsCounter, 3899 mSDsluCounter, 1867 mSDsCounter, 0 mSdLazyCounter, 2596 mSolverCounterSat, 1797 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4070 SdHoareTripleChecker+Valid, 3805 SdHoareTripleChecker+Invalid, 4393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1797 IncrementalHoareTripleChecker+Valid, 2596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:06:19,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4070 Valid, 3805 Invalid, 4393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1797 Valid, 2596 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2022-10-16 14:06:19,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13676 states. [2022-10-16 14:06:20,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13676 to 12120. [2022-10-16 14:06:20,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12120 states, 9187 states have (on average 1.3975182322847501) internal successors, (12839), 9500 states have internal predecessors, (12839), 2207 states have call successors, (2207), 674 states have call predecessors, (2207), 668 states have return successors, (2207), 2175 states have call predecessors, (2207), 2207 states have call successors, (2207) [2022-10-16 14:06:20,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12120 states to 12120 states and 17253 transitions. [2022-10-16 14:06:20,907 INFO L78 Accepts]: Start accepts. Automaton has 12120 states and 17253 transitions. Word has length 109 [2022-10-16 14:06:20,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:06:20,907 INFO L495 AbstractCegarLoop]: Abstraction has 12120 states and 17253 transitions. [2022-10-16 14:06:20,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.166666666666666) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-10-16 14:06:20,908 INFO L276 IsEmpty]: Start isEmpty. Operand 12120 states and 17253 transitions. [2022-10-16 14:06:20,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-10-16 14:06:20,911 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:06:20,911 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:06:20,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 14:06:20,911 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [sl_tx_timeoutErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_tx_timeoutErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_ioctlErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2022-10-16 14:06:20,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:06:20,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1872445004, now seen corresponding path program 1 times [2022-10-16 14:06:20,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:06:20,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136562919] [2022-10-16 14:06:20,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:06:20,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:06:20,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:21,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:06:21,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:21,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:06:21,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:21,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:06:21,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:21,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 14:06:21,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:21,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 14:06:21,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:21,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 14:06:21,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:21,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 14:06:21,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:21,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 14:06:21,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:21,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:06:21,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:21,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 14:06:21,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:21,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:06:21,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:21,183 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-10-16 14:06:21,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:06:21,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136562919] [2022-10-16 14:06:21,184 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136562919] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:06:21,184 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [286375804] [2022-10-16 14:06:21,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:06:21,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:06:21,184 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:06:21,187 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 14:06:21,215 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 14:06:21,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:21,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 936 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:06:21,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:06:21,654 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-10-16 14:06:21,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:06:21,732 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-10-16 14:06:21,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [286375804] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:06:21,733 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:06:21,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 8 [2022-10-16 14:06:21,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371567589] [2022-10-16 14:06:21,733 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:06:21,735 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 14:06:21,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:06:21,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 14:06:21,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:06:21,736 INFO L87 Difference]: Start difference. First operand 12120 states and 17253 transitions. Second operand has 9 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 1 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 14:06:27,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:06:27,454 INFO L93 Difference]: Finished difference Result 14377 states and 20849 transitions. [2022-10-16 14:06:27,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 14:06:27,455 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 1 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 108 [2022-10-16 14:06:27,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:06:27,522 INFO L225 Difference]: With dead ends: 14377 [2022-10-16 14:06:27,523 INFO L226 Difference]: Without dead ends: 14375 [2022-10-16 14:06:27,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:06:27,533 INFO L413 NwaCegarLoop]: 1676 mSDtfsCounter, 1228 mSDsluCounter, 3882 mSDsCounter, 0 mSdLazyCounter, 2881 mSolverCounterSat, 605 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1339 SdHoareTripleChecker+Valid, 5558 SdHoareTripleChecker+Invalid, 3486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 605 IncrementalHoareTripleChecker+Valid, 2881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:06:27,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1339 Valid, 5558 Invalid, 3486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [605 Valid, 2881 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2022-10-16 14:06:27,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14375 states. [2022-10-16 14:06:28,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14375 to 13092. [2022-10-16 14:06:28,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13092 states, 9916 states have (on average 1.4009681323114158) internal successors, (13892), 10310 states have internal predecessors, (13892), 2450 states have call successors, (2450), 674 states have call predecessors, (2450), 668 states have return successors, (2450), 2418 states have call predecessors, (2450), 2450 states have call successors, (2450) [2022-10-16 14:06:28,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13092 states to 13092 states and 18792 transitions. [2022-10-16 14:06:28,372 INFO L78 Accepts]: Start accepts. Automaton has 13092 states and 18792 transitions. Word has length 108 [2022-10-16 14:06:28,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:06:28,372 INFO L495 AbstractCegarLoop]: Abstraction has 13092 states and 18792 transitions. [2022-10-16 14:06:28,372 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 9.5) internal successors, (76), 7 states have internal predecessors, (76), 1 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 14:06:28,372 INFO L276 IsEmpty]: Start isEmpty. Operand 13092 states and 18792 transitions. [2022-10-16 14:06:28,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-10-16 14:06:28,375 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:06:28,376 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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] [2022-10-16 14:06:28,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 14:06:28,589 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 14:06:28,589 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [sl_tx_timeoutErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_tx_timeoutErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_ioctlErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2022-10-16 14:06:28,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:06:28,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1236727250, now seen corresponding path program 1 times [2022-10-16 14:06:28,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:06:28,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488028492] [2022-10-16 14:06:28,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:06:28,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:06:28,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:28,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:06:28,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:28,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:06:28,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:28,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:06:28,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:28,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 14:06:28,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:28,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 14:06:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:28,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 14:06:28,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:28,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 14:06:28,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:28,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 14:06:28,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:28,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:06:28,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:28,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 14:06:28,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:28,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:06:28,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:28,924 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-10-16 14:06:28,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:06:28,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488028492] [2022-10-16 14:06:28,924 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488028492] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:06:28,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:06:28,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:06:28,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200410707] [2022-10-16 14:06:28,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:06:28,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:06:28,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:06:28,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:06:28,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:06:28,928 INFO L87 Difference]: Start difference. First operand 13092 states and 18792 transitions. Second operand has 5 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 14:06:32,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:06:35,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:06:37,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:06:37,154 INFO L93 Difference]: Finished difference Result 16153 states and 23104 transitions. [2022-10-16 14:06:37,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:06:37,154 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2022-10-16 14:06:37,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:06:37,228 INFO L225 Difference]: With dead ends: 16153 [2022-10-16 14:06:37,228 INFO L226 Difference]: Without dead ends: 16149 [2022-10-16 14:06:37,238 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:06:37,239 INFO L413 NwaCegarLoop]: 1979 mSDtfsCounter, 2702 mSDsluCounter, 1811 mSDsCounter, 0 mSdLazyCounter, 1517 mSolverCounterSat, 1042 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2854 SdHoareTripleChecker+Valid, 3790 SdHoareTripleChecker+Invalid, 2560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1042 IncrementalHoareTripleChecker+Valid, 1517 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-10-16 14:06:37,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2854 Valid, 3790 Invalid, 2560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1042 Valid, 1517 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-10-16 14:06:37,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16149 states. [2022-10-16 14:06:38,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16149 to 13611. [2022-10-16 14:06:38,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13611 states, 10311 states have (on average 1.3909417127339734) internal successors, (14342), 10637 states have internal predecessors, (14342), 2460 states have call successors, (2460), 788 states have call predecessors, (2460), 782 states have return successors, (2460), 2424 states have call predecessors, (2460), 2460 states have call successors, (2460) [2022-10-16 14:06:38,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13611 states to 13611 states and 19262 transitions. [2022-10-16 14:06:38,262 INFO L78 Accepts]: Start accepts. Automaton has 13611 states and 19262 transitions. Word has length 109 [2022-10-16 14:06:38,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:06:38,262 INFO L495 AbstractCegarLoop]: Abstraction has 13611 states and 19262 transitions. [2022-10-16 14:06:38,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-10-16 14:06:38,262 INFO L276 IsEmpty]: Start isEmpty. Operand 13611 states and 19262 transitions. [2022-10-16 14:06:38,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2022-10-16 14:06:38,266 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:06:38,266 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:06:38,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 14:06:38,266 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [sl_tx_timeoutErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_tx_timeoutErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_ioctlErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2022-10-16 14:06:38,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:06:38,267 INFO L85 PathProgramCache]: Analyzing trace with hash -2083745590, now seen corresponding path program 1 times [2022-10-16 14:06:38,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:06:38,267 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707988397] [2022-10-16 14:06:38,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:06:38,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:06:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:38,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:06:38,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:38,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:06:38,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:38,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:06:38,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:38,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 14:06:38,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:38,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 14:06:38,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:38,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 14:06:38,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:38,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 14:06:38,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:38,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 14:06:38,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:38,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:06:38,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:38,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 14:06:38,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:38,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:06:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:38,513 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-10-16 14:06:38,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:06:38,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707988397] [2022-10-16 14:06:38,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707988397] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:06:38,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119966042] [2022-10-16 14:06:38,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:06:38,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:06:38,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:06:38,517 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:06:38,537 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 14:06:38,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:38,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 937 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:06:38,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:06:38,956 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-10-16 14:06:38,956 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:06:38,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [119966042] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:06:38,957 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:06:38,957 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-10-16 14:06:38,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968136134] [2022-10-16 14:06:38,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:06:38,958 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:06:38,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:06:38,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:06:38,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:06:38,961 INFO L87 Difference]: Start difference. First operand 13611 states and 19262 transitions. Second operand has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 14:06:39,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:06:39,730 INFO L93 Difference]: Finished difference Result 13613 states and 19264 transitions. [2022-10-16 14:06:39,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:06:39,730 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 109 [2022-10-16 14:06:39,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:06:39,795 INFO L225 Difference]: With dead ends: 13613 [2022-10-16 14:06:39,795 INFO L226 Difference]: Without dead ends: 13611 [2022-10-16 14:06:39,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:06:39,805 INFO L413 NwaCegarLoop]: 1718 mSDtfsCounter, 47 mSDsluCounter, 3347 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 5065 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:06:39,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 5065 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:06:39,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13611 states. [2022-10-16 14:06:40,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13611 to 13609. [2022-10-16 14:06:40,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13609 states, 10311 states have (on average 1.3891960042672873) internal successors, (14324), 10635 states have internal predecessors, (14324), 2460 states have call successors, (2460), 788 states have call predecessors, (2460), 782 states have return successors, (2460), 2424 states have call predecessors, (2460), 2460 states have call successors, (2460) [2022-10-16 14:06:40,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13609 states to 13609 states and 19244 transitions. [2022-10-16 14:06:40,743 INFO L78 Accepts]: Start accepts. Automaton has 13609 states and 19244 transitions. Word has length 109 [2022-10-16 14:06:40,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:06:40,744 INFO L495 AbstractCegarLoop]: Abstraction has 13609 states and 19244 transitions. [2022-10-16 14:06:40,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 1 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-10-16 14:06:40,744 INFO L276 IsEmpty]: Start isEmpty. Operand 13609 states and 19244 transitions. [2022-10-16 14:06:40,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-10-16 14:06:40,748 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:06:40,748 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:06:40,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 14:06:40,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-16 14:06:40,962 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [sl_tx_timeoutErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_tx_timeoutErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_ioctlErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2022-10-16 14:06:40,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:06:40,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1867382988, now seen corresponding path program 1 times [2022-10-16 14:06:40,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:06:40,963 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788859189] [2022-10-16 14:06:40,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:06:40,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:06:41,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:41,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:06:41,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:41,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:06:41,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:41,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:06:41,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:41,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 14:06:41,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:41,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 14:06:41,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:41,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 14:06:41,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:41,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 14:06:41,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:41,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 14:06:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:41,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:06:41,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:41,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 14:06:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:41,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:06:41,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:41,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 14:06:41,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:41,305 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-10-16 14:06:41,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:06:41,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788859189] [2022-10-16 14:06:41,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788859189] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:06:41,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:06:41,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:06:41,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864752041] [2022-10-16 14:06:41,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:06:41,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:06:41,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:06:41,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:06:41,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:06:41,308 INFO L87 Difference]: Start difference. First operand 13609 states and 19244 transitions. Second operand has 5 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 14:06:44,277 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:06:47,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:06:47,841 INFO L93 Difference]: Finished difference Result 19011 states and 27941 transitions. [2022-10-16 14:06:47,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:06:47,842 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 116 [2022-10-16 14:06:47,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:06:47,922 INFO L225 Difference]: With dead ends: 19011 [2022-10-16 14:06:47,923 INFO L226 Difference]: Without dead ends: 19009 [2022-10-16 14:06:47,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:06:47,933 INFO L413 NwaCegarLoop]: 2112 mSDtfsCounter, 1664 mSDsluCounter, 2128 mSDsCounter, 0 mSdLazyCounter, 1365 mSolverCounterSat, 663 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1887 SdHoareTripleChecker+Valid, 4240 SdHoareTripleChecker+Invalid, 2028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 663 IncrementalHoareTripleChecker+Valid, 1365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-10-16 14:06:47,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1887 Valid, 4240 Invalid, 2028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [663 Valid, 1365 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2022-10-16 14:06:47,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19009 states. [2022-10-16 14:06:48,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19009 to 13697. [2022-10-16 14:06:48,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13697 states, 10391 states have (on average 1.390049080935425) internal successors, (14444), 10715 states have internal predecessors, (14444), 2468 states have call successors, (2468), 788 states have call predecessors, (2468), 782 states have return successors, (2468), 2432 states have call predecessors, (2468), 2468 states have call successors, (2468) [2022-10-16 14:06:48,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13697 states to 13697 states and 19380 transitions. [2022-10-16 14:06:48,992 INFO L78 Accepts]: Start accepts. Automaton has 13697 states and 19380 transitions. Word has length 116 [2022-10-16 14:06:48,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:06:48,994 INFO L495 AbstractCegarLoop]: Abstraction has 13697 states and 19380 transitions. [2022-10-16 14:06:48,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 14:06:48,994 INFO L276 IsEmpty]: Start isEmpty. Operand 13697 states and 19380 transitions. [2022-10-16 14:06:49,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2022-10-16 14:06:49,005 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:06:49,005 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:06:49,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 14:06:49,006 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [sl_tx_timeoutErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_tx_timeoutErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_ioctlErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2022-10-16 14:06:49,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:06:49,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1134103120, now seen corresponding path program 1 times [2022-10-16 14:06:49,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:06:49,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760455762] [2022-10-16 14:06:49,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:06:49,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:06:49,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:49,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:06:49,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:49,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:06:49,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:49,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:06:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:49,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 14:06:49,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:49,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 14:06:49,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:49,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 14:06:49,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:49,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 14:06:49,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:49,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 14:06:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:49,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:06:49,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:49,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 14:06:49,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:49,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:06:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:49,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-16 14:06:49,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:49,376 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-10-16 14:06:49,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:06:49,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760455762] [2022-10-16 14:06:49,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760455762] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:06:49,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:06:49,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 14:06:49,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526104248] [2022-10-16 14:06:49,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:06:49,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:06:49,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:06:49,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:06:49,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:06:49,381 INFO L87 Difference]: Start difference. First operand 13697 states and 19380 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-10-16 14:06:54,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:06:54,672 INFO L93 Difference]: Finished difference Result 32412 states and 46935 transitions. [2022-10-16 14:06:54,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:06:54,672 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 119 [2022-10-16 14:06:54,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:06:54,732 INFO L225 Difference]: With dead ends: 32412 [2022-10-16 14:06:54,732 INFO L226 Difference]: Without dead ends: 19009 [2022-10-16 14:06:54,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:06:54,769 INFO L413 NwaCegarLoop]: 1952 mSDtfsCounter, 3402 mSDsluCounter, 1836 mSDsCounter, 0 mSdLazyCounter, 1751 mSolverCounterSat, 1144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3675 SdHoareTripleChecker+Valid, 3788 SdHoareTripleChecker+Invalid, 2895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1144 IncrementalHoareTripleChecker+Valid, 1751 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-10-16 14:06:54,770 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3675 Valid, 3788 Invalid, 2895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1144 Valid, 1751 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2022-10-16 14:06:54,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19009 states. [2022-10-16 14:06:55,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19009 to 13697. [2022-10-16 14:06:55,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13697 states, 10391 states have (on average 1.389279183909152) internal successors, (14436), 10715 states have internal predecessors, (14436), 2468 states have call successors, (2468), 788 states have call predecessors, (2468), 782 states have return successors, (2468), 2432 states have call predecessors, (2468), 2468 states have call successors, (2468) [2022-10-16 14:06:55,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13697 states to 13697 states and 19372 transitions. [2022-10-16 14:06:55,910 INFO L78 Accepts]: Start accepts. Automaton has 13697 states and 19372 transitions. Word has length 119 [2022-10-16 14:06:55,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:06:55,910 INFO L495 AbstractCegarLoop]: Abstraction has 13697 states and 19372 transitions. [2022-10-16 14:06:55,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 4 states have internal predecessors, (68), 3 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-10-16 14:06:55,911 INFO L276 IsEmpty]: Start isEmpty. Operand 13697 states and 19372 transitions. [2022-10-16 14:06:55,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 14:06:55,916 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:06:55,917 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:06:55,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 14:06:55,917 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [sl_tx_timeoutErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_tx_timeoutErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_ioctlErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2022-10-16 14:06:55,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:06:55,918 INFO L85 PathProgramCache]: Analyzing trace with hash 978849071, now seen corresponding path program 1 times [2022-10-16 14:06:55,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:06:55,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067462856] [2022-10-16 14:06:55,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:06:55,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:06:56,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:56,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:06:56,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:56,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:06:56,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:56,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:06:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:56,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 14:06:56,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:56,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 14:06:56,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:56,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 14:06:56,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:56,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 14:06:56,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:56,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 14:06:56,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:56,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:06:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:56,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 14:06:56,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:56,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:06:56,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:56,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-16 14:06:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:06:56,300 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-10-16 14:06:56,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:06:56,302 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067462856] [2022-10-16 14:06:56,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067462856] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:06:56,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:06:56,303 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 14:06:56,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304486025] [2022-10-16 14:06:56,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:06:56,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:06:56,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:06:56,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:06:56,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:06:56,305 INFO L87 Difference]: Start difference. First operand 13697 states and 19372 transitions. Second operand has 5 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-10-16 14:06:59,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:07:01,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:07:01,634 INFO L93 Difference]: Finished difference Result 19179 states and 28181 transitions. [2022-10-16 14:07:01,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:07:01,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 121 [2022-10-16 14:07:01,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:07:01,678 INFO L225 Difference]: With dead ends: 19179 [2022-10-16 14:07:01,678 INFO L226 Difference]: Without dead ends: 19177 [2022-10-16 14:07:01,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:07:01,685 INFO L413 NwaCegarLoop]: 2409 mSDtfsCounter, 1663 mSDsluCounter, 2418 mSDsCounter, 0 mSdLazyCounter, 1382 mSolverCounterSat, 555 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1881 SdHoareTripleChecker+Valid, 4827 SdHoareTripleChecker+Invalid, 1938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 555 IncrementalHoareTripleChecker+Valid, 1382 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:07:01,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1881 Valid, 4827 Invalid, 1938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [555 Valid, 1382 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-10-16 14:07:01,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19177 states. [2022-10-16 14:07:02,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19177 to 13737. [2022-10-16 14:07:02,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13737 states, 10431 states have (on average 1.3893202952737034) internal successors, (14492), 10755 states have internal predecessors, (14492), 2468 states have call successors, (2468), 788 states have call predecessors, (2468), 782 states have return successors, (2468), 2432 states have call predecessors, (2468), 2468 states have call successors, (2468) [2022-10-16 14:07:02,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13737 states to 13737 states and 19428 transitions. [2022-10-16 14:07:02,524 INFO L78 Accepts]: Start accepts. Automaton has 13737 states and 19428 transitions. Word has length 121 [2022-10-16 14:07:02,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:07:02,524 INFO L495 AbstractCegarLoop]: Abstraction has 13737 states and 19428 transitions. [2022-10-16 14:07:02,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 1 states have call successors, (12), 3 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-10-16 14:07:02,525 INFO L276 IsEmpty]: Start isEmpty. Operand 13737 states and 19428 transitions. [2022-10-16 14:07:02,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-10-16 14:07:02,531 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:07:02,531 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 4, 4, 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] [2022-10-16 14:07:02,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 14:07:02,531 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [sl_tx_timeoutErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_tx_timeoutErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_ioctlErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2022-10-16 14:07:02,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:07:02,532 INFO L85 PathProgramCache]: Analyzing trace with hash 851481953, now seen corresponding path program 2 times [2022-10-16 14:07:02,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:07:02,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806733672] [2022-10-16 14:07:02,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:07:02,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:07:02,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:02,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:07:02,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:02,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:07:02,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:02,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:07:02,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:02,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 14:07:02,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:02,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 14:07:02,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:02,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 14:07:02,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:02,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 14:07:02,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:02,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 14:07:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:02,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:02,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:02,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 14:07:02,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:02,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:07:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:02,845 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2022-10-16 14:07:02,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:07:02,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806733672] [2022-10-16 14:07:02,845 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806733672] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:07:02,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [154153488] [2022-10-16 14:07:02,846 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:07:02,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:07:02,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:07:02,847 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:07:02,866 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 14:07:03,121 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 14:07:03,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:07:03,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:07:03,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:07:03,403 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2022-10-16 14:07:03,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:07:03,614 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2022-10-16 14:07:03,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [154153488] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:07:03,614 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:07:03,615 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 2, 3] total 7 [2022-10-16 14:07:03,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874432331] [2022-10-16 14:07:03,615 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:07:03,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 14:07:03,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:07:03,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 14:07:03,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:07:03,618 INFO L87 Difference]: Start difference. First operand 13737 states and 19428 transitions. Second operand has 8 states, 7 states have (on average 16.714285714285715) internal successors, (117), 6 states have internal predecessors, (117), 3 states have call successors, (33), 4 states have call predecessors, (33), 2 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-10-16 14:07:07,108 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:07:08,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:07:08,756 INFO L93 Difference]: Finished difference Result 14869 states and 21171 transitions. [2022-10-16 14:07:08,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 14:07:08,757 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 16.714285714285715) internal successors, (117), 6 states have internal predecessors, (117), 3 states have call successors, (33), 4 states have call predecessors, (33), 2 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 123 [2022-10-16 14:07:08,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:07:08,803 INFO L225 Difference]: With dead ends: 14869 [2022-10-16 14:07:08,804 INFO L226 Difference]: Without dead ends: 14772 [2022-10-16 14:07:08,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 263 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:07:08,816 INFO L413 NwaCegarLoop]: 1628 mSDtfsCounter, 2514 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 1298 mSolverCounterSat, 875 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2642 SdHoareTripleChecker+Valid, 3357 SdHoareTripleChecker+Invalid, 2174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 875 IncrementalHoareTripleChecker+Valid, 1298 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:07:08,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2642 Valid, 3357 Invalid, 2174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [875 Valid, 1298 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2022-10-16 14:07:08,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14772 states. [2022-10-16 14:07:09,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14772 to 13440. [2022-10-16 14:07:09,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13440 states, 10209 states have (on average 1.3895582329317269) internal successors, (14186), 10507 states have internal predecessors, (14186), 2396 states have call successors, (2396), 787 states have call predecessors, (2396), 781 states have return successors, (2396), 2360 states have call predecessors, (2396), 2396 states have call successors, (2396) [2022-10-16 14:07:09,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13440 states to 13440 states and 18978 transitions. [2022-10-16 14:07:09,955 INFO L78 Accepts]: Start accepts. Automaton has 13440 states and 18978 transitions. Word has length 123 [2022-10-16 14:07:09,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:07:09,955 INFO L495 AbstractCegarLoop]: Abstraction has 13440 states and 18978 transitions. [2022-10-16 14:07:09,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 16.714285714285715) internal successors, (117), 6 states have internal predecessors, (117), 3 states have call successors, (33), 4 states have call predecessors, (33), 2 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-10-16 14:07:09,956 INFO L276 IsEmpty]: Start isEmpty. Operand 13440 states and 18978 transitions. [2022-10-16 14:07:09,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2022-10-16 14:07:09,962 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:07:09,962 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:07:10,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 14:07:10,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:07:10,177 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [sl_tx_timeoutErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_tx_timeoutErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_ioctlErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2022-10-16 14:07:10,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:07:10,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1614980363, now seen corresponding path program 1 times [2022-10-16 14:07:10,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:07:10,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856233924] [2022-10-16 14:07:10,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:07:10,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:07:10,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:10,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:07:10,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:10,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:07:10,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:10,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:07:10,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:10,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 14:07:10,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:10,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 14:07:10,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:10,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 14:07:10,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:10,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 14:07:10,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:10,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 14:07:10,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:10,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:10,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:10,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 14:07:10,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:10,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:07:10,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:10,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-16 14:07:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:10,411 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-10-16 14:07:10,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:07:10,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856233924] [2022-10-16 14:07:10,411 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856233924] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:07:10,411 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [764012141] [2022-10-16 14:07:10,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:07:10,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:07:10,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:07:10,413 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:07:10,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 14:07:10,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:10,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 1042 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:07:10,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:07:10,824 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-10-16 14:07:10,824 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:07:10,890 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-10-16 14:07:10,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [764012141] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:07:10,891 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:07:10,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 8 [2022-10-16 14:07:10,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334967347] [2022-10-16 14:07:10,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:07:10,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 14:07:10,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:07:10,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 14:07:10,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:07:10,893 INFO L87 Difference]: Start difference. First operand 13440 states and 18978 transitions. Second operand has 9 states, 8 states have (on average 11.75) internal successors, (94), 7 states have internal predecessors, (94), 1 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-10-16 14:07:13,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:07:19,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:07:19,290 INFO L93 Difference]: Finished difference Result 30747 states and 47111 transitions. [2022-10-16 14:07:19,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 14:07:19,291 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 11.75) internal successors, (94), 7 states have internal predecessors, (94), 1 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 126 [2022-10-16 14:07:19,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:07:19,381 INFO L225 Difference]: With dead ends: 30747 [2022-10-16 14:07:19,381 INFO L226 Difference]: Without dead ends: 30746 [2022-10-16 14:07:19,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:07:19,409 INFO L413 NwaCegarLoop]: 3111 mSDtfsCounter, 4347 mSDsluCounter, 6727 mSDsCounter, 0 mSdLazyCounter, 3097 mSolverCounterSat, 943 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4943 SdHoareTripleChecker+Valid, 9838 SdHoareTripleChecker+Invalid, 4040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 943 IncrementalHoareTripleChecker+Valid, 3097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2022-10-16 14:07:19,409 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4943 Valid, 9838 Invalid, 4040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [943 Valid, 3097 Invalid, 0 Unknown, 0 Unchecked, 6.8s Time] [2022-10-16 14:07:19,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30746 states. [2022-10-16 14:07:20,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30746 to 13552. [2022-10-16 14:07:20,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13552 states, 10321 states have (on average 1.3915318283112101) internal successors, (14362), 10619 states have internal predecessors, (14362), 2396 states have call successors, (2396), 787 states have call predecessors, (2396), 781 states have return successors, (2396), 2360 states have call predecessors, (2396), 2396 states have call successors, (2396) [2022-10-16 14:07:20,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13552 states to 13552 states and 19154 transitions. [2022-10-16 14:07:20,848 INFO L78 Accepts]: Start accepts. Automaton has 13552 states and 19154 transitions. Word has length 126 [2022-10-16 14:07:20,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:07:20,848 INFO L495 AbstractCegarLoop]: Abstraction has 13552 states and 19154 transitions. [2022-10-16 14:07:20,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 11.75) internal successors, (94), 7 states have internal predecessors, (94), 1 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-10-16 14:07:20,849 INFO L276 IsEmpty]: Start isEmpty. Operand 13552 states and 19154 transitions. [2022-10-16 14:07:20,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-10-16 14:07:20,856 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:07:20,856 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:07:20,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 14:07:21,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 14:07:21,072 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting sl_change_mtuErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [sl_tx_timeoutErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_tx_timeoutErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_ioctlErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2022-10-16 14:07:21,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:07:21,072 INFO L85 PathProgramCache]: Analyzing trace with hash -865854371, now seen corresponding path program 1 times [2022-10-16 14:07:21,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:07:21,073 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245896620] [2022-10-16 14:07:21,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:07:21,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:07:21,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:21,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:07:21,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:21,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:07:21,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:21,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:07:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:21,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 14:07:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:21,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 14:07:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:21,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 14:07:21,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:21,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 14:07:21,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:21,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 14:07:21,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:21,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:21,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:21,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 14:07:21,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:21,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:07:21,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:21,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 14:07:21,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:21,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-10-16 14:07:21,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:21,403 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2022-10-16 14:07:21,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:07:21,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245896620] [2022-10-16 14:07:21,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245896620] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:07:21,404 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:07:21,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:07:21,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053935132] [2022-10-16 14:07:21,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:07:21,406 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:07:21,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:07:21,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:07:21,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:07:21,407 INFO L87 Difference]: Start difference. First operand 13552 states and 19154 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-16 14:07:23,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:07:27,338 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:07:29,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:07:33,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:07:33,552 INFO L93 Difference]: Finished difference Result 31018 states and 44192 transitions. [2022-10-16 14:07:33,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 14:07:33,553 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 128 [2022-10-16 14:07:33,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:07:33,619 INFO L225 Difference]: With dead ends: 31018 [2022-10-16 14:07:33,619 INFO L226 Difference]: Without dead ends: 19332 [2022-10-16 14:07:33,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:07:33,662 INFO L413 NwaCegarLoop]: 2710 mSDtfsCounter, 1938 mSDsluCounter, 3035 mSDsCounter, 0 mSdLazyCounter, 2158 mSolverCounterSat, 614 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2126 SdHoareTripleChecker+Valid, 5745 SdHoareTripleChecker+Invalid, 2775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 614 IncrementalHoareTripleChecker+Valid, 2158 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2022-10-16 14:07:33,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2126 Valid, 5745 Invalid, 2775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [614 Valid, 2158 Invalid, 3 Unknown, 0 Unchecked, 10.9s Time] [2022-10-16 14:07:33,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19332 states. [2022-10-16 14:07:34,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19332 to 17525. [2022-10-16 14:07:34,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17525 states, 13385 states have (on average 1.3932013447889429) internal successors, (18648), 13763 states have internal predecessors, (18648), 3070 states have call successors, (3070), 1022 states have call predecessors, (3070), 1016 states have return successors, (3070), 3025 states have call predecessors, (3070), 3070 states have call successors, (3070) [2022-10-16 14:07:34,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17525 states to 17525 states and 24788 transitions. [2022-10-16 14:07:34,839 INFO L78 Accepts]: Start accepts. Automaton has 17525 states and 24788 transitions. Word has length 128 [2022-10-16 14:07:34,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:07:34,839 INFO L495 AbstractCegarLoop]: Abstraction has 17525 states and 24788 transitions. [2022-10-16 14:07:34,839 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 3 states have internal predecessors, (74), 2 states have call successors, (14), 4 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-10-16 14:07:34,840 INFO L276 IsEmpty]: Start isEmpty. Operand 17525 states and 24788 transitions. [2022-10-16 14:07:34,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2022-10-16 14:07:34,846 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:07:34,847 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:07:34,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-16 14:07:34,847 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr31ASSERT_VIOLATIONINTEGER_OVERFLOW === [sl_tx_timeoutErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_tx_timeoutErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_ioctlErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2022-10-16 14:07:34,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:07:34,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1475214534, now seen corresponding path program 1 times [2022-10-16 14:07:34,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:07:34,848 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414000240] [2022-10-16 14:07:34,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:07:34,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:07:34,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:35,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:07:35,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:35,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:07:35,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:35,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:07:35,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:35,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 14:07:35,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:35,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 14:07:35,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:35,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 14:07:35,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:35,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 14:07:35,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:35,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 14:07:35,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:35,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:35,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:35,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 14:07:35,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:35,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:07:35,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:35,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-10-16 14:07:35,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:35,191 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-10-16 14:07:35,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:07:35,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414000240] [2022-10-16 14:07:35,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414000240] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:07:35,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1659038350] [2022-10-16 14:07:35,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:07:35,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:07:35,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:07:35,193 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:07:35,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 14:07:35,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:35,527 INFO L263 TraceCheckSpWp]: Trace formula consists of 1043 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:07:35,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:07:35,561 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-10-16 14:07:35,561 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:07:35,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1659038350] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:07:35,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:07:35,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-10-16 14:07:35,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254590759] [2022-10-16 14:07:35,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:07:35,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:07:35,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:07:35,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:07:35,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:07:35,566 INFO L87 Difference]: Start difference. First operand 17525 states and 24788 transitions. Second operand has 4 states, 3 states have (on average 25.333333333333332) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-10-16 14:07:37,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:07:37,102 INFO L93 Difference]: Finished difference Result 27237 states and 39954 transitions. [2022-10-16 14:07:37,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:07:37,103 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 25.333333333333332) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 127 [2022-10-16 14:07:37,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:07:37,165 INFO L225 Difference]: With dead ends: 27237 [2022-10-16 14:07:37,166 INFO L226 Difference]: Without dead ends: 27236 [2022-10-16 14:07:37,173 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:07:37,174 INFO L413 NwaCegarLoop]: 2719 mSDtfsCounter, 1147 mSDsluCounter, 4108 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1357 SdHoareTripleChecker+Valid, 6827 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:07:37,174 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1357 Valid, 6827 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:07:37,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27236 states. [2022-10-16 14:07:38,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27236 to 17524. [2022-10-16 14:07:38,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17524 states, 13385 states have (on average 1.3909600298841986) internal successors, (18618), 13762 states have internal predecessors, (18618), 3070 states have call successors, (3070), 1022 states have call predecessors, (3070), 1016 states have return successors, (3070), 3025 states have call predecessors, (3070), 3070 states have call successors, (3070) [2022-10-16 14:07:38,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17524 states to 17524 states and 24758 transitions. [2022-10-16 14:07:38,172 INFO L78 Accepts]: Start accepts. Automaton has 17524 states and 24758 transitions. Word has length 127 [2022-10-16 14:07:38,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:07:38,173 INFO L495 AbstractCegarLoop]: Abstraction has 17524 states and 24758 transitions. [2022-10-16 14:07:38,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 25.333333333333332) internal successors, (76), 4 states have internal predecessors, (76), 1 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2022-10-16 14:07:38,173 INFO L276 IsEmpty]: Start isEmpty. Operand 17524 states and 24758 transitions. [2022-10-16 14:07:38,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-10-16 14:07:38,179 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:07:38,180 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:07:38,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 14:07:38,394 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:07:38,394 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [sl_tx_timeoutErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_tx_timeoutErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_ioctlErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2022-10-16 14:07:38,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:07:38,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1733236668, now seen corresponding path program 1 times [2022-10-16 14:07:38,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:07:38,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276627000] [2022-10-16 14:07:38,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:07:38,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:07:38,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:38,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:07:38,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:38,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:07:38,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:38,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:07:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:38,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 14:07:38,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:38,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 14:07:38,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:38,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 14:07:38,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:38,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 14:07:38,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:38,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 14:07:38,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:38,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:38,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:38,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 14:07:38,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:38,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:07:38,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:38,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 14:07:38,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:38,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-10-16 14:07:38,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:38,720 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-10-16 14:07:38,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:07:38,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276627000] [2022-10-16 14:07:38,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276627000] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:07:38,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944168889] [2022-10-16 14:07:38,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:07:38,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:07:38,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:07:38,722 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:07:38,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 14:07:39,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:39,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:07:39,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:07:39,081 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-10-16 14:07:39,081 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:07:39,157 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-10-16 14:07:39,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1944168889] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:07:39,158 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:07:39,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 8 [2022-10-16 14:07:39,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532147611] [2022-10-16 14:07:39,158 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:07:39,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-10-16 14:07:39,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:07:39,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-10-16 14:07:39,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:07:39,160 INFO L87 Difference]: Start difference. First operand 17524 states and 24758 transitions. Second operand has 9 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 6 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2022-10-16 14:07:41,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:07:44,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:07:50,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:07:50,566 INFO L93 Difference]: Finished difference Result 39535 states and 60386 transitions. [2022-10-16 14:07:50,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 14:07:50,567 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 6 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 128 [2022-10-16 14:07:50,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:07:50,673 INFO L225 Difference]: With dead ends: 39535 [2022-10-16 14:07:50,673 INFO L226 Difference]: Without dead ends: 39534 [2022-10-16 14:07:50,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-10-16 14:07:50,687 INFO L413 NwaCegarLoop]: 2376 mSDtfsCounter, 3938 mSDsluCounter, 6211 mSDsCounter, 0 mSdLazyCounter, 3850 mSolverCounterSat, 967 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4545 SdHoareTripleChecker+Valid, 8587 SdHoareTripleChecker+Invalid, 4818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 967 IncrementalHoareTripleChecker+Valid, 3850 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-10-16 14:07:50,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4545 Valid, 8587 Invalid, 4818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [967 Valid, 3850 Invalid, 1 Unknown, 0 Unchecked, 8.7s Time] [2022-10-16 14:07:50,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39534 states. [2022-10-16 14:07:52,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39534 to 17844. [2022-10-16 14:07:52,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17844 states, 13675 states have (on average 1.3951005484460695) internal successors, (19078), 14052 states have internal predecessors, (19078), 3100 states have call successors, (3100), 1022 states have call predecessors, (3100), 1016 states have return successors, (3100), 3055 states have call predecessors, (3100), 3100 states have call successors, (3100) [2022-10-16 14:07:52,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17844 states to 17844 states and 25278 transitions. [2022-10-16 14:07:52,109 INFO L78 Accepts]: Start accepts. Automaton has 17844 states and 25278 transitions. Word has length 128 [2022-10-16 14:07:52,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:07:52,109 INFO L495 AbstractCegarLoop]: Abstraction has 17844 states and 25278 transitions. [2022-10-16 14:07:52,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.625) internal successors, (101), 7 states have internal predecessors, (101), 6 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2022-10-16 14:07:52,109 INFO L276 IsEmpty]: Start isEmpty. Operand 17844 states and 25278 transitions. [2022-10-16 14:07:52,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-10-16 14:07:52,115 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:07:52,115 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:07:52,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 14:07:52,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:07:52,330 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting sl_change_mtuErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [sl_tx_timeoutErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_tx_timeoutErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_ioctlErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2022-10-16 14:07:52,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:07:52,331 INFO L85 PathProgramCache]: Analyzing trace with hash 1772763980, now seen corresponding path program 1 times [2022-10-16 14:07:52,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:07:52,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617850252] [2022-10-16 14:07:52,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:07:52,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:07:52,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:53,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:07:53,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:53,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:07:53,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:53,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:07:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:53,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 14:07:53,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:53,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 14:07:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:53,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 14:07:53,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:53,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 14:07:53,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:53,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 14:07:53,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:53,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:07:53,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:53,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 14:07:53,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:53,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:07:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:53,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 14:07:53,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:53,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-16 14:07:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:07:53,099 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2022-10-16 14:07:53,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:07:53,100 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617850252] [2022-10-16 14:07:53,100 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617850252] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:07:53,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:07:53,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:07:53,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036655464] [2022-10-16 14:07:53,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:07:53,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:07:53,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:07:53,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:07:53,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:07:53,102 INFO L87 Difference]: Start difference. First operand 17844 states and 25278 transitions. Second operand has 6 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-10-16 14:07:59,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:07:59,037 INFO L93 Difference]: Finished difference Result 19578 states and 27972 transitions. [2022-10-16 14:07:59,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 14:07:59,037 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 129 [2022-10-16 14:07:59,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:07:59,105 INFO L225 Difference]: With dead ends: 19578 [2022-10-16 14:07:59,111 INFO L226 Difference]: Without dead ends: 19577 [2022-10-16 14:07:59,120 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:07:59,121 INFO L413 NwaCegarLoop]: 1632 mSDtfsCounter, 760 mSDsluCounter, 3111 mSDsCounter, 0 mSdLazyCounter, 2253 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 841 SdHoareTripleChecker+Valid, 4743 SdHoareTripleChecker+Invalid, 2573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 2253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-10-16 14:07:59,121 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [841 Valid, 4743 Invalid, 2573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [320 Valid, 2253 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-10-16 14:07:59,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19577 states. [2022-10-16 14:08:00,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19577 to 17843. [2022-10-16 14:08:00,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17843 states, 13675 states have (on average 1.3942230347349178) internal successors, (19066), 14051 states have internal predecessors, (19066), 3100 states have call successors, (3100), 1022 states have call predecessors, (3100), 1016 states have return successors, (3100), 3055 states have call predecessors, (3100), 3100 states have call successors, (3100) [2022-10-16 14:08:00,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17843 states to 17843 states and 25266 transitions. [2022-10-16 14:08:00,265 INFO L78 Accepts]: Start accepts. Automaton has 17843 states and 25266 transitions. Word has length 129 [2022-10-16 14:08:00,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:08:00,266 INFO L495 AbstractCegarLoop]: Abstraction has 17843 states and 25266 transitions. [2022-10-16 14:08:00,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.0) internal successors, (70), 4 states have internal predecessors, (70), 1 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-10-16 14:08:00,266 INFO L276 IsEmpty]: Start isEmpty. Operand 17843 states and 25266 transitions. [2022-10-16 14:08:00,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-10-16 14:08:00,271 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:08:00,272 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:08:00,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-16 14:08:00,272 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [sl_tx_timeoutErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_tx_timeoutErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_ioctlErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2022-10-16 14:08:00,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:08:00,272 INFO L85 PathProgramCache]: Analyzing trace with hash 2104239867, now seen corresponding path program 1 times [2022-10-16 14:08:00,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:08:00,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930348778] [2022-10-16 14:08:00,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:08:00,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:08:00,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:00,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:08:00,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:00,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:08:00,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:00,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:08:00,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:00,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 14:08:00,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:00,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 14:08:00,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:00,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 14:08:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:00,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 14:08:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:00,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 14:08:00,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:00,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:00,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:00,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 14:08:00,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:00,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:08:00,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:00,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 14:08:00,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:00,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-10-16 14:08:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:00,529 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-10-16 14:08:00,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:08:00,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930348778] [2022-10-16 14:08:00,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930348778] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:08:00,530 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158734378] [2022-10-16 14:08:00,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:08:00,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:08:00,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:08:00,532 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:08:00,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 14:08:00,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:00,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 1038 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 14:08:00,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:08:00,916 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-10-16 14:08:00,916 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:08:00,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158734378] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:08:00,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:08:00,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2022-10-16 14:08:00,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408429421] [2022-10-16 14:08:00,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:08:00,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:08:00,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:08:00,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:08:00,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:08:00,919 INFO L87 Difference]: Start difference. First operand 17843 states and 25266 transitions. Second operand has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-10-16 14:08:02,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:08:02,808 INFO L93 Difference]: Finished difference Result 26360 states and 38492 transitions. [2022-10-16 14:08:02,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:08:02,811 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 129 [2022-10-16 14:08:02,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:08:02,884 INFO L225 Difference]: With dead ends: 26360 [2022-10-16 14:08:02,884 INFO L226 Difference]: Without dead ends: 26359 [2022-10-16 14:08:02,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:08:02,897 INFO L413 NwaCegarLoop]: 2873 mSDtfsCounter, 1142 mSDsluCounter, 3734 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1350 SdHoareTripleChecker+Valid, 6607 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:08:02,898 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1350 Valid, 6607 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:08:02,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26359 states. [2022-10-16 14:08:04,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26359 to 17842. [2022-10-16 14:08:04,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17842 states, 13675 states have (on average 1.3920292504570384) internal successors, (19036), 14050 states have internal predecessors, (19036), 3100 states have call successors, (3100), 1022 states have call predecessors, (3100), 1016 states have return successors, (3100), 3055 states have call predecessors, (3100), 3100 states have call successors, (3100) [2022-10-16 14:08:04,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17842 states to 17842 states and 25236 transitions. [2022-10-16 14:08:04,156 INFO L78 Accepts]: Start accepts. Automaton has 17842 states and 25236 transitions. Word has length 129 [2022-10-16 14:08:04,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:08:04,157 INFO L495 AbstractCegarLoop]: Abstraction has 17842 states and 25236 transitions. [2022-10-16 14:08:04,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2022-10-16 14:08:04,157 INFO L276 IsEmpty]: Start isEmpty. Operand 17842 states and 25236 transitions. [2022-10-16 14:08:04,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2022-10-16 14:08:04,161 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:08:04,161 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:08:04,197 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 14:08:04,376 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:08:04,377 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [sl_tx_timeoutErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_tx_timeoutErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_ioctlErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2022-10-16 14:08:04,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:08:04,378 INFO L85 PathProgramCache]: Analyzing trace with hash 891587274, now seen corresponding path program 1 times [2022-10-16 14:08:04,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:08:04,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865694764] [2022-10-16 14:08:04,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:08:04,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:08:04,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:04,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:08:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:04,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:08:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:04,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:08:04,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:04,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 14:08:04,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:04,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 14:08:04,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:04,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 14:08:04,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:04,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 14:08:04,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:04,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 14:08:04,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:04,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:04,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:04,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 14:08:04,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:04,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:08:04,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:04,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 14:08:04,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:04,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-10-16 14:08:04,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:04,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-10-16 14:08:04,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:04,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-16 14:08:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:04,722 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-10-16 14:08:04,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:08:04,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865694764] [2022-10-16 14:08:04,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865694764] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:08:04,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [413799703] [2022-10-16 14:08:04,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:08:04,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:08:04,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:08:04,725 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:08:04,747 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 14:08:05,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:05,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:08:05,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:08:05,371 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-10-16 14:08:05,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:08:05,568 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2022-10-16 14:08:05,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [413799703] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:08:05,569 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:08:05,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 5] total 12 [2022-10-16 14:08:05,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96636728] [2022-10-16 14:08:05,569 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:08:05,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 14:08:05,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:08:05,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 14:08:05,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2022-10-16 14:08:05,571 INFO L87 Difference]: Start difference. First operand 17842 states and 25236 transitions. Second operand has 12 states, 12 states have (on average 13.166666666666666) internal successors, (158), 10 states have internal predecessors, (158), 6 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (44), 6 states have call predecessors, (44), 6 states have call successors, (44) [2022-10-16 14:08:07,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:08:09,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:08:15,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:08:18,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:08:18,988 INFO L93 Difference]: Finished difference Result 19810 states and 28254 transitions. [2022-10-16 14:08:18,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 14:08:18,989 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 13.166666666666666) internal successors, (158), 10 states have internal predecessors, (158), 6 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (44), 6 states have call predecessors, (44), 6 states have call successors, (44) Word has length 131 [2022-10-16 14:08:18,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:08:19,042 INFO L225 Difference]: With dead ends: 19810 [2022-10-16 14:08:19,042 INFO L226 Difference]: Without dead ends: 19708 [2022-10-16 14:08:19,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2022-10-16 14:08:19,052 INFO L413 NwaCegarLoop]: 1618 mSDtfsCounter, 3755 mSDsluCounter, 3208 mSDsCounter, 0 mSdLazyCounter, 3431 mSolverCounterSat, 1416 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3887 SdHoareTripleChecker+Valid, 4826 SdHoareTripleChecker+Invalid, 4850 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1416 IncrementalHoareTripleChecker+Valid, 3431 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-10-16 14:08:19,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3887 Valid, 4826 Invalid, 4850 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1416 Valid, 3431 Invalid, 3 Unknown, 0 Unchecked, 11.9s Time] [2022-10-16 14:08:19,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19708 states. [2022-10-16 14:08:20,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19708 to 17986. [2022-10-16 14:08:20,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17986 states, 13783 states have (on average 1.3909888993687876) internal successors, (19172), 14166 states have internal predecessors, (19172), 3136 states have call successors, (3136), 1022 states have call predecessors, (3136), 1016 states have return successors, (3136), 3091 states have call predecessors, (3136), 3136 states have call successors, (3136) [2022-10-16 14:08:20,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17986 states to 17986 states and 25444 transitions. [2022-10-16 14:08:20,309 INFO L78 Accepts]: Start accepts. Automaton has 17986 states and 25444 transitions. Word has length 131 [2022-10-16 14:08:20,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:08:20,309 INFO L495 AbstractCegarLoop]: Abstraction has 17986 states and 25444 transitions. [2022-10-16 14:08:20,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 13.166666666666666) internal successors, (158), 10 states have internal predecessors, (158), 6 states have call successors, (45), 4 states have call predecessors, (45), 2 states have return successors, (44), 6 states have call predecessors, (44), 6 states have call successors, (44) [2022-10-16 14:08:20,310 INFO L276 IsEmpty]: Start isEmpty. Operand 17986 states and 25444 transitions. [2022-10-16 14:08:20,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-10-16 14:08:20,315 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:08:20,315 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:08:20,343 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-10-16 14:08:20,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-10-16 14:08:20,528 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting sl_change_mtuErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [sl_tx_timeoutErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_tx_timeoutErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_ioctlErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2022-10-16 14:08:20,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:08:20,529 INFO L85 PathProgramCache]: Analyzing trace with hash -878890867, now seen corresponding path program 1 times [2022-10-16 14:08:20,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:08:20,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752957925] [2022-10-16 14:08:20,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:08:20,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:08:20,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:20,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:08:20,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:20,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:08:20,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:20,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:08:20,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:20,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 14:08:20,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:21,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 14:08:21,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:21,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 14:08:21,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:21,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 14:08:21,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:21,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 14:08:21,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:21,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:21,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 14:08:21,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:21,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:08:21,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:21,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 14:08:21,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:21,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-16 14:08:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:21,061 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2022-10-16 14:08:21,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:08:21,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752957925] [2022-10-16 14:08:21,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752957925] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:08:21,062 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:08:21,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 14:08:21,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921969709] [2022-10-16 14:08:21,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:08:21,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:08:21,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:08:21,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:08:21,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-16 14:08:21,064 INFO L87 Difference]: Start difference. First operand 17986 states and 25444 transitions. Second operand has 6 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-10-16 14:08:23,189 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:08:25,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:08:29,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-10-16 14:08:32,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:08:32,531 INFO L93 Difference]: Finished difference Result 19720 states and 28138 transitions. [2022-10-16 14:08:32,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-16 14:08:32,532 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 130 [2022-10-16 14:08:32,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:08:32,586 INFO L225 Difference]: With dead ends: 19720 [2022-10-16 14:08:32,586 INFO L226 Difference]: Without dead ends: 19719 [2022-10-16 14:08:32,594 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:08:32,595 INFO L413 NwaCegarLoop]: 1630 mSDtfsCounter, 1239 mSDsluCounter, 2503 mSDsCounter, 0 mSdLazyCounter, 1966 mSolverCounterSat, 592 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1320 SdHoareTripleChecker+Valid, 4133 SdHoareTripleChecker+Invalid, 2561 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 592 IncrementalHoareTripleChecker+Valid, 1966 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:08:32,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1320 Valid, 4133 Invalid, 2561 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [592 Valid, 1966 Invalid, 3 Unknown, 0 Unchecked, 10.0s Time] [2022-10-16 14:08:32,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19719 states. [2022-10-16 14:08:33,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19719 to 17985. [2022-10-16 14:08:33,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17985 states, 13783 states have (on average 1.3901182616266414) internal successors, (19160), 14165 states have internal predecessors, (19160), 3136 states have call successors, (3136), 1022 states have call predecessors, (3136), 1016 states have return successors, (3136), 3091 states have call predecessors, (3136), 3136 states have call successors, (3136) [2022-10-16 14:08:33,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17985 states to 17985 states and 25432 transitions. [2022-10-16 14:08:33,865 INFO L78 Accepts]: Start accepts. Automaton has 17985 states and 25432 transitions. Word has length 130 [2022-10-16 14:08:33,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:08:33,865 INFO L495 AbstractCegarLoop]: Abstraction has 17985 states and 25432 transitions. [2022-10-16 14:08:33,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 14.2) internal successors, (71), 4 states have internal predecessors, (71), 1 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-10-16 14:08:33,866 INFO L276 IsEmpty]: Start isEmpty. Operand 17985 states and 25432 transitions. [2022-10-16 14:08:33,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2022-10-16 14:08:33,871 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:08:33,872 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 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, 1, 1, 1, 1] [2022-10-16 14:08:33,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-10-16 14:08:33,872 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [sl_tx_timeoutErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_tx_timeoutErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_ioctlErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2022-10-16 14:08:33,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:08:33,873 INFO L85 PathProgramCache]: Analyzing trace with hash 1584947203, now seen corresponding path program 1 times [2022-10-16 14:08:33,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:08:33,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076069038] [2022-10-16 14:08:33,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:08:33,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:08:33,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:34,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:08:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:34,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:08:34,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:34,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:08:34,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:34,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 14:08:34,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:34,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 14:08:34,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:34,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 14:08:34,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:34,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 14:08:34,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:34,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 14:08:34,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:34,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:34,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:34,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 14:08:34,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:34,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:08:34,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:34,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-10-16 14:08:34,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:34,131 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-10-16 14:08:34,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:08:34,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076069038] [2022-10-16 14:08:34,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076069038] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:08:34,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543716182] [2022-10-16 14:08:34,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:08:34,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:08:34,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:08:34,134 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:08:34,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 14:08:34,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:34,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 14:08:34,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:08:34,556 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-10-16 14:08:34,556 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:08:34,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543716182] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:08:34,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:08:34,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2022-10-16 14:08:34,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430796675] [2022-10-16 14:08:34,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:08:34,557 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:08:34,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:08:34,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:08:34,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-10-16 14:08:34,558 INFO L87 Difference]: Start difference. First operand 17985 states and 25432 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 14:08:36,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:08:36,728 INFO L93 Difference]: Finished difference Result 42881 states and 60688 transitions. [2022-10-16 14:08:36,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 14:08:36,728 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 130 [2022-10-16 14:08:36,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:08:36,810 INFO L225 Difference]: With dead ends: 42881 [2022-10-16 14:08:36,811 INFO L226 Difference]: Without dead ends: 26822 [2022-10-16 14:08:36,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2022-10-16 14:08:36,856 INFO L413 NwaCegarLoop]: 3065 mSDtfsCounter, 2212 mSDsluCounter, 10057 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2212 SdHoareTripleChecker+Valid, 13122 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 14:08:36,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2212 Valid, 13122 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 14:08:36,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26822 states. [2022-10-16 14:08:38,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26822 to 18035. [2022-10-16 14:08:38,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18035 states, 13833 states have (on average 1.3887081616424493) internal successors, (19210), 14215 states have internal predecessors, (19210), 3136 states have call successors, (3136), 1022 states have call predecessors, (3136), 1016 states have return successors, (3136), 3091 states have call predecessors, (3136), 3136 states have call successors, (3136) [2022-10-16 14:08:38,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18035 states to 18035 states and 25482 transitions. [2022-10-16 14:08:38,333 INFO L78 Accepts]: Start accepts. Automaton has 18035 states and 25482 transitions. Word has length 130 [2022-10-16 14:08:38,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:08:38,334 INFO L495 AbstractCegarLoop]: Abstraction has 18035 states and 25482 transitions. [2022-10-16 14:08:38,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-10-16 14:08:38,334 INFO L276 IsEmpty]: Start isEmpty. Operand 18035 states and 25482 transitions. [2022-10-16 14:08:38,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2022-10-16 14:08:38,337 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:08:38,338 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:08:38,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 14:08:38,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-10-16 14:08:38,539 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting sl_change_mtuErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [sl_tx_timeoutErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_tx_timeoutErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sl_ioctlErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2022-10-16 14:08:38,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:08:38,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1494453520, now seen corresponding path program 1 times [2022-10-16 14:08:38,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:08:38,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134761315] [2022-10-16 14:08:38,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:08:38,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:08:38,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:39,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 14:08:39,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:39,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-16 14:08:39,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:39,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-16 14:08:39,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:39,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-16 14:08:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:39,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-10-16 14:08:39,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:39,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 14:08:39,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:39,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-16 14:08:39,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:39,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-10-16 14:08:39,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:39,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-10-16 14:08:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:39,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2022-10-16 14:08:39,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:39,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-16 14:08:39,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:39,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-10-16 14:08:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:39,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-10-16 14:08:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:08:39,157 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2022-10-16 14:08:39,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:08:39,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134761315] [2022-10-16 14:08:39,158 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134761315] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:08:39,158 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:08:39,158 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 14:08:39,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888248247] [2022-10-16 14:08:39,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:08:39,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 14:08:39,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:08:39,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 14:08:39,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-16 14:08:39,161 INFO L87 Difference]: Start difference. First operand 18035 states and 25482 transitions. Second operand has 7 states, 6 states have (on average 12.166666666666666) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (14), 3 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-10-16 14:08:42,988 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 []