/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_fr.ko-entry_point.cil.out.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:15:12,898 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:15:12,903 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:15:12,991 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 21:15:12,992 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 21:15:12,998 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 21:15:13,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 21:15:13,015 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 21:15:13,018 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 21:15:13,027 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 21:15:13,029 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 21:15:13,033 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 21:15:13,034 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 21:15:13,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 21:15:13,052 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 21:15:13,053 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 21:15:13,055 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 21:15:13,056 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 21:15:13,058 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 21:15:13,061 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 21:15:13,063 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 21:15:13,072 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 21:15:13,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 21:15:13,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 21:15:13,089 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 21:15:13,089 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 21:15:13,093 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 21:15:13,095 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 21:15:13,096 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 21:15:13,097 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 21:15:13,097 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 21:15:13,101 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 21:15:13,102 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 21:15:13,104 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 21:15:13,107 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 21:15:13,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 21:15:13,109 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 21:15:13,109 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 21:15:13,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:15:13,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:15:13,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:15:13,114 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 21:15:13,190 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:15:13,190 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:15:13,191 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:15:13,192 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:15:13,195 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:15:13,195 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:15:13,198 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:15:13,199 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:15:13,199 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:15:13,200 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:15:13,201 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:15:13,201 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:15:13,201 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:15:13,202 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:15:13,202 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:15:13,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:15:13,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:15:13,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:15:13,203 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:15:13,203 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:15:13,203 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:15:13,203 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:15:13,204 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:15:13,204 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:15:13,204 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:15:13,204 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:15:13,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:15:13,205 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:15:13,205 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:15:13,205 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:15:13,206 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:15:13,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:15:13,206 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:15:13,207 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:15:13,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:15:13,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:15:13,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:15:13,846 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:15:13,847 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:15:13,849 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_fr.ko-entry_point.cil.out.i [2022-10-15 21:15:13,963 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18f6664bc/999dd5f470964bd3be6f16b81528bee5/FLAGd4dfcacfb [2022-10-15 21:15:15,425 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:15:15,426 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_fr.ko-entry_point.cil.out.i [2022-10-15 21:15:15,493 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18f6664bc/999dd5f470964bd3be6f16b81528bee5/FLAGd4dfcacfb [2022-10-15 21:15:15,742 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18f6664bc/999dd5f470964bd3be6f16b81528bee5 [2022-10-15 21:15:15,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:15:15,758 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:15:15,761 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:15:15,762 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:15:15,767 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:15:15,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:15:15" (1/1) ... [2022-10-15 21:15:15,772 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7163e4f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:15, skipping insertion in model container [2022-10-15 21:15:15,772 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:15:15" (1/1) ... [2022-10-15 21:15:15,783 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:15:15,962 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:15:17,568 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_fr.ko-entry_point.cil.out.i[154748,154761] [2022-10-15 21:15:18,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:15:18,705 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:15:19,057 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_fr.ko-entry_point.cil.out.i[154748,154761] [2022-10-15 21:15:19,568 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:15:19,707 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:15:19,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:19 WrapperNode [2022-10-15 21:15:19,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:15:19,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:15:19,711 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:15:19,711 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:15:19,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:19" (1/1) ... [2022-10-15 21:15:19,857 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:19" (1/1) ... [2022-10-15 21:15:20,102 INFO L138 Inliner]: procedures = 174, calls = 1111, calls flagged for inlining = 78, calls inlined = 75, statements flattened = 3604 [2022-10-15 21:15:20,103 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:15:20,104 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:15:20,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:15:20,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:15:20,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:19" (1/1) ... [2022-10-15 21:15:20,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:19" (1/1) ... [2022-10-15 21:15:20,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:19" (1/1) ... [2022-10-15 21:15:20,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:19" (1/1) ... [2022-10-15 21:15:20,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:19" (1/1) ... [2022-10-15 21:15:20,536 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:19" (1/1) ... [2022-10-15 21:15:20,582 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:19" (1/1) ... [2022-10-15 21:15:20,613 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:19" (1/1) ... [2022-10-15 21:15:20,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:15:20,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:15:20,711 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:15:20,711 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:15:20,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:19" (1/1) ... [2022-10-15 21:15:20,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:15:20,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:15:20,780 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 21:15:20,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 21:15:20,894 INFO L130 BoogieDeclarations]: Found specification of procedure dlci_to_q922 [2022-10-15 21:15:20,895 INFO L138 BoogieDeclarations]: Found implementation of procedure dlci_to_q922 [2022-10-15 21:15:20,895 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-10-15 21:15:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-10-15 21:15:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-10-15 21:15:20,896 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-10-15 21:15:20,896 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-10-15 21:15:20,897 INFO L130 BoogieDeclarations]: Found specification of procedure dev_queue_xmit [2022-10-15 21:15:20,897 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_queue_xmit [2022-10-15 21:15:20,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 21:15:20,897 INFO L130 BoogieDeclarations]: Found specification of procedure state [2022-10-15 21:15:20,897 INFO L138 BoogieDeclarations]: Found implementation of procedure state [2022-10-15 21:15:20,897 INFO L130 BoogieDeclarations]: Found specification of procedure fr_hard_header [2022-10-15 21:15:20,898 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_hard_header [2022-10-15 21:15:20,898 INFO L130 BoogieDeclarations]: Found specification of procedure find_pvc [2022-10-15 21:15:20,898 INFO L138 BoogieDeclarations]: Found implementation of procedure find_pvc [2022-10-15 21:15:20,898 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2022-10-15 21:15:20,898 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2022-10-15 21:15:20,899 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-10-15 21:15:20,899 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-10-15 21:15:20,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-10-15 21:15:20,899 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-10-15 21:15:20,899 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2022-10-15 21:15:20,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2022-10-15 21:15:20,900 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-10-15 21:15:20,900 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-10-15 21:15:20,900 INFO L130 BoogieDeclarations]: Found specification of procedure pvc_carrier [2022-10-15 21:15:20,900 INFO L138 BoogieDeclarations]: Found implementation of procedure pvc_carrier [2022-10-15 21:15:20,900 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-15 21:15:20,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-15 21:15:20,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_2 [2022-10-15 21:15:20,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_2 [2022-10-15 21:15:20,901 INFO L130 BoogieDeclarations]: Found specification of procedure dev_close [2022-10-15 21:15:20,901 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_close [2022-10-15 21:15:20,901 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-10-15 21:15:20,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-10-15 21:15:20,902 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-10-15 21:15:20,902 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-10-15 21:15:20,902 INFO L130 BoogieDeclarations]: Found specification of procedure fr_rx [2022-10-15 21:15:20,902 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_rx [2022-10-15 21:15:20,902 INFO L130 BoogieDeclarations]: Found specification of procedure pvc_ioctl [2022-10-15 21:15:20,902 INFO L138 BoogieDeclarations]: Found implementation of procedure pvc_ioctl [2022-10-15 21:15:20,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 21:15:20,903 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-10-15 21:15:20,903 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-10-15 21:15:20,903 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-10-15 21:15:20,903 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-10-15 21:15:20,904 INFO L130 BoogieDeclarations]: Found specification of procedure fr_ioctl [2022-10-15 21:15:20,904 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_ioctl [2022-10-15 21:15:20,905 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-10-15 21:15:20,905 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-10-15 21:15:20,905 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-10-15 21:15:20,906 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-10-15 21:15:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-10-15 21:15:20,906 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-10-15 21:15:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-10-15 21:15:20,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-10-15 21:15:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_netdev_mqs [2022-10-15 21:15:20,908 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_netdev_mqs [2022-10-15 21:15:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-10-15 21:15:20,909 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-10-15 21:15:20,909 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-10-15 21:15:20,909 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-10-15 21:15:20,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-15 21:15:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_change_mtu [2022-10-15 21:15:20,910 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_change_mtu [2022-10-15 21:15:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-10-15 21:15:20,910 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-10-15 21:15:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-10-15 21:15:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-10-15 21:15:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure fr_log_dlci_active [2022-10-15 21:15:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_log_dlci_active [2022-10-15 21:15:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:15:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 21:15:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-15 21:15:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure delete_unused_pvcs [2022-10-15 21:15:20,915 INFO L138 BoogieDeclarations]: Found implementation of procedure delete_unused_pvcs [2022-10-15 21:15:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2022-10-15 21:15:20,915 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2022-10-15 21:15:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-10-15 21:15:20,915 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-10-15 21:15:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure pvc_is_used [2022-10-15 21:15:20,916 INFO L138 BoogieDeclarations]: Found implementation of procedure pvc_is_used [2022-10-15 21:15:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-15 21:15:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2022-10-15 21:15:20,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2022-10-15 21:15:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-10-15 21:15:20,917 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-10-15 21:15:20,918 INFO L130 BoogieDeclarations]: Found specification of procedure fr_set_link_state [2022-10-15 21:15:20,918 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_set_link_state [2022-10-15 21:15:20,918 INFO L130 BoogieDeclarations]: Found specification of procedure fr_lmi_send [2022-10-15 21:15:20,918 INFO L138 BoogieDeclarations]: Found implementation of procedure fr_lmi_send [2022-10-15 21:15:20,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 21:15:20,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-15 21:15:20,920 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-10-15 21:15:20,920 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-10-15 21:15:20,920 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2022-10-15 21:15:20,921 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2022-10-15 21:15:20,921 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-10-15 21:15:20,921 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-10-15 21:15:20,921 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-10-15 21:15:20,921 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-10-15 21:15:20,922 INFO L130 BoogieDeclarations]: Found specification of procedure get_dev_p [2022-10-15 21:15:20,922 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dev_p [2022-10-15 21:15:20,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:15:20,922 INFO L130 BoogieDeclarations]: Found specification of procedure linkwatch_fire_event [2022-10-15 21:15:20,923 INFO L138 BoogieDeclarations]: Found implementation of procedure linkwatch_fire_event [2022-10-15 21:15:20,923 INFO L130 BoogieDeclarations]: Found specification of procedure add_pvc [2022-10-15 21:15:20,923 INFO L138 BoogieDeclarations]: Found implementation of procedure add_pvc [2022-10-15 21:15:20,924 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdevice [2022-10-15 21:15:20,924 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdevice [2022-10-15 21:15:20,924 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-10-15 21:15:20,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-10-15 21:15:20,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-10-15 21:15:20,924 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-10-15 21:15:20,925 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-10-15 21:15:20,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:15:20,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:15:21,893 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:15:21,898 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:15:22,232 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-10-15 21:15:26,069 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:15:26,128 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:15:26,129 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-15 21:15:26,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:15:26 BoogieIcfgContainer [2022-10-15 21:15:26,144 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:15:26,150 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:15:26,150 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:15:26,157 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:15:26,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:15:15" (1/3) ... [2022-10-15 21:15:26,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3177ef39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:15:26, skipping insertion in model container [2022-10-15 21:15:26,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:15:19" (2/3) ... [2022-10-15 21:15:26,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3177ef39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:15:26, skipping insertion in model container [2022-10-15 21:15:26,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:15:26" (3/3) ... [2022-10-15 21:15:26,163 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wan--hdlc_fr.ko-entry_point.cil.out.i [2022-10-15 21:15:26,199 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:15:26,199 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 110 error locations. [2022-10-15 21:15:26,395 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:15:26,407 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;@1f4f0ca0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:15:26,407 INFO L358 AbstractCegarLoop]: Starting to check reachability of 110 error locations. [2022-10-15 21:15:26,427 INFO L276 IsEmpty]: Start isEmpty. Operand has 1377 states, 951 states have (on average 1.4500525762355416) internal successors, (1379), 1076 states have internal predecessors, (1379), 265 states have call successors, (265), 51 states have call predecessors, (265), 50 states have return successors, (261), 260 states have call predecessors, (261), 261 states have call successors, (261) [2022-10-15 21:15:26,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-15 21:15:26,450 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:15:26,451 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:15:26,452 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [dlci_to_q922Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, dlci_to_q922Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 107 more)] === [2022-10-15 21:15:26,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:15:26,464 INFO L85 PathProgramCache]: Analyzing trace with hash -922648073, now seen corresponding path program 1 times [2022-10-15 21:15:26,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:15:26,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706584238] [2022-10-15 21:15:26,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:15:26,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:15:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:27,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:15:27,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:27,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:15:27,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:27,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:15:27,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:27,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:15:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:27,287 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-15 21:15:27,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:15:27,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706584238] [2022-10-15 21:15:27,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706584238] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:15:27,291 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:15:27,292 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:15:27,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633996815] [2022-10-15 21:15:27,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:15:27,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:15:27,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:15:27,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:15:27,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:15:27,373 INFO L87 Difference]: Start difference. First operand has 1377 states, 951 states have (on average 1.4500525762355416) internal successors, (1379), 1076 states have internal predecessors, (1379), 265 states have call successors, (265), 51 states have call predecessors, (265), 50 states have return successors, (261), 260 states have call predecessors, (261), 261 states have call successors, (261) Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:15:34,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:15:34,920 INFO L93 Difference]: Finished difference Result 4247 states and 6094 transitions. [2022-10-15 21:15:34,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:15:34,925 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 36 [2022-10-15 21:15:34,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:15:34,996 INFO L225 Difference]: With dead ends: 4247 [2022-10-15 21:15:34,997 INFO L226 Difference]: Without dead ends: 2842 [2022-10-15 21:15:35,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:15:35,032 INFO L413 NwaCegarLoop]: 2210 mSDtfsCounter, 2259 mSDsluCounter, 2184 mSDsCounter, 0 mSdLazyCounter, 1588 mSolverCounterSat, 709 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2469 SdHoareTripleChecker+Valid, 4394 SdHoareTripleChecker+Invalid, 2297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 709 IncrementalHoareTripleChecker+Valid, 1588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-10-15 21:15:35,034 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2469 Valid, 4394 Invalid, 2297 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [709 Valid, 1588 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2022-10-15 21:15:35,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2842 states. [2022-10-15 21:15:35,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2842 to 2456. [2022-10-15 21:15:35,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2456 states, 1774 states have (on average 1.4222096956031567) internal successors, (2523), 1888 states have internal predecessors, (2523), 492 states have call successors, (492), 96 states have call predecessors, (492), 96 states have return successors, (492), 489 states have call predecessors, (492), 492 states have call successors, (492) [2022-10-15 21:15:35,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2456 states to 2456 states and 3507 transitions. [2022-10-15 21:15:35,623 INFO L78 Accepts]: Start accepts. Automaton has 2456 states and 3507 transitions. Word has length 36 [2022-10-15 21:15:35,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:15:35,625 INFO L495 AbstractCegarLoop]: Abstraction has 2456 states and 3507 transitions. [2022-10-15 21:15:35,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:15:35,626 INFO L276 IsEmpty]: Start isEmpty. Operand 2456 states and 3507 transitions. [2022-10-15 21:15:35,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-15 21:15:35,641 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:15:35,641 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:15:35,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:15:35,642 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [dlci_to_q922Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, dlci_to_q922Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 107 more)] === [2022-10-15 21:15:35,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:15:35,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1198358434, now seen corresponding path program 1 times [2022-10-15 21:15:35,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:15:35,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891186306] [2022-10-15 21:15:35,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:15:35,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:15:35,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:35,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:15:35,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:35,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:15:35,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:36,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:15:36,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:36,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:15:36,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:36,027 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-15 21:15:36,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:15:36,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891186306] [2022-10-15 21:15:36,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891186306] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:15:36,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:15:36,030 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:15:36,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952452292] [2022-10-15 21:15:36,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:15:36,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:15:36,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:15:36,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:15:36,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:15:36,035 INFO L87 Difference]: Start difference. First operand 2456 states and 3507 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:15:43,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:15:43,047 INFO L93 Difference]: Finished difference Result 6374 states and 9112 transitions. [2022-10-15 21:15:43,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:15:43,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 46 [2022-10-15 21:15:43,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:15:43,090 INFO L225 Difference]: With dead ends: 6374 [2022-10-15 21:15:43,091 INFO L226 Difference]: Without dead ends: 3930 [2022-10-15 21:15:43,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:15:43,115 INFO L413 NwaCegarLoop]: 2382 mSDtfsCounter, 1252 mSDsluCounter, 2250 mSDsCounter, 0 mSdLazyCounter, 1571 mSolverCounterSat, 419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1371 SdHoareTripleChecker+Valid, 4632 SdHoareTripleChecker+Invalid, 1990 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 419 IncrementalHoareTripleChecker+Valid, 1571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-10-15 21:15:43,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1371 Valid, 4632 Invalid, 1990 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [419 Valid, 1571 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-10-15 21:15:43,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3930 states. [2022-10-15 21:15:43,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3930 to 3472. [2022-10-15 21:15:43,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3472 states, 2547 states have (on average 1.4216725559481744) internal successors, (3621), 2671 states have internal predecessors, (3621), 682 states have call successors, (682), 149 states have call predecessors, (682), 149 states have return successors, (682), 679 states have call predecessors, (682), 682 states have call successors, (682) [2022-10-15 21:15:43,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3472 states to 3472 states and 4985 transitions. [2022-10-15 21:15:43,435 INFO L78 Accepts]: Start accepts. Automaton has 3472 states and 4985 transitions. Word has length 46 [2022-10-15 21:15:43,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:15:43,436 INFO L495 AbstractCegarLoop]: Abstraction has 3472 states and 4985 transitions. [2022-10-15 21:15:43,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-10-15 21:15:43,437 INFO L276 IsEmpty]: Start isEmpty. Operand 3472 states and 4985 transitions. [2022-10-15 21:15:43,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2022-10-15 21:15:43,445 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:15:43,446 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-10-15 21:15:43,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:15:43,447 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [dlci_to_q922Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, dlci_to_q922Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 107 more)] === [2022-10-15 21:15:43,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:15:43,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1739549248, now seen corresponding path program 1 times [2022-10-15 21:15:43,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:15:43,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923181949] [2022-10-15 21:15:43,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:15:43,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:15:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:43,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:15:43,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:43,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:15:43,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:43,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:15:43,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:43,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:15:43,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:43,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 21:15:43,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:43,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-15 21:15:43,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:43,862 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-10-15 21:15:43,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:15:43,863 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923181949] [2022-10-15 21:15:43,863 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923181949] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:15:43,863 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:15:43,863 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 21:15:43,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846297803] [2022-10-15 21:15:43,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:15:43,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:15:43,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:15:43,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:15:43,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:15:43,867 INFO L87 Difference]: Start difference. First operand 3472 states and 4985 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-15 21:15:51,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:15:51,934 INFO L93 Difference]: Finished difference Result 9262 states and 13336 transitions. [2022-10-15 21:15:51,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:15:51,936 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 61 [2022-10-15 21:15:51,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:15:52,006 INFO L225 Difference]: With dead ends: 9262 [2022-10-15 21:15:52,006 INFO L226 Difference]: Without dead ends: 5802 [2022-10-15 21:15:52,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 21:15:52,057 INFO L413 NwaCegarLoop]: 2384 mSDtfsCounter, 2290 mSDsluCounter, 2270 mSDsCounter, 0 mSdLazyCounter, 1661 mSolverCounterSat, 678 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2499 SdHoareTripleChecker+Valid, 4654 SdHoareTripleChecker+Invalid, 2339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 678 IncrementalHoareTripleChecker+Valid, 1661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-10-15 21:15:52,059 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2499 Valid, 4654 Invalid, 2339 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [678 Valid, 1661 Invalid, 0 Unknown, 0 Unchecked, 7.4s Time] [2022-10-15 21:15:52,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5802 states. [2022-10-15 21:15:52,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5802 to 5118. [2022-10-15 21:15:52,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5118 states, 3792 states have (on average 1.4193037974683544) internal successors, (5382), 3932 states have internal predecessors, (5382), 1006 states have call successors, (1006), 226 states have call predecessors, (1006), 226 states have return successors, (1006), 1001 states have call predecessors, (1006), 1006 states have call successors, (1006) [2022-10-15 21:15:52,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5118 states to 5118 states and 7394 transitions. [2022-10-15 21:15:52,685 INFO L78 Accepts]: Start accepts. Automaton has 5118 states and 7394 transitions. Word has length 61 [2022-10-15 21:15:52,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:15:52,687 INFO L495 AbstractCegarLoop]: Abstraction has 5118 states and 7394 transitions. [2022-10-15 21:15:52,687 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-10-15 21:15:52,688 INFO L276 IsEmpty]: Start isEmpty. Operand 5118 states and 7394 transitions. [2022-10-15 21:15:52,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-10-15 21:15:52,690 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:15:52,690 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:15:52,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:15:52,691 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [dlci_to_q922Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, dlci_to_q922Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 107 more)] === [2022-10-15 21:15:52,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:15:52,692 INFO L85 PathProgramCache]: Analyzing trace with hash 1470864839, now seen corresponding path program 1 times [2022-10-15 21:15:52,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:15:52,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244955019] [2022-10-15 21:15:52,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:15:52,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:15:52,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:52,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:15:52,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:52,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:15:52,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:52,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:15:52,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:53,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:15:53,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:53,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-10-15 21:15:53,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:53,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2022-10-15 21:15:53,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:53,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-15 21:15:53,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:53,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-10-15 21:15:53,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:53,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-15 21:15:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:53,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2022-10-15 21:15:53,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:53,122 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-10-15 21:15:53,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:15:53,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244955019] [2022-10-15 21:15:53,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244955019] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:15:53,124 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:15:53,124 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:15:53,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838545170] [2022-10-15 21:15:53,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:15:53,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:15:53,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:15:53,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:15:53,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:15:53,133 INFO L87 Difference]: Start difference. First operand 5118 states and 7394 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-15 21:15:58,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:15:58,105 INFO L93 Difference]: Finished difference Result 6838 states and 10111 transitions. [2022-10-15 21:15:58,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 21:15:58,107 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 67 [2022-10-15 21:15:58,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:15:58,192 INFO L225 Difference]: With dead ends: 6838 [2022-10-15 21:15:58,193 INFO L226 Difference]: Without dead ends: 6836 [2022-10-15 21:15:58,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:15:58,214 INFO L413 NwaCegarLoop]: 2342 mSDtfsCounter, 762 mSDsluCounter, 2534 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 898 SdHoareTripleChecker+Valid, 4876 SdHoareTripleChecker+Invalid, 1665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2022-10-15 21:15:58,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [898 Valid, 4876 Invalid, 1665 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [285 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2022-10-15 21:15:58,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6836 states. [2022-10-15 21:15:58,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6836 to 5154. [2022-10-15 21:15:58,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5154 states, 3822 states have (on average 1.4175824175824177) internal successors, (5418), 3962 states have internal predecessors, (5418), 1012 states have call successors, (1012), 226 states have call predecessors, (1012), 226 states have return successors, (1012), 1007 states have call predecessors, (1012), 1012 states have call successors, (1012) [2022-10-15 21:15:58,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5154 states to 5154 states and 7442 transitions. [2022-10-15 21:15:58,921 INFO L78 Accepts]: Start accepts. Automaton has 5154 states and 7442 transitions. Word has length 67 [2022-10-15 21:15:58,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:15:58,922 INFO L495 AbstractCegarLoop]: Abstraction has 5154 states and 7442 transitions. [2022-10-15 21:15:58,923 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-15 21:15:58,923 INFO L276 IsEmpty]: Start isEmpty. Operand 5154 states and 7442 transitions. [2022-10-15 21:15:58,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-10-15 21:15:58,926 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:15:58,927 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2022-10-15 21:15:58,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:15:58,928 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [dlci_to_q922Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, dlci_to_q922Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_set_removeErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 107 more)] === [2022-10-15 21:15:58,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:15:58,929 INFO L85 PathProgramCache]: Analyzing trace with hash 1777937337, now seen corresponding path program 1 times [2022-10-15 21:15:58,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:15:58,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68392867] [2022-10-15 21:15:58,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:15:58,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:15:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:59,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-15 21:15:59,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:59,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-15 21:15:59,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:59,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-10-15 21:15:59,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:59,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-15 21:15:59,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:59,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-10-15 21:15:59,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:59,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-10-15 21:15:59,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:15:59,248 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-10-15 21:15:59,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:15:59,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68392867] [2022-10-15 21:15:59,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68392867] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:15:59,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:15:59,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:15:59,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017725456] [2022-10-15 21:15:59,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:15:59,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:15:59,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:15:59,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:15:59,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:15:59,252 INFO L87 Difference]: Start difference. First operand 5154 states and 7442 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6)