./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_mm.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_mm.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 34ead930b8137fdc7abb50622ed73bdb27f2c7ae71d0ef3b9d44cfc9bee95799 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 02:10:08,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 02:10:08,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 02:10:08,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 02:10:08,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 02:10:08,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 02:10:08,926 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 02:10:08,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 02:10:08,933 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 02:10:08,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 02:10:08,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 02:10:08,941 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 02:10:08,941 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 02:10:08,943 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 02:10:08,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 02:10:08,948 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 02:10:08,949 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 02:10:08,951 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 02:10:08,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 02:10:08,959 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 02:10:08,962 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 02:10:08,963 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 02:10:08,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 02:10:08,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 02:10:08,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 02:10:08,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 02:10:08,974 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 02:10:08,975 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 02:10:08,976 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 02:10:08,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 02:10:08,996 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 02:10:08,996 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 02:10:08,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 02:10:08,998 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 02:10:08,998 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 02:10:08,999 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 02:10:08,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 02:10:09,000 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 02:10:09,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 02:10:09,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 02:10:09,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 02:10:09,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 02:10:09,004 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 02:10:09,039 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 02:10:09,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 02:10:09,040 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 02:10:09,040 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 02:10:09,041 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 02:10:09,041 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 02:10:09,042 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 02:10:09,042 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 02:10:09,043 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 02:10:09,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 02:10:09,044 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 02:10:09,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 02:10:09,045 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 02:10:09,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 02:10:09,045 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 02:10:09,045 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 02:10:09,045 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 02:10:09,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 02:10:09,046 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 02:10:09,046 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 02:10:09,046 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 02:10:09,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 02:10:09,047 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 02:10:09,047 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 02:10:09,047 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 02:10:09,047 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 02:10:09,048 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 02:10:09,048 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 02:10:09,048 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 02:10:09,048 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 02:10:09,049 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34ead930b8137fdc7abb50622ed73bdb27f2c7ae71d0ef3b9d44cfc9bee95799 [2022-07-14 02:10:09,344 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 02:10:09,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 02:10:09,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 02:10:09,372 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 02:10:09,373 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 02:10:09,375 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_mm.ko-entry_point.cil.out.i [2022-07-14 02:10:09,450 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aafedaefc/86b4b4545ff44522a51485315cf68359/FLAGefc3d1948 [2022-07-14 02:10:10,177 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 02:10:10,178 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_mm.ko-entry_point.cil.out.i [2022-07-14 02:10:10,210 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aafedaefc/86b4b4545ff44522a51485315cf68359/FLAGefc3d1948 [2022-07-14 02:10:10,307 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aafedaefc/86b4b4545ff44522a51485315cf68359 [2022-07-14 02:10:10,309 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 02:10:10,310 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 02:10:10,314 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 02:10:10,314 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 02:10:10,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 02:10:10,319 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:10:10" (1/1) ... [2022-07-14 02:10:10,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c16bc51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:10, skipping insertion in model container [2022-07-14 02:10:10,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 02:10:10" (1/1) ... [2022-07-14 02:10:10,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 02:10:10,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 02:10:11,636 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_mm.ko-entry_point.cil.out.i[145794,145807] [2022-07-14 02:10:11,697 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 02:10:11,730 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 02:10:11,926 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-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_mm.ko-entry_point.cil.out.i[145794,145807] [2022-07-14 02:10:11,935 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 02:10:11,982 INFO L208 MainTranslator]: Completed translation [2022-07-14 02:10:11,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:11 WrapperNode [2022-07-14 02:10:11,984 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 02:10:11,986 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 02:10:11,986 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 02:10:11,986 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 02:10:11,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:11" (1/1) ... [2022-07-14 02:10:12,055 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:11" (1/1) ... [2022-07-14 02:10:12,172 INFO L137 Inliner]: procedures = 138, calls = 843, calls flagged for inlining = 61, calls inlined = 52, statements flattened = 1733 [2022-07-14 02:10:12,173 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 02:10:12,174 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 02:10:12,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 02:10:12,175 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 02:10:12,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:11" (1/1) ... [2022-07-14 02:10:12,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:11" (1/1) ... [2022-07-14 02:10:12,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:11" (1/1) ... [2022-07-14 02:10:12,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:11" (1/1) ... [2022-07-14 02:10:12,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:11" (1/1) ... [2022-07-14 02:10:12,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:11" (1/1) ... [2022-07-14 02:10:12,276 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:11" (1/1) ... [2022-07-14 02:10:12,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 02:10:12,305 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 02:10:12,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 02:10:12,306 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 02:10:12,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:11" (1/1) ... [2022-07-14 02:10:12,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 02:10:12,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 02:10:12,345 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) [2022-07-14 02:10:12,365 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 [2022-07-14 02:10:12,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-14 02:10:12,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 02:10:12,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 02:10:12,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 02:10:12,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 02:10:12,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 02:10:12,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-14 02:10:12,389 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-14 02:10:12,389 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-14 02:10:12,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-14 02:10:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 02:10:12,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 02:10:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_dealloc_kioc [2022-07-14 02:10:12,390 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_dealloc_kioc [2022-07-14 02:10:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-14 02:10:12,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-14 02:10:12,390 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_attach_buf [2022-07-14 02:10:12,391 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_attach_buf [2022-07-14 02:10:12,391 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2022-07-14 02:10:12,391 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2022-07-14 02:10:12,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 02:10:12,391 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-14 02:10:12,391 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-14 02:10:12,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 02:10:12,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 02:10:12,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 02:10:12,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 02:10:12,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 02:10:12,392 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 02:10:12,392 INFO L130 BoogieDeclarations]: Found specification of procedure mraid_mm_ioctl [2022-07-14 02:10:12,392 INFO L138 BoogieDeclarations]: Found implementation of procedure mraid_mm_ioctl [2022-07-14 02:10:12,392 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-14 02:10:12,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-14 02:10:12,393 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 02:10:12,393 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 02:10:12,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 02:10:12,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-14 02:10:12,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-14 02:10:12,394 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-14 02:10:12,394 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-14 02:10:12,394 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-14 02:10:12,394 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-14 02:10:12,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 02:10:12,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 02:10:12,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 02:10:12,394 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-14 02:10:12,395 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-14 02:10:12,395 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-14 02:10:12,395 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2022-07-14 02:10:12,395 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2022-07-14 02:10:12,395 INFO L130 BoogieDeclarations]: Found specification of procedure up [2022-07-14 02:10:12,396 INFO L138 BoogieDeclarations]: Found implementation of procedure up [2022-07-14 02:10:12,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 02:10:12,396 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-14 02:10:12,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-14 02:10:12,397 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-14 02:10:12,397 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-14 02:10:12,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 02:10:12,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 02:10:12,399 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-07-14 02:10:12,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-07-14 02:10:12,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 02:10:12,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-14 02:10:12,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 02:10:12,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 02:10:12,399 INFO L130 BoogieDeclarations]: Found specification of procedure dma_pool_free [2022-07-14 02:10:12,400 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_pool_free [2022-07-14 02:10:12,777 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 02:10:12,780 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 02:10:13,090 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 02:10:14,460 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 02:10:14,469 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 02:10:14,469 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 02:10:14,472 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:10:14 BoogieIcfgContainer [2022-07-14 02:10:14,472 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 02:10:14,473 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 02:10:14,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 02:10:14,477 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 02:10:14,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 02:10:10" (1/3) ... [2022-07-14 02:10:14,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6345510c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:10:14, skipping insertion in model container [2022-07-14 02:10:14,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 02:10:11" (2/3) ... [2022-07-14 02:10:14,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6345510c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 02:10:14, skipping insertion in model container [2022-07-14 02:10:14,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 02:10:14" (3/3) ... [2022-07-14 02:10:14,480 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--scsi--megaraid--megaraid_mm.ko-entry_point.cil.out.i [2022-07-14 02:10:14,494 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 02:10:14,494 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 02:10:14,548 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 02:10:14,553 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=PETRI_NET, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3f42bf83, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4a07e73f [2022-07-14 02:10:14,554 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 02:10:14,559 INFO L276 IsEmpty]: Start isEmpty. Operand has 403 states, 310 states have (on average 1.403225806451613) internal successors, (435), 318 states have internal predecessors, (435), 67 states have call successors, (67), 25 states have call predecessors, (67), 24 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-07-14 02:10:14,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-07-14 02:10:14,585 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:10:14,586 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:10:14,587 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:10:14,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:10:14,591 INFO L85 PathProgramCache]: Analyzing trace with hash -2058027480, now seen corresponding path program 1 times [2022-07-14 02:10:14,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:10:14,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956584708] [2022-07-14 02:10:14,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:10:14,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:10:14,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:15,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:10:15,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:15,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:15,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 02:10:15,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:15,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:15,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 02:10:15,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:15,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:15,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:15,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 02:10:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:15,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:15,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:15,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 02:10:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:15,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:15,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:15,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2022-07-14 02:10:15,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:15,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:15,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:15,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:15,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:15,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 02:10:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:15,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:15,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:15,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:15,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:15,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-14 02:10:15,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:15,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 02:10:15,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:15,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 02:10:15,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:15,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-14 02:10:15,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:15,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:15,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:15,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:15,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-14 02:10:15,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:15,443 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-07-14 02:10:15,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:10:15,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956584708] [2022-07-14 02:10:15,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956584708] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:10:15,447 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:10:15,447 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 02:10:15,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [845696692] [2022-07-14 02:10:15,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:10:15,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 02:10:15,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:10:15,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 02:10:15,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 02:10:15,486 INFO L87 Difference]: Start difference. First operand has 403 states, 310 states have (on average 1.403225806451613) internal successors, (435), 318 states have internal predecessors, (435), 67 states have call successors, (67), 25 states have call predecessors, (67), 24 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 02:10:17,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:10:17,295 INFO L93 Difference]: Finished difference Result 815 states and 1172 transitions. [2022-07-14 02:10:17,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 02:10:17,300 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 178 [2022-07-14 02:10:17,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:10:17,313 INFO L225 Difference]: With dead ends: 815 [2022-07-14 02:10:17,313 INFO L226 Difference]: Without dead ends: 416 [2022-07-14 02:10:17,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 02:10:17,325 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 212 mSDsluCounter, 560 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 1097 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-14 02:10:17,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 1097 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-14 02:10:17,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2022-07-14 02:10:17,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 387. [2022-07-14 02:10:17,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 299 states have (on average 1.3846153846153846) internal successors, (414), 302 states have internal predecessors, (414), 64 states have call successors, (64), 24 states have call predecessors, (64), 23 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2022-07-14 02:10:17,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 541 transitions. [2022-07-14 02:10:17,400 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 541 transitions. Word has length 178 [2022-07-14 02:10:17,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:10:17,401 INFO L495 AbstractCegarLoop]: Abstraction has 387 states and 541 transitions. [2022-07-14 02:10:17,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 2 states have internal predecessors, (82), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 02:10:17,401 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 541 transitions. [2022-07-14 02:10:17,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-07-14 02:10:17,408 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:10:17,408 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:10:17,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 02:10:17,409 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:10:17,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:10:17,409 INFO L85 PathProgramCache]: Analyzing trace with hash -26593390, now seen corresponding path program 1 times [2022-07-14 02:10:17,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:10:17,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515112593] [2022-07-14 02:10:17,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:10:17,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:10:17,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:17,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:10:17,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:17,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:17,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:17,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 02:10:17,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:17,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:17,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:17,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 02:10:17,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:17,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:17,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:17,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 02:10:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:17,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:17,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:17,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 02:10:17,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:17,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:17,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:17,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-14 02:10:17,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:17,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:17,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:17,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:17,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2022-07-14 02:10:17,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:17,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:17,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:17,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:17,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:17,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-14 02:10:17,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:17,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-14 02:10:17,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:17,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-14 02:10:17,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:17,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-14 02:10:17,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:17,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:17,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:17,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:17,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-14 02:10:17,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:17,722 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-07-14 02:10:17,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:10:17,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515112593] [2022-07-14 02:10:17,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515112593] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:10:17,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:10:17,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 02:10:17,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696685990] [2022-07-14 02:10:17,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:10:17,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 02:10:17,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:10:17,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 02:10:17,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 02:10:17,727 INFO L87 Difference]: Start difference. First operand 387 states and 541 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 02:10:19,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:10:19,008 INFO L93 Difference]: Finished difference Result 818 states and 1156 transitions. [2022-07-14 02:10:19,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 02:10:19,008 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 175 [2022-07-14 02:10:19,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:10:19,013 INFO L225 Difference]: With dead ends: 818 [2022-07-14 02:10:19,013 INFO L226 Difference]: Without dead ends: 449 [2022-07-14 02:10:19,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 02:10:19,016 INFO L413 NwaCegarLoop]: 519 mSDtfsCounter, 275 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 1417 SdHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-14 02:10:19,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 1417 Invalid, 592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-14 02:10:19,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2022-07-14 02:10:19,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 414. [2022-07-14 02:10:19,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 323 states have (on average 1.3869969040247678) internal successors, (448), 326 states have internal predecessors, (448), 65 states have call successors, (65), 26 states have call predecessors, (65), 25 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-07-14 02:10:19,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 577 transitions. [2022-07-14 02:10:19,067 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 577 transitions. Word has length 175 [2022-07-14 02:10:19,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:10:19,068 INFO L495 AbstractCegarLoop]: Abstraction has 414 states and 577 transitions. [2022-07-14 02:10:19,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 3 states have internal predecessors, (79), 2 states have call successors, (19), 4 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-14 02:10:19,068 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 577 transitions. [2022-07-14 02:10:19,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-07-14 02:10:19,072 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:10:19,073 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:10:19,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 02:10:19,073 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:10:19,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:10:19,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1359871746, now seen corresponding path program 1 times [2022-07-14 02:10:19,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:10:19,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [483178726] [2022-07-14 02:10:19,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:10:19,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:10:19,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:19,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:10:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:19,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:19,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:19,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 02:10:19,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:19,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:19,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:19,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 02:10:19,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:19,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:19,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:19,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 02:10:19,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:19,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:19,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:19,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 02:10:19,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:19,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:19,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:19,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:10:19,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:19,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:19,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:19,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:10:19,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:19,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 02:10:19,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:19,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:19,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:19,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:10:19,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:19,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-14 02:10:19,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:19,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:19,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:19,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:19,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:19,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-14 02:10:19,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:19,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:19,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:19,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:19,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:19,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-14 02:10:19,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:19,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-14 02:10:19,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:19,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-14 02:10:19,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:19,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-14 02:10:19,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:19,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:19,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:19,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:19,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:19,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-14 02:10:19,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:19,567 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-07-14 02:10:19,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:10:19,568 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [483178726] [2022-07-14 02:10:19,568 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [483178726] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:10:19,569 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:10:19,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-14 02:10:19,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299705691] [2022-07-14 02:10:19,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:10:19,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 02:10:19,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:10:19,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 02:10:19,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-07-14 02:10:19,571 INFO L87 Difference]: Start difference. First operand 414 states and 577 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 5 states have internal predecessors, (108), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-14 02:10:20,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:10:20,909 INFO L93 Difference]: Finished difference Result 844 states and 1190 transitions. [2022-07-14 02:10:20,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 02:10:20,910 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 5 states have internal predecessors, (108), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 225 [2022-07-14 02:10:20,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:10:20,916 INFO L225 Difference]: With dead ends: 844 [2022-07-14 02:10:20,916 INFO L226 Difference]: Without dead ends: 446 [2022-07-14 02:10:20,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-07-14 02:10:20,924 INFO L413 NwaCegarLoop]: 512 mSDtfsCounter, 349 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 339 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 2182 SdHoareTripleChecker+Invalid, 1121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 339 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-14 02:10:20,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 2182 Invalid, 1121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [339 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-14 02:10:20,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2022-07-14 02:10:20,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 412. [2022-07-14 02:10:20,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 321 states have (on average 1.3800623052959502) internal successors, (443), 324 states have internal predecessors, (443), 65 states have call successors, (65), 26 states have call predecessors, (65), 25 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-07-14 02:10:20,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 572 transitions. [2022-07-14 02:10:20,987 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 572 transitions. Word has length 225 [2022-07-14 02:10:20,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:10:20,989 INFO L495 AbstractCegarLoop]: Abstraction has 412 states and 572 transitions. [2022-07-14 02:10:20,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 5 states have internal predecessors, (108), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-14 02:10:20,990 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 572 transitions. [2022-07-14 02:10:20,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2022-07-14 02:10:20,995 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:10:20,995 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:10:20,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 02:10:21,001 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:10:21,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:10:21,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1189633945, now seen corresponding path program 1 times [2022-07-14 02:10:21,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:10:21,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405099591] [2022-07-14 02:10:21,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:10:21,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:10:21,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:21,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:10:21,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:21,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:21,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:21,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 02:10:21,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:21,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:21,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:21,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 02:10:21,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:21,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:21,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:21,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 02:10:21,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:21,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:21,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:21,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 02:10:21,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:21,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:21,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:21,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:10:21,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:21,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:21,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:21,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:10:21,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:21,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 02:10:21,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:21,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:21,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:21,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:10:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:21,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 02:10:21,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:21,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-14 02:10:21,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:21,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:21,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:21,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:21,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-14 02:10:21,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:21,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:21,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:21,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:21,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:21,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2022-07-14 02:10:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:21,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-14 02:10:21,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:21,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-14 02:10:21,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:21,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-14 02:10:21,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:21,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:21,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:21,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:21,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:21,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 02:10:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:21,375 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-07-14 02:10:21,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:10:21,376 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405099591] [2022-07-14 02:10:21,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405099591] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:10:21,376 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:10:21,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 02:10:21,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638103128] [2022-07-14 02:10:21,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:10:21,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 02:10:21,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:10:21,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 02:10:21,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 02:10:21,381 INFO L87 Difference]: Start difference. First operand 412 states and 572 transitions. Second operand has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-14 02:10:24,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:10:24,101 INFO L93 Difference]: Finished difference Result 881 states and 1239 transitions. [2022-07-14 02:10:24,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-14 02:10:24,101 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 229 [2022-07-14 02:10:24,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:10:24,105 INFO L225 Difference]: With dead ends: 881 [2022-07-14 02:10:24,105 INFO L226 Difference]: Without dead ends: 491 [2022-07-14 02:10:24,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2022-07-14 02:10:24,107 INFO L413 NwaCegarLoop]: 540 mSDtfsCounter, 347 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 262 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 1964 SdHoareTripleChecker+Invalid, 1093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 262 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-14 02:10:24,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 1964 Invalid, 1093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [262 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-14 02:10:24,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2022-07-14 02:10:24,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 454. [2022-07-14 02:10:24,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 359 states have (on average 1.3788300835654597) internal successors, (495), 362 states have internal predecessors, (495), 66 states have call successors, (66), 29 states have call predecessors, (66), 28 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-07-14 02:10:24,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 626 transitions. [2022-07-14 02:10:24,126 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 626 transitions. Word has length 229 [2022-07-14 02:10:24,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:10:24,127 INFO L495 AbstractCegarLoop]: Abstraction has 454 states and 626 transitions. [2022-07-14 02:10:24,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.714285714285714) internal successors, (110), 3 states have internal predecessors, (110), 3 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2022-07-14 02:10:24,127 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 626 transitions. [2022-07-14 02:10:24,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2022-07-14 02:10:24,131 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:10:24,131 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:10:24,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 02:10:24,132 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:10:24,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:10:24,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1373571759, now seen corresponding path program 1 times [2022-07-14 02:10:24,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:10:24,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205631745] [2022-07-14 02:10:24,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:10:24,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:10:24,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:24,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:10:24,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:24,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:24,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:24,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 02:10:24,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:24,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:24,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:24,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 02:10:24,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:24,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:24,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:24,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 02:10:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:24,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:24,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:24,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 02:10:24,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:24,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:24,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:10:24,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:24,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:24,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:24,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:10:24,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:24,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 02:10:24,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:24,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:24,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:10:24,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:24,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 02:10:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:24,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-14 02:10:24,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:24,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:24,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:24,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:24,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:24,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-14 02:10:24,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:24,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:24,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:24,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:24,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:24,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-14 02:10:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:24,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-14 02:10:24,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:24,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-14 02:10:24,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:24,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-14 02:10:24,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:24,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:24,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:24,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:24,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:24,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-14 02:10:24,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:24,512 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2022-07-14 02:10:24,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:10:24,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205631745] [2022-07-14 02:10:24,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205631745] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:10:24,513 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:10:24,513 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 02:10:24,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534531452] [2022-07-14 02:10:24,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:10:24,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 02:10:24,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:10:24,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 02:10:24,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 02:10:24,516 INFO L87 Difference]: Start difference. First operand 454 states and 626 transitions. Second operand has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-14 02:10:26,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:10:26,867 INFO L93 Difference]: Finished difference Result 1033 states and 1452 transitions. [2022-07-14 02:10:26,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 02:10:26,868 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 243 [2022-07-14 02:10:26,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:10:26,872 INFO L225 Difference]: With dead ends: 1033 [2022-07-14 02:10:26,872 INFO L226 Difference]: Without dead ends: 601 [2022-07-14 02:10:26,874 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-07-14 02:10:26,874 INFO L413 NwaCegarLoop]: 583 mSDtfsCounter, 350 mSDsluCounter, 1624 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 2207 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-14 02:10:26,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 2207 Invalid, 1067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-14 02:10:26,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2022-07-14 02:10:26,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 455. [2022-07-14 02:10:26,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 360 states have (on average 1.3777777777777778) internal successors, (496), 363 states have internal predecessors, (496), 66 states have call successors, (66), 29 states have call predecessors, (66), 28 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-07-14 02:10:26,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 627 transitions. [2022-07-14 02:10:26,920 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 627 transitions. Word has length 243 [2022-07-14 02:10:26,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:10:26,922 INFO L495 AbstractCegarLoop]: Abstraction has 455 states and 627 transitions. [2022-07-14 02:10:26,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-14 02:10:26,922 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 627 transitions. [2022-07-14 02:10:26,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-07-14 02:10:26,926 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:10:26,926 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:10:26,926 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 02:10:26,926 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:10:26,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:10:26,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1644980262, now seen corresponding path program 1 times [2022-07-14 02:10:26,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:10:26,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375646700] [2022-07-14 02:10:26,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:10:26,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:10:27,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:27,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:10:27,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:27,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:27,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:27,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 02:10:27,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:27,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:27,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:27,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 02:10:27,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:27,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:27,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:27,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 02:10:27,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:27,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:27,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:27,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 02:10:27,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:27,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:27,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:27,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:10:27,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:27,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:27,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:27,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:10:27,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:27,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 02:10:27,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:27,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:27,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:27,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:10:27,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:27,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 02:10:27,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:27,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-14 02:10:27,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:27,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:27,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:27,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:27,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:27,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-14 02:10:27,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:27,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:27,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:27,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:27,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-14 02:10:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:27,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-14 02:10:27,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:27,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-07-14 02:10:27,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:27,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-14 02:10:27,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:27,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:27,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:27,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:27,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:27,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-14 02:10:27,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:27,321 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2022-07-14 02:10:27,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:10:27,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375646700] [2022-07-14 02:10:27,322 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375646700] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:10:27,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:10:27,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 02:10:27,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610099257] [2022-07-14 02:10:27,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:10:27,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 02:10:27,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:10:27,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 02:10:27,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 02:10:27,324 INFO L87 Difference]: Start difference. First operand 455 states and 627 transitions. Second operand has 8 states, 8 states have (on average 14.875) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-14 02:10:30,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:10:30,104 INFO L93 Difference]: Finished difference Result 926 states and 1293 transitions. [2022-07-14 02:10:30,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 02:10:30,105 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 247 [2022-07-14 02:10:30,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:10:30,108 INFO L225 Difference]: With dead ends: 926 [2022-07-14 02:10:30,108 INFO L226 Difference]: Without dead ends: 493 [2022-07-14 02:10:30,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-07-14 02:10:30,111 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 277 mSDsluCounter, 1749 mSDsCounter, 0 mSdLazyCounter, 955 mSolverCounterSat, 248 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 283 SdHoareTripleChecker+Valid, 2258 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 248 IncrementalHoareTripleChecker+Valid, 955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-14 02:10:30,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [283 Valid, 2258 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [248 Valid, 955 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-14 02:10:30,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2022-07-14 02:10:30,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 457. [2022-07-14 02:10:30,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 457 states, 362 states have (on average 1.3756906077348066) internal successors, (498), 365 states have internal predecessors, (498), 66 states have call successors, (66), 29 states have call predecessors, (66), 28 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-07-14 02:10:30,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 629 transitions. [2022-07-14 02:10:30,140 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 629 transitions. Word has length 247 [2022-07-14 02:10:30,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:10:30,140 INFO L495 AbstractCegarLoop]: Abstraction has 457 states and 629 transitions. [2022-07-14 02:10:30,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.875) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2022-07-14 02:10:30,141 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 629 transitions. [2022-07-14 02:10:30,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-07-14 02:10:30,144 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:10:30,145 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:10:30,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 02:10:30,145 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:10:30,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:10:30,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1720055588, now seen corresponding path program 1 times [2022-07-14 02:10:30,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:10:30,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411014712] [2022-07-14 02:10:30,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:10:30,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:10:30,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:10:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:30,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 02:10:30,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:30,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 02:10:30,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:30,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 02:10:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:30,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 02:10:30,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:30,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:10:30,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:30,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:10:30,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 02:10:30,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:30,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:10:30,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 02:10:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-14 02:10:30,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:30,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:30,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-14 02:10:30,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:30,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-14 02:10:30,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:30,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-14 02:10:30,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-14 02:10:30,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 02:10:30,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-07-14 02:10:30,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:30,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:30,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-14 02:10:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:30,549 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2022-07-14 02:10:30,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:10:30,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411014712] [2022-07-14 02:10:30,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [411014712] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:10:30,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:10:30,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 02:10:30,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268153433] [2022-07-14 02:10:30,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:10:30,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 02:10:30,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:10:30,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 02:10:30,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 02:10:30,553 INFO L87 Difference]: Start difference. First operand 457 states and 629 transitions. Second operand has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 02:10:31,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:10:31,823 INFO L93 Difference]: Finished difference Result 927 states and 1293 transitions. [2022-07-14 02:10:31,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 02:10:31,823 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 266 [2022-07-14 02:10:31,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:10:31,827 INFO L225 Difference]: With dead ends: 927 [2022-07-14 02:10:31,827 INFO L226 Difference]: Without dead ends: 492 [2022-07-14 02:10:31,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-07-14 02:10:31,830 INFO L413 NwaCegarLoop]: 509 mSDtfsCounter, 342 mSDsluCounter, 898 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 329 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 1407 SdHoareTripleChecker+Invalid, 767 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 329 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-14 02:10:31,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 1407 Invalid, 767 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [329 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-14 02:10:31,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2022-07-14 02:10:31,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 458. [2022-07-14 02:10:31,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 363 states have (on average 1.3746556473829201) internal successors, (499), 366 states have internal predecessors, (499), 66 states have call successors, (66), 29 states have call predecessors, (66), 28 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-07-14 02:10:31,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 630 transitions. [2022-07-14 02:10:31,849 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 630 transitions. Word has length 266 [2022-07-14 02:10:31,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:10:31,850 INFO L495 AbstractCegarLoop]: Abstraction has 458 states and 630 transitions. [2022-07-14 02:10:31,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.428571428571427) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 02:10:31,851 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 630 transitions. [2022-07-14 02:10:31,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-07-14 02:10:31,854 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:10:31,855 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:10:31,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-14 02:10:31,855 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:10:31,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:10:31,856 INFO L85 PathProgramCache]: Analyzing trace with hash -519884651, now seen corresponding path program 1 times [2022-07-14 02:10:31,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:10:31,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768733504] [2022-07-14 02:10:31,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:10:31,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:10:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:10:32,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:32,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 02:10:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:32,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 02:10:32,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:32,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 02:10:32,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:32,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 02:10:32,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:32,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:10:32,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:32,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:10:32,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 02:10:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:32,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:10:32,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 02:10:32,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-14 02:10:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:32,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:32,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-14 02:10:32,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:32,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:32,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-14 02:10:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:32,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-14 02:10:32,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-14 02:10:32,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-14 02:10:32,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-14 02:10:32,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-07-14 02:10:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:32,242 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2022-07-14 02:10:32,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:10:32,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768733504] [2022-07-14 02:10:32,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768733504] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:10:32,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:10:32,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 02:10:32,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410431078] [2022-07-14 02:10:32,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:10:32,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 02:10:32,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:10:32,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 02:10:32,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 02:10:32,249 INFO L87 Difference]: Start difference. First operand 458 states and 630 transitions. Second operand has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 02:10:34,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:10:34,157 INFO L93 Difference]: Finished difference Result 942 states and 1319 transitions. [2022-07-14 02:10:34,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 02:10:34,158 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 262 [2022-07-14 02:10:34,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:10:34,162 INFO L225 Difference]: With dead ends: 942 [2022-07-14 02:10:34,162 INFO L226 Difference]: Without dead ends: 506 [2022-07-14 02:10:34,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-07-14 02:10:34,165 INFO L413 NwaCegarLoop]: 512 mSDtfsCounter, 359 mSDsluCounter, 905 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 343 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 1417 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 343 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-14 02:10:34,165 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 1417 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [343 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-14 02:10:34,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2022-07-14 02:10:34,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 459. [2022-07-14 02:10:34,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 364 states have (on average 1.3736263736263736) internal successors, (500), 367 states have internal predecessors, (500), 66 states have call successors, (66), 29 states have call predecessors, (66), 28 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-07-14 02:10:34,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 631 transitions. [2022-07-14 02:10:34,185 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 631 transitions. Word has length 262 [2022-07-14 02:10:34,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:10:34,186 INFO L495 AbstractCegarLoop]: Abstraction has 459 states and 631 transitions. [2022-07-14 02:10:34,186 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.142857142857142) internal successors, (120), 3 states have internal predecessors, (120), 2 states have call successors, (25), 6 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 02:10:34,186 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 631 transitions. [2022-07-14 02:10:34,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2022-07-14 02:10:34,190 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:10:34,191 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:10:34,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-14 02:10:34,191 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:10:34,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:10:34,192 INFO L85 PathProgramCache]: Analyzing trace with hash -681852628, now seen corresponding path program 1 times [2022-07-14 02:10:34,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:10:34,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148494100] [2022-07-14 02:10:34,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:10:34,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:10:34,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:10:34,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 02:10:34,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:34,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 02:10:34,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:34,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 02:10:34,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:34,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 02:10:34,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:10:34,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:34,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:10:34,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 02:10:34,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:34,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:10:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 02:10:34,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-14 02:10:34,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:34,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:34,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-14 02:10:34,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:34,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:34,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-14 02:10:34,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:34,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:34,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-14 02:10:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-14 02:10:34,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-14 02:10:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-14 02:10:34,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:34,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-14 02:10:34,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:34,544 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2022-07-14 02:10:34,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:10:34,544 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148494100] [2022-07-14 02:10:34,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148494100] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 02:10:34,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774195037] [2022-07-14 02:10:34,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:10:34,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:10:34,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 02:10:34,583 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) [2022-07-14 02:10:34,587 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 02:10:35,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 2506 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 02:10:35,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:10:35,220 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2022-07-14 02:10:35,220 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:10:35,220 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774195037] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:10:35,220 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 02:10:35,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2022-07-14 02:10:35,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747862511] [2022-07-14 02:10:35,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:10:35,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 02:10:35,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:10:35,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 02:10:35,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-14 02:10:35,223 INFO L87 Difference]: Start difference. First operand 459 states and 631 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 02:10:35,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:10:35,260 INFO L93 Difference]: Finished difference Result 904 states and 1254 transitions. [2022-07-14 02:10:35,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 02:10:35,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 266 [2022-07-14 02:10:35,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:10:35,265 INFO L225 Difference]: With dead ends: 904 [2022-07-14 02:10:35,265 INFO L226 Difference]: Without dead ends: 467 [2022-07-14 02:10:35,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 335 GetRequests, 328 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-07-14 02:10:35,270 INFO L413 NwaCegarLoop]: 534 mSDtfsCounter, 3 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 1064 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 02:10:35,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 1064 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 02:10:35,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2022-07-14 02:10:35,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 465. [2022-07-14 02:10:35,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 370 states have (on average 1.372972972972973) internal successors, (508), 373 states have internal predecessors, (508), 66 states have call successors, (66), 29 states have call predecessors, (66), 28 states have return successors, (65), 65 states have call predecessors, (65), 65 states have call successors, (65) [2022-07-14 02:10:35,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 639 transitions. [2022-07-14 02:10:35,289 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 639 transitions. Word has length 266 [2022-07-14 02:10:35,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:10:35,289 INFO L495 AbstractCegarLoop]: Abstraction has 465 states and 639 transitions. [2022-07-14 02:10:35,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 02:10:35,290 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 639 transitions. [2022-07-14 02:10:35,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2022-07-14 02:10:35,293 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:10:35,293 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:10:35,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-14 02:10:35,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:10:35,520 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:10:35,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:10:35,520 INFO L85 PathProgramCache]: Analyzing trace with hash 271552093, now seen corresponding path program 1 times [2022-07-14 02:10:35,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:10:35,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230631314] [2022-07-14 02:10:35,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:10:35,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:10:35,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:10:35,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:35,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 02:10:35,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:35,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 02:10:35,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:35,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 02:10:35,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 02:10:35,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:35,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:10:35,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:35,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:10:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 02:10:35,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:35,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:10:35,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 02:10:35,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-14 02:10:35,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:35,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-14 02:10:35,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:35,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:35,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-14 02:10:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:35,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:35,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-14 02:10:35,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-14 02:10:35,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-14 02:10:35,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-14 02:10:35,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:35,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:35,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-14 02:10:35,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-14 02:10:35,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-14 02:10:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:35,920 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-07-14 02:10:35,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:10:35,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230631314] [2022-07-14 02:10:35,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230631314] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 02:10:35,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514256504] [2022-07-14 02:10:35,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:10:35,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:10:35,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 02:10:35,923 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) [2022-07-14 02:10:35,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 02:10:36,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:36,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 2568 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 02:10:36,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:10:36,680 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2022-07-14 02:10:36,680 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 02:10:36,922 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-07-14 02:10:36,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514256504] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 02:10:36,923 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 02:10:36,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2022-07-14 02:10:36,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900835331] [2022-07-14 02:10:36,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 02:10:36,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 02:10:36,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:10:36,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 02:10:36,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-07-14 02:10:36,925 INFO L87 Difference]: Start difference. First operand 465 states and 639 transitions. Second operand has 11 states, 11 states have (on average 13.909090909090908) internal successors, (153), 7 states have internal predecessors, (153), 5 states have call successors, (45), 6 states have call predecessors, (45), 2 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2022-07-14 02:10:39,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:10:39,018 INFO L93 Difference]: Finished difference Result 990 states and 1392 transitions. [2022-07-14 02:10:39,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-14 02:10:39,030 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 13.909090909090908) internal successors, (153), 7 states have internal predecessors, (153), 5 states have call successors, (45), 6 states have call predecessors, (45), 2 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) Word has length 280 [2022-07-14 02:10:39,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:10:39,034 INFO L225 Difference]: With dead ends: 990 [2022-07-14 02:10:39,034 INFO L226 Difference]: Without dead ends: 547 [2022-07-14 02:10:39,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 642 GetRequests, 626 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2022-07-14 02:10:39,047 INFO L413 NwaCegarLoop]: 525 mSDtfsCounter, 353 mSDsluCounter, 1519 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 2044 SdHoareTripleChecker+Invalid, 1149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-14 02:10:39,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 2044 Invalid, 1149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-14 02:10:39,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2022-07-14 02:10:39,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 504. [2022-07-14 02:10:39,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 403 states have (on average 1.3672456575682381) internal successors, (551), 408 states have internal predecessors, (551), 72 states have call successors, (72), 29 states have call predecessors, (72), 28 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-07-14 02:10:39,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 694 transitions. [2022-07-14 02:10:39,067 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 694 transitions. Word has length 280 [2022-07-14 02:10:39,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:10:39,067 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 694 transitions. [2022-07-14 02:10:39,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 13.909090909090908) internal successors, (153), 7 states have internal predecessors, (153), 5 states have call successors, (45), 6 states have call predecessors, (45), 2 states have return successors, (28), 5 states have call predecessors, (28), 5 states have call successors, (28) [2022-07-14 02:10:39,068 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 694 transitions. [2022-07-14 02:10:39,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2022-07-14 02:10:39,071 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:10:39,071 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:10:39,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-14 02:10:39,293 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,SelfDestructingSolverStorable9 [2022-07-14 02:10:39,293 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:10:39,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:10:39,294 INFO L85 PathProgramCache]: Analyzing trace with hash 774960822, now seen corresponding path program 1 times [2022-07-14 02:10:39,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:10:39,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466168463] [2022-07-14 02:10:39,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:10:39,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:10:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:10:39,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:39,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 02:10:39,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 02:10:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 02:10:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:39,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 02:10:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:39,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:10:39,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:39,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:10:39,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 02:10:39,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:39,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:10:39,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 02:10:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-14 02:10:39,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:39,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:39,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-14 02:10:39,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:39,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:39,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-07-14 02:10:39,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:39,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:39,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-14 02:10:39,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-14 02:10:39,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-14 02:10:39,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-14 02:10:39,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:39,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:39,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2022-07-14 02:10:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-14 02:10:39,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-07-14 02:10:39,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:39,611 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2022-07-14 02:10:39,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:10:39,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466168463] [2022-07-14 02:10:39,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466168463] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:10:39,612 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:10:39,612 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-14 02:10:39,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98668563] [2022-07-14 02:10:39,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:10:39,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-14 02:10:39,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:10:39,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-14 02:10:39,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-07-14 02:10:39,614 INFO L87 Difference]: Start difference. First operand 504 states and 694 transitions. Second operand has 8 states, 8 states have (on average 16.375) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-14 02:10:40,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:10:40,945 INFO L93 Difference]: Finished difference Result 1019 states and 1419 transitions. [2022-07-14 02:10:40,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 02:10:40,945 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.375) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 295 [2022-07-14 02:10:40,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:10:40,948 INFO L225 Difference]: With dead ends: 1019 [2022-07-14 02:10:40,948 INFO L226 Difference]: Without dead ends: 537 [2022-07-14 02:10:40,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-07-14 02:10:40,951 INFO L413 NwaCegarLoop]: 511 mSDtfsCounter, 343 mSDsluCounter, 1285 mSDsCounter, 0 mSdLazyCounter, 606 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 1796 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 606 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-14 02:10:40,951 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 1796 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 606 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-14 02:10:40,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2022-07-14 02:10:40,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 504. [2022-07-14 02:10:40,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 504 states, 403 states have (on average 1.3672456575682381) internal successors, (551), 408 states have internal predecessors, (551), 72 states have call successors, (72), 29 states have call predecessors, (72), 28 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-07-14 02:10:40,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 694 transitions. [2022-07-14 02:10:40,969 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 694 transitions. Word has length 295 [2022-07-14 02:10:40,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:10:40,969 INFO L495 AbstractCegarLoop]: Abstraction has 504 states and 694 transitions. [2022-07-14 02:10:40,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.375) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-14 02:10:40,970 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 694 transitions. [2022-07-14 02:10:40,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2022-07-14 02:10:40,973 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:10:40,973 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:10:40,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-14 02:10:40,974 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:10:40,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:10:40,974 INFO L85 PathProgramCache]: Analyzing trace with hash 2068006878, now seen corresponding path program 1 times [2022-07-14 02:10:40,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:10:40,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770132374] [2022-07-14 02:10:40,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:10:40,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:10:41,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:10:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:41,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 02:10:41,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:41,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 02:10:41,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:41,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 02:10:41,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 02:10:41,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:41,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:10:41,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:41,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:10:41,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 02:10:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:41,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:10:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 02:10:41,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-14 02:10:41,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:41,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-14 02:10:41,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:41,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-14 02:10:41,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:41,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:41,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2022-07-14 02:10:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-14 02:10:41,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-14 02:10:41,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-14 02:10:41,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:41,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:41,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-07-14 02:10:41,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-14 02:10:41,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-14 02:10:41,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:41,382 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-07-14 02:10:41,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:10:41,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770132374] [2022-07-14 02:10:41,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770132374] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 02:10:41,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503724579] [2022-07-14 02:10:41,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:10:41,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:10:41,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 02:10:41,388 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) [2022-07-14 02:10:41,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-14 02:10:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:42,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 2588 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 02:10:42,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:10:42,175 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 6 proven. 28 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2022-07-14 02:10:42,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 02:10:42,335 INFO L134 CoverageAnalysis]: Checked inductivity of 249 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-07-14 02:10:42,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503724579] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 02:10:42,336 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 02:10:42,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 12 [2022-07-14 02:10:42,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860688007] [2022-07-14 02:10:42,336 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 02:10:42,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 02:10:42,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:10:42,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 02:10:42,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2022-07-14 02:10:42,338 INFO L87 Difference]: Start difference. First operand 504 states and 694 transitions. Second operand has 12 states, 12 states have (on average 12.833333333333334) internal successors, (154), 8 states have internal predecessors, (154), 3 states have call successors, (43), 6 states have call predecessors, (43), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-14 02:10:44,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:10:44,449 INFO L93 Difference]: Finished difference Result 1048 states and 1472 transitions. [2022-07-14 02:10:44,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-14 02:10:44,450 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.833333333333334) internal successors, (154), 8 states have internal predecessors, (154), 3 states have call successors, (43), 6 states have call predecessors, (43), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 293 [2022-07-14 02:10:44,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:10:44,459 INFO L225 Difference]: With dead ends: 1048 [2022-07-14 02:10:44,459 INFO L226 Difference]: Without dead ends: 566 [2022-07-14 02:10:44,462 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 672 GetRequests, 654 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2022-07-14 02:10:44,463 INFO L413 NwaCegarLoop]: 544 mSDtfsCounter, 383 mSDsluCounter, 1475 mSDsCounter, 0 mSdLazyCounter, 934 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 2019 SdHoareTripleChecker+Invalid, 1218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-14 02:10:44,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 2019 Invalid, 1218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 934 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-14 02:10:44,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2022-07-14 02:10:44,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 518. [2022-07-14 02:10:44,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 415 states have (on average 1.3662650602409638) internal successors, (567), 421 states have internal predecessors, (567), 74 states have call successors, (74), 29 states have call predecessors, (74), 28 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-07-14 02:10:44,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 714 transitions. [2022-07-14 02:10:44,491 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 714 transitions. Word has length 293 [2022-07-14 02:10:44,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:10:44,493 INFO L495 AbstractCegarLoop]: Abstraction has 518 states and 714 transitions. [2022-07-14 02:10:44,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.833333333333334) internal successors, (154), 8 states have internal predecessors, (154), 3 states have call successors, (43), 6 states have call predecessors, (43), 2 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2022-07-14 02:10:44,494 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 714 transitions. [2022-07-14 02:10:44,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2022-07-14 02:10:44,497 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:10:44,498 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:10:44,531 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-14 02:10:44,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:10:44,712 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:10:44,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:10:44,712 INFO L85 PathProgramCache]: Analyzing trace with hash 2009743556, now seen corresponding path program 1 times [2022-07-14 02:10:44,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:10:44,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609197609] [2022-07-14 02:10:44,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:10:44,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:10:44,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:44,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:10:44,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:44,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:44,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:44,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 02:10:44,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:44,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:44,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:44,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 02:10:44,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:44,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:44,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:44,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 02:10:44,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:44,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:44,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:44,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 02:10:44,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:44,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:44,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:44,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:10:44,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:44,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:44,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:44,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:10:44,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:44,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 02:10:45,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:45,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:45,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:45,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:10:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:45,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 02:10:45,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:45,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-14 02:10:45,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:45,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:45,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:45,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:45,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:45,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2022-07-14 02:10:45,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:45,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:45,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:45,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:45,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:45,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-07-14 02:10:45,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:45,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:45,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:45,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:45,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:45,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-14 02:10:45,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:45,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-14 02:10:45,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:45,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-14 02:10:45,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:45,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-14 02:10:45,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:45,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:45,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:45,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:45,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-14 02:10:45,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:45,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2022-07-14 02:10:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:45,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-14 02:10:45,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:45,107 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-07-14 02:10:45,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:10:45,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609197609] [2022-07-14 02:10:45,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609197609] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:10:45,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 02:10:45,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 02:10:45,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796595014] [2022-07-14 02:10:45,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:10:45,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 02:10:45,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:10:45,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 02:10:45,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 02:10:45,109 INFO L87 Difference]: Start difference. First operand 518 states and 714 transitions. Second operand has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-14 02:10:46,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:10:46,330 INFO L93 Difference]: Finished difference Result 1046 states and 1458 transitions. [2022-07-14 02:10:46,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 02:10:46,330 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 301 [2022-07-14 02:10:46,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:10:46,333 INFO L225 Difference]: With dead ends: 1046 [2022-07-14 02:10:46,334 INFO L226 Difference]: Without dead ends: 550 [2022-07-14 02:10:46,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-07-14 02:10:46,336 INFO L413 NwaCegarLoop]: 508 mSDtfsCounter, 341 mSDsluCounter, 907 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 328 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1415 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 328 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-14 02:10:46,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1415 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [328 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-14 02:10:46,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2022-07-14 02:10:46,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 520. [2022-07-14 02:10:46,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 417 states have (on average 1.3645083932853717) internal successors, (569), 423 states have internal predecessors, (569), 74 states have call successors, (74), 29 states have call predecessors, (74), 28 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-07-14 02:10:46,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 716 transitions. [2022-07-14 02:10:46,356 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 716 transitions. Word has length 301 [2022-07-14 02:10:46,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:10:46,357 INFO L495 AbstractCegarLoop]: Abstraction has 520 states and 716 transitions. [2022-07-14 02:10:46,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.714285714285715) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (27), 6 states have call predecessors, (27), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-14 02:10:46,358 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 716 transitions. [2022-07-14 02:10:46,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2022-07-14 02:10:46,361 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:10:46,361 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:10:46,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-14 02:10:46,362 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:10:46,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:10:46,362 INFO L85 PathProgramCache]: Analyzing trace with hash 1023940455, now seen corresponding path program 1 times [2022-07-14 02:10:46,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:10:46,363 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388079090] [2022-07-14 02:10:46,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:10:46,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:10:46,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:10:46,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:46,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 02:10:46,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:46,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 02:10:46,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:46,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 02:10:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:46,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 02:10:46,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:46,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:10:46,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:46,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:10:46,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 02:10:46,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:46,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:10:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 02:10:46,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-14 02:10:46,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:46,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:46,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-14 02:10:46,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:46,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:46,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-07-14 02:10:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:46,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:46,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-14 02:10:46,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-14 02:10:46,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2022-07-14 02:10:46,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-07-14 02:10:46,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:46,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:46,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-07-14 02:10:46,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2022-07-14 02:10:46,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2022-07-14 02:10:46,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:46,742 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2022-07-14 02:10:46,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:10:46,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388079090] [2022-07-14 02:10:46,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388079090] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 02:10:46,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1913895237] [2022-07-14 02:10:46,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:10:46,744 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:10:46,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 02:10:46,745 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) [2022-07-14 02:10:46,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-14 02:10:47,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:47,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 2651 conjuncts, 33 conjunts are in the unsatisfiable core [2022-07-14 02:10:47,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:10:47,670 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2022-07-14 02:10:47,670 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 02:10:47,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1913895237] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 02:10:47,670 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 02:10:47,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2022-07-14 02:10:47,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010210885] [2022-07-14 02:10:47,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 02:10:47,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 02:10:47,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 02:10:47,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 02:10:47,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-07-14 02:10:47,673 INFO L87 Difference]: Start difference. First operand 520 states and 716 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-14 02:10:47,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 02:10:47,727 INFO L93 Difference]: Finished difference Result 1022 states and 1413 transitions. [2022-07-14 02:10:47,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 02:10:47,727 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 303 [2022-07-14 02:10:47,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 02:10:47,731 INFO L225 Difference]: With dead ends: 1022 [2022-07-14 02:10:47,731 INFO L226 Difference]: Without dead ends: 524 [2022-07-14 02:10:47,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 377 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-07-14 02:10:47,733 INFO L413 NwaCegarLoop]: 537 mSDtfsCounter, 5 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 02:10:47,734 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 1597 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 02:10:47,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 524 states. [2022-07-14 02:10:47,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 524 to 522. [2022-07-14 02:10:47,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 522 states, 419 states have (on average 1.3627684964200477) internal successors, (571), 425 states have internal predecessors, (571), 74 states have call successors, (74), 29 states have call predecessors, (74), 28 states have return successors, (73), 73 states have call predecessors, (73), 73 states have call successors, (73) [2022-07-14 02:10:47,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 522 states and 718 transitions. [2022-07-14 02:10:47,754 INFO L78 Accepts]: Start accepts. Automaton has 522 states and 718 transitions. Word has length 303 [2022-07-14 02:10:47,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 02:10:47,754 INFO L495 AbstractCegarLoop]: Abstraction has 522 states and 718 transitions. [2022-07-14 02:10:47,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 2 states have call successors, (29), 2 states have call predecessors, (29), 2 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2022-07-14 02:10:47,755 INFO L276 IsEmpty]: Start isEmpty. Operand 522 states and 718 transitions. [2022-07-14 02:10:47,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-07-14 02:10:47,758 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 02:10:47,758 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 02:10:47,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-14 02:10:47,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:10:47,984 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 02:10:47,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 02:10:47,984 INFO L85 PathProgramCache]: Analyzing trace with hash -544656435, now seen corresponding path program 1 times [2022-07-14 02:10:47,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 02:10:47,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976975049] [2022-07-14 02:10:47,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:10:47,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 02:10:48,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 02:10:48,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:48,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 02:10:48,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:48,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-14 02:10:48,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:48,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-14 02:10:48,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:48,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-14 02:10:48,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:48,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-14 02:10:48,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:48,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:10:48,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-14 02:10:48,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:48,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 02:10:48,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 02:10:48,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-14 02:10:48,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:48,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-14 02:10:48,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:48,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:48,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-14 02:10:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:48,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2022-07-14 02:10:48,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2022-07-14 02:10:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-14 02:10:48,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-14 02:10:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 02:10:48,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-14 02:10:48,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-07-14 02:10:48,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-07-14 02:10:48,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-14 02:10:48,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:48,380 INFO L134 CoverageAnalysis]: Checked inductivity of 268 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2022-07-14 02:10:48,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 02:10:48,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976975049] [2022-07-14 02:10:48,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976975049] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 02:10:48,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080431269] [2022-07-14 02:10:48,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 02:10:48,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 02:10:48,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 02:10:48,384 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) [2022-07-14 02:10:48,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-14 02:10:49,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 02:10:49,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 2621 conjuncts, 140 conjunts are in the unsatisfiable core [2022-07-14 02:10:49,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 02:10:49,423 INFO L356 Elim1Store]: treesize reduction 360, result has 11.3 percent of original size [2022-07-14 02:10:49,424 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 24 case distinctions, treesize of input 89 treesize of output 109 [2022-07-14 02:10:54,393 INFO L356 Elim1Store]: treesize reduction 108, result has 33.7 percent of original size [2022-07-14 02:10:54,394 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 42 treesize of output 81 [2022-07-14 02:10:54,828 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-07-14 02:10:54,866 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-07-14 02:10:55,019 INFO L356 Elim1Store]: treesize reduction 108, result has 33.7 percent of original size [2022-07-14 02:10:55,020 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 20 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 42 treesize of output 81 [2022-07-14 02:10:55,200 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-07-14 02:10:55,285 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-07-14 02:10:55,428 INFO L356 Elim1Store]: treesize reduction 108, result has 33.7 percent of original size [2022-07-14 02:10:55,428 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 20 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 12 case distinctions, treesize of input 42 treesize of output 81 [2022-07-14 02:11:02,808 INFO L356 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2022-07-14 02:11:02,809 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 17 [2022-07-14 02:11:02,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-14 02:11:02,817 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2022-07-14 02:11:07,109 INFO L356 Elim1Store]: treesize reduction 60, result has 47.8 percent of original size [2022-07-14 02:11:07,110 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 7 select indices, 7 select index equivalence classes, 22 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 42 treesize of output 86