./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-08_1a-drivers--scsi--osst.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 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-08_1a-drivers--scsi--osst.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 bda3098802797ffc08e15000ad078a436cf195bb22a40ea321a7ea1bbc073e29 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 16:29:39,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 16:29:39,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 16:29:40,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 16:29:40,026 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 16:29:40,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 16:29:40,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 16:29:40,033 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 16:29:40,034 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 16:29:40,037 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 16:29:40,038 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 16:29:40,039 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 16:29:40,039 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 16:29:40,041 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 16:29:40,042 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 16:29:40,044 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 16:29:40,045 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 16:29:40,045 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 16:29:40,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 16:29:40,051 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 16:29:40,052 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 16:29:40,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 16:29:40,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 16:29:40,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 16:29:40,059 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 16:29:40,059 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 16:29:40,059 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 16:29:40,060 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 16:29:40,061 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 16:29:40,061 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 16:29:40,062 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 16:29:40,062 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 16:29:40,063 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 16:29:40,064 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 16:29:40,065 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 16:29:40,065 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 16:29:40,066 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 16:29:40,066 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 16:29:40,067 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 16:29:40,067 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 16:29:40,068 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 16:29:40,068 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 16:29:40,092 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 16:29:40,093 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 16:29:40,093 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 16:29:40,093 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 16:29:40,094 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 16:29:40,094 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 16:29:40,094 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 16:29:40,095 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 16:29:40,095 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 16:29:40,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 16:29:40,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 16:29:40,096 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 16:29:40,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 16:29:40,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 16:29:40,096 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 16:29:40,096 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 16:29:40,096 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 16:29:40,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 16:29:40,097 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 16:29:40,097 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 16:29:40,097 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 16:29:40,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:29:40,097 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 16:29:40,098 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 16:29:40,098 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 16:29:40,098 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 16:29:40,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 16:29:40,098 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 16:29:40,098 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 16:29:40,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 16:29:40,099 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 16:29:40,099 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bda3098802797ffc08e15000ad078a436cf195bb22a40ea321a7ea1bbc073e29 [2021-12-21 16:29:40,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 16:29:40,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 16:29:40,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 16:29:40,317 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 16:29:40,317 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 16:29:40,318 INFO L432 ainManager$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-08_1a-drivers--scsi--osst.ko-entry_point.cil.out.i [2021-12-21 16:29:40,365 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b225b5380/895b41da44434caba32b1389e87a48ed/FLAGdb5bad396 [2021-12-21 16:29:40,953 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 16:29:40,954 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--osst.ko-entry_point.cil.out.i [2021-12-21 16:29:40,992 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b225b5380/895b41da44434caba32b1389e87a48ed/FLAGdb5bad396 [2021-12-21 16:29:41,112 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b225b5380/895b41da44434caba32b1389e87a48ed [2021-12-21 16:29:41,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 16:29:41,115 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 16:29:41,118 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 16:29:41,118 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 16:29:41,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 16:29:41,120 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:29:41" (1/1) ... [2021-12-21 16:29:41,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@190b2809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:29:41, skipping insertion in model container [2021-12-21 16:29:41,122 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:29:41" (1/1) ... [2021-12-21 16:29:41,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 16:29:41,223 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 16:29:42,584 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-08_1a-drivers--scsi--osst.ko-entry_point.cil.out.i[353122,353135] [2021-12-21 16:29:42,627 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:29:42,651 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 16:29:42,998 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-08_1a-drivers--scsi--osst.ko-entry_point.cil.out.i[353122,353135] [2021-12-21 16:29:43,004 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:29:43,069 INFO L208 MainTranslator]: Completed translation [2021-12-21 16:29:43,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:29:43 WrapperNode [2021-12-21 16:29:43,070 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 16:29:43,071 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 16:29:43,072 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 16:29:43,072 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 16:29:43,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:29:43" (1/1) ... [2021-12-21 16:29:43,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:29:43" (1/1) ... [2021-12-21 16:29:43,496 INFO L137 Inliner]: procedures = 247, calls = 4073, calls flagged for inlining = 104, calls inlined = 99, statements flattened = 9462 [2021-12-21 16:29:43,496 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 16:29:43,497 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 16:29:43,497 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 16:29:43,497 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 16:29:43,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:29:43" (1/1) ... [2021-12-21 16:29:43,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:29:43" (1/1) ... [2021-12-21 16:29:43,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:29:43" (1/1) ... [2021-12-21 16:29:43,590 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:29:43" (1/1) ... [2021-12-21 16:29:43,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:29:43" (1/1) ... [2021-12-21 16:29:43,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:29:43" (1/1) ... [2021-12-21 16:29:43,849 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:29:43" (1/1) ... [2021-12-21 16:29:43,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 16:29:43,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 16:29:43,913 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 16:29:43,913 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 16:29:43,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:29:43" (1/1) ... [2021-12-21 16:29:43,918 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:29:43,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:29:43,934 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) [2021-12-21 16:29:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2021-12-21 16:29:43,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2021-12-21 16:29:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure osst_log_options [2021-12-21 16:29:43,967 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_log_options [2021-12-21 16:29:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-12-21 16:29:43,941 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 [2021-12-21 16:29:43,967 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-12-21 16:29:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-21 16:29:43,971 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-21 16:29:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-12-21 16:29:43,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 16:29:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 16:29:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 16:29:43,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 16:29:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-21 16:29:43,972 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-21 16:29:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_behind_check [2021-12-21 16:29:43,972 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_behind_check [2021-12-21 16:29:43,972 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-12-21 16:29:43,972 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-12-21 16:29:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_block_when_processing_errors [2021-12-21 16:29:43,973 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_block_when_processing_errors [2021-12-21 16:29:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-21 16:29:43,973 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-21 16:29:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock [2021-12-21 16:29:43,973 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock [2021-12-21 16:29:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure osst_release_request [2021-12-21 16:29:43,973 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_release_request [2021-12-21 16:29:43,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 16:29:43,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 16:29:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure osst_set_frame_position [2021-12-21 16:29:43,974 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_set_frame_position [2021-12-21 16:29:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_header [2021-12-21 16:29:43,974 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_header [2021-12-21 16:29:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2021-12-21 16:29:43,974 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2021-12-21 16:29:43,974 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-21 16:29:43,975 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-21 16:29:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-21 16:29:43,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-21 16:29:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2021-12-21 16:29:43,975 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2021-12-21 16:29:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_frame [2021-12-21 16:29:43,975 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_frame [2021-12-21 16:29:43,975 INFO L130 BoogieDeclarations]: Found specification of procedure tape_name [2021-12-21 16:29:43,976 INFO L138 BoogieDeclarations]: Found implementation of procedure tape_name [2021-12-21 16:29:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_put [2021-12-21 16:29:43,976 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_put [2021-12-21 16:29:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-21 16:29:43,976 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-21 16:29:43,976 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-21 16:29:43,976 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-21 16:29:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_write_buffer [2021-12-21 16:29:43,977 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_write_buffer [2021-12-21 16:29:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure osst_initiate_read [2021-12-21 16:29:43,977 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_initiate_read [2021-12-21 16:29:43,977 INFO L130 BoogieDeclarations]: Found specification of procedure osst_seek_logical_blk [2021-12-21 16:29:43,977 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_seek_logical_blk [2021-12-21 16:29:43,978 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_trailer [2021-12-21 16:29:43,978 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_trailer [2021-12-21 16:29:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_drive_buffer [2021-12-21 16:29:43,979 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_drive_buffer [2021-12-21 16:29:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 16:29:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-21 16:29:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure osst_int_ioctl [2021-12-21 16:29:43,979 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_int_ioctl [2021-12-21 16:29:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2021-12-21 16:29:43,979 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2021-12-21 16:29:43,979 INFO L130 BoogieDeclarations]: Found specification of procedure do_door_lock [2021-12-21 16:29:43,980 INFO L138 BoogieDeclarations]: Found implementation of procedure do_door_lock [2021-12-21 16:29:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 16:29:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_to_buffer [2021-12-21 16:29:43,980 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_to_buffer [2021-12-21 16:29:43,980 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_analyze_headers [2021-12-21 16:29:43,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_analyze_headers [2021-12-21 16:29:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-21 16:29:43,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-21 16:29:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2021-12-21 16:29:43,981 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2021-12-21 16:29:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_logical_frame [2021-12-21 16:29:43,981 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_logical_frame [2021-12-21 16:29:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2021-12-21 16:29:43,981 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2021-12-21 16:29:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 16:29:43,982 INFO L130 BoogieDeclarations]: Found specification of procedure osst_position_tape_and_confirm [2021-12-21 16:29:43,982 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_position_tape_and_confirm [2021-12-21 16:29:43,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 16:29:43,982 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-12-21 16:29:43,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-12-21 16:29:43,982 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-21 16:29:43,982 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-21 16:29:43,983 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-21 16:29:43,983 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-21 16:29:43,983 INFO L130 BoogieDeclarations]: Found specification of procedure osst_verify_frame [2021-12-21 16:29:43,983 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_verify_frame [2021-12-21 16:29:43,983 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-21 16:29:43,984 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-21 16:29:43,984 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_ready [2021-12-21 16:29:43,984 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_ready [2021-12-21 16:29:43,984 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-21 16:29:43,984 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-21 16:29:43,985 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reset_header [2021-12-21 16:29:43,985 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reset_header [2021-12-21 16:29:43,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 16:29:43,985 INFO L130 BoogieDeclarations]: Found specification of procedure osst_do_scsi [2021-12-21 16:29:43,985 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_do_scsi [2021-12-21 16:29:43,985 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-21 16:29:43,985 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-21 16:29:43,985 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2021-12-21 16:29:43,985 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2021-12-21 16:29:43,986 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 16:29:43,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 16:29:43,986 INFO L130 BoogieDeclarations]: Found specification of procedure osst_chk_result [2021-12-21 16:29:43,986 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_chk_result [2021-12-21 16:29:43,986 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_add [2021-12-21 16:29:43,986 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_add [2021-12-21 16:29:43,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-21 16:29:43,987 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-21 16:29:43,987 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_backward [2021-12-21 16:29:43,987 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_backward [2021-12-21 16:29:43,989 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_back_buffer_and_rewrite [2021-12-21 16:29:43,989 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_back_buffer_and_rewrite [2021-12-21 16:29:43,989 INFO L130 BoogieDeclarations]: Found specification of procedure cross_eof [2021-12-21 16:29:43,989 INFO L138 BoogieDeclarations]: Found implementation of procedure cross_eof [2021-12-21 16:29:43,990 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_cleanup [2021-12-21 16:29:43,990 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_cleanup [2021-12-21 16:29:43,991 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-21 16:29:43,991 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-21 16:29:43,991 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_buffer [2021-12-21 16:29:43,995 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_buffer [2021-12-21 16:29:43,995 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2021-12-21 16:29:43,995 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2021-12-21 16:29:43,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 16:29:43,995 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-21 16:29:43,996 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-21 16:29:43,996 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reposition_and_retry [2021-12-21 16:29:43,996 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reposition_and_retry [2021-12-21 16:29:43,996 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_filemark [2021-12-21 16:29:43,996 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_filemark [2021-12-21 16:29:43,996 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_destroy [2021-12-21 16:29:43,996 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_destroy [2021-12-21 16:29:43,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 16:29:43,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 16:29:43,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-21 16:29:43,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-21 16:29:43,997 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2021-12-21 16:29:43,997 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2021-12-21 16:29:43,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 16:29:43,997 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2021-12-21 16:29:43,997 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2021-12-21 16:29:43,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-21 16:29:43,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-21 16:29:43,997 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock [2021-12-21 16:29:43,997 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock [2021-12-21 16:29:43,997 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-21 16:29:43,998 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-21 16:29:43,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 16:29:43,998 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_write_header [2021-12-21 16:29:43,998 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_write_header [2021-12-21 16:29:43,998 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write [2021-12-21 16:29:43,998 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write [2021-12-21 16:29:43,998 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_frame [2021-12-21 16:29:43,998 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_frame [2021-12-21 16:29:43,998 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2021-12-21 16:29:43,998 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2021-12-21 16:29:43,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 16:29:43,999 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-21 16:29:43,999 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_frame_position [2021-12-21 16:29:43,999 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_frame_position [2021-12-21 16:29:43,999 INFO L130 BoogieDeclarations]: Found specification of procedure os_scsi_tape_flush [2021-12-21 16:29:43,999 INFO L138 BoogieDeclarations]: Found implementation of procedure os_scsi_tape_flush [2021-12-21 16:29:43,999 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_buffer [2021-12-21 16:29:43,999 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_buffer [2021-12-21 16:29:43,999 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_from_buffer [2021-12-21 16:29:43,999 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_from_buffer [2021-12-21 16:29:43,999 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-21 16:29:44,000 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-21 16:29:44,000 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2021-12-21 16:29:44,000 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2021-12-21 16:29:44,000 INFO L130 BoogieDeclarations]: Found specification of procedure normalize_buffer [2021-12-21 16:29:44,000 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize_buffer [2021-12-21 16:29:44,000 INFO L130 BoogieDeclarations]: Found specification of procedure osst_init_aux [2021-12-21 16:29:44,000 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_init_aux [2021-12-21 16:29:44,000 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_error_recovery [2021-12-21 16:29:44,000 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_error_recovery [2021-12-21 16:29:44,000 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_eod [2021-12-21 16:29:44,001 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_eod [2021-12-21 16:29:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2021-12-21 16:29:44,001 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2021-12-21 16:29:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_forward_slow [2021-12-21 16:29:44,001 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_forward_slow [2021-12-21 16:29:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2021-12-21 16:29:44,001 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2021-12-21 16:29:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2021-12-21 16:29:44,001 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2021-12-21 16:29:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_6 [2021-12-21 16:29:44,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_6 [2021-12-21 16:29:44,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 16:29:44,002 INFO L130 BoogieDeclarations]: Found specification of procedure osst_recover_wait_frame [2021-12-21 16:29:44,002 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_recover_wait_frame [2021-12-21 16:29:44,002 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_frame [2021-12-21 16:29:44,002 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_frame [2021-12-21 16:29:44,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 16:29:44,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 16:29:44,002 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-21 16:29:44,002 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-21 16:29:44,852 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 16:29:44,857 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 16:29:44,959 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 16:29:57,449 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 16:29:57,472 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 16:29:57,472 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-21 16:29:57,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:29:57 BoogieIcfgContainer [2021-12-21 16:29:57,476 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 16:29:57,478 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 16:29:57,478 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 16:29:57,481 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 16:29:57,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 04:29:41" (1/3) ... [2021-12-21 16:29:57,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9d56bc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:29:57, skipping insertion in model container [2021-12-21 16:29:57,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:29:43" (2/3) ... [2021-12-21 16:29:57,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9d56bc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:29:57, skipping insertion in model container [2021-12-21 16:29:57,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:29:57" (3/3) ... [2021-12-21 16:29:57,483 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--scsi--osst.ko-entry_point.cil.out.i [2021-12-21 16:29:57,486 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 16:29:57,487 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 16:29:57,526 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 16:29:57,530 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 16:29:57,530 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 16:29:57,573 INFO L276 IsEmpty]: Start isEmpty. Operand has 3093 states, 2383 states have (on average 1.4582459085186739) internal successors, (3475), 2413 states have internal predecessors, (3475), 616 states have call successors, (616), 93 states have call predecessors, (616), 92 states have return successors, (605), 602 states have call predecessors, (605), 605 states have call successors, (605) [2021-12-21 16:29:57,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2021-12-21 16:29:57,591 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:29:57,592 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:29:57,592 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:29:57,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:29:57,598 INFO L85 PathProgramCache]: Analyzing trace with hash -749878817, now seen corresponding path program 1 times [2021-12-21 16:29:57,606 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:29:57,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28328717] [2021-12-21 16:29:57,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:29:57,607 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:29:57,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:29:58,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:29:58,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:29:58,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:29:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:29:58,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:29:58,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:29:58,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:29:58,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:29:58,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:29:58,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 16:29:58,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:29:58,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-21 16:29:58,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:29:58,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 16:29:58,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:29:58,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 16:29:58,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:29:58,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-21 16:29:58,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:29:58,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 16:29:58,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:29:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-21 16:29:58,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:29:58,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-21 16:29:58,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:29:58,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-21 16:29:58,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:29:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-21 16:29:58,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:29:58,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-21 16:29:58,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:29:58,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-12-21 16:29:58,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:29:58,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-12-21 16:29:58,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:29:58,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-21 16:29:58,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:29:58,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-12-21 16:29:58,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:29:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-12-21 16:29:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:29:58,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2021-12-21 16:29:58,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:29:58,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2021-12-21 16:29:58,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:29:58,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2021-12-21 16:29:58,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:29:58,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2021-12-21 16:29:58,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:29:58,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2021-12-21 16:29:58,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2021-12-21 16:29:58,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2021-12-21 16:29:58,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-12-21 16:29:58,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2021-12-21 16:29:58,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2021-12-21 16:29:58,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2021-12-21 16:29:58,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2021-12-21 16:29:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:29:58,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 506 [2021-12-21 16:29:58,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 510 [2021-12-21 16:29:58,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2021-12-21 16:29:58,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:29:58,945 INFO L134 CoverageAnalysis]: Checked inductivity of 4452 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4452 trivial. 0 not checked. [2021-12-21 16:29:58,948 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:29:58,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28328717] [2021-12-21 16:29:58,948 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28328717] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:29:58,948 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:29:58,949 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:29:58,950 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234510276] [2021-12-21 16:29:58,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:29:58,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:29:58,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:29:58,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:29:58,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:29:58,983 INFO L87 Difference]: Start difference. First operand has 3093 states, 2383 states have (on average 1.4582459085186739) internal successors, (3475), 2413 states have internal predecessors, (3475), 616 states have call successors, (616), 93 states have call predecessors, (616), 92 states have return successors, (605), 602 states have call predecessors, (605), 605 states have call successors, (605) Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (40), 6 states have call predecessors, (40), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-12-21 16:30:06,070 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:30:08,108 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:30:10,149 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:30:19,354 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-21 16:30:21,378 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-12-21 16:30:25,839 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:30:27,865 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:30:31,807 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:30:34,032 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:30:34,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:30:34,490 INFO L93 Difference]: Finished difference Result 6675 states and 10651 transitions. [2021-12-21 16:30:34,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 16:30:34,501 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (40), 6 states have call predecessors, (40), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) Word has length 528 [2021-12-21 16:30:34,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:30:34,540 INFO L225 Difference]: With dead ends: 6675 [2021-12-21 16:30:34,540 INFO L226 Difference]: Without dead ends: 3564 [2021-12-21 16:30:34,569 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:30:34,574 INFO L933 BasicCegarLoop]: 4097 mSDtfsCounter, 3904 mSDsluCounter, 4147 mSDsCounter, 0 mSdLazyCounter, 9298 mSolverCounterSat, 2634 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4355 SdHoareTripleChecker+Valid, 8244 SdHoareTripleChecker+Invalid, 11940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2634 IncrementalHoareTripleChecker+Valid, 9298 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.9s IncrementalHoareTripleChecker+Time [2021-12-21 16:30:34,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4355 Valid, 8244 Invalid, 11940 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2634 Valid, 9298 Invalid, 8 Unknown, 0 Unchecked, 34.9s Time] [2021-12-21 16:30:34,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3564 states. [2021-12-21 16:30:34,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3564 to 3070. [2021-12-21 16:30:34,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3070 states, 2373 states have (on average 1.4517488411293722) internal successors, (3445), 2390 states have internal predecessors, (3445), 605 states have call successors, (605), 92 states have call predecessors, (605), 91 states have return successors, (604), 601 states have call predecessors, (604), 604 states have call successors, (604) [2021-12-21 16:30:34,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3070 states to 3070 states and 4654 transitions. [2021-12-21 16:30:34,779 INFO L78 Accepts]: Start accepts. Automaton has 3070 states and 4654 transitions. Word has length 528 [2021-12-21 16:30:34,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:30:34,780 INFO L470 AbstractCegarLoop]: Abstraction has 3070 states and 4654 transitions. [2021-12-21 16:30:34,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (40), 6 states have call predecessors, (40), 2 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-12-21 16:30:34,781 INFO L276 IsEmpty]: Start isEmpty. Operand 3070 states and 4654 transitions. [2021-12-21 16:30:34,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2021-12-21 16:30:34,790 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:30:34,791 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 8, 8, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 16:30:34,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 16:30:34,791 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:30:34,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:30:34,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1430358289, now seen corresponding path program 1 times [2021-12-21 16:30:34,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:30:34,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006638470] [2021-12-21 16:30:34,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:30:34,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:30:34,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:30:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:30:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-21 16:30:35,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:30:35,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-21 16:30:35,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:30:35,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-21 16:30:35,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:30:35,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-21 16:30:35,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:30:35,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-21 16:30:35,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:30:35,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-21 16:30:35,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:30:35,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-21 16:30:35,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:30:35,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-21 16:30:35,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:30:35,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-21 16:30:35,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:30:35,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 16:30:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:30:35,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-21 16:30:35,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:30:35,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-21 16:30:35,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:30:35,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-21 16:30:35,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:30:35,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-21 16:30:35,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:30:35,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-21 16:30:35,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:30:35,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-12-21 16:30:35,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:30:35,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-12-21 16:30:35,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:30:35,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-21 16:30:35,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:30:35,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-12-21 16:30:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:30:35,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2021-12-21 16:30:35,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:30:35,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2021-12-21 16:30:35,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:30:35,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2021-12-21 16:30:35,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:30:35,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2021-12-21 16:30:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:30:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2021-12-21 16:30:35,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:30:35,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2021-12-21 16:30:35,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 414 [2021-12-21 16:30:35,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2021-12-21 16:30:35,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-12-21 16:30:35,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 447 [2021-12-21 16:30:35,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2021-12-21 16:30:35,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 469 [2021-12-21 16:30:35,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 480 [2021-12-21 16:30:35,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:30:35,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 506 [2021-12-21 16:30:35,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 510 [2021-12-21 16:30:35,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 516 [2021-12-21 16:30:35,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:30:35,570 INFO L134 CoverageAnalysis]: Checked inductivity of 4452 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4452 trivial. 0 not checked. [2021-12-21 16:30:35,570 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:30:35,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006638470] [2021-12-21 16:30:35,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006638470] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:30:35,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:30:35,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 16:30:35,571 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627130445] [2021-12-21 16:30:35,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:30:35,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 16:30:35,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:30:35,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 16:30:35,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-21 16:30:35,573 INFO L87 Difference]: Start difference. First operand 3070 states and 4654 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (40), 6 states have call predecessors, (40), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2021-12-21 16:30:43,313 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-21 16:30:45,353 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []