./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--media--pci--pt3--earth-pt3.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b 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--media--pci--pt3--earth-pt3.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 a80d5d6260f748dd9867d7bcd6f4a93a5987d3d416867522c1bef6a78e755228 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 17:58:26,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 17:58:26,969 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 17:58:27,007 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 17:58:27,008 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 17:58:27,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 17:58:27,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 17:58:27,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 17:58:27,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 17:58:27,025 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 17:58:27,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 17:58:27,027 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 17:58:27,027 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 17:58:27,029 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 17:58:27,031 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 17:58:27,032 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 17:58:27,033 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 17:58:27,033 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 17:58:27,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 17:58:27,044 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 17:58:27,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 17:58:27,060 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 17:58:27,061 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 17:58:27,061 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 17:58:27,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 17:58:27,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 17:58:27,063 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 17:58:27,063 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 17:58:27,064 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 17:58:27,064 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 17:58:27,064 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 17:58:27,065 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 17:58:27,066 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 17:58:27,066 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 17:58:27,067 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 17:58:27,068 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 17:58:27,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 17:58:27,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 17:58:27,069 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 17:58:27,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 17:58:27,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 17:58:27,071 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 17:58:27,087 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 17:58:27,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 17:58:27,088 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 17:58:27,088 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 17:58:27,089 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 17:58:27,089 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 17:58:27,090 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 17:58:27,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 17:58:27,090 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 17:58:27,090 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 17:58:27,091 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 17:58:27,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 17:58:27,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 17:58:27,091 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 17:58:27,091 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 17:58:27,092 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 17:58:27,092 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 17:58:27,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 17:58:27,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 17:58:27,092 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 17:58:27,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 17:58:27,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:58:27,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 17:58:27,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 17:58:27,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 17:58:27,093 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 17:58:27,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 17:58:27,094 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 17:58:27,094 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 17:58:27,094 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 17:58:27,094 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 17:58:27,095 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a80d5d6260f748dd9867d7bcd6f4a93a5987d3d416867522c1bef6a78e755228 [2021-12-14 17:58:27,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 17:58:27,302 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 17:58:27,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 17:58:27,305 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 17:58:27,311 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 17:58:27,312 INFO L432 ainManager$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--media--pci--pt3--earth-pt3.ko-entry_point.cil.out.i [2021-12-14 17:58:27,377 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9236e7b02/d782ea36eb3d4c32b1e99227d66187f6/FLAGd7b454dbb [2021-12-14 17:58:27,959 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 17:58:27,959 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--media--pci--pt3--earth-pt3.ko-entry_point.cil.out.i [2021-12-14 17:58:27,995 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9236e7b02/d782ea36eb3d4c32b1e99227d66187f6/FLAGd7b454dbb [2021-12-14 17:58:28,395 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9236e7b02/d782ea36eb3d4c32b1e99227d66187f6 [2021-12-14 17:58:28,397 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 17:58:28,398 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 17:58:28,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 17:58:28,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 17:58:28,402 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 17:58:28,403 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:58:28" (1/1) ... [2021-12-14 17:58:28,404 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e80d8ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:58:28, skipping insertion in model container [2021-12-14 17:58:28,404 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:58:28" (1/1) ... [2021-12-14 17:58:28,408 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 17:58:28,482 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 17:58:29,568 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--pci--pt3--earth-pt3.ko-entry_point.cil.out.i[191080,191093] [2021-12-14 17:58:29,610 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:58:29,652 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 17:58:29,844 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--media--pci--pt3--earth-pt3.ko-entry_point.cil.out.i[191080,191093] [2021-12-14 17:58:29,850 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:58:29,901 INFO L208 MainTranslator]: Completed translation [2021-12-14 17:58:29,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:58:29 WrapperNode [2021-12-14 17:58:29,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 17:58:29,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 17:58:29,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 17:58:29,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 17:58:29,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:58:29" (1/1) ... [2021-12-14 17:58:29,981 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:58:29" (1/1) ... [2021-12-14 17:58:30,072 INFO L137 Inliner]: procedures = 210, calls = 1426, calls flagged for inlining = 105, calls inlined = 105, statements flattened = 3494 [2021-12-14 17:58:30,073 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 17:58:30,074 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 17:58:30,074 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 17:58:30,074 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 17:58:30,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:58:29" (1/1) ... [2021-12-14 17:58:30,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:58:29" (1/1) ... [2021-12-14 17:58:30,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:58:29" (1/1) ... [2021-12-14 17:58:30,094 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:58:29" (1/1) ... [2021-12-14 17:58:30,180 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:58:29" (1/1) ... [2021-12-14 17:58:30,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:58:29" (1/1) ... [2021-12-14 17:58:30,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:58:29" (1/1) ... [2021-12-14 17:58:30,220 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 17:58:30,221 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 17:58:30,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 17:58:30,221 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 17:58:30,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:58:29" (1/1) ... [2021-12-14 17:58:30,234 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:58:30,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:58:30,278 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) [2021-12-14 17:58:30,324 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 [2021-12-14 17:58:30,344 INFO L130 BoogieDeclarations]: Found specification of procedure pt3_fe_init [2021-12-14 17:58:30,345 INFO L138 BoogieDeclarations]: Found implementation of procedure pt3_fe_init [2021-12-14 17:58:30,345 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2021-12-14 17:58:30,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2021-12-14 17:58:30,345 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2021-12-14 17:58:30,345 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-14 17:58:30,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 17:58:30,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 17:58:30,346 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-14 17:58:30,346 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-14 17:58:30,346 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 17:58:30,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 17:58:30,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-14 17:58:30,346 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-14 17:58:30,346 INFO L130 BoogieDeclarations]: Found specification of procedure wait_i2c_result [2021-12-14 17:58:30,346 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_i2c_result [2021-12-14 17:58:30,347 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2021-12-14 17:58:30,347 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2021-12-14 17:58:30,347 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-14 17:58:30,347 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-14 17:58:30,347 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 17:58:30,347 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 17:58:30,347 INFO L130 BoogieDeclarations]: Found specification of procedure pt3_stop_streaming [2021-12-14 17:58:30,347 INFO L138 BoogieDeclarations]: Found implementation of procedure pt3_stop_streaming [2021-12-14 17:58:30,348 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-12-14 17:58:30,348 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-12-14 17:58:30,348 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2021-12-14 17:58:30,348 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2021-12-14 17:58:30,348 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2021-12-14 17:58:30,348 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2021-12-14 17:58:30,348 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask [2021-12-14 17:58:30,349 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask [2021-12-14 17:58:30,349 INFO L130 BoogieDeclarations]: Found specification of procedure pt3_lnb_ctrl [2021-12-14 17:58:30,349 INFO L138 BoogieDeclarations]: Found implementation of procedure pt3_lnb_ctrl [2021-12-14 17:58:30,349 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-14 17:58:30,349 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-14 17:58:30,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 17:58:30,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 17:58:30,349 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 17:58:30,350 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 17:58:30,350 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2021-12-14 17:58:30,350 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2021-12-14 17:58:30,350 INFO L130 BoogieDeclarations]: Found specification of procedure pt3_free_dmabuf [2021-12-14 17:58:30,350 INFO L138 BoogieDeclarations]: Found implementation of procedure pt3_free_dmabuf [2021-12-14 17:58:30,350 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2021-12-14 17:58:30,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2021-12-14 17:58:30,350 INFO L130 BoogieDeclarations]: Found specification of procedure pt3_alloc_dmabuf [2021-12-14 17:58:30,351 INFO L138 BoogieDeclarations]: Found implementation of procedure pt3_alloc_dmabuf [2021-12-14 17:58:30,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 17:58:30,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 17:58:30,351 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-14 17:58:30,351 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-14 17:58:30,351 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2021-12-14 17:58:30,351 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2021-12-14 17:58:30,351 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-14 17:58:30,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-14 17:58:30,352 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_new_device [2021-12-14 17:58:30,352 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_new_device [2021-12-14 17:58:30,352 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2021-12-14 17:58:30,352 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2021-12-14 17:58:30,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 17:58:30,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 17:58:30,353 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_unregister_device [2021-12-14 17:58:30,353 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_unregister_device [2021-12-14 17:58:30,353 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_base [2021-12-14 17:58:30,353 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_base [2021-12-14 17:58:30,353 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-12-14 17:58:30,353 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-12-14 17:58:30,353 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-14 17:58:30,353 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-14 17:58:30,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 17:58:30,354 INFO L130 BoogieDeclarations]: Found specification of procedure pt3_resume [2021-12-14 17:58:30,354 INFO L138 BoogieDeclarations]: Found implementation of procedure pt3_resume [2021-12-14 17:58:30,354 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-14 17:58:30,354 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-14 17:58:30,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 17:58:30,354 INFO L130 BoogieDeclarations]: Found specification of procedure pt3_demod_write [2021-12-14 17:58:30,354 INFO L138 BoogieDeclarations]: Found implementation of procedure pt3_demod_write [2021-12-14 17:58:30,355 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-14 17:58:30,355 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-14 17:58:30,355 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 17:58:30,355 INFO L130 BoogieDeclarations]: Found specification of procedure send_i2c_cmd [2021-12-14 17:58:30,355 INFO L138 BoogieDeclarations]: Found implementation of procedure send_i2c_cmd [2021-12-14 17:58:30,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 17:58:30,355 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 17:58:30,355 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_swfilter_packets [2021-12-14 17:58:30,356 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_swfilter_packets [2021-12-14 17:58:30,356 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 17:58:30,356 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 17:58:30,356 INFO L130 BoogieDeclarations]: Found specification of procedure cmdbuf_add [2021-12-14 17:58:30,356 INFO L138 BoogieDeclarations]: Found implementation of procedure cmdbuf_add [2021-12-14 17:58:30,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 17:58:30,356 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-14 17:58:30,356 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-14 17:58:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure pt3_stop_dma [2021-12-14 17:58:30,357 INFO L138 BoogieDeclarations]: Found implementation of procedure pt3_stop_dma [2021-12-14 17:58:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 17:58:30,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 17:58:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure put_byte_write [2021-12-14 17:58:30,357 INFO L138 BoogieDeclarations]: Found implementation of procedure put_byte_write [2021-12-14 17:58:30,357 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_coherent_mask [2021-12-14 17:58:30,357 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_coherent_mask [2021-12-14 17:58:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-14 17:58:30,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-14 17:58:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 17:58:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure pt3_set_tuner_power [2021-12-14 17:58:30,358 INFO L138 BoogieDeclarations]: Found implementation of procedure pt3_set_tuner_power [2021-12-14 17:58:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 17:58:30,358 INFO L130 BoogieDeclarations]: Found specification of procedure pci_ioremap_bar [2021-12-14 17:58:30,358 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_ioremap_bar [2021-12-14 17:58:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 17:58:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-14 17:58:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure pt3_suspend [2021-12-14 17:58:30,359 INFO L138 BoogieDeclarations]: Found implementation of procedure pt3_suspend [2021-12-14 17:58:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-14 17:58:30,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-14 17:58:30,359 INFO L130 BoogieDeclarations]: Found specification of procedure pt3_start_dma [2021-12-14 17:58:30,360 INFO L138 BoogieDeclarations]: Found implementation of procedure pt3_start_dma [2021-12-14 17:58:30,360 INFO L130 BoogieDeclarations]: Found specification of procedure pt3_find_adapter [2021-12-14 17:58:30,360 INFO L138 BoogieDeclarations]: Found implementation of procedure pt3_find_adapter [2021-12-14 17:58:30,360 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-14 17:58:30,360 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-14 17:58:30,360 INFO L130 BoogieDeclarations]: Found specification of procedure pt3_init_dmabuf [2021-12-14 17:58:30,360 INFO L138 BoogieDeclarations]: Found implementation of procedure pt3_init_dmabuf [2021-12-14 17:58:30,360 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2021-12-14 17:58:30,361 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2021-12-14 17:58:30,361 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2021-12-14 17:58:30,361 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2021-12-14 17:58:30,361 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_del_adapter [2021-12-14 17:58:30,361 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_del_adapter [2021-12-14 17:58:30,361 INFO L130 BoogieDeclarations]: Found specification of procedure pt3_cleanup_adapter [2021-12-14 17:58:30,361 INFO L138 BoogieDeclarations]: Found implementation of procedure pt3_cleanup_adapter [2021-12-14 17:58:30,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 17:58:30,362 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 17:58:30,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 17:58:30,362 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-14 17:58:30,362 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-14 17:58:30,824 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 17:58:30,826 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 17:58:31,228 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 17:58:40,531 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 17:58:40,565 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 17:58:40,565 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 17:58:40,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:58:40 BoogieIcfgContainer [2021-12-14 17:58:40,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 17:58:40,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 17:58:40,569 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 17:58:40,573 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 17:58:40,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:58:28" (1/3) ... [2021-12-14 17:58:40,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f39016a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:58:40, skipping insertion in model container [2021-12-14 17:58:40,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:58:29" (2/3) ... [2021-12-14 17:58:40,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f39016a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:58:40, skipping insertion in model container [2021-12-14 17:58:40,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:58:40" (3/3) ... [2021-12-14 17:58:40,576 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--media--pci--pt3--earth-pt3.ko-entry_point.cil.out.i [2021-12-14 17:58:40,579 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 17:58:40,579 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 17:58:40,640 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 17:58:40,644 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 [2021-12-14 17:58:40,648 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 17:58:40,679 INFO L276 IsEmpty]: Start isEmpty. Operand has 989 states, 739 states have (on average 1.3802435723951285) internal successors, (1020), 756 states have internal predecessors, (1020), 190 states have call successors, (190), 59 states have call predecessors, (190), 58 states have return successors, (185), 185 states have call predecessors, (185), 185 states have call successors, (185) [2021-12-14 17:58:40,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-14 17:58:40,686 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:58:40,686 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:58:40,687 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:58:40,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:58:40,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1878981996, now seen corresponding path program 1 times [2021-12-14 17:58:40,696 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:58:40,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049295144] [2021-12-14 17:58:40,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:58:40,698 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:58:40,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:58:41,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:58:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:58:41,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:58:41,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:58:41,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:58:41,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:58:41,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:58:41,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:58:41,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:58:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:58:41,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:58:41,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:58:41,142 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-14 17:58:41,142 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:58:41,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049295144] [2021-12-14 17:58:41,143 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049295144] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:58:41,143 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:58:41,143 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 17:58:41,144 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398518061] [2021-12-14 17:58:41,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:58:41,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:58:41,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:58:41,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:58:41,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:58:41,187 INFO L87 Difference]: Start difference. First operand has 989 states, 739 states have (on average 1.3802435723951285) internal successors, (1020), 756 states have internal predecessors, (1020), 190 states have call successors, (190), 59 states have call predecessors, (190), 58 states have return successors, (185), 185 states have call predecessors, (185), 185 states have call successors, (185) Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-14 17:58:43,330 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 [] [2021-12-14 17:58:46,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:58:48,472 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:58:50,542 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:58:50,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:58:50,690 INFO L93 Difference]: Finished difference Result 2071 states and 2997 transitions. [2021-12-14 17:58:50,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 17:58:50,692 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 51 [2021-12-14 17:58:50,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:58:50,712 INFO L225 Difference]: With dead ends: 2071 [2021-12-14 17:58:50,713 INFO L226 Difference]: Without dead ends: 1075 [2021-12-14 17:58:50,721 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:58:50,723 INFO L933 BasicCegarLoop]: 1381 mSDtfsCounter, 521 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 453 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 555 SdHoareTripleChecker+Valid, 2145 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 453 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2021-12-14 17:58:50,724 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [555 Valid, 2145 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [453 Valid, 372 Invalid, 4 Unknown, 0 Unchecked, 9.3s Time] [2021-12-14 17:58:50,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2021-12-14 17:58:50,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 977. [2021-12-14 17:58:50,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 734 states have (on average 1.3719346049046321) internal successors, (1007), 744 states have internal predecessors, (1007), 185 states have call successors, (185), 58 states have call predecessors, (185), 57 states have return successors, (183), 183 states have call predecessors, (183), 183 states have call successors, (183) [2021-12-14 17:58:50,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1375 transitions. [2021-12-14 17:58:50,852 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1375 transitions. Word has length 51 [2021-12-14 17:58:50,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:58:50,852 INFO L470 AbstractCegarLoop]: Abstraction has 977 states and 1375 transitions. [2021-12-14 17:58:50,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-14 17:58:50,853 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1375 transitions. [2021-12-14 17:58:50,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-14 17:58:50,858 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:58:50,859 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:58:50,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 17:58:50,861 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:58:50,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:58:50,861 INFO L85 PathProgramCache]: Analyzing trace with hash 373161192, now seen corresponding path program 1 times [2021-12-14 17:58:50,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:58:50,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275111319] [2021-12-14 17:58:50,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:58:50,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:58:50,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:58:51,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:58:51,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:58:51,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:58:51,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:58:51,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:58:51,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:58:51,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:58:51,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:58:51,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:58:51,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:58:51,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:58:51,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:58:51,078 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-14 17:58:51,079 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:58:51,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275111319] [2021-12-14 17:58:51,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275111319] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:58:51,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:58:51,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 17:58:51,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785021610] [2021-12-14 17:58:51,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:58:51,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 17:58:51,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:58:51,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 17:58:51,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:58:51,084 INFO L87 Difference]: Start difference. First operand 977 states and 1375 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-14 17:58:55,015 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 [] [2021-12-14 17:58:57,279 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:58:59,316 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:59:01,559 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:59:03,667 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:59:05,702 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 [] [2021-12-14 17:59:05,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:59:05,998 INFO L93 Difference]: Finished difference Result 3088 states and 4410 transitions. [2021-12-14 17:59:05,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 17:59:05,999 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 51 [2021-12-14 17:59:05,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:59:06,011 INFO L225 Difference]: With dead ends: 3088 [2021-12-14 17:59:06,012 INFO L226 Difference]: Without dead ends: 2121 [2021-12-14 17:59:06,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-14 17:59:06,018 INFO L933 BasicCegarLoop]: 1530 mSDtfsCounter, 1789 mSDsluCounter, 2705 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 582 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1918 SdHoareTripleChecker+Valid, 4235 SdHoareTripleChecker+Invalid, 1861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 582 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2021-12-14 17:59:06,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1918 Valid, 4235 Invalid, 1861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [582 Valid, 1273 Invalid, 6 Unknown, 0 Unchecked, 14.7s Time] [2021-12-14 17:59:06,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2121 states. [2021-12-14 17:59:06,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2121 to 1922. [2021-12-14 17:59:06,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1922 states, 1444 states have (on average 1.3746537396121883) internal successors, (1985), 1463 states have internal predecessors, (1985), 363 states have call successors, (363), 115 states have call predecessors, (363), 114 states have return successors, (361), 361 states have call predecessors, (361), 361 states have call successors, (361) [2021-12-14 17:59:06,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1922 states to 1922 states and 2709 transitions. [2021-12-14 17:59:06,098 INFO L78 Accepts]: Start accepts. Automaton has 1922 states and 2709 transitions. Word has length 51 [2021-12-14 17:59:06,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:59:06,099 INFO L470 AbstractCegarLoop]: Abstraction has 1922 states and 2709 transitions. [2021-12-14 17:59:06,099 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-14 17:59:06,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1922 states and 2709 transitions. [2021-12-14 17:59:06,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-12-14 17:59:06,105 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:59:06,105 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:59:06,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 17:59:06,106 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:59:06,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:59:06,106 INFO L85 PathProgramCache]: Analyzing trace with hash -133518992, now seen corresponding path program 1 times [2021-12-14 17:59:06,107 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:59:06,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756087840] [2021-12-14 17:59:06,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:59:06,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:59:06,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:59:06,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:59:06,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:59:06,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:59:06,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:59:06,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:59:06,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:59:06,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:59:06,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:59:06,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:59:06,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:59:06,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:59:06,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:59:06,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-14 17:59:06,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:59:06,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:59:06,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:59:06,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:59:06,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:59:06,432 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2021-12-14 17:59:06,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:59:06,432 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756087840] [2021-12-14 17:59:06,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756087840] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:59:06,433 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:59:06,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 17:59:06,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027178886] [2021-12-14 17:59:06,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:59:06,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 17:59:06,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:59:06,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 17:59:06,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-14 17:59:06,435 INFO L87 Difference]: Start difference. First operand 1922 states and 2709 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-14 17:59:08,587 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:59:11,650 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:59:13,832 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:59:15,870 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 [] [2021-12-14 17:59:17,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:59:17,047 INFO L93 Difference]: Finished difference Result 6133 states and 8808 transitions. [2021-12-14 17:59:17,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 17:59:17,048 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 71 [2021-12-14 17:59:17,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:59:17,073 INFO L225 Difference]: With dead ends: 6133 [2021-12-14 17:59:17,074 INFO L226 Difference]: Without dead ends: 4216 [2021-12-14 17:59:17,086 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-14 17:59:17,087 INFO L933 BasicCegarLoop]: 1523 mSDtfsCounter, 2279 mSDsluCounter, 2007 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 1060 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2418 SdHoareTripleChecker+Valid, 3530 SdHoareTripleChecker+Invalid, 1903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1060 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2021-12-14 17:59:17,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2418 Valid, 3530 Invalid, 1903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1060 Valid, 839 Invalid, 4 Unknown, 0 Unchecked, 10.4s Time] [2021-12-14 17:59:17,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4216 states. [2021-12-14 17:59:17,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4216 to 3820. [2021-12-14 17:59:17,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3820 states, 2869 states have (on average 1.374346462181945) internal successors, (3943), 2906 states have internal predecessors, (3943), 722 states have call successors, (722), 229 states have call predecessors, (722), 228 states have return successors, (750), 720 states have call predecessors, (750), 720 states have call successors, (750) [2021-12-14 17:59:17,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3820 states to 3820 states and 5415 transitions. [2021-12-14 17:59:17,232 INFO L78 Accepts]: Start accepts. Automaton has 3820 states and 5415 transitions. Word has length 71 [2021-12-14 17:59:17,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 17:59:17,233 INFO L470 AbstractCegarLoop]: Abstraction has 3820 states and 5415 transitions. [2021-12-14 17:59:17,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2021-12-14 17:59:17,234 INFO L276 IsEmpty]: Start isEmpty. Operand 3820 states and 5415 transitions. [2021-12-14 17:59:17,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-12-14 17:59:17,236 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:59:17,236 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 17:59:17,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 17:59:17,237 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:59:17,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:59:17,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1826713808, now seen corresponding path program 1 times [2021-12-14 17:59:17,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:59:17,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014798527] [2021-12-14 17:59:17,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:59:17,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:59:17,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:59:17,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:59:17,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:59:17,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:59:17,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:59:17,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:59:17,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:59:17,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 17:59:17,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:59:17,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:59:17,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:59:17,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 17:59:17,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:59:17,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 17:59:17,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:59:17,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 17:59:17,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:59:17,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-14 17:59:17,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:59:17,471 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-14 17:59:17,472 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:59:17,472 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014798527] [2021-12-14 17:59:17,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014798527] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:59:17,472 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:59:17,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 17:59:17,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370707858] [2021-12-14 17:59:17,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:59:17,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 17:59:17,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:59:17,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 17:59:17,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-12-14 17:59:17,474 INFO L87 Difference]: Start difference. First operand 3820 states and 5415 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-14 17:59:21,068 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:59:23,160 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:59:25,870 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:59:27,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:59:30,250 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:59:32,282 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:59:34,305 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 17:59:36,335 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 [] [2021-12-14 17:59:36,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 17:59:36,747 INFO L93 Difference]: Finished difference Result 11006 states and 15861 transitions. [2021-12-14 17:59:36,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 17:59:36,748 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 82 [2021-12-14 17:59:36,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 17:59:36,788 INFO L225 Difference]: With dead ends: 11006 [2021-12-14 17:59:36,788 INFO L226 Difference]: Without dead ends: 7196 [2021-12-14 17:59:36,808 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-12-14 17:59:36,809 INFO L933 BasicCegarLoop]: 1697 mSDtfsCounter, 1648 mSDsluCounter, 2866 mSDsCounter, 0 mSdLazyCounter, 1286 mSolverCounterSat, 812 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1725 SdHoareTripleChecker+Valid, 4563 SdHoareTripleChecker+Invalid, 2106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 812 IncrementalHoareTripleChecker+Valid, 1286 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.0s IncrementalHoareTripleChecker+Time [2021-12-14 17:59:36,809 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1725 Valid, 4563 Invalid, 2106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [812 Valid, 1286 Invalid, 8 Unknown, 0 Unchecked, 19.0s Time] [2021-12-14 17:59:36,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7196 states.