./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.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 0c3010ce5e1d1499df5a7edf91735fcbf8e6e49f56d21e0e77b6af352c375fd6 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-23 00:09:52,940 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-23 00:09:52,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-23 00:09:53,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-23 00:09:53,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-23 00:09:53,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-23 00:09:53,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-23 00:09:53,024 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-23 00:09:53,027 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-23 00:09:53,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-23 00:09:53,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-23 00:09:53,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-23 00:09:53,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-23 00:09:53,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-23 00:09:53,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-23 00:09:53,042 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-23 00:09:53,043 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-23 00:09:53,045 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-23 00:09:53,046 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-23 00:09:53,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-23 00:09:53,055 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-23 00:09:53,056 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-23 00:09:53,057 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-23 00:09:53,058 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-23 00:09:53,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-23 00:09:53,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-23 00:09:53,062 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-23 00:09:53,063 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-23 00:09:53,064 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-23 00:09:53,064 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-23 00:09:53,065 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-23 00:09:53,066 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-23 00:09:53,067 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-23 00:09:53,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-23 00:09:53,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-23 00:09:53,069 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-23 00:09:53,069 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-23 00:09:53,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-23 00:09:53,070 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-23 00:09:53,071 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-23 00:09:53,072 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-23 00:09:53,073 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-23 00:09:53,074 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-23 00:09:53,110 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-23 00:09:53,110 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-23 00:09:53,111 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-23 00:09:53,111 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-23 00:09:53,112 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-23 00:09:53,112 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-23 00:09:53,112 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-23 00:09:53,113 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-23 00:09:53,113 INFO L138 SettingsManager]: * Use SBE=true [2022-07-23 00:09:53,114 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-23 00:09:53,114 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-23 00:09:53,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-23 00:09:53,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-23 00:09:53,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-23 00:09:53,115 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-23 00:09:53,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-23 00:09:53,115 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-23 00:09:53,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-23 00:09:53,116 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-23 00:09:53,117 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-23 00:09:53,117 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-23 00:09:53,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:09:53,117 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-23 00:09:53,117 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-23 00:09:53,118 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-23 00:09:53,118 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-23 00:09:53,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-23 00:09:53,118 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-23 00:09:53,118 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-23 00:09:53,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-23 00:09:53,119 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c3010ce5e1d1499df5a7edf91735fcbf8e6e49f56d21e0e77b6af352c375fd6 [2022-07-23 00:09:53,369 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-23 00:09:53,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-23 00:09:53,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-23 00:09:53,400 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-23 00:09:53,401 INFO L275 PluginConnector]: CDTParser initialized [2022-07-23 00:09:53,402 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i [2022-07-23 00:09:53,465 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d26864d3/9ec2f9f2e4ec40cf8817e7ddc3a4a225/FLAG1f359760f [2022-07-23 00:09:54,362 INFO L306 CDTParser]: Found 1 translation units. [2022-07-23 00:09:54,363 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i [2022-07-23 00:09:54,416 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d26864d3/9ec2f9f2e4ec40cf8817e7ddc3a4a225/FLAG1f359760f [2022-07-23 00:09:54,860 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0d26864d3/9ec2f9f2e4ec40cf8817e7ddc3a4a225 [2022-07-23 00:09:54,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-23 00:09:54,865 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-23 00:09:54,867 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-23 00:09:54,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-23 00:09:54,871 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-23 00:09:54,872 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:09:54" (1/1) ... [2022-07-23 00:09:54,873 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7db377fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:09:54, skipping insertion in model container [2022-07-23 00:09:54,873 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 12:09:54" (1/1) ... [2022-07-23 00:09:54,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-23 00:09:55,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-23 00:09:55,566 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4571] [2022-07-23 00:09:55,567 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4572-4573] [2022-07-23 00:09:56,157 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i[141860,141873] [2022-07-23 00:09:57,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:09:57,597 INFO L203 MainTranslator]: Completed pre-run [2022-07-23 00:09:57,718 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4571] [2022-07-23 00:09:57,720 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [4572-4573] [2022-07-23 00:09:57,728 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i[141860,141873] [2022-07-23 00:09:58,154 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-23 00:09:58,224 INFO L208 MainTranslator]: Completed translation [2022-07-23 00:09:58,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:09:58 WrapperNode [2022-07-23 00:09:58,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-23 00:09:58,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-23 00:09:58,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-23 00:09:58,227 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-23 00:09:58,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:09:58" (1/1) ... [2022-07-23 00:09:58,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:09:58" (1/1) ... [2022-07-23 00:09:58,567 INFO L137 Inliner]: procedures = 250, calls = 2339, calls flagged for inlining = 129, calls inlined = 127, statements flattened = 6516 [2022-07-23 00:09:58,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-23 00:09:58,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-23 00:09:58,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-23 00:09:58,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-23 00:09:58,577 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:09:58" (1/1) ... [2022-07-23 00:09:58,578 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:09:58" (1/1) ... [2022-07-23 00:09:58,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:09:58" (1/1) ... [2022-07-23 00:09:58,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:09:58" (1/1) ... [2022-07-23 00:09:58,781 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:09:58" (1/1) ... [2022-07-23 00:09:58,801 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:09:58" (1/1) ... [2022-07-23 00:09:58,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:09:58" (1/1) ... [2022-07-23 00:09:58,871 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-23 00:09:58,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-23 00:09:58,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-23 00:09:58,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-23 00:09:58,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:09:58" (1/1) ... [2022-07-23 00:09:58,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-23 00:09:58,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-23 00:09:58,909 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-23 00:09:59,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-23 00:09:59,045 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_cmd_from_context [2022-07-23 00:09:59,045 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_cmd_from_context [2022-07-23 00:09:59,045 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-23 00:09:59,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-23 00:09:59,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-23 00:09:59,046 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-23 00:09:59,046 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-23 00:09:59,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-23 00:09:59,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-23 00:09:59,047 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_delete_hba [2022-07-23 00:09:59,047 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_delete_hba [2022-07-23 00:09:59,047 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2022-07-23 00:09:59,047 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2022-07-23 00:09:59,047 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2022-07-23 00:09:59,047 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2022-07-23 00:09:59,048 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-23 00:09:59,048 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-23 00:09:59,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-23 00:09:59,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-23 00:09:59,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-23 00:09:59,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-23 00:09:59,049 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_status_get [2022-07-23 00:09:59,049 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_status_get [2022-07-23 00:09:59,049 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_build_sys_table [2022-07-23 00:09:59,050 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_build_sys_table [2022-07-23 00:09:59,050 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_bufflen [2022-07-23 00:09:59,050 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_bufflen [2022-07-23 00:09:59,050 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_online_hba [2022-07-23 00:09:59,050 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_online_hba [2022-07-23 00:09:59,050 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_remove_host [2022-07-23 00:09:59,051 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_remove_host [2022-07-23 00:09:59,051 INFO L130 BoogieDeclarations]: Found specification of procedure __scsi_iterate_devices [2022-07-23 00:09:59,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __scsi_iterate_devices [2022-07-23 00:09:59,051 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-23 00:09:59,051 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-23 00:09:59,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-23 00:09:59,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-23 00:09:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_2 [2022-07-23 00:09:59,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_2 [2022-07-23 00:09:59,052 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2022-07-23 00:09:59,053 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2022-07-23 00:09:59,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-23 00:09:59,053 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-23 00:09:59,053 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_query_scalar [2022-07-23 00:09:59,053 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_query_scalar [2022-07-23 00:09:59,054 INFO L130 BoogieDeclarations]: Found specification of procedure dma_high [2022-07-23 00:09:59,054 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_high [2022-07-23 00:09:59,054 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-23 00:09:59,054 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-23 00:09:59,055 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-23 00:09:59,055 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-23 00:09:59,055 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_hba_reset [2022-07-23 00:09:59,056 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_hba_reset [2022-07-23 00:09:59,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-23 00:09:59,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-23 00:09:59,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-23 00:09:59,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-23 00:09:59,057 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2022-07-23 00:09:59,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2022-07-23 00:09:59,058 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-23 00:09:59,058 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-23 00:09:59,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-23 00:09:59,058 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-23 00:09:59,058 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-23 00:09:59,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-23 00:09:59,059 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-23 00:09:59,059 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-23 00:09:59,060 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_lct_get [2022-07-23 00:09:59,060 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_lct_get [2022-07-23 00:09:59,060 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-23 00:09:59,060 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-23 00:09:59,060 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-23 00:09:59,061 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-23 00:09:59,061 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-23 00:09:59,061 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-23 00:09:59,061 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_reparse_lct [2022-07-23 00:09:59,061 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_reparse_lct [2022-07-23 00:09:59,061 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-23 00:09:59,062 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-23 00:09:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_post_wait [2022-07-23 00:09:59,062 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_post_wait [2022-07-23 00:09:59,062 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-23 00:09:59,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-23 00:09:59,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-23 00:09:59,063 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-23 00:09:59,064 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-23 00:09:59,064 INFO L130 BoogieDeclarations]: Found specification of procedure dma_low [2022-07-23 00:09:59,064 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_low [2022-07-23 00:09:59,064 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-23 00:09:59,064 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-23 00:09:59,064 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-23 00:09:59,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-23 00:09:59,066 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_adjust_queue_depth [2022-07-23 00:09:59,066 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_adjust_queue_depth [2022-07-23 00:09:59,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-23 00:09:59,066 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_activate_hba [2022-07-23 00:09:59,067 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_activate_hba [2022-07-23 00:09:59,067 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-07-23 00:09:59,067 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-07-23 00:09:59,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-23 00:09:59,068 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_ioctl [2022-07-23 00:09:59,068 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_ioctl [2022-07-23 00:09:59,068 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_reset_hba [2022-07-23 00:09:59,068 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_reset_hba [2022-07-23 00:09:59,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-23 00:09:59,068 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-23 00:09:59,068 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_read_blink_led [2022-07-23 00:09:59,069 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_read_blink_led [2022-07-23 00:09:59,069 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-23 00:09:59,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-23 00:09:59,070 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-23 00:09:59,070 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-23 00:09:59,070 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-23 00:09:59,071 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-23 00:09:59,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-23 00:09:59,074 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-23 00:09:59,074 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-23 00:09:59,074 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_send_nop [2022-07-23 00:09:59,074 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_send_nop [2022-07-23 00:09:59,076 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-23 00:09:59,077 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-23 00:09:59,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-23 00:09:59,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-23 00:09:59,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-23 00:09:59,083 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_install_device [2022-07-23 00:09:59,083 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_install_device [2022-07-23 00:09:59,084 INFO L130 BoogieDeclarations]: Found specification of procedure dpt_dma64 [2022-07-23 00:09:59,084 INFO L138 BoogieDeclarations]: Found implementation of procedure dpt_dma64 [2022-07-23 00:09:59,084 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-23 00:09:59,084 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-23 00:09:59,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-23 00:09:59,084 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_cmd_to_context [2022-07-23 00:09:59,084 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_cmd_to_context [2022-07-23 00:09:59,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-23 00:09:59,085 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-23 00:09:59,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-23 00:09:59,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-23 00:09:59,086 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-23 00:09:59,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-23 00:09:59,086 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-07-23 00:09:59,086 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-07-23 00:09:59,086 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-23 00:09:59,086 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-23 00:09:59,086 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_set_state [2022-07-23 00:09:59,087 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_set_state [2022-07-23 00:09:59,087 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-07-23 00:09:59,087 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-07-23 00:09:59,087 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_online [2022-07-23 00:09:59,087 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_online [2022-07-23 00:09:59,087 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_post_this [2022-07-23 00:09:59,087 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_post_this [2022-07-23 00:09:59,088 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-23 00:09:59,088 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-23 00:09:59,088 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-07-23 00:09:59,088 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-07-23 00:09:59,088 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_sys_shutdown [2022-07-23 00:09:59,088 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_sys_shutdown [2022-07-23 00:09:59,088 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-23 00:09:59,089 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-23 00:09:59,089 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-23 00:09:59,089 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-23 00:09:59,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-23 00:09:59,089 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_report_hba_unit [2022-07-23 00:09:59,089 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_report_hba_unit [2022-07-23 00:09:59,089 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-07-23 00:09:59,089 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-07-23 00:09:59,090 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-07-23 00:09:59,090 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-07-23 00:09:59,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-23 00:09:59,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-23 00:09:59,090 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-23 00:09:59,090 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-23 00:09:59,953 INFO L234 CfgBuilder]: Building ICFG [2022-07-23 00:09:59,955 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-23 00:10:00,798 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-23 00:10:16,844 INFO L275 CfgBuilder]: Performing block encoding [2022-07-23 00:10:16,867 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-23 00:10:16,867 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-23 00:10:16,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 12:10:16 BoogieIcfgContainer [2022-07-23 00:10:16,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-23 00:10:16,875 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-23 00:10:16,875 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-23 00:10:16,878 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-23 00:10:16,878 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 12:09:54" (1/3) ... [2022-07-23 00:10:16,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@552f2d4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 12:10:16, skipping insertion in model container [2022-07-23 00:10:16,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 12:09:58" (2/3) ... [2022-07-23 00:10:16,879 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@552f2d4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 12:10:16, skipping insertion in model container [2022-07-23 00:10:16,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 12:10:16" (3/3) ... [2022-07-23 00:10:16,881 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--scsi--dpt_i2o.ko-entry_point.cil.out.i [2022-07-23 00:10:16,896 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-23 00:10:16,896 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-23 00:10:16,994 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-23 00:10:17,000 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2e473906, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@9336c7f [2022-07-23 00:10:17,001 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-23 00:10:17,011 INFO L276 IsEmpty]: Start isEmpty. Operand has 2062 states, 1547 states have (on average 1.411764705882353) internal successors, (2184), 1571 states have internal predecessors, (2184), 437 states have call successors, (437), 77 states have call predecessors, (437), 76 states have return successors, (431), 430 states have call predecessors, (431), 431 states have call successors, (431) [2022-07-23 00:10:17,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-23 00:10:17,029 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:10:17,030 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2022-07-23 00:10:17,031 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:10:17,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:10:17,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1281370987, now seen corresponding path program 1 times [2022-07-23 00:10:17,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:10:17,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445624050] [2022-07-23 00:10:17,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:10:17,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:10:17,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:10:17,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:10:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:10:17,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 00:10:17,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:10:17,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 00:10:17,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:10:17,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-23 00:10:17,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:10:17,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-23 00:10:17,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:10:17,744 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-23 00:10:17,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:10:17,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445624050] [2022-07-23 00:10:17,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445624050] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:10:17,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:10:17,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-23 00:10:17,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518695889] [2022-07-23 00:10:17,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:10:17,752 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-23 00:10:17,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:10:17,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-23 00:10:17,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-23 00:10:17,789 INFO L87 Difference]: Start difference. First operand has 2062 states, 1547 states have (on average 1.411764705882353) internal successors, (2184), 1571 states have internal predecessors, (2184), 437 states have call successors, (437), 77 states have call predecessors, (437), 76 states have return successors, (431), 430 states have call predecessors, (431), 431 states have call successors, (431) Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-23 00:10:21,625 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 [] [2022-07-23 00:10:25,939 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:10:27,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:10:33,549 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:10:34,842 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:10:42,220 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 [] [2022-07-23 00:10:44,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:10:44,964 INFO L93 Difference]: Finished difference Result 6914 states and 10727 transitions. [2022-07-23 00:10:44,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-23 00:10:44,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 58 [2022-07-23 00:10:44,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:10:45,049 INFO L225 Difference]: With dead ends: 6914 [2022-07-23 00:10:45,050 INFO L226 Difference]: Without dead ends: 4806 [2022-07-23 00:10:45,088 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-23 00:10:45,092 INFO L413 NwaCegarLoop]: 3230 mSDtfsCounter, 5161 mSDsluCounter, 4968 mSDsCounter, 0 mSdLazyCounter, 4277 mSolverCounterSat, 2827 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5522 SdHoareTripleChecker+Valid, 8198 SdHoareTripleChecker+Invalid, 7109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2827 IncrementalHoareTripleChecker+Valid, 4277 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.4s IncrementalHoareTripleChecker+Time [2022-07-23 00:10:45,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5522 Valid, 8198 Invalid, 7109 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2827 Valid, 4277 Invalid, 5 Unknown, 0 Unchecked, 26.4s Time] [2022-07-23 00:10:45,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4806 states. [2022-07-23 00:10:45,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4806 to 3741. [2022-07-23 00:10:45,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3741 states, 2810 states have (on average 1.383629893238434) internal successors, (3888), 2839 states have internal predecessors, (3888), 789 states have call successors, (789), 142 states have call predecessors, (789), 141 states have return successors, (788), 786 states have call predecessors, (788), 788 states have call successors, (788) [2022-07-23 00:10:45,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3741 states to 3741 states and 5465 transitions. [2022-07-23 00:10:45,438 INFO L78 Accepts]: Start accepts. Automaton has 3741 states and 5465 transitions. Word has length 58 [2022-07-23 00:10:45,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:10:45,440 INFO L495 AbstractCegarLoop]: Abstraction has 3741 states and 5465 transitions. [2022-07-23 00:10:45,440 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-23 00:10:45,440 INFO L276 IsEmpty]: Start isEmpty. Operand 3741 states and 5465 transitions. [2022-07-23 00:10:45,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-23 00:10:45,452 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:10:45,452 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:10:45,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-23 00:10:45,453 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:10:45,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:10:45,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1620564797, now seen corresponding path program 1 times [2022-07-23 00:10:45,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:10:45,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402924068] [2022-07-23 00:10:45,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:10:45,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:10:45,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:10:45,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:10:45,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:10:45,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 00:10:45,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:10:45,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 00:10:45,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:10:45,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-23 00:10:45,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:10:45,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-23 00:10:45,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:10:45,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-23 00:10:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:10:46,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 00:10:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:10:46,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-23 00:10:46,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:10:46,016 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-23 00:10:46,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:10:46,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402924068] [2022-07-23 00:10:46,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402924068] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:10:46,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:10:46,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-23 00:10:46,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176718227] [2022-07-23 00:10:46,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:10:46,019 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-23 00:10:46,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:10:46,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-23 00:10:46,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-23 00:10:46,020 INFO L87 Difference]: Start difference. First operand 3741 states and 5465 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (14), 7 states have call predecessors, (14), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-23 00:10:48,462 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:10:51,429 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:10:57,943 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:11:03,660 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:11:05,697 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:11:12,509 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:11:14,615 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:11:16,761 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:11:18,899 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:11:21,490 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:11:23,636 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:11:25,735 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:11:29,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:11:29,096 INFO L93 Difference]: Finished difference Result 10446 states and 16250 transitions. [2022-07-23 00:11:29,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-23 00:11:29,097 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (14), 7 states have call predecessors, (14), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2022-07-23 00:11:29,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:11:29,198 INFO L225 Difference]: With dead ends: 10446 [2022-07-23 00:11:29,199 INFO L226 Difference]: Without dead ends: 10443 [2022-07-23 00:11:29,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-07-23 00:11:29,216 INFO L413 NwaCegarLoop]: 3611 mSDtfsCounter, 7154 mSDsluCounter, 6812 mSDsCounter, 0 mSdLazyCounter, 6852 mSolverCounterSat, 4325 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7594 SdHoareTripleChecker+Valid, 10423 SdHoareTripleChecker+Invalid, 11187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4325 IncrementalHoareTripleChecker+Valid, 6852 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.2s IncrementalHoareTripleChecker+Time [2022-07-23 00:11:29,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7594 Valid, 10423 Invalid, 11187 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4325 Valid, 6852 Invalid, 10 Unknown, 0 Unchecked, 42.2s Time] [2022-07-23 00:11:29,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10443 states. [2022-07-23 00:11:29,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10443 to 7641. [2022-07-23 00:11:29,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7641 states, 5719 states have (on average 1.3901031648889666) internal successors, (7950), 5783 states have internal predecessors, (7950), 1627 states have call successors, (1627), 271 states have call predecessors, (1627), 294 states have return successors, (1964), 1632 states have call predecessors, (1964), 1626 states have call successors, (1964) [2022-07-23 00:11:29,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7641 states to 7641 states and 11541 transitions. [2022-07-23 00:11:29,742 INFO L78 Accepts]: Start accepts. Automaton has 7641 states and 11541 transitions. Word has length 84 [2022-07-23 00:11:29,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:11:29,744 INFO L495 AbstractCegarLoop]: Abstraction has 7641 states and 11541 transitions. [2022-07-23 00:11:29,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 3 states have internal predecessors, (53), 3 states have call successors, (14), 7 states have call predecessors, (14), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-07-23 00:11:29,745 INFO L276 IsEmpty]: Start isEmpty. Operand 7641 states and 11541 transitions. [2022-07-23 00:11:29,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-23 00:11:29,766 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:11:29,766 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:11:29,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-23 00:11:29,766 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:11:29,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:11:29,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1234917850, now seen corresponding path program 1 times [2022-07-23 00:11:29,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:11:29,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138526633] [2022-07-23 00:11:29,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:11:29,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:11:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:11:29,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:11:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:11:29,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 00:11:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:11:30,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 00:11:30,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:11:30,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-23 00:11:30,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:11:30,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-23 00:11:30,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:11:30,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-23 00:11:30,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:11:30,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-23 00:11:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:11:30,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-23 00:11:30,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:11:30,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-23 00:11:30,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:11:30,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-23 00:11:30,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:11:30,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-23 00:11:30,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:11:30,108 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-23 00:11:30,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:11:30,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138526633] [2022-07-23 00:11:30,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138526633] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:11:30,109 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:11:30,109 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-23 00:11:30,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800755741] [2022-07-23 00:11:30,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:11:30,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-23 00:11:30,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:11:30,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-23 00:11:30,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-23 00:11:30,113 INFO L87 Difference]: Start difference. First operand 7641 states and 11541 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-23 00:11:33,908 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 [] [2022-07-23 00:11:38,249 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:11:40,302 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:11:44,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:11:55,278 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:12:00,236 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 [] [2022-07-23 00:12:03,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:12:03,701 INFO L93 Difference]: Finished difference Result 28515 states and 44312 transitions. [2022-07-23 00:12:03,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-23 00:12:03,702 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2022-07-23 00:12:03,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:12:03,908 INFO L225 Difference]: With dead ends: 28515 [2022-07-23 00:12:03,908 INFO L226 Difference]: Without dead ends: 20885 [2022-07-23 00:12:03,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2022-07-23 00:12:03,990 INFO L413 NwaCegarLoop]: 3213 mSDtfsCounter, 8072 mSDsluCounter, 6346 mSDsCounter, 0 mSdLazyCounter, 6256 mSolverCounterSat, 5421 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8554 SdHoareTripleChecker+Valid, 9559 SdHoareTripleChecker+Invalid, 11682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5421 IncrementalHoareTripleChecker+Valid, 6256 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.3s IncrementalHoareTripleChecker+Time [2022-07-23 00:12:03,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8554 Valid, 9559 Invalid, 11682 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5421 Valid, 6256 Invalid, 5 Unknown, 0 Unchecked, 32.3s Time] [2022-07-23 00:12:04,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20885 states. [2022-07-23 00:12:04,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20885 to 16042. [2022-07-23 00:12:04,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16042 states, 12181 states have (on average 1.3951235530744601) internal successors, (16994), 12308 states have internal predecessors, (16994), 3282 states have call successors, (3282), 492 states have call predecessors, (3282), 578 states have return successors, (4014), 3327 states have call predecessors, (4014), 3281 states have call successors, (4014) [2022-07-23 00:12:05,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16042 states to 16042 states and 24290 transitions. [2022-07-23 00:12:05,115 INFO L78 Accepts]: Start accepts. Automaton has 16042 states and 24290 transitions. Word has length 103 [2022-07-23 00:12:05,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:12:05,116 INFO L495 AbstractCegarLoop]: Abstraction has 16042 states and 24290 transitions. [2022-07-23 00:12:05,117 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 3 states have internal predecessors, (64), 2 states have call successors, (17), 5 states have call predecessors, (17), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-23 00:12:05,117 INFO L276 IsEmpty]: Start isEmpty. Operand 16042 states and 24290 transitions. [2022-07-23 00:12:05,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-23 00:12:05,131 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:12:05,131 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:12:05,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-23 00:12:05,132 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:12:05,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:12:05,132 INFO L85 PathProgramCache]: Analyzing trace with hash 206450330, now seen corresponding path program 1 times [2022-07-23 00:12:05,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:12:05,133 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931790587] [2022-07-23 00:12:05,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:12:05,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:12:05,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:12:05,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:12:05,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:12:05,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 00:12:05,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:12:05,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 00:12:05,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:12:05,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-23 00:12:05,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:12:05,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-23 00:12:05,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:12:05,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:12:05,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:12:05,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 00:12:05,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:12:05,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-23 00:12:05,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:12:05,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-23 00:12:05,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:12:05,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 00:12:05,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:12:05,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-23 00:12:05,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:12:05,594 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-23 00:12:05,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:12:05,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931790587] [2022-07-23 00:12:05,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931790587] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:12:05,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:12:05,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-23 00:12:05,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939110537] [2022-07-23 00:12:05,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:12:05,596 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 00:12:05,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:12:05,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 00:12:05,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-23 00:12:05,597 INFO L87 Difference]: Start difference. First operand 16042 states and 24290 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 5 states have internal predecessors, (75), 4 states have call successors, (17), 8 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-07-23 00:12:11,337 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:12:14,045 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:12:23,515 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:12:25,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:12:34,325 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:12:36,838 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:12:50,476 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:12:52,592 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:12:55,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:06,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-23 00:13:06,241 INFO L93 Difference]: Finished difference Result 62607 states and 99395 transitions. [2022-07-23 00:13:06,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-07-23 00:13:06,242 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 5 states have internal predecessors, (75), 4 states have call successors, (17), 8 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) Word has length 114 [2022-07-23 00:13:06,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-23 00:13:06,916 INFO L225 Difference]: With dead ends: 62607 [2022-07-23 00:13:06,916 INFO L226 Difference]: Without dead ends: 46585 [2022-07-23 00:13:07,065 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=382, Invalid=1178, Unknown=0, NotChecked=0, Total=1560 [2022-07-23 00:13:07,068 INFO L413 NwaCegarLoop]: 3703 mSDtfsCounter, 12558 mSDsluCounter, 14280 mSDsCounter, 0 mSdLazyCounter, 16512 mSolverCounterSat, 5989 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12970 SdHoareTripleChecker+Valid, 17983 SdHoareTripleChecker+Invalid, 22508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5989 IncrementalHoareTripleChecker+Valid, 16512 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.2s IncrementalHoareTripleChecker+Time [2022-07-23 00:13:07,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12970 Valid, 17983 Invalid, 22508 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5989 Valid, 16512 Invalid, 7 Unknown, 0 Unchecked, 57.2s Time] [2022-07-23 00:13:07,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46585 states. [2022-07-23 00:13:09,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46585 to 31941. [2022-07-23 00:13:10,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31941 states, 24238 states have (on average 1.3944632395412162) internal successors, (33799), 24540 states have internal predecessors, (33799), 6536 states have call successors, (6536), 977 states have call predecessors, (6536), 1166 states have return successors, (8364), 6595 states have call predecessors, (8364), 6535 states have call successors, (8364) [2022-07-23 00:13:10,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31941 states to 31941 states and 48699 transitions. [2022-07-23 00:13:10,397 INFO L78 Accepts]: Start accepts. Automaton has 31941 states and 48699 transitions. Word has length 114 [2022-07-23 00:13:10,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-23 00:13:10,400 INFO L495 AbstractCegarLoop]: Abstraction has 31941 states and 48699 transitions. [2022-07-23 00:13:10,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 5 states have internal predecessors, (75), 4 states have call successors, (17), 8 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-07-23 00:13:10,400 INFO L276 IsEmpty]: Start isEmpty. Operand 31941 states and 48699 transitions. [2022-07-23 00:13:10,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-23 00:13:10,419 INFO L187 NwaCegarLoop]: Found error trace [2022-07-23 00:13:10,419 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-23 00:13:10,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-23 00:13:10,420 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-23 00:13:10,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-23 00:13:10,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1832344265, now seen corresponding path program 1 times [2022-07-23 00:13:10,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-23 00:13:10,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079704802] [2022-07-23 00:13:10,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-23 00:13:10,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-23 00:13:10,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:10,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-23 00:13:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:10,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-23 00:13:10,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:10,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-23 00:13:10,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:10,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-23 00:13:10,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:10,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-23 00:13:10,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:10,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-23 00:13:10,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:10,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-23 00:13:10,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:10,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-23 00:13:10,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:10,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-23 00:13:10,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:10,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-23 00:13:10,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:10,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-23 00:13:10,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-23 00:13:10,826 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-23 00:13:10,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-23 00:13:10,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079704802] [2022-07-23 00:13:10,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079704802] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-23 00:13:10,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-23 00:13:10,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-23 00:13:10,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026042524] [2022-07-23 00:13:10,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-23 00:13:10,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-23 00:13:10,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-23 00:13:10,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-23 00:13:10,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-23 00:13:10,829 INFO L87 Difference]: Start difference. First operand 31941 states and 48699 transitions. Second operand has 11 states, 11 states have (on average 6.909090909090909) internal successors, (76), 5 states have internal predecessors, (76), 4 states have call successors, (17), 8 states have call predecessors, (17), 2 states have return successors, (11), 4 states have call predecessors, (11), 4 states have call successors, (11) [2022-07-23 00:13:18,420 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:25,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:27,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:34,500 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:36,816 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:50,807 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:52,921 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:55,035 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-23 00:13:57,149 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 []