./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 f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-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-?-f4b24e3 [2022-07-14 00:34:16,155 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:34:16,157 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:34:16,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:34:16,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:34:16,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:34:16,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:34:16,192 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:34:16,193 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:34:16,198 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:34:16,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:34:16,199 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:34:16,199 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:34:16,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:34:16,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:34:16,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:34:16,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:34:16,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:34:16,206 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:34:16,207 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:34:16,208 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:34:16,211 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:34:16,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:34:16,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:34:16,213 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:34:16,215 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:34:16,215 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:34:16,215 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:34:16,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:34:16,216 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:34:16,216 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:34:16,217 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:34:16,217 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:34:16,218 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:34:16,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:34:16,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:34:16,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:34:16,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:34:16,220 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:34:16,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:34:16,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:34:16,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:34:16,223 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 00:34:16,239 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:34:16,240 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:34:16,240 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:34:16,240 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:34:16,241 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:34:16,241 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:34:16,241 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:34:16,241 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:34:16,242 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:34:16,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:34:16,242 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 00:34:16,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:34:16,243 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:34:16,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:34:16,243 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:34:16,243 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:34:16,243 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:34:16,243 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:34:16,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:34:16,244 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:34:16,244 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:34:16,244 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:34:16,244 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:34:16,244 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:34:16,244 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:34:16,245 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 00:34:16,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 00:34:16,245 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:34:16,245 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:34:16,245 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:34:16,245 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c3010ce5e1d1499df5a7edf91735fcbf8e6e49f56d21e0e77b6af352c375fd6 [2022-07-14 00:34:16,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:34:16,428 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:34:16,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:34:16,431 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:34:16,431 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:34:16,432 INFO L432 ainManager$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 [2022-07-14 00:34:16,484 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9bd79dc2/bce218ebfcd54f0294f12c98cc7191b8/FLAG97af59a52 [2022-07-14 00:34:17,070 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:34:17,071 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 [2022-07-14 00:34:17,101 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9bd79dc2/bce218ebfcd54f0294f12c98cc7191b8/FLAG97af59a52 [2022-07-14 00:34:17,260 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9bd79dc2/bce218ebfcd54f0294f12c98cc7191b8 [2022-07-14 00:34:17,262 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:34:17,263 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:34:17,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:34:17,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:34:17,265 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:34:17,266 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:34:17" (1/1) ... [2022-07-14 00:34:17,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@780583a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:34:17, skipping insertion in model container [2022-07-14 00:34:17,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:34:17" (1/1) ... [2022-07-14 00:34:17,277 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:34:17,347 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:34:17,736 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4571] [2022-07-14 00:34:17,737 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] [2022-07-14 00:34:18,197 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] [2022-07-14 00:34:19,324 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:34:19,353 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:34:19,415 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [4571] [2022-07-14 00:34:19,416 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] [2022-07-14 00:34:19,423 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] [2022-07-14 00:34:19,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:34:19,806 INFO L208 MainTranslator]: Completed translation [2022-07-14 00:34:19,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:34:19 WrapperNode [2022-07-14 00:34:19,807 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 00:34:19,808 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 00:34:19,808 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 00:34:19,808 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 00:34:19,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:34:19" (1/1) ... [2022-07-14 00:34:19,886 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:34:19" (1/1) ... [2022-07-14 00:34:20,056 INFO L137 Inliner]: procedures = 250, calls = 2339, calls flagged for inlining = 129, calls inlined = 127, statements flattened = 6516 [2022-07-14 00:34:20,058 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 00:34:20,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 00:34:20,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 00:34:20,067 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 00:34:20,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:34:19" (1/1) ... [2022-07-14 00:34:20,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:34:19" (1/1) ... [2022-07-14 00:34:20,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:34:19" (1/1) ... [2022-07-14 00:34:20,113 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:34:19" (1/1) ... [2022-07-14 00:34:20,221 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:34:19" (1/1) ... [2022-07-14 00:34:20,244 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:34:19" (1/1) ... [2022-07-14 00:34:20,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:34:19" (1/1) ... [2022-07-14 00:34:20,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 00:34:20,298 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 00:34:20,298 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 00:34:20,298 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 00:34:20,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:34:19" (1/1) ... [2022-07-14 00:34:20,304 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:34:20,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:34:20,322 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-14 00:34:20,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 00:34:20,385 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_cmd_from_context [2022-07-14 00:34:20,386 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_cmd_from_context [2022-07-14 00:34:20,386 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-14 00:34:20,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 00:34:20,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 00:34:20,386 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-14 00:34:20,386 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-14 00:34:20,386 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 00:34:20,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 00:34:20,387 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_delete_hba [2022-07-14 00:34:20,387 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_delete_hba [2022-07-14 00:34:20,387 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromio [2022-07-14 00:34:20,387 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromio [2022-07-14 00:34:20,387 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2022-07-14 00:34:20,387 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2022-07-14 00:34:20,387 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-14 00:34:20,388 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-14 00:34:20,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-14 00:34:20,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-14 00:34:20,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 00:34:20,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 00:34:20,388 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_status_get [2022-07-14 00:34:20,388 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_status_get [2022-07-14 00:34:20,388 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_build_sys_table [2022-07-14 00:34:20,389 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_build_sys_table [2022-07-14 00:34:20,389 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_bufflen [2022-07-14 00:34:20,389 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_bufflen [2022-07-14 00:34:20,389 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_online_hba [2022-07-14 00:34:20,389 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_online_hba [2022-07-14 00:34:20,389 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_remove_host [2022-07-14 00:34:20,389 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_remove_host [2022-07-14 00:34:20,390 INFO L130 BoogieDeclarations]: Found specification of procedure __scsi_iterate_devices [2022-07-14 00:34:20,390 INFO L138 BoogieDeclarations]: Found implementation of procedure __scsi_iterate_devices [2022-07-14 00:34:20,390 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-14 00:34:20,391 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-14 00:34:20,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 00:34:20,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 00:34:20,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize_scsi_host_template_2 [2022-07-14 00:34:20,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize_scsi_host_template_2 [2022-07-14 00:34:20,391 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2022-07-14 00:34:20,391 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2022-07-14 00:34:20,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 00:34:20,392 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 00:34:20,392 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_query_scalar [2022-07-14 00:34:20,392 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_query_scalar [2022-07-14 00:34:20,392 INFO L130 BoogieDeclarations]: Found specification of procedure dma_high [2022-07-14 00:34:20,392 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_high [2022-07-14 00:34:20,392 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 00:34:20,392 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 00:34:20,393 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-14 00:34:20,393 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-14 00:34:20,393 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_hba_reset [2022-07-14 00:34:20,394 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_hba_reset [2022-07-14 00:34:20,394 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 00:34:20,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 00:34:20,395 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-14 00:34:20,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-14 00:34:20,395 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2022-07-14 00:34:20,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2022-07-14 00:34:20,395 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-14 00:34:20,395 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-14 00:34:20,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 00:34:20,395 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-14 00:34:20,396 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-14 00:34:20,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 00:34:20,396 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2022-07-14 00:34:20,396 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2022-07-14 00:34:20,396 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_lct_get [2022-07-14 00:34:20,396 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_lct_get [2022-07-14 00:34:20,396 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-07-14 00:34:20,396 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-07-14 00:34:20,397 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-14 00:34:20,397 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-14 00:34:20,397 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-14 00:34:20,397 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-14 00:34:20,397 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_reparse_lct [2022-07-14 00:34:20,397 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_reparse_lct [2022-07-14 00:34:20,397 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-14 00:34:20,397 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-14 00:34:20,398 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_post_wait [2022-07-14 00:34:20,398 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_post_wait [2022-07-14 00:34:20,398 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-14 00:34:20,398 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-14 00:34:20,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-14 00:34:20,398 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2022-07-14 00:34:20,399 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2022-07-14 00:34:20,399 INFO L130 BoogieDeclarations]: Found specification of procedure dma_low [2022-07-14 00:34:20,399 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_low [2022-07-14 00:34:20,399 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-14 00:34:20,399 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-14 00:34:20,400 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-14 00:34:20,400 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-14 00:34:20,400 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_adjust_queue_depth [2022-07-14 00:34:20,400 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_adjust_queue_depth [2022-07-14 00:34:20,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-14 00:34:20,401 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_activate_hba [2022-07-14 00:34:20,401 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_activate_hba [2022-07-14 00:34:20,401 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2022-07-14 00:34:20,402 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2022-07-14 00:34:20,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 00:34:20,402 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_ioctl [2022-07-14 00:34:20,402 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_ioctl [2022-07-14 00:34:20,402 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_reset_hba [2022-07-14 00:34:20,402 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_reset_hba [2022-07-14 00:34:20,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 00:34:20,402 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 00:34:20,403 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_read_blink_led [2022-07-14 00:34:20,403 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_read_blink_led [2022-07-14 00:34:20,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-14 00:34:20,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-14 00:34:20,403 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_dma_mask [2022-07-14 00:34:20,404 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_dma_mask [2022-07-14 00:34:20,404 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 00:34:20,404 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 00:34:20,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 00:34:20,406 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-14 00:34:20,406 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-14 00:34:20,406 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_send_nop [2022-07-14 00:34:20,407 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_send_nop [2022-07-14 00:34:20,408 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-14 00:34:20,409 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-14 00:34:20,409 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 00:34:20,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 00:34:20,409 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 00:34:20,413 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_install_device [2022-07-14 00:34:20,413 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_install_device [2022-07-14 00:34:20,413 INFO L130 BoogieDeclarations]: Found specification of procedure dpt_dma64 [2022-07-14 00:34:20,414 INFO L138 BoogieDeclarations]: Found implementation of procedure dpt_dma64 [2022-07-14 00:34:20,414 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-14 00:34:20,414 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-14 00:34:20,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 00:34:20,414 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_cmd_to_context [2022-07-14 00:34:20,414 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_cmd_to_context [2022-07-14 00:34:20,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 00:34:20,414 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-14 00:34:20,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-14 00:34:20,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-14 00:34:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 00:34:20,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-14 00:34:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2022-07-14 00:34:20,415 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2022-07-14 00:34:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-14 00:34:20,415 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-14 00:34:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_set_state [2022-07-14 00:34:20,415 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_set_state [2022-07-14 00:34:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2022-07-14 00:34:20,416 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2022-07-14 00:34:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_online [2022-07-14 00:34:20,416 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_online [2022-07-14 00:34:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_post_this [2022-07-14 00:34:20,416 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_post_this [2022-07-14 00:34:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-14 00:34:20,416 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-14 00:34:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2022-07-14 00:34:20,416 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2022-07-14 00:34:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_sys_shutdown [2022-07-14 00:34:20,417 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_sys_shutdown [2022-07-14 00:34:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2022-07-14 00:34:20,417 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2022-07-14 00:34:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2022-07-14 00:34:20,418 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2022-07-14 00:34:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 00:34:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure adpt_i2o_report_hba_unit [2022-07-14 00:34:20,418 INFO L138 BoogieDeclarations]: Found implementation of procedure adpt_i2o_report_hba_unit [2022-07-14 00:34:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_uninterruptible [2022-07-14 00:34:20,418 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_uninterruptible [2022-07-14 00:34:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2022-07-14 00:34:20,418 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2022-07-14 00:34:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 00:34:20,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 00:34:20,419 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-14 00:34:20,419 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-14 00:34:21,136 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 00:34:21,144 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 00:34:21,835 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 00:34:32,505 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 00:34:32,529 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 00:34:32,530 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 00:34:32,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:34:32 BoogieIcfgContainer [2022-07-14 00:34:32,535 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 00:34:32,537 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 00:34:32,537 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 00:34:32,540 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 00:34:32,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:34:17" (1/3) ... [2022-07-14 00:34:32,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d32261f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:34:32, skipping insertion in model container [2022-07-14 00:34:32,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:34:19" (2/3) ... [2022-07-14 00:34:32,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d32261f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:34:32, skipping insertion in model container [2022-07-14 00:34:32,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:34:32" (3/3) ... [2022-07-14 00:34:32,542 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 [2022-07-14 00:34:32,553 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 00:34:32,553 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 00:34:32,615 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 00:34:32,620 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@d9ecb6e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@37ba00e3 [2022-07-14 00:34:32,620 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 00:34:32,628 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) [2022-07-14 00:34:32,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-14 00:34:32,642 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:34:32,643 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] [2022-07-14 00:34:32,643 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:34:32,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:34:32,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1281370987, now seen corresponding path program 1 times [2022-07-14 00:34:32,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:34:32,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420777630] [2022-07-14 00:34:32,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:34:32,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:34:33,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:33,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:34:33,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:33,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:34:33,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:33,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:34:33,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:33,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:34:33,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:33,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-14 00:34:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:33,220 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-14 00:34:33,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:34:33,221 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420777630] [2022-07-14 00:34:33,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420777630] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:34:33,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:34:33,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:34:33,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832757244] [2022-07-14 00:34:33,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:34:33,226 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:34:33,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:34:33,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:34:33,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:34:33,252 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) [2022-07-14 00:34:36,543 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 [] [2022-07-14 00:34:40,518 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:34:42,562 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:34:44,479 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:34:48,967 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:34:55,704 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 [] [2022-07-14 00:34:58,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:34:58,108 INFO L93 Difference]: Finished difference Result 6914 states and 10727 transitions. [2022-07-14 00:34:58,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:34:58,110 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 [2022-07-14 00:34:58,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:34:58,165 INFO L225 Difference]: With dead ends: 6914 [2022-07-14 00:34:58,166 INFO L226 Difference]: Without dead ends: 4806 [2022-07-14 00:34:58,191 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-14 00:34:58,193 INFO L413 NwaCegarLoop]: 3229 mSDtfsCounter, 5160 mSDsluCounter, 4966 mSDsCounter, 0 mSdLazyCounter, 4273 mSolverCounterSat, 2824 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5520 SdHoareTripleChecker+Valid, 8195 SdHoareTripleChecker+Invalid, 7101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2824 IncrementalHoareTripleChecker+Valid, 4273 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:34:58,196 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5520 Valid, 8195 Invalid, 7101 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2824 Valid, 4273 Invalid, 4 Unknown, 0 Unchecked, 24.2s Time] [2022-07-14 00:34:58,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4806 states. [2022-07-14 00:34:58,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4806 to 3741. [2022-07-14 00:34:58,414 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) [2022-07-14 00:34:58,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3741 states to 3741 states and 5465 transitions. [2022-07-14 00:34:58,445 INFO L78 Accepts]: Start accepts. Automaton has 3741 states and 5465 transitions. Word has length 58 [2022-07-14 00:34:58,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:34:58,446 INFO L495 AbstractCegarLoop]: Abstraction has 3741 states and 5465 transitions. [2022-07-14 00:34:58,446 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) [2022-07-14 00:34:58,446 INFO L276 IsEmpty]: Start isEmpty. Operand 3741 states and 5465 transitions. [2022-07-14 00:34:58,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-14 00:34:58,452 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:34:58,452 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] [2022-07-14 00:34:58,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 00:34:58,453 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:34:58,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:34:58,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1620564797, now seen corresponding path program 1 times [2022-07-14 00:34:58,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:34:58,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043123697] [2022-07-14 00:34:58,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:34:58,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:34:58,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:58,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:34:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:58,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:34:58,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:58,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:34:58,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:58,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:34:58,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:58,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 00:34:58,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:58,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-14 00:34:58,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:58,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 00:34:58,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:58,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-14 00:34:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:34:58,802 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-14 00:34:58,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:34:58,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043123697] [2022-07-14 00:34:58,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043123697] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:34:58,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:34:58,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 00:34:58,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058687946] [2022-07-14 00:34:58,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:34:58,805 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 00:34:58,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:34:58,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 00:34:58,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:34:58,806 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) [2022-07-14 00:35:01,282 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 [] [2022-07-14 00:35:04,776 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:35:09,539 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:35:11,577 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:35:14,455 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:35:18,051 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:35:25,426 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:35:27,593 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:35:30,077 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:35:32,232 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:35:34,403 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:35:36,569 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:35:38,687 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:35:42,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:35:42,963 INFO L93 Difference]: Finished difference Result 10446 states and 16250 transitions. [2022-07-14 00:35:42,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 00:35:42,964 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 [2022-07-14 00:35:42,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:35:43,036 INFO L225 Difference]: With dead ends: 10446 [2022-07-14 00:35:43,037 INFO L226 Difference]: Without dead ends: 10443 [2022-07-14 00:35:43,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2022-07-14 00:35:43,049 INFO L413 NwaCegarLoop]: 3609 mSDtfsCounter, 7154 mSDsluCounter, 6812 mSDsCounter, 0 mSdLazyCounter, 6844 mSolverCounterSat, 4323 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7597 SdHoareTripleChecker+Valid, 10421 SdHoareTripleChecker+Invalid, 11177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4323 IncrementalHoareTripleChecker+Valid, 6844 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:35:43,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7597 Valid, 10421 Invalid, 11177 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4323 Valid, 6844 Invalid, 10 Unknown, 0 Unchecked, 43.2s Time] [2022-07-14 00:35:43,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10443 states. [2022-07-14 00:35:43,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10443 to 7641. [2022-07-14 00:35:43,385 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) [2022-07-14 00:35:43,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7641 states to 7641 states and 11541 transitions. [2022-07-14 00:35:43,448 INFO L78 Accepts]: Start accepts. Automaton has 7641 states and 11541 transitions. Word has length 84 [2022-07-14 00:35:43,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:35:43,450 INFO L495 AbstractCegarLoop]: Abstraction has 7641 states and 11541 transitions. [2022-07-14 00:35:43,451 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) [2022-07-14 00:35:43,451 INFO L276 IsEmpty]: Start isEmpty. Operand 7641 states and 11541 transitions. [2022-07-14 00:35:43,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-07-14 00:35:43,461 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:35:43,462 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] [2022-07-14 00:35:43,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 00:35:43,462 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:35:43,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:35:43,462 INFO L85 PathProgramCache]: Analyzing trace with hash -1234917850, now seen corresponding path program 1 times [2022-07-14 00:35:43,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:35:43,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463512280] [2022-07-14 00:35:43,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:35:43,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:35:43,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:43,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:35:43,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:43,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:35:43,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:43,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:35:43,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:43,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:35:43,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:43,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:35:43,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:43,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-14 00:35:43,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:43,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-14 00:35:43,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:43,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-14 00:35:43,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:43,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-14 00:35:43,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:43,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-07-14 00:35:43,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:43,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-14 00:35:43,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:35:43,734 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-14 00:35:43,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:35:43,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463512280] [2022-07-14 00:35:43,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463512280] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:35:43,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:35:43,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:35:43,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207133531] [2022-07-14 00:35:43,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:35:43,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:35:43,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:35:43,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:35:43,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:35:43,737 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) [2022-07-14 00:35:47,409 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:35:51,302 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:35:53,356 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:35:55,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:35:59,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:36:07,227 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:36:09,377 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:36:13,345 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:36:16,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:36:16,579 INFO L93 Difference]: Finished difference Result 28515 states and 44312 transitions. [2022-07-14 00:36:16,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-14 00:36:16,591 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 [2022-07-14 00:36:16,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:36:16,777 INFO L225 Difference]: With dead ends: 28515 [2022-07-14 00:36:16,777 INFO L226 Difference]: Without dead ends: 20885 [2022-07-14 00:36:16,831 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 [2022-07-14 00:36:16,834 INFO L413 NwaCegarLoop]: 3214 mSDtfsCounter, 8072 mSDsluCounter, 6346 mSDsCounter, 0 mSdLazyCounter, 6248 mSolverCounterSat, 5425 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8553 SdHoareTripleChecker+Valid, 9560 SdHoareTripleChecker+Invalid, 11679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5425 IncrementalHoareTripleChecker+Valid, 6248 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.8s IncrementalHoareTripleChecker+Time [2022-07-14 00:36:16,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8553 Valid, 9560 Invalid, 11679 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5425 Valid, 6248 Invalid, 6 Unknown, 0 Unchecked, 31.8s Time] [2022-07-14 00:36:16,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20885 states. [2022-07-14 00:36:17,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20885 to 16042. [2022-07-14 00:36:17,487 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) [2022-07-14 00:36:17,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16042 states to 16042 states and 24290 transitions. [2022-07-14 00:36:17,573 INFO L78 Accepts]: Start accepts. Automaton has 16042 states and 24290 transitions. Word has length 103 [2022-07-14 00:36:17,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:36:17,573 INFO L495 AbstractCegarLoop]: Abstraction has 16042 states and 24290 transitions. [2022-07-14 00:36:17,574 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) [2022-07-14 00:36:17,574 INFO L276 IsEmpty]: Start isEmpty. Operand 16042 states and 24290 transitions. [2022-07-14 00:36:17,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-14 00:36:17,583 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:36:17,583 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] [2022-07-14 00:36:17,584 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 00:36:17,584 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:36:17,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:36:17,584 INFO L85 PathProgramCache]: Analyzing trace with hash 206450330, now seen corresponding path program 1 times [2022-07-14 00:36:17,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:36:17,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959315076] [2022-07-14 00:36:17,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:36:17,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:36:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:17,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:36:17,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:17,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:36:17,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:17,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:36:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:17,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:36:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:17,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-14 00:36:17,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:17,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:36:17,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:17,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 00:36:17,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:17,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-07-14 00:36:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:17,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2022-07-14 00:36:17,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:17,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 00:36:17,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:17,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-14 00:36:17,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:36:17,900 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-14 00:36:17,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:36:17,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959315076] [2022-07-14 00:36:17,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959315076] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:36:17,901 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:36:17,901 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 00:36:17,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864914223] [2022-07-14 00:36:17,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:36:17,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 00:36:17,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:36:17,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 00:36:17,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-14 00:36:17,904 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) [2022-07-14 00:36:25,025 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:36:32,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:36:34,193 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:36:36,240 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:36:55,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:36:57,489 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:36:59,665 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:37:01,835 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:37:04,676 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:37:06,805 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:37:08,964 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 [] [2022-07-14 00:37:16,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:37:16,864 INFO L93 Difference]: Finished difference Result 62607 states and 99395 transitions. [2022-07-14 00:37:16,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-07-14 00:37:16,865 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 [2022-07-14 00:37:16,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:37:17,294 INFO L225 Difference]: With dead ends: 62607 [2022-07-14 00:37:17,295 INFO L226 Difference]: Without dead ends: 46585 [2022-07-14 00:37:17,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=382, Invalid=1178, Unknown=0, NotChecked=0, Total=1560 [2022-07-14 00:37:17,394 INFO L413 NwaCegarLoop]: 3702 mSDtfsCounter, 12557 mSDsluCounter, 14280 mSDsCounter, 0 mSdLazyCounter, 16524 mSolverCounterSat, 5994 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 51.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12970 SdHoareTripleChecker+Valid, 17982 SdHoareTripleChecker+Invalid, 22528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5994 IncrementalHoareTripleChecker+Valid, 16524 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:37:17,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12970 Valid, 17982 Invalid, 22528 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5994 Valid, 16524 Invalid, 10 Unknown, 0 Unchecked, 56.0s Time] [2022-07-14 00:37:17,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46585 states. [2022-07-14 00:37:18,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46585 to 31941. [2022-07-14 00:37:18,981 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) [2022-07-14 00:37:19,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31941 states to 31941 states and 48699 transitions. [2022-07-14 00:37:19,223 INFO L78 Accepts]: Start accepts. Automaton has 31941 states and 48699 transitions. Word has length 114 [2022-07-14 00:37:19,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:37:19,223 INFO L495 AbstractCegarLoop]: Abstraction has 31941 states and 48699 transitions. [2022-07-14 00:37:19,224 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) [2022-07-14 00:37:19,224 INFO L276 IsEmpty]: Start isEmpty. Operand 31941 states and 48699 transitions. [2022-07-14 00:37:19,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-14 00:37:19,239 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:37:19,239 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] [2022-07-14 00:37:19,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 00:37:19,239 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:37:19,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:37:19,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1832344265, now seen corresponding path program 1 times [2022-07-14 00:37:19,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:37:19,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511024622] [2022-07-14 00:37:19,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:37:19,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:37:19,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:19,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:37:19,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:19,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:37:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:19,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:37:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:19,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:37:19,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:19,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:37:19,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:19,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:37:19,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:19,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 00:37:19,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:19,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-14 00:37:19,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:19,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-14 00:37:19,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:19,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 00:37:19,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:19,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-14 00:37:19,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:37:19,542 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-14 00:37:19,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:37:19,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511024622] [2022-07-14 00:37:19,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511024622] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:37:19,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:37:19,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 00:37:19,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810215521] [2022-07-14 00:37:19,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:37:19,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 00:37:19,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:37:19,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 00:37:19,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-14 00:37:19,544 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) [2022-07-14 00:37:25,830 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 [] [2022-07-14 00:37:31,505 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:37:33,551 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:37:40,355 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:37:41,486 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:37:53,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:37:55,334 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:37:57,508 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:37:59,676 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:38:07,073 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:38:09,233 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:38:15,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:38:15,042 INFO L93 Difference]: Finished difference Result 124882 states and 199970 transitions. [2022-07-14 00:38:15,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-07-14 00:38:15,043 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 115 [2022-07-14 00:38:15,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:38:15,571 INFO L225 Difference]: With dead ends: 124882 [2022-07-14 00:38:15,571 INFO L226 Difference]: Without dead ends: 92961 [2022-07-14 00:38:15,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=382, Invalid=1178, Unknown=0, NotChecked=0, Total=1560 [2022-07-14 00:38:15,900 INFO L413 NwaCegarLoop]: 3134 mSDtfsCounter, 12843 mSDsluCounter, 11873 mSDsCounter, 0 mSdLazyCounter, 15644 mSolverCounterSat, 6256 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13257 SdHoareTripleChecker+Valid, 15007 SdHoareTripleChecker+Invalid, 21909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6256 IncrementalHoareTripleChecker+Valid, 15644 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.3s IncrementalHoareTripleChecker+Time [2022-07-14 00:38:15,900 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13257 Valid, 15007 Invalid, 21909 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6256 Valid, 15644 Invalid, 9 Unknown, 0 Unchecked, 50.3s Time] [2022-07-14 00:38:15,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92961 states. [2022-07-14 00:38:18,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92961 to 63787. [2022-07-14 00:38:18,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63787 states, 48400 states have (on average 1.3937396694214876) internal successors, (67457), 49020 states have internal predecessors, (67457), 13044 states have call successors, (13044), 1947 states have call predecessors, (13044), 2342 states have return successors, (17461), 13163 states have call predecessors, (17461), 13043 states have call successors, (17461) [2022-07-14 00:38:19,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63787 states to 63787 states and 97962 transitions. [2022-07-14 00:38:19,278 INFO L78 Accepts]: Start accepts. Automaton has 63787 states and 97962 transitions. Word has length 115 [2022-07-14 00:38:19,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:38:19,279 INFO L495 AbstractCegarLoop]: Abstraction has 63787 states and 97962 transitions. [2022-07-14 00:38:19,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2022-07-14 00:38:19,279 INFO L276 IsEmpty]: Start isEmpty. Operand 63787 states and 97962 transitions. [2022-07-14 00:38:19,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-14 00:38:19,290 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:38:19,290 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, 1] [2022-07-14 00:38:19,291 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 00:38:19,291 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:38:19,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:38:19,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1955327233, now seen corresponding path program 1 times [2022-07-14 00:38:19,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:38:19,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920257444] [2022-07-14 00:38:19,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:38:19,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:38:19,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:38:19,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:38:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:38:19,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:38:19,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:38:19,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:38:19,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:38:19,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-14 00:38:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:38:19,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-14 00:38:19,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:38:19,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:38:19,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:38:19,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 00:38:19,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:38:19,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 00:38:19,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:38:19,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2022-07-14 00:38:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:38:19,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-14 00:38:19,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:38:19,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-07-14 00:38:19,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:38:19,514 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-07-14 00:38:19,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:38:19,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920257444] [2022-07-14 00:38:19,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920257444] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:38:19,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:38:19,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-14 00:38:19,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636715225] [2022-07-14 00:38:19,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:38:19,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 00:38:19,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:38:19,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 00:38:19,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-14 00:38:19,516 INFO L87 Difference]: Start difference. First operand 63787 states and 97962 transitions. Second operand has 11 states, 11 states have (on average 7.0) internal successors, (77), 5 states have internal predecessors, (77), 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) [2022-07-14 00:38:25,203 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:38:30,370 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []