./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.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 2689726c89c7be154f3b0bf0875aa4770854a9a3388665dc7aff0604f303b757 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 04:13:49,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 04:13:49,211 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 04:13:49,239 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 04:13:49,239 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 04:13:49,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 04:13:49,243 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 04:13:49,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 04:13:49,248 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 04:13:49,251 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 04:13:49,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 04:13:49,255 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 04:13:49,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 04:13:49,257 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 04:13:49,258 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 04:13:49,260 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 04:13:49,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 04:13:49,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 04:13:49,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 04:13:49,267 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 04:13:49,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 04:13:49,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 04:13:49,270 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 04:13:49,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 04:13:49,275 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 04:13:49,276 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 04:13:49,276 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 04:13:49,277 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 04:13:49,277 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 04:13:49,278 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 04:13:49,278 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 04:13:49,279 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 04:13:49,280 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 04:13:49,280 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 04:13:49,281 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 04:13:49,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 04:13:49,282 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 04:13:49,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 04:13:49,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 04:13:49,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 04:13:49,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 04:13:49,286 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 04:13:49,323 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 04:13:49,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 04:13:49,324 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 04:13:49,324 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 04:13:49,325 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 04:13:49,325 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 04:13:49,326 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 04:13:49,326 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 04:13:49,326 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 04:13:49,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 04:13:49,327 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 04:13:49,327 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 04:13:49,327 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 04:13:49,328 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 04:13:49,328 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 04:13:49,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 04:13:49,328 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 04:13:49,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 04:13:49,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 04:13:49,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 04:13:49,329 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 04:13:49,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:13:49,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 04:13:49,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 04:13:49,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 04:13:49,329 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 04:13:49,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 04:13:49,330 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 04:13:49,336 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 04:13:49,336 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 04:13:49,336 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2689726c89c7be154f3b0bf0875aa4770854a9a3388665dc7aff0604f303b757 [2021-12-28 04:13:49,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 04:13:49,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 04:13:49,643 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 04:13:49,644 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 04:13:49,645 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 04:13:49,646 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i [2021-12-28 04:13:49,704 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0839b368/729e252943d049349b85266378d83149/FLAGc11f301bf [2021-12-28 04:13:50,351 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 04:13:50,352 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i [2021-12-28 04:13:50,384 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0839b368/729e252943d049349b85266378d83149/FLAGc11f301bf [2021-12-28 04:13:50,493 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0839b368/729e252943d049349b85266378d83149 [2021-12-28 04:13:50,495 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 04:13:50,497 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 04:13:50,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 04:13:50,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 04:13:50,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 04:13:50,503 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:13:50" (1/1) ... [2021-12-28 04:13:50,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e107025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:13:50, skipping insertion in model container [2021-12-28 04:13:50,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:13:50" (1/1) ... [2021-12-28 04:13:50,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 04:13:50,638 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 04:13:52,224 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i[258393,258406] [2021-12-28 04:13:52,287 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:13:52,367 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 04:13:52,891 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i[258393,258406] [2021-12-28 04:13:52,906 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:13:53,082 INFO L208 MainTranslator]: Completed translation [2021-12-28 04:13:53,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:13:53 WrapperNode [2021-12-28 04:13:53,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 04:13:53,085 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 04:13:53,085 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 04:13:53,086 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 04:13:53,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:13:53" (1/1) ... [2021-12-28 04:13:53,198 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:13:53" (1/1) ... [2021-12-28 04:13:53,376 INFO L137 Inliner]: procedures = 303, calls = 3661, calls flagged for inlining = 138, calls inlined = 95, statements flattened = 4833 [2021-12-28 04:13:53,377 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 04:13:53,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 04:13:53,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 04:13:53,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 04:13:53,384 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:13:53" (1/1) ... [2021-12-28 04:13:53,384 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:13:53" (1/1) ... [2021-12-28 04:13:53,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:13:53" (1/1) ... [2021-12-28 04:13:53,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:13:53" (1/1) ... [2021-12-28 04:13:53,491 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:13:53" (1/1) ... [2021-12-28 04:13:53,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:13:53" (1/1) ... [2021-12-28 04:13:53,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:13:53" (1/1) ... [2021-12-28 04:13:53,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 04:13:53,606 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 04:13:53,606 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 04:13:53,606 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 04:13:53,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:13:53" (1/1) ... [2021-12-28 04:13:53,612 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:13:53,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:13:53,651 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-28 04:13:53,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-28 04:13:53,700 INFO L130 BoogieDeclarations]: Found specification of procedure rio_uevent [2021-12-28 04:13:53,700 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_uevent [2021-12-28 04:13:53,700 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2021-12-28 04:13:53,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2021-12-28 04:13:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 04:13:53,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 04:13:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-28 04:13:53,701 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-28 04:13:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 04:13:53,701 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 04:13:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2021-12-28 04:13:53,701 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2021-12-28 04:13:53,701 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2021-12-28 04:13:53,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2021-12-28 04:13:53,702 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2021-12-28 04:13:53,702 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2021-12-28 04:13:53,702 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-28 04:13:53,702 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-28 04:13:53,702 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 04:13:53,702 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 04:13:53,702 INFO L130 BoogieDeclarations]: Found specification of procedure rio_read_config_16 [2021-12-28 04:13:53,702 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_read_config_16 [2021-12-28 04:13:53,703 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2021-12-28 04:13:53,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2021-12-28 04:13:53,703 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-28 04:13:53,703 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-28 04:13:53,703 INFO L130 BoogieDeclarations]: Found specification of procedure rio_device_remove [2021-12-28 04:13:53,703 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_device_remove [2021-12-28 04:13:53,703 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 04:13:53,703 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 04:13:53,704 INFO L130 BoogieDeclarations]: Found specification of procedure bus_scan_store [2021-12-28 04:13:53,704 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_scan_store [2021-12-28 04:13:53,704 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 04:13:53,704 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 04:13:53,704 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2021-12-28 04:13:53,704 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2021-12-28 04:13:53,704 INFO L130 BoogieDeclarations]: Found specification of procedure disc_work_handler [2021-12-28 04:13:53,704 INFO L138 BoogieDeclarations]: Found implementation of procedure disc_work_handler [2021-12-28 04:13:53,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 04:13:53,705 INFO L130 BoogieDeclarations]: Found specification of procedure rio_dev_put [2021-12-28 04:13:53,705 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_dev_put [2021-12-28 04:13:53,705 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 04:13:53,705 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_1 [2021-12-28 04:13:53,705 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_1 [2021-12-28 04:13:53,705 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 04:13:53,705 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 04:13:53,705 INFO L130 BoogieDeclarations]: Found specification of procedure rio_write_config_16 [2021-12-28 04:13:53,706 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_write_config_16 [2021-12-28 04:13:53,706 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 04:13:53,706 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 04:13:53,706 INFO L130 BoogieDeclarations]: Found specification of procedure rio_mport_read_config_32 [2021-12-28 04:13:53,706 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_mport_read_config_32 [2021-12-28 04:13:53,706 INFO L130 BoogieDeclarations]: Found specification of procedure rio_mport_write_config_32 [2021-12-28 04:13:53,706 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_mport_write_config_32 [2021-12-28 04:13:53,706 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2021-12-28 04:13:53,707 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2021-12-28 04:13:53,707 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2021-12-28 04:13:53,707 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2021-12-28 04:13:53,707 INFO L130 BoogieDeclarations]: Found specification of procedure rio_name [2021-12-28 04:13:53,707 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_name [2021-12-28 04:13:53,707 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-28 04:13:53,707 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-28 04:13:53,707 INFO L130 BoogieDeclarations]: Found specification of procedure rio_device_probe [2021-12-28 04:13:53,707 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_device_probe [2021-12-28 04:13:53,708 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-28 04:13:53,708 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-28 04:13:53,708 INFO L130 BoogieDeclarations]: Found specification of procedure rio_write_config_32 [2021-12-28 04:13:53,708 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_write_config_32 [2021-12-28 04:13:53,708 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2021-12-28 04:13:53,708 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2021-12-28 04:13:53,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 04:13:53,708 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~~u16~0~X~~u8~0~X~~u32~0~X~int~X~~u32~0~TO~int [2021-12-28 04:13:53,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~~u16~0~X~~u8~0~X~~u32~0~X~int~X~~u32~0~TO~int [2021-12-28 04:13:53,709 INFO L130 BoogieDeclarations]: Found specification of procedure rio_dev_get [2021-12-28 04:13:53,709 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_dev_get [2021-12-28 04:13:53,709 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 04:13:53,709 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 04:13:53,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 04:13:53,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 04:13:53,709 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 04:13:53,709 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-28 04:13:53,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-28 04:13:53,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 04:13:53,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-28 04:13:53,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-28 04:13:53,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 04:13:53,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 04:13:53,710 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-28 04:13:53,710 INFO L130 BoogieDeclarations]: Found specification of procedure release_resource [2021-12-28 04:13:53,710 INFO L138 BoogieDeclarations]: Found implementation of procedure release_resource [2021-12-28 04:13:53,711 INFO L130 BoogieDeclarations]: Found specification of procedure rio_read_config_8 [2021-12-28 04:13:53,711 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_read_config_8 [2021-12-28 04:13:53,711 INFO L130 BoogieDeclarations]: Found specification of procedure rio_match_bus [2021-12-28 04:13:53,711 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_match_bus [2021-12-28 04:13:53,711 INFO L130 BoogieDeclarations]: Found specification of procedure rio_read_config_32 [2021-12-28 04:13:53,711 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_read_config_32 [2021-12-28 04:13:53,711 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_1 [2021-12-28 04:13:53,711 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_1 [2021-12-28 04:13:53,712 INFO L130 BoogieDeclarations]: Found specification of procedure rio_match_device [2021-12-28 04:13:53,712 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_match_device [2021-12-28 04:13:53,712 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-28 04:13:53,712 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-28 04:13:53,712 INFO L130 BoogieDeclarations]: Found specification of procedure rio_write_config_8 [2021-12-28 04:13:53,712 INFO L138 BoogieDeclarations]: Found implementation of procedure rio_write_config_8 [2021-12-28 04:13:53,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 04:13:53,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 04:13:53,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 04:13:53,713 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~~u16~0~X~~u8~0~X~~u32~0~X~int~X~$Pointer$~TO~int [2021-12-28 04:13:53,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~~u16~0~X~~u8~0~X~~u32~0~X~int~X~$Pointer$~TO~int [2021-12-28 04:13:54,379 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 04:13:54,381 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 04:13:54,508 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 04:13:57,524 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 04:13:57,533 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 04:13:57,534 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 04:13:57,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:13:57 BoogieIcfgContainer [2021-12-28 04:13:57,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 04:13:57,537 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 04:13:57,537 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 04:13:57,539 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 04:13:57,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:13:50" (1/3) ... [2021-12-28 04:13:57,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0f9dc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:13:57, skipping insertion in model container [2021-12-28 04:13:57,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:13:53" (2/3) ... [2021-12-28 04:13:57,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b0f9dc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:13:57, skipping insertion in model container [2021-12-28 04:13:57,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:13:57" (3/3) ... [2021-12-28 04:13:57,542 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--rapidio--rapidio.ko-entry_point.cil.out.i [2021-12-28 04:13:57,545 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 04:13:57,545 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 04:13:57,580 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 04:13:57,585 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 04:13:57,585 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 04:13:57,614 INFO L276 IsEmpty]: Start isEmpty. Operand has 918 states, 672 states have (on average 1.375) internal successors, (924), 703 states have internal predecessors, (924), 197 states have call successors, (197), 48 states have call predecessors, (197), 47 states have return successors, (177), 176 states have call predecessors, (177), 177 states have call successors, (177) [2021-12-28 04:13:57,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-28 04:13:57,622 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:13:57,623 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:13:57,624 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:13:57,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:13:57,628 INFO L85 PathProgramCache]: Analyzing trace with hash 1336601579, now seen corresponding path program 1 times [2021-12-28 04:13:57,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:13:57,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038762234] [2021-12-28 04:13:57,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:13:57,637 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:13:57,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:13:58,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:13:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:13:58,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:13:58,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:13:58,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:13:58,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:13:58,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:13:58,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:13:58,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:13:58,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:13:58,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:13:58,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:13:58,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:13:58,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:13:58,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:13:58,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:13:58,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:13:58,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:13:58,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:13:58,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:13:58,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:13:58,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:13:58,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:13:58,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:13:58,447 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-12-28 04:13:58,448 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:13:58,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038762234] [2021-12-28 04:13:58,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038762234] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:13:58,449 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:13:58,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 04:13:58,451 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157722] [2021-12-28 04:13:58,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:13:58,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 04:13:58,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:13:58,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 04:13:58,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-28 04:13:58,483 INFO L87 Difference]: Start difference. First operand has 918 states, 672 states have (on average 1.375) internal successors, (924), 703 states have internal predecessors, (924), 197 states have call successors, (197), 48 states have call predecessors, (197), 47 states have return successors, (177), 176 states have call predecessors, (177), 177 states have call successors, (177) Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-28 04:13:59,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:13:59,667 INFO L93 Difference]: Finished difference Result 1960 states and 2881 transitions. [2021-12-28 04:13:59,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 04:13:59,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 84 [2021-12-28 04:13:59,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:13:59,684 INFO L225 Difference]: With dead ends: 1960 [2021-12-28 04:13:59,684 INFO L226 Difference]: Without dead ends: 1020 [2021-12-28 04:13:59,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-28 04:13:59,697 INFO L933 BasicCegarLoop]: 1210 mSDtfsCounter, 402 mSDsluCounter, 1371 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 2581 SdHoareTripleChecker+Invalid, 668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 236 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2021-12-28 04:13:59,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [460 Valid, 2581 Invalid, 668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [236 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2021-12-28 04:13:59,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states. [2021-12-28 04:13:59,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 891. [2021-12-28 04:13:59,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 891 states, 667 states have (on average 1.343328335832084) internal successors, (896), 676 states have internal predecessors, (896), 177 states have call successors, (177), 47 states have call predecessors, (177), 46 states have return successors, (175), 174 states have call predecessors, (175), 175 states have call successors, (175) [2021-12-28 04:13:59,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 891 states to 891 states and 1248 transitions. [2021-12-28 04:13:59,784 INFO L78 Accepts]: Start accepts. Automaton has 891 states and 1248 transitions. Word has length 84 [2021-12-28 04:13:59,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:13:59,784 INFO L470 AbstractCegarLoop]: Abstraction has 891 states and 1248 transitions. [2021-12-28 04:13:59,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-28 04:13:59,785 INFO L276 IsEmpty]: Start isEmpty. Operand 891 states and 1248 transitions. [2021-12-28 04:13:59,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-12-28 04:13:59,787 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:13:59,788 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:13:59,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 04:13:59,788 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:13:59,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:13:59,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1250671603, now seen corresponding path program 1 times [2021-12-28 04:13:59,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:13:59,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384946636] [2021-12-28 04:13:59,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:13:59,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:13:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:00,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:14:00,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:00,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:00,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:00,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:00,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:00,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:14:00,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:00,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:00,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:00,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:00,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:00,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:14:00,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:00,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:00,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:00,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:00,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:14:00,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:00,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:00,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:00,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:00,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:00,131 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-12-28 04:14:00,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:14:00,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384946636] [2021-12-28 04:14:00,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384946636] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:14:00,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:14:00,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 04:14:00,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031072502] [2021-12-28 04:14:00,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:14:00,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 04:14:00,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:14:00,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 04:14:00,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:14:00,135 INFO L87 Difference]: Start difference. First operand 891 states and 1248 transitions. Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-28 04:14:01,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:14:01,954 INFO L93 Difference]: Finished difference Result 2882 states and 4084 transitions. [2021-12-28 04:14:01,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:14:01,955 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 84 [2021-12-28 04:14:01,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:14:01,968 INFO L225 Difference]: With dead ends: 2882 [2021-12-28 04:14:01,969 INFO L226 Difference]: Without dead ends: 2003 [2021-12-28 04:14:01,973 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-28 04:14:01,975 INFO L933 BasicCegarLoop]: 1295 mSDtfsCounter, 2414 mSDsluCounter, 1757 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 1085 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2530 SdHoareTripleChecker+Valid, 3052 SdHoareTripleChecker+Invalid, 1930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1085 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-28 04:14:01,975 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2530 Valid, 3052 Invalid, 1930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1085 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-28 04:14:01,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2003 states. [2021-12-28 04:14:02,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2003 to 1742. [2021-12-28 04:14:02,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1742 states, 1306 states have (on average 1.346094946401225) internal successors, (1758), 1323 states have internal predecessors, (1758), 343 states have call successors, (343), 93 states have call predecessors, (343), 92 states have return successors, (341), 339 states have call predecessors, (341), 341 states have call successors, (341) [2021-12-28 04:14:02,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1742 states to 1742 states and 2442 transitions. [2021-12-28 04:14:02,060 INFO L78 Accepts]: Start accepts. Automaton has 1742 states and 2442 transitions. Word has length 84 [2021-12-28 04:14:02,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:14:02,060 INFO L470 AbstractCegarLoop]: Abstraction has 1742 states and 2442 transitions. [2021-12-28 04:14:02,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-28 04:14:02,061 INFO L276 IsEmpty]: Start isEmpty. Operand 1742 states and 2442 transitions. [2021-12-28 04:14:02,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-12-28 04:14:02,065 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:14:02,065 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:14:02,065 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 04:14:02,065 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:14:02,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:14:02,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1903541710, now seen corresponding path program 1 times [2021-12-28 04:14:02,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:14:02,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1245642854] [2021-12-28 04:14:02,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:14:02,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:14:02,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:02,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:14:02,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:02,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:02,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:02,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:02,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:02,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:14:02,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:02,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:02,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:02,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:02,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:02,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:14:02,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:02,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:02,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:02,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:02,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:14:02,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:02,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:02,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:02,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:02,535 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-12-28 04:14:02,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:14:02,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1245642854] [2021-12-28 04:14:02,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1245642854] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:14:02,536 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:14:02,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 04:14:02,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515703706] [2021-12-28 04:14:02,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:14:02,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 04:14:02,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:14:02,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 04:14:02,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-28 04:14:02,539 INFO L87 Difference]: Start difference. First operand 1742 states and 2442 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-28 04:14:04,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:14:04,757 INFO L93 Difference]: Finished difference Result 5715 states and 8191 transitions. [2021-12-28 04:14:04,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 04:14:04,759 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 90 [2021-12-28 04:14:04,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:14:04,776 INFO L225 Difference]: With dead ends: 5715 [2021-12-28 04:14:04,776 INFO L226 Difference]: Without dead ends: 3982 [2021-12-28 04:14:04,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-28 04:14:04,788 INFO L933 BasicCegarLoop]: 1310 mSDtfsCounter, 1973 mSDsluCounter, 2420 mSDsCounter, 0 mSdLazyCounter, 1035 mSolverCounterSat, 654 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2087 SdHoareTripleChecker+Valid, 3730 SdHoareTripleChecker+Invalid, 1689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 654 IncrementalHoareTripleChecker+Valid, 1035 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2021-12-28 04:14:04,791 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2087 Valid, 3730 Invalid, 1689 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [654 Valid, 1035 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2021-12-28 04:14:04,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3982 states. [2021-12-28 04:14:04,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3982 to 3490. [2021-12-28 04:14:04,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3490 states, 2611 states have (on average 1.3466104940635772) internal successors, (3516), 2654 states have internal predecessors, (3516), 688 states have call successors, (688), 185 states have call predecessors, (688), 190 states have return successors, (746), 684 states have call predecessors, (746), 686 states have call successors, (746) [2021-12-28 04:14:04,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3490 states to 3490 states and 4950 transitions. [2021-12-28 04:14:04,947 INFO L78 Accepts]: Start accepts. Automaton has 3490 states and 4950 transitions. Word has length 90 [2021-12-28 04:14:04,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:14:04,947 INFO L470 AbstractCegarLoop]: Abstraction has 3490 states and 4950 transitions. [2021-12-28 04:14:04,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (7), 4 states have call predecessors, (7), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-28 04:14:04,948 INFO L276 IsEmpty]: Start isEmpty. Operand 3490 states and 4950 transitions. [2021-12-28 04:14:04,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-28 04:14:04,951 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:14:04,952 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:14:04,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 04:14:04,952 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:14:04,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:14:04,953 INFO L85 PathProgramCache]: Analyzing trace with hash -842548841, now seen corresponding path program 1 times [2021-12-28 04:14:04,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:14:04,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325169059] [2021-12-28 04:14:04,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:14:04,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:14:05,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:05,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:14:05,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:05,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:05,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:05,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:05,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:05,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:14:05,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:05,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:05,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:05,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:05,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:05,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:14:05,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:05,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:05,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:05,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:05,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:05,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:14:05,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:05,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:05,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:05,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:05,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:05,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 04:14:05,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:05,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-28 04:14:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:05,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 04:14:05,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:05,416 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-12-28 04:14:05,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:14:05,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325169059] [2021-12-28 04:14:05,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325169059] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:14:05,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:14:05,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:14:05,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811710534] [2021-12-28 04:14:05,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:14:05,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:14:05,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:14:05,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:14:05,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:14:05,419 INFO L87 Difference]: Start difference. First operand 3490 states and 4950 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-28 04:14:08,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:14:08,738 INFO L93 Difference]: Finished difference Result 12186 states and 17575 transitions. [2021-12-28 04:14:08,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-28 04:14:08,739 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 117 [2021-12-28 04:14:08,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:14:08,778 INFO L225 Difference]: With dead ends: 12186 [2021-12-28 04:14:08,779 INFO L226 Difference]: Without dead ends: 8708 [2021-12-28 04:14:08,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-12-28 04:14:08,795 INFO L933 BasicCegarLoop]: 1248 mSDtfsCounter, 3381 mSDsluCounter, 2547 mSDsCounter, 0 mSdLazyCounter, 2178 mSolverCounterSat, 1674 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3546 SdHoareTripleChecker+Valid, 3795 SdHoareTripleChecker+Invalid, 3852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1674 IncrementalHoareTripleChecker+Valid, 2178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-12-28 04:14:08,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3546 Valid, 3795 Invalid, 3852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1674 Valid, 2178 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-12-28 04:14:08,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8708 states. [2021-12-28 04:14:09,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8708 to 7416. [2021-12-28 04:14:09,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7416 states, 5555 states have (on average 1.3414941494149415) internal successors, (7452), 5634 states have internal predecessors, (7452), 1464 states have call successors, (1464), 369 states have call predecessors, (1464), 396 states have return successors, (1654), 1484 states have call predecessors, (1654), 1462 states have call successors, (1654) [2021-12-28 04:14:09,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7416 states to 7416 states and 10570 transitions. [2021-12-28 04:14:09,188 INFO L78 Accepts]: Start accepts. Automaton has 7416 states and 10570 transitions. Word has length 117 [2021-12-28 04:14:09,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:14:09,189 INFO L470 AbstractCegarLoop]: Abstraction has 7416 states and 10570 transitions. [2021-12-28 04:14:09,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 3 states have internal predecessors, (56), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-28 04:14:09,189 INFO L276 IsEmpty]: Start isEmpty. Operand 7416 states and 10570 transitions. [2021-12-28 04:14:09,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2021-12-28 04:14:09,193 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:14:09,193 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:14:09,193 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 04:14:09,194 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:14:09,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:14:09,195 INFO L85 PathProgramCache]: Analyzing trace with hash -433745165, now seen corresponding path program 1 times [2021-12-28 04:14:09,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:14:09,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757837027] [2021-12-28 04:14:09,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:14:09,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:14:09,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:09,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:14:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:09,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:09,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:09,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:09,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:09,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:14:09,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:09,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:09,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:09,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:09,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:09,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:14:09,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:09,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:09,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:09,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:09,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:09,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:14:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:09,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:09,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:09,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:09,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:09,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 04:14:09,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:09,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-12-28 04:14:09,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:09,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-28 04:14:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:09,594 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-12-28 04:14:09,594 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:14:09,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757837027] [2021-12-28 04:14:09,595 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757837027] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:14:09,595 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:14:09,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-28 04:14:09,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400036784] [2021-12-28 04:14:09,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:14:09,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 04:14:09,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:14:09,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 04:14:09,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-28 04:14:09,597 INFO L87 Difference]: Start difference. First operand 7416 states and 10570 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-28 04:14:12,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:14:12,952 INFO L93 Difference]: Finished difference Result 24024 states and 34643 transitions. [2021-12-28 04:14:12,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-28 04:14:12,953 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 129 [2021-12-28 04:14:12,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:14:13,050 INFO L225 Difference]: With dead ends: 24024 [2021-12-28 04:14:13,051 INFO L226 Difference]: Without dead ends: 16620 [2021-12-28 04:14:13,082 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2021-12-28 04:14:13,083 INFO L933 BasicCegarLoop]: 1465 mSDtfsCounter, 3061 mSDsluCounter, 2713 mSDsCounter, 0 mSdLazyCounter, 2257 mSolverCounterSat, 1560 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3225 SdHoareTripleChecker+Valid, 4178 SdHoareTripleChecker+Invalid, 3817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1560 IncrementalHoareTripleChecker+Valid, 2257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2021-12-28 04:14:13,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3225 Valid, 4178 Invalid, 3817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1560 Valid, 2257 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-12-28 04:14:13,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16620 states. [2021-12-28 04:14:13,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16620 to 14208. [2021-12-28 04:14:13,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14208 states, 10627 states have (on average 1.336595464383175) internal successors, (14204), 10774 states have internal predecessors, (14204), 2814 states have call successors, (2814), 713 states have call predecessors, (2814), 766 states have return successors, (3184), 2856 states have call predecessors, (3184), 2812 states have call successors, (3184) [2021-12-28 04:14:13,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14208 states to 14208 states and 20202 transitions. [2021-12-28 04:14:13,728 INFO L78 Accepts]: Start accepts. Automaton has 14208 states and 20202 transitions. Word has length 129 [2021-12-28 04:14:13,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:14:13,729 INFO L470 AbstractCegarLoop]: Abstraction has 14208 states and 20202 transitions. [2021-12-28 04:14:13,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (13), 5 states have call predecessors, (13), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-28 04:14:13,730 INFO L276 IsEmpty]: Start isEmpty. Operand 14208 states and 20202 transitions. [2021-12-28 04:14:13,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2021-12-28 04:14:13,735 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:14:13,735 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:14:13,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 04:14:13,736 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:14:13,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:14:13,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1354239815, now seen corresponding path program 1 times [2021-12-28 04:14:13,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:14:13,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600914765] [2021-12-28 04:14:13,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:14:13,737 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:14:13,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:13,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:14:13,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:14,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:14,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:14,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:14,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:14,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:14:14,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:14,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:14,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:14,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:14,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:14,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:14:14,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:14,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:14,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:14,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:14,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:14:14,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:14,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:14,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:14,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:14,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:14,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 04:14:14,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:14,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:14,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:14,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:14,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:14,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 04:14:14,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:14,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:14,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:14,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:14,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:14,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-28 04:14:14,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:14,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:14,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:14,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-28 04:14:14,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:14,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-28 04:14:14,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:14,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-28 04:14:14,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:14,253 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-12-28 04:14:14,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:14:14,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600914765] [2021-12-28 04:14:14,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600914765] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:14:14,255 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:14:14,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 04:14:14,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501723549] [2021-12-28 04:14:14,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:14:14,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 04:14:14,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:14:14,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 04:14:14,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-28 04:14:14,257 INFO L87 Difference]: Start difference. First operand 14208 states and 20202 transitions. Second operand has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-28 04:14:17,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:14:17,238 INFO L93 Difference]: Finished difference Result 40932 states and 58357 transitions. [2021-12-28 04:14:17,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-28 04:14:17,238 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 167 [2021-12-28 04:14:17,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:14:17,344 INFO L225 Difference]: With dead ends: 40932 [2021-12-28 04:14:17,344 INFO L226 Difference]: Without dead ends: 26736 [2021-12-28 04:14:17,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-12-28 04:14:17,395 INFO L933 BasicCegarLoop]: 1450 mSDtfsCounter, 2544 mSDsluCounter, 2814 mSDsCounter, 0 mSdLazyCounter, 2058 mSolverCounterSat, 1538 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2691 SdHoareTripleChecker+Valid, 4264 SdHoareTripleChecker+Invalid, 3596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1538 IncrementalHoareTripleChecker+Valid, 2058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-28 04:14:17,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2691 Valid, 4264 Invalid, 3596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1538 Valid, 2058 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-28 04:14:17,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26736 states. [2021-12-28 04:14:18,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26736 to 23652. [2021-12-28 04:14:18,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23652 states, 17741 states have (on average 1.3345358209796516) internal successors, (23676), 17944 states have internal predecessors, (23676), 4610 states have call successors, (4610), 1223 states have call predecessors, (4610), 1300 states have return successors, (5032), 4644 states have call predecessors, (5032), 4608 states have call successors, (5032) [2021-12-28 04:14:18,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23652 states to 23652 states and 33318 transitions. [2021-12-28 04:14:18,353 INFO L78 Accepts]: Start accepts. Automaton has 23652 states and 33318 transitions. Word has length 167 [2021-12-28 04:14:18,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:14:18,355 INFO L470 AbstractCegarLoop]: Abstraction has 23652 states and 33318 transitions. [2021-12-28 04:14:18,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.428571428571429) internal successors, (73), 3 states have internal predecessors, (73), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2021-12-28 04:14:18,355 INFO L276 IsEmpty]: Start isEmpty. Operand 23652 states and 33318 transitions. [2021-12-28 04:14:18,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-12-28 04:14:18,363 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:14:18,364 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2021-12-28 04:14:18,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 04:14:18,364 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:14:18,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:14:18,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1911466864, now seen corresponding path program 1 times [2021-12-28 04:14:18,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:14:18,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86825473] [2021-12-28 04:14:18,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:14:18,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:14:18,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:18,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:14:18,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:18,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:18,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:18,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:18,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:14:18,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:18,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:18,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:18,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:18,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:18,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:14:18,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:18,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:18,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:18,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:18,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:18,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:14:18,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:18,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:18,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:18,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:18,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-12-28 04:14:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:18,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:18,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:18,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:18,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:18,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-28 04:14:18,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:18,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-28 04:14:18,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:18,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:18,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:18,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:18,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:18,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-28 04:14:18,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:18,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:18,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:18,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:18,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:18,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-28 04:14:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:18,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:18,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:18,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:18,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:18,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-28 04:14:18,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:18,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-28 04:14:18,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:18,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-28 04:14:18,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:18,923 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2021-12-28 04:14:18,924 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:14:18,924 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86825473] [2021-12-28 04:14:18,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86825473] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:14:18,924 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:14:18,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-12-28 04:14:18,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009932022] [2021-12-28 04:14:18,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:14:18,925 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-28 04:14:18,926 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:14:18,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-28 04:14:18,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-12-28 04:14:18,927 INFO L87 Difference]: Start difference. First operand 23652 states and 33318 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 04:14:21,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:14:21,963 INFO L93 Difference]: Finished difference Result 37853 states and 53568 transitions. [2021-12-28 04:14:21,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-28 04:14:21,964 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 208 [2021-12-28 04:14:21,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:14:22,024 INFO L225 Difference]: With dead ends: 37853 [2021-12-28 04:14:22,024 INFO L226 Difference]: Without dead ends: 14165 [2021-12-28 04:14:22,085 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2021-12-28 04:14:22,087 INFO L933 BasicCegarLoop]: 1175 mSDtfsCounter, 1102 mSDsluCounter, 4907 mSDsCounter, 0 mSdLazyCounter, 2977 mSolverCounterSat, 675 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1159 SdHoareTripleChecker+Valid, 6082 SdHoareTripleChecker+Invalid, 3652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 675 IncrementalHoareTripleChecker+Valid, 2977 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2021-12-28 04:14:22,087 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1159 Valid, 6082 Invalid, 3652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [675 Valid, 2977 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2021-12-28 04:14:22,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14165 states. [2021-12-28 04:14:22,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14165 to 12378. [2021-12-28 04:14:22,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12378 states, 9280 states have (on average 1.3327586206896551) internal successors, (12368), 9389 states have internal predecessors, (12368), 2427 states have call successors, (2427), 632 states have call predecessors, (2427), 670 states have return successors, (2637), 2436 states have call predecessors, (2637), 2425 states have call successors, (2637) [2021-12-28 04:14:22,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12378 states to 12378 states and 17432 transitions. [2021-12-28 04:14:22,532 INFO L78 Accepts]: Start accepts. Automaton has 12378 states and 17432 transitions. Word has length 208 [2021-12-28 04:14:22,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:14:22,532 INFO L470 AbstractCegarLoop]: Abstraction has 12378 states and 17432 transitions. [2021-12-28 04:14:22,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2021-12-28 04:14:22,533 INFO L276 IsEmpty]: Start isEmpty. Operand 12378 states and 17432 transitions. [2021-12-28 04:14:22,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-12-28 04:14:22,541 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:14:22,542 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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] [2021-12-28 04:14:22,542 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-28 04:14:22,542 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:14:22,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:14:22,543 INFO L85 PathProgramCache]: Analyzing trace with hash 369669611, now seen corresponding path program 1 times [2021-12-28 04:14:22,543 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:14:22,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589303498] [2021-12-28 04:14:22,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:14:22,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:14:22,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:22,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:14:22,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:22,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:22,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:22,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:22,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:14:22,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:23,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:23,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:23,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:23,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:23,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:14:23,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:23,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:23,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:23,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:23,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:23,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:14:23,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:23,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:23,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:23,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:23,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 04:14:23,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:23,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:23,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:23,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:23,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 04:14:23,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:23,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-28 04:14:23,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:23,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:23,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:23,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:23,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:23,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-28 04:14:23,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:23,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:23,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:23,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:23,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:23,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 04:14:23,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:23,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:23,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:23,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:23,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:23,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-28 04:14:23,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:23,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2021-12-28 04:14:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:23,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-28 04:14:23,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:23,203 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2021-12-28 04:14:23,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:14:23,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589303498] [2021-12-28 04:14:23,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589303498] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:14:23,204 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:14:23,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 04:14:23,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278632229] [2021-12-28 04:14:23,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:14:23,206 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 04:14:23,206 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:14:23,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 04:14:23,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-28 04:14:23,207 INFO L87 Difference]: Start difference. First operand 12378 states and 17432 transitions. Second operand has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-28 04:14:26,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:14:26,718 INFO L93 Difference]: Finished difference Result 32656 states and 46367 transitions. [2021-12-28 04:14:26,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-28 04:14:26,719 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 210 [2021-12-28 04:14:26,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:14:26,810 INFO L225 Difference]: With dead ends: 32656 [2021-12-28 04:14:26,811 INFO L226 Difference]: Without dead ends: 20723 [2021-12-28 04:14:26,963 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-12-28 04:14:26,964 INFO L933 BasicCegarLoop]: 1860 mSDtfsCounter, 3520 mSDsluCounter, 3787 mSDsCounter, 0 mSdLazyCounter, 2344 mSolverCounterSat, 1870 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3683 SdHoareTripleChecker+Valid, 5647 SdHoareTripleChecker+Invalid, 4214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1870 IncrementalHoareTripleChecker+Valid, 2344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-12-28 04:14:26,964 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3683 Valid, 5647 Invalid, 4214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1870 Valid, 2344 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-12-28 04:14:26,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20723 states. [2021-12-28 04:14:27,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20723 to 18224. [2021-12-28 04:14:27,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18224 states, 13699 states have (on average 1.3327250164245565) internal successors, (18257), 13856 states have internal predecessors, (18257), 3539 states have call successors, (3539), 930 states have call predecessors, (3539), 985 states have return successors, (3847), 3553 states have call predecessors, (3847), 3537 states have call successors, (3847) [2021-12-28 04:14:27,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18224 states to 18224 states and 25643 transitions. [2021-12-28 04:14:27,504 INFO L78 Accepts]: Start accepts. Automaton has 18224 states and 25643 transitions. Word has length 210 [2021-12-28 04:14:27,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:14:27,504 INFO L470 AbstractCegarLoop]: Abstraction has 18224 states and 25643 transitions. [2021-12-28 04:14:27,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.428571428571429) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-28 04:14:27,505 INFO L276 IsEmpty]: Start isEmpty. Operand 18224 states and 25643 transitions. [2021-12-28 04:14:27,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2021-12-28 04:14:27,514 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:14:27,514 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:14:27,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-28 04:14:27,515 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:14:27,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:14:27,515 INFO L85 PathProgramCache]: Analyzing trace with hash 197833031, now seen corresponding path program 1 times [2021-12-28 04:14:27,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:14:27,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608281188] [2021-12-28 04:14:27,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:14:27,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:14:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:27,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:14:27,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:27,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:27,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:27,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:27,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:27,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:14:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:27,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:27,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:27,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:27,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:27,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:14:27,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:27,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:27,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:27,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:27,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:27,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:14:27,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:27,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:27,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:27,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:27,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:27,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 04:14:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:27,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:27,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:27,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:27,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:27,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 04:14:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:27,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-28 04:14:27,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:27,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:27,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:27,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:27,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:27,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-28 04:14:27,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:27,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:27,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:27,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:27,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:27,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 04:14:27,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:27,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:27,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:27,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:27,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:27,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-28 04:14:27,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:27,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-28 04:14:27,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:27,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-28 04:14:27,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:27,967 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2021-12-28 04:14:27,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:14:27,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608281188] [2021-12-28 04:14:27,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608281188] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:14:27,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:14:27,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-28 04:14:27,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248481247] [2021-12-28 04:14:27,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:14:27,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 04:14:27,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:14:27,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 04:14:27,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-28 04:14:27,970 INFO L87 Difference]: Start difference. First operand 18224 states and 25643 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-28 04:14:32,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:14:32,745 INFO L93 Difference]: Finished difference Result 48092 states and 68241 transitions. [2021-12-28 04:14:32,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-28 04:14:32,746 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 222 [2021-12-28 04:14:32,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:14:32,844 INFO L225 Difference]: With dead ends: 48092 [2021-12-28 04:14:32,844 INFO L226 Difference]: Without dead ends: 30313 [2021-12-28 04:14:32,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2021-12-28 04:14:32,901 INFO L933 BasicCegarLoop]: 1841 mSDtfsCounter, 3064 mSDsluCounter, 4729 mSDsCounter, 0 mSdLazyCounter, 3021 mSolverCounterSat, 1439 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3226 SdHoareTripleChecker+Valid, 6570 SdHoareTripleChecker+Invalid, 4460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1439 IncrementalHoareTripleChecker+Valid, 3021 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-12-28 04:14:32,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3226 Valid, 6570 Invalid, 4460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1439 Valid, 3021 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-12-28 04:14:32,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30313 states. [2021-12-28 04:14:33,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30313 to 26794. [2021-12-28 04:14:33,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26794 states, 20195 states have (on average 1.3326565981678633) internal successors, (26913), 20417 states have internal predecessors, (26913), 5158 states have call successors, (5158), 1362 states have call predecessors, (5158), 1440 states have return successors, (5607), 5180 states have call predecessors, (5607), 5156 states have call successors, (5607) [2021-12-28 04:14:33,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26794 states to 26794 states and 37678 transitions. [2021-12-28 04:14:33,835 INFO L78 Accepts]: Start accepts. Automaton has 26794 states and 37678 transitions. Word has length 222 [2021-12-28 04:14:33,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:14:33,835 INFO L470 AbstractCegarLoop]: Abstraction has 26794 states and 37678 transitions. [2021-12-28 04:14:33,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (18), 6 states have call predecessors, (18), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-28 04:14:33,836 INFO L276 IsEmpty]: Start isEmpty. Operand 26794 states and 37678 transitions. [2021-12-28 04:14:33,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-12-28 04:14:33,845 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:14:33,845 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:14:33,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-28 04:14:33,846 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:14:33,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:14:33,846 INFO L85 PathProgramCache]: Analyzing trace with hash -103130709, now seen corresponding path program 1 times [2021-12-28 04:14:33,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:14:33,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068411620] [2021-12-28 04:14:33,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:14:33,847 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:14:33,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:34,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:14:34,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:34,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:34,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:34,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:34,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:34,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:14:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:34,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:34,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:34,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:34,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:14:34,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:34,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:34,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:34,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:34,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:14:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:34,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:34,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:34,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:34,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:34,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 04:14:34,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:34,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:34,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:34,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:34,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:34,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 04:14:34,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:34,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-28 04:14:34,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:34,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:34,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:34,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:34,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:34,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-28 04:14:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:34,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:34,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:34,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:34,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:34,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 04:14:34,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:34,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:34,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:34,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:34,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:34,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-28 04:14:34,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:34,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2021-12-28 04:14:34,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:34,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-28 04:14:34,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:34,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-28 04:14:34,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:34,370 INFO L134 CoverageAnalysis]: Checked inductivity of 415 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 399 trivial. 0 not checked. [2021-12-28 04:14:34,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:14:34,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068411620] [2021-12-28 04:14:34,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068411620] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:14:34,370 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:14:34,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-12-28 04:14:34,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085602663] [2021-12-28 04:14:34,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:14:34,371 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-28 04:14:34,371 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:14:34,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-28 04:14:34,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-12-28 04:14:34,372 INFO L87 Difference]: Start difference. First operand 26794 states and 37678 transitions. Second operand has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (19), 7 states have call predecessors, (19), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-28 04:14:41,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:14:41,103 INFO L93 Difference]: Finished difference Result 67412 states and 95518 transitions. [2021-12-28 04:14:41,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-12-28 04:14:41,104 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (19), 7 states have call predecessors, (19), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 229 [2021-12-28 04:14:41,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:14:41,227 INFO L225 Difference]: With dead ends: 67412 [2021-12-28 04:14:41,227 INFO L226 Difference]: Without dead ends: 41063 [2021-12-28 04:14:41,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 251 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=253, Invalid=803, Unknown=0, NotChecked=0, Total=1056 [2021-12-28 04:14:41,272 INFO L933 BasicCegarLoop]: 2280 mSDtfsCounter, 2617 mSDsluCounter, 9290 mSDsCounter, 0 mSdLazyCounter, 5819 mSolverCounterSat, 1537 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2783 SdHoareTripleChecker+Valid, 11570 SdHoareTripleChecker+Invalid, 7356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1537 IncrementalHoareTripleChecker+Valid, 5819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2021-12-28 04:14:41,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2783 Valid, 11570 Invalid, 7356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1537 Valid, 5819 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2021-12-28 04:14:41,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41063 states. [2021-12-28 04:14:42,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41063 to 26886. [2021-12-28 04:14:42,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26886 states, 20263 states have (on average 1.331540245768149) internal successors, (26981), 20497 states have internal predecessors, (26981), 5170 states have call successors, (5170), 1362 states have call predecessors, (5170), 1452 states have return successors, (5635), 5204 states have call predecessors, (5635), 5168 states have call successors, (5635) [2021-12-28 04:14:42,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26886 states to 26886 states and 37786 transitions. [2021-12-28 04:14:42,376 INFO L78 Accepts]: Start accepts. Automaton has 26886 states and 37786 transitions. Word has length 229 [2021-12-28 04:14:42,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:14:42,377 INFO L470 AbstractCegarLoop]: Abstraction has 26886 states and 37786 transitions. [2021-12-28 04:14:42,377 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.909090909090908) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (19), 7 states have call predecessors, (19), 2 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2021-12-28 04:14:42,377 INFO L276 IsEmpty]: Start isEmpty. Operand 26886 states and 37786 transitions. [2021-12-28 04:14:42,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-12-28 04:14:42,391 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:14:42,392 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:14:42,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-28 04:14:42,392 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:14:42,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:14:42,393 INFO L85 PathProgramCache]: Analyzing trace with hash -2106085363, now seen corresponding path program 1 times [2021-12-28 04:14:42,393 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:14:42,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686135302] [2021-12-28 04:14:42,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:14:42,394 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:14:42,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:42,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:14:42,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:42,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:42,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:42,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:42,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:14:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:43,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:43,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:14:43,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:43,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:43,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:14:43,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:43,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:43,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 04:14:43,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:43,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:43,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 04:14:43,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-28 04:14:43,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:43,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-28 04:14:43,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:43,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:43,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 04:14:43,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:43,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:43,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-28 04:14:43,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:43,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-28 04:14:43,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:43,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:43,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-28 04:14:43,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:43,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-28 04:14:43,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2021-12-28 04:14:43,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2021-12-28 04:14:43,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:43,457 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 638 trivial. 0 not checked. [2021-12-28 04:14:43,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:14:43,457 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686135302] [2021-12-28 04:14:43,457 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686135302] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:14:43,458 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:14:43,458 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 04:14:43,458 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096288373] [2021-12-28 04:14:43,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:14:43,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-28 04:14:43,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:14:43,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-28 04:14:43,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-28 04:14:43,462 INFO L87 Difference]: Start difference. First operand 26886 states and 37786 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (21), 8 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-28 04:14:45,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 04:14:45,479 INFO L93 Difference]: Finished difference Result 50858 states and 71112 transitions. [2021-12-28 04:14:45,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 04:14:45,480 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (21), 8 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 260 [2021-12-28 04:14:45,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 04:14:45,532 INFO L225 Difference]: With dead ends: 50858 [2021-12-28 04:14:45,533 INFO L226 Difference]: Without dead ends: 24417 [2021-12-28 04:14:45,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2021-12-28 04:14:45,584 INFO L933 BasicCegarLoop]: 932 mSDtfsCounter, 1644 mSDsluCounter, 2337 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 841 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1725 SdHoareTripleChecker+Valid, 3269 SdHoareTripleChecker+Invalid, 1985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 841 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-28 04:14:45,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1725 Valid, 3269 Invalid, 1985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [841 Valid, 1144 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-28 04:14:45,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24417 states. [2021-12-28 04:14:46,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24417 to 22815. [2021-12-28 04:14:46,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22815 states, 17266 states have (on average 1.3268852079230857) internal successors, (22910), 17401 states have internal predecessors, (22910), 4294 states have call successors, (4294), 1186 states have call predecessors, (4294), 1254 states have return successors, (4446), 4279 states have call predecessors, (4446), 4292 states have call successors, (4446) [2021-12-28 04:14:46,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22815 states to 22815 states and 31650 transitions. [2021-12-28 04:14:46,249 INFO L78 Accepts]: Start accepts. Automaton has 22815 states and 31650 transitions. Word has length 260 [2021-12-28 04:14:46,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 04:14:46,249 INFO L470 AbstractCegarLoop]: Abstraction has 22815 states and 31650 transitions. [2021-12-28 04:14:46,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (21), 8 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-28 04:14:46,250 INFO L276 IsEmpty]: Start isEmpty. Operand 22815 states and 31650 transitions. [2021-12-28 04:14:46,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2021-12-28 04:14:46,263 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:14:46,263 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 04:14:46,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-28 04:14:46,263 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:14:46,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:14:46,264 INFO L85 PathProgramCache]: Analyzing trace with hash 897033349, now seen corresponding path program 1 times [2021-12-28 04:14:46,264 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:14:46,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832977832] [2021-12-28 04:14:46,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:14:46,264 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:14:46,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:14:46,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:46,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 04:14:46,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:46,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-28 04:14:46,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:46,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:46,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-28 04:14:46,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:46,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2021-12-28 04:14:46,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:46,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:46,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 04:14:46,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-28 04:14:46,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:46,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:46,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-28 04:14:46,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:46,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:46,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-28 04:14:46,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:46,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:46,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-28 04:14:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:46,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:46,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-28 04:14:46,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:46,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 04:14:46,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-28 04:14:46,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 04:14:46,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-28 04:14:46,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2021-12-28 04:14:46,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-28 04:14:46,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-12-28 04:14:46,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:14:46,826 INFO L134 CoverageAnalysis]: Checked inductivity of 638 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 638 trivial. 0 not checked. [2021-12-28 04:14:46,826 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:14:46,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832977832] [2021-12-28 04:14:46,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832977832] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:14:46,827 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:14:46,827 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 04:14:46,827 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058471918] [2021-12-28 04:14:46,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:14:46,828 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-28 04:14:46,828 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:14:46,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-28 04:14:46,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-28 04:14:46,829 INFO L87 Difference]: Start difference. First operand 22815 states and 31650 transitions. Second operand has 8 states, 8 states have (on average 13.125) internal successors, (105), 3 states have internal predecessors, (105), 2 states have call successors, (22), 7 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19)