./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.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 a172742698d01ea3d6a7e277a97e7636a1425e62fd3035feb511b810f7b798f5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 23:09:56,342 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 23:09:56,344 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 23:09:56,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 23:09:56,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 23:09:56,372 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 23:09:56,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 23:09:56,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 23:09:56,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 23:09:56,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 23:09:56,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 23:09:56,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 23:09:56,386 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 23:09:56,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 23:09:56,389 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 23:09:56,390 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 23:09:56,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 23:09:56,392 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 23:09:56,394 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 23:09:56,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 23:09:56,400 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 23:09:56,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 23:09:56,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 23:09:56,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 23:09:56,405 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 23:09:56,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 23:09:56,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 23:09:56,408 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 23:09:56,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 23:09:56,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 23:09:56,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 23:09:56,409 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 23:09:56,411 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 23:09:56,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 23:09:56,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 23:09:56,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 23:09:56,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 23:09:56,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 23:09:56,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 23:09:56,413 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 23:09:56,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 23:09:56,415 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 23:09:56,416 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-19 23:09:56,438 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 23:09:56,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 23:09:56,439 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 23:09:56,439 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 23:09:56,439 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 23:09:56,440 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 23:09:56,440 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 23:09:56,440 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 23:09:56,440 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 23:09:56,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 23:09:56,441 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 23:09:56,441 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 23:09:56,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 23:09:56,442 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 23:09:56,442 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 23:09:56,442 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 23:09:56,442 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 23:09:56,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 23:09:56,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 23:09:56,443 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 23:09:56,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 23:09:56,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:09:56,444 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 23:09:56,444 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 23:09:56,444 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 23:09:56,444 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 23:09:56,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 23:09:56,445 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 23:09:56,445 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 23:09:56,445 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 23:09:56,445 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a172742698d01ea3d6a7e277a97e7636a1425e62fd3035feb511b810f7b798f5 [2022-07-19 23:09:56,677 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 23:09:56,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 23:09:56,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 23:09:56,704 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 23:09:56,705 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 23:09:56,706 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2022-07-19 23:09:56,757 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fed4842b/949919c0a3ff452c89c7982496b75243/FLAG46790b095 [2022-07-19 23:09:57,310 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 23:09:57,311 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2022-07-19 23:09:57,343 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fed4842b/949919c0a3ff452c89c7982496b75243/FLAG46790b095 [2022-07-19 23:09:57,786 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fed4842b/949919c0a3ff452c89c7982496b75243 [2022-07-19 23:09:57,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 23:09:57,799 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 23:09:57,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 23:09:57,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 23:09:57,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 23:09:57,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:09:57" (1/1) ... [2022-07-19 23:09:57,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@403bd69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:09:57, skipping insertion in model container [2022-07-19 23:09:57,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:09:57" (1/1) ... [2022-07-19 23:09:57,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 23:09:57,857 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 23:09:58,595 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i[168612,168625] [2022-07-19 23:09:58,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:09:58,708 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 23:09:58,867 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-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i[168612,168625] [2022-07-19 23:09:58,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 23:09:59,027 INFO L208 MainTranslator]: Completed translation [2022-07-19 23:09:59,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:09:59 WrapperNode [2022-07-19 23:09:59,028 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 23:09:59,029 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 23:09:59,030 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 23:09:59,030 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 23:09:59,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:09:59" (1/1) ... [2022-07-19 23:09:59,104 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:09:59" (1/1) ... [2022-07-19 23:09:59,223 INFO L137 Inliner]: procedures = 184, calls = 1940, calls flagged for inlining = 74, calls inlined = 66, statements flattened = 5145 [2022-07-19 23:09:59,223 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 23:09:59,224 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 23:09:59,224 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 23:09:59,225 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 23:09:59,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:09:59" (1/1) ... [2022-07-19 23:09:59,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:09:59" (1/1) ... [2022-07-19 23:09:59,268 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:09:59" (1/1) ... [2022-07-19 23:09:59,269 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:09:59" (1/1) ... [2022-07-19 23:09:59,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:09:59" (1/1) ... [2022-07-19 23:09:59,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:09:59" (1/1) ... [2022-07-19 23:09:59,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:09:59" (1/1) ... [2022-07-19 23:09:59,479 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 23:09:59,481 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 23:09:59,481 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 23:09:59,481 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 23:09:59,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:09:59" (1/1) ... [2022-07-19 23:09:59,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 23:09:59,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 23:09:59,511 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 23:09:59,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 23:09:59,544 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan [2022-07-19 23:09:59,544 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan [2022-07-19 23:09:59,544 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-07-19 23:09:59,544 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-07-19 23:09:59,544 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_word_swapped [2022-07-19 23:09:59,544 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_word_swapped [2022-07-19 23:09:59,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_asb100_data [2022-07-19 23:09:59,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_asb100_data [2022-07-19 23:09:59,544 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_max [2022-07-19 23:09:59,544 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_max [2022-07-19 23:09:59,545 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_asb100_data [2022-07-19 23:09:59,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_asb100_data [2022-07-19 23:09:59,545 INFO L130 BoogieDeclarations]: Found specification of procedure set_in_max [2022-07-19 23:09:59,545 INFO L138 BoogieDeclarations]: Found implementation of procedure set_in_max [2022-07-19 23:09:59,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-19 23:09:59,545 INFO L130 BoogieDeclarations]: Found specification of procedure set_temp_hyst [2022-07-19 23:09:59,545 INFO L138 BoogieDeclarations]: Found implementation of procedure set_temp_hyst [2022-07-19 23:09:59,545 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_TO_REG [2022-07-19 23:09:59,545 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_TO_REG [2022-07-19 23:09:59,546 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-07-19 23:09:59,546 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-07-19 23:09:59,546 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2022-07-19 23:09:59,546 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2022-07-19 23:09:59,546 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_hyst [2022-07-19 23:09:59,546 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_hyst [2022-07-19 23:09:59,546 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf_temp_from_reg [2022-07-19 23:09:59,546 INFO L138 BoogieDeclarations]: Found implementation of procedure sprintf_temp_from_reg [2022-07-19 23:09:59,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-19 23:09:59,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-19 23:09:59,547 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_update_device [2022-07-19 23:09:59,547 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_update_device [2022-07-19 23:09:59,547 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_word_swapped [2022-07-19 23:09:59,547 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_word_swapped [2022-07-19 23:09:59,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_asb100_data [2022-07-19 23:09:59,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_asb100_data [2022-07-19 23:09:59,547 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_div [2022-07-19 23:09:59,548 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_div [2022-07-19 23:09:59,548 INFO L130 BoogieDeclarations]: Found specification of procedure set_fan_div [2022-07-19 23:09:59,548 INFO L138 BoogieDeclarations]: Found implementation of procedure set_fan_div [2022-07-19 23:09:59,548 INFO L130 BoogieDeclarations]: Found specification of procedure LM75_TEMP_TO_REG [2022-07-19 23:09:59,548 INFO L138 BoogieDeclarations]: Found implementation of procedure LM75_TEMP_TO_REG [2022-07-19 23:09:59,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-19 23:09:59,548 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-19 23:09:59,548 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-19 23:09:59,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-19 23:09:59,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-19 23:09:59,549 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp [2022-07-19 23:09:59,549 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp [2022-07-19 23:09:59,549 INFO L130 BoogieDeclarations]: Found specification of procedure set_temp_max [2022-07-19 23:09:59,549 INFO L138 BoogieDeclarations]: Found implementation of procedure set_temp_max [2022-07-19 23:09:59,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-19 23:09:59,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-19 23:09:59,549 INFO L130 BoogieDeclarations]: Found specification of procedure IN_TO_REG [2022-07-19 23:09:59,550 INFO L138 BoogieDeclarations]: Found implementation of procedure IN_TO_REG [2022-07-19 23:09:59,550 INFO L130 BoogieDeclarations]: Found specification of procedure set_in_min [2022-07-19 23:09:59,550 INFO L138 BoogieDeclarations]: Found implementation of procedure set_in_min [2022-07-19 23:09:59,550 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_write_value [2022-07-19 23:09:59,550 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_write_value [2022-07-19 23:09:59,550 INFO L130 BoogieDeclarations]: Found specification of procedure TEMP_TO_REG [2022-07-19 23:09:59,550 INFO L138 BoogieDeclarations]: Found implementation of procedure TEMP_TO_REG [2022-07-19 23:09:59,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-19 23:09:59,551 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-19 23:09:59,551 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-19 23:09:59,551 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_min [2022-07-19 23:09:59,551 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_min [2022-07-19 23:09:59,551 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 23:09:59,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-19 23:09:59,551 INFO L130 BoogieDeclarations]: Found specification of procedure set_fan_min [2022-07-19 23:09:59,551 INFO L138 BoogieDeclarations]: Found implementation of procedure set_fan_min [2022-07-19 23:09:59,551 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_min [2022-07-19 23:09:59,552 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_min [2022-07-19 23:09:59,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-19 23:09:59,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_asb100_data [2022-07-19 23:09:59,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_asb100_data [2022-07-19 23:09:59,552 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_max [2022-07-19 23:09:59,552 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_max [2022-07-19 23:09:59,552 INFO L130 BoogieDeclarations]: Found specification of procedure show_alarm [2022-07-19 23:09:59,552 INFO L138 BoogieDeclarations]: Found implementation of procedure show_alarm [2022-07-19 23:09:59,552 INFO L130 BoogieDeclarations]: Found specification of procedure SENSORS_LIMIT [2022-07-19 23:09:59,553 INFO L138 BoogieDeclarations]: Found implementation of procedure SENSORS_LIMIT [2022-07-19 23:09:59,553 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_byte_data [2022-07-19 23:09:59,553 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_byte_data [2022-07-19 23:09:59,553 INFO L130 BoogieDeclarations]: Found specification of procedure show_in [2022-07-19 23:09:59,553 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in [2022-07-19 23:09:59,553 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-19 23:09:59,553 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtol [2022-07-19 23:09:59,553 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtol [2022-07-19 23:09:59,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-19 23:09:59,554 INFO L130 BoogieDeclarations]: Found specification of procedure IN_FROM_REG [2022-07-19 23:09:59,554 INFO L138 BoogieDeclarations]: Found implementation of procedure IN_FROM_REG [2022-07-19 23:09:59,554 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2022-07-19 23:09:59,554 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2022-07-19 23:09:59,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-19 23:09:59,554 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_unregister_device [2022-07-19 23:09:59,554 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_unregister_device [2022-07-19 23:09:59,554 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_detect [2022-07-19 23:09:59,555 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_detect [2022-07-19 23:09:59,555 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_read_value [2022-07-19 23:09:59,555 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_read_value [2022-07-19 23:09:59,555 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-19 23:09:59,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-19 23:09:59,555 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_FROM_REG [2022-07-19 23:09:59,555 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_FROM_REG [2022-07-19 23:09:59,555 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-19 23:09:59,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-19 23:09:59,556 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_new_dummy [2022-07-19 23:09:59,556 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_new_dummy [2022-07-19 23:09:59,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 23:09:59,556 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_byte_data [2022-07-19 23:09:59,556 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_byte_data [2022-07-19 23:09:59,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 23:09:59,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 23:09:59,556 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-19 23:09:59,556 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-19 23:10:00,038 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 23:10:00,040 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 23:10:05,257 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 23:10:05,268 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 23:10:05,268 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-19 23:10:05,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:10:05 BoogieIcfgContainer [2022-07-19 23:10:05,271 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 23:10:05,272 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 23:10:05,272 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 23:10:05,274 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 23:10:05,274 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:09:57" (1/3) ... [2022-07-19 23:10:05,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62012cbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:10:05, skipping insertion in model container [2022-07-19 23:10:05,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:09:59" (2/3) ... [2022-07-19 23:10:05,275 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62012cbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:10:05, skipping insertion in model container [2022-07-19 23:10:05,275 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:10:05" (3/3) ... [2022-07-19 23:10:05,276 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2022-07-19 23:10:05,286 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 23:10:05,286 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 23:10:05,362 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 23:10:05,366 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@37cfd6bd, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@2124c702 [2022-07-19 23:10:05,367 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 23:10:05,373 INFO L276 IsEmpty]: Start isEmpty. Operand has 1312 states, 982 states have (on average 1.490835030549898) internal successors, (1464), 996 states have internal predecessors, (1464), 277 states have call successors, (277), 51 states have call predecessors, (277), 51 states have return successors, (277), 275 states have call predecessors, (277), 277 states have call successors, (277) [2022-07-19 23:10:05,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-19 23:10:05,383 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:10:05,384 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:10:05,384 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:10:05,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:10:05,391 INFO L85 PathProgramCache]: Analyzing trace with hash -660898654, now seen corresponding path program 1 times [2022-07-19 23:10:05,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:10:05,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108717264] [2022-07-19 23:10:05,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:10:05,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:10:05,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:05,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-19 23:10:05,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:05,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:10:06,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:06,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:10:06,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:06,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:10:06,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:10:06,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108717264] [2022-07-19 23:10:06,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108717264] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:10:06,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:10:06,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:10:06,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944250967] [2022-07-19 23:10:06,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:10:06,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:10:06,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:10:06,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:10:06,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:10:06,074 INFO L87 Difference]: Start difference. First operand has 1312 states, 982 states have (on average 1.490835030549898) internal successors, (1464), 996 states have internal predecessors, (1464), 277 states have call successors, (277), 51 states have call predecessors, (277), 51 states have return successors, (277), 275 states have call predecessors, (277), 277 states have call successors, (277) Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-19 23:10:07,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:10:07,754 INFO L93 Difference]: Finished difference Result 4080 states and 6739 transitions. [2022-07-19 23:10:07,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:10:07,757 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 34 [2022-07-19 23:10:07,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:10:07,790 INFO L225 Difference]: With dead ends: 4080 [2022-07-19 23:10:07,791 INFO L226 Difference]: Without dead ends: 2763 [2022-07-19 23:10:07,807 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:10:07,809 INFO L413 NwaCegarLoop]: 2343 mSDtfsCounter, 2309 mSDsluCounter, 3331 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 686 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2469 SdHoareTripleChecker+Valid, 5674 SdHoareTripleChecker+Invalid, 1454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 686 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-19 23:10:07,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2469 Valid, 5674 Invalid, 1454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [686 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-19 23:10:07,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2022-07-19 23:10:07,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2580. [2022-07-19 23:10:07,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2580 states, 1936 states have (on average 1.4834710743801653) internal successors, (2872), 1952 states have internal predecessors, (2872), 543 states have call successors, (543), 101 states have call predecessors, (543), 100 states have return successors, (534), 530 states have call predecessors, (534), 534 states have call successors, (534) [2022-07-19 23:10:07,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2580 states to 2580 states and 3949 transitions. [2022-07-19 23:10:07,979 INFO L78 Accepts]: Start accepts. Automaton has 2580 states and 3949 transitions. Word has length 34 [2022-07-19 23:10:07,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:10:07,980 INFO L495 AbstractCegarLoop]: Abstraction has 2580 states and 3949 transitions. [2022-07-19 23:10:07,980 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-19 23:10:07,980 INFO L276 IsEmpty]: Start isEmpty. Operand 2580 states and 3949 transitions. [2022-07-19 23:10:07,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-19 23:10:07,985 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:10:07,986 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:10:07,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 23:10:07,986 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:10:07,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:10:07,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1304109229, now seen corresponding path program 1 times [2022-07-19 23:10:07,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:10:07,987 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043074291] [2022-07-19 23:10:07,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:10:07,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:10:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:08,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-19 23:10:08,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:08,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:10:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:08,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:10:08,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:08,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:10:08,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:10:08,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043074291] [2022-07-19 23:10:08,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043074291] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:10:08,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:10:08,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:10:08,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91252728] [2022-07-19 23:10:08,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:10:08,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:10:08,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:10:08,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:10:08,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:10:08,199 INFO L87 Difference]: Start difference. First operand 2580 states and 3949 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-19 23:10:09,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:10:09,893 INFO L93 Difference]: Finished difference Result 8042 states and 12491 transitions. [2022-07-19 23:10:09,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:10:09,894 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2022-07-19 23:10:09,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:10:09,926 INFO L225 Difference]: With dead ends: 8042 [2022-07-19 23:10:09,927 INFO L226 Difference]: Without dead ends: 5465 [2022-07-19 23:10:09,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:10:09,945 INFO L413 NwaCegarLoop]: 2512 mSDtfsCounter, 2213 mSDsluCounter, 3368 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 657 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2377 SdHoareTripleChecker+Valid, 5880 SdHoareTripleChecker+Invalid, 1427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 657 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-19 23:10:09,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2377 Valid, 5880 Invalid, 1427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [657 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-19 23:10:09,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5465 states. [2022-07-19 23:10:10,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5465 to 5118. [2022-07-19 23:10:10,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5118 states, 3844 states have (on average 1.4828303850156088) internal successors, (5700), 3868 states have internal predecessors, (5700), 1073 states have call successors, (1073), 201 states have call predecessors, (1073), 200 states have return successors, (1064), 1056 states have call predecessors, (1064), 1064 states have call successors, (1064) [2022-07-19 23:10:10,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5118 states to 5118 states and 7837 transitions. [2022-07-19 23:10:10,136 INFO L78 Accepts]: Start accepts. Automaton has 5118 states and 7837 transitions. Word has length 35 [2022-07-19 23:10:10,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:10:10,136 INFO L495 AbstractCegarLoop]: Abstraction has 5118 states and 7837 transitions. [2022-07-19 23:10:10,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-19 23:10:10,136 INFO L276 IsEmpty]: Start isEmpty. Operand 5118 states and 7837 transitions. [2022-07-19 23:10:10,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-19 23:10:10,138 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:10:10,138 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:10:10,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 23:10:10,138 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:10:10,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:10:10,139 INFO L85 PathProgramCache]: Analyzing trace with hash 1015238842, now seen corresponding path program 1 times [2022-07-19 23:10:10,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:10:10,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322096689] [2022-07-19 23:10:10,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:10:10,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:10:10,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:10,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-19 23:10:10,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:10,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:10:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:10,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:10:10,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:10,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:10:10,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:10:10,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322096689] [2022-07-19 23:10:10,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322096689] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:10:10,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:10:10,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:10:10,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125959573] [2022-07-19 23:10:10,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:10:10,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:10:10,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:10:10,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:10:10,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:10:10,363 INFO L87 Difference]: Start difference. First operand 5118 states and 7837 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-19 23:10:12,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:10:12,242 INFO L93 Difference]: Finished difference Result 15980 states and 24833 transitions. [2022-07-19 23:10:12,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:10:12,242 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2022-07-19 23:10:12,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:10:12,295 INFO L225 Difference]: With dead ends: 15980 [2022-07-19 23:10:12,295 INFO L226 Difference]: Without dead ends: 10865 [2022-07-19 23:10:12,322 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:10:12,323 INFO L413 NwaCegarLoop]: 2663 mSDtfsCounter, 2146 mSDsluCounter, 3437 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 621 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2308 SdHoareTripleChecker+Valid, 6100 SdHoareTripleChecker+Invalid, 1390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 621 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-19 23:10:12,324 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2308 Valid, 6100 Invalid, 1390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [621 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-07-19 23:10:12,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10865 states. [2022-07-19 23:10:12,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10865 to 10190. [2022-07-19 23:10:12,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10190 states, 7656 states have (on average 1.4822361546499478) internal successors, (11348), 7696 states have internal predecessors, (11348), 2133 states have call successors, (2133), 401 states have call predecessors, (2133), 400 states have return successors, (2124), 2108 states have call predecessors, (2124), 2124 states have call successors, (2124) [2022-07-19 23:10:12,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10190 states to 10190 states and 15605 transitions. [2022-07-19 23:10:12,664 INFO L78 Accepts]: Start accepts. Automaton has 10190 states and 15605 transitions. Word has length 45 [2022-07-19 23:10:12,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:10:12,666 INFO L495 AbstractCegarLoop]: Abstraction has 10190 states and 15605 transitions. [2022-07-19 23:10:12,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-19 23:10:12,666 INFO L276 IsEmpty]: Start isEmpty. Operand 10190 states and 15605 transitions. [2022-07-19 23:10:12,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-19 23:10:12,667 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:10:12,667 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:10:12,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 23:10:12,668 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:10:12,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:10:12,668 INFO L85 PathProgramCache]: Analyzing trace with hash -81678797, now seen corresponding path program 1 times [2022-07-19 23:10:12,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:10:12,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201267588] [2022-07-19 23:10:12,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:10:12,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:10:12,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:12,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-19 23:10:12,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:12,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:10:12,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:12,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:10:12,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:12,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:10:12,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:10:12,932 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201267588] [2022-07-19 23:10:12,932 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201267588] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:10:12,932 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:10:12,932 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:10:12,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172274645] [2022-07-19 23:10:12,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:10:12,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:10:12,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:10:12,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:10:12,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:10:12,934 INFO L87 Difference]: Start difference. First operand 10190 states and 15605 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-19 23:10:14,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:10:14,750 INFO L93 Difference]: Finished difference Result 31796 states and 49409 transitions. [2022-07-19 23:10:14,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:10:14,751 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2022-07-19 23:10:14,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:10:14,902 INFO L225 Difference]: With dead ends: 31796 [2022-07-19 23:10:14,903 INFO L226 Difference]: Without dead ends: 21609 [2022-07-19 23:10:14,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:10:14,933 INFO L413 NwaCegarLoop]: 2597 mSDtfsCounter, 2216 mSDsluCounter, 3469 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 631 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2374 SdHoareTripleChecker+Valid, 6066 SdHoareTripleChecker+Invalid, 1402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 631 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-19 23:10:14,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2374 Valid, 6066 Invalid, 1402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [631 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-19 23:10:14,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21609 states. [2022-07-19 23:10:15,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21609 to 20278. [2022-07-19 23:10:15,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20278 states, 15236 states have (on average 1.4812286689419796) internal successors, (22568), 15308 states have internal predecessors, (22568), 4241 states have call successors, (4241), 801 states have call predecessors, (4241), 800 states have return successors, (4232), 4200 states have call predecessors, (4232), 4232 states have call successors, (4232) [2022-07-19 23:10:15,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20278 states to 20278 states and 31041 transitions. [2022-07-19 23:10:15,587 INFO L78 Accepts]: Start accepts. Automaton has 20278 states and 31041 transitions. Word has length 38 [2022-07-19 23:10:15,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:10:15,587 INFO L495 AbstractCegarLoop]: Abstraction has 20278 states and 31041 transitions. [2022-07-19 23:10:15,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-19 23:10:15,588 INFO L276 IsEmpty]: Start isEmpty. Operand 20278 states and 31041 transitions. [2022-07-19 23:10:15,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-19 23:10:15,590 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:10:15,590 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:10:15,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 23:10:15,590 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:10:15,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:10:15,591 INFO L85 PathProgramCache]: Analyzing trace with hash 432666737, now seen corresponding path program 1 times [2022-07-19 23:10:15,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:10:15,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944887393] [2022-07-19 23:10:15,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:10:15,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:10:15,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:15,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 23:10:15,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:15,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:10:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:15,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:10:15,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:15,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:10:15,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:10:15,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944887393] [2022-07-19 23:10:15,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944887393] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:10:15,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:10:15,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:10:15,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173176179] [2022-07-19 23:10:15,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:10:15,778 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:10:15,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:10:15,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:10:15,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:10:15,779 INFO L87 Difference]: Start difference. First operand 20278 states and 31041 transitions. Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-19 23:10:17,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:10:17,910 INFO L93 Difference]: Finished difference Result 63052 states and 97917 transitions. [2022-07-19 23:10:17,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:10:17,912 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2022-07-19 23:10:17,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:10:18,062 INFO L225 Difference]: With dead ends: 63052 [2022-07-19 23:10:18,062 INFO L226 Difference]: Without dead ends: 42777 [2022-07-19 23:10:18,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:10:18,127 INFO L413 NwaCegarLoop]: 2651 mSDtfsCounter, 2126 mSDsluCounter, 3429 mSDsCounter, 0 mSdLazyCounter, 765 mSolverCounterSat, 622 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2267 SdHoareTripleChecker+Valid, 6080 SdHoareTripleChecker+Invalid, 1387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 622 IncrementalHoareTripleChecker+Valid, 765 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-19 23:10:18,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2267 Valid, 6080 Invalid, 1387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [622 Valid, 765 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-19 23:10:18,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42777 states. [2022-07-19 23:10:19,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42777 to 40134. [2022-07-19 23:10:19,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40134 states, 30188 states have (on average 1.4813833311249502) internal successors, (44720), 30324 states have internal predecessors, (44720), 8345 states have call successors, (8345), 1601 states have call predecessors, (8345), 1600 states have return successors, (8336), 8272 states have call predecessors, (8336), 8336 states have call successors, (8336) [2022-07-19 23:10:19,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40134 states to 40134 states and 61401 transitions. [2022-07-19 23:10:19,455 INFO L78 Accepts]: Start accepts. Automaton has 40134 states and 61401 transitions. Word has length 39 [2022-07-19 23:10:19,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:10:19,455 INFO L495 AbstractCegarLoop]: Abstraction has 40134 states and 61401 transitions. [2022-07-19 23:10:19,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-19 23:10:19,457 INFO L276 IsEmpty]: Start isEmpty. Operand 40134 states and 61401 transitions. [2022-07-19 23:10:19,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-19 23:10:19,458 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:10:19,458 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:10:19,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 23:10:19,459 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:10:19,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:10:19,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1515914313, now seen corresponding path program 1 times [2022-07-19 23:10:19,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:10:19,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207791558] [2022-07-19 23:10:19,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:10:19,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:10:19,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:19,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-19 23:10:19,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:19,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:10:19,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:19,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:10:19,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:19,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:10:19,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:10:19,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207791558] [2022-07-19 23:10:19,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207791558] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:10:19,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:10:19,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:10:19,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314966585] [2022-07-19 23:10:19,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:10:19,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:10:19,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:10:19,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:10:19,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:10:19,905 INFO L87 Difference]: Start difference. First operand 40134 states and 61401 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-19 23:10:23,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:10:24,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:10:24,992 INFO L93 Difference]: Finished difference Result 125452 states and 194757 transitions. [2022-07-19 23:10:24,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:10:24,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2022-07-19 23:10:24,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:10:25,480 INFO L225 Difference]: With dead ends: 125452 [2022-07-19 23:10:25,480 INFO L226 Difference]: Without dead ends: 85321 [2022-07-19 23:10:25,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:10:25,842 INFO L413 NwaCegarLoop]: 2562 mSDtfsCounter, 2247 mSDsluCounter, 3525 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 635 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2414 SdHoareTripleChecker+Valid, 6087 SdHoareTripleChecker+Invalid, 1405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 635 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-07-19 23:10:25,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2414 Valid, 6087 Invalid, 1405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [635 Valid, 769 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2022-07-19 23:10:25,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85321 states. [2022-07-19 23:10:27,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85321 to 80054. [2022-07-19 23:10:28,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80054 states, 60204 states have (on average 1.480566075343831) internal successors, (89136), 60468 states have internal predecessors, (89136), 16649 states have call successors, (16649), 3201 states have call predecessors, (16649), 3200 states have return successors, (16640), 16512 states have call predecessors, (16640), 16640 states have call successors, (16640) [2022-07-19 23:10:28,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80054 states to 80054 states and 122425 transitions. [2022-07-19 23:10:28,679 INFO L78 Accepts]: Start accepts. Automaton has 80054 states and 122425 transitions. Word has length 36 [2022-07-19 23:10:28,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:10:28,690 INFO L495 AbstractCegarLoop]: Abstraction has 80054 states and 122425 transitions. [2022-07-19 23:10:28,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-19 23:10:28,690 INFO L276 IsEmpty]: Start isEmpty. Operand 80054 states and 122425 transitions. [2022-07-19 23:10:28,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-07-19 23:10:28,692 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:10:28,692 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:10:28,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 23:10:28,692 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:10:28,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:10:28,693 INFO L85 PathProgramCache]: Analyzing trace with hash -468435525, now seen corresponding path program 1 times [2022-07-19 23:10:28,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:10:28,693 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971536228] [2022-07-19 23:10:28,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:10:28,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:10:28,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:28,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-19 23:10:28,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:28,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:10:28,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:28,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:10:28,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:28,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:10:28,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:10:28,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971536228] [2022-07-19 23:10:28,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971536228] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:10:28,874 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:10:28,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:10:28,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527686892] [2022-07-19 23:10:28,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:10:28,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:10:28,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:10:28,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:10:28,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:10:28,876 INFO L87 Difference]: Start difference. First operand 80054 states and 122425 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-19 23:10:33,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:10:35,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:10:35,860 INFO L93 Difference]: Finished difference Result 250012 states and 387941 transitions. [2022-07-19 23:10:35,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:10:35,861 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2022-07-19 23:10:35,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:10:36,881 INFO L225 Difference]: With dead ends: 250012 [2022-07-19 23:10:36,881 INFO L226 Difference]: Without dead ends: 169961 [2022-07-19 23:10:37,175 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:10:37,176 INFO L413 NwaCegarLoop]: 2748 mSDtfsCounter, 2147 mSDsluCounter, 3558 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 598 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2304 SdHoareTripleChecker+Valid, 6306 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 598 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-07-19 23:10:37,176 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2304 Valid, 6306 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [598 Valid, 774 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2022-07-19 23:10:37,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169961 states. [2022-07-19 23:10:41,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169961 to 159446. [2022-07-19 23:10:41,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159446 states, 119884 states have (on average 1.479430115778586) internal successors, (177360), 120404 states have internal predecessors, (177360), 33161 states have call successors, (33161), 6401 states have call predecessors, (33161), 6400 states have return successors, (33152), 32896 states have call predecessors, (33152), 33152 states have call successors, (33152) [2022-07-19 23:10:42,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159446 states to 159446 states and 243673 transitions. [2022-07-19 23:10:42,271 INFO L78 Accepts]: Start accepts. Automaton has 159446 states and 243673 transitions. Word has length 39 [2022-07-19 23:10:42,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:10:42,272 INFO L495 AbstractCegarLoop]: Abstraction has 159446 states and 243673 transitions. [2022-07-19 23:10:42,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-19 23:10:42,272 INFO L276 IsEmpty]: Start isEmpty. Operand 159446 states and 243673 transitions. [2022-07-19 23:10:42,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-19 23:10:42,273 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:10:42,274 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:10:42,274 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 23:10:42,274 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:10:42,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:10:42,274 INFO L85 PathProgramCache]: Analyzing trace with hash -565338391, now seen corresponding path program 1 times [2022-07-19 23:10:42,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:10:42,275 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627669575] [2022-07-19 23:10:42,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:10:42,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:10:42,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:42,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-19 23:10:42,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:42,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:10:42,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:42,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:10:42,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:10:42,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:10:42,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:10:42,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627669575] [2022-07-19 23:10:42,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627669575] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:10:42,800 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:10:42,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:10:42,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723199224] [2022-07-19 23:10:42,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:10:42,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:10:42,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:10:42,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:10:42,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:10:42,802 INFO L87 Difference]: Start difference. First operand 159446 states and 243673 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-19 23:10:50,422 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-19 23:10:54,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 23:10:54,209 INFO L93 Difference]: Finished difference Result 497788 states and 772229 transitions. [2022-07-19 23:10:54,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-19 23:10:54,210 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2022-07-19 23:10:54,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 23:10:56,327 INFO L225 Difference]: With dead ends: 497788 [2022-07-19 23:10:56,327 INFO L226 Difference]: Without dead ends: 338345 [2022-07-19 23:10:56,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-19 23:10:56,989 INFO L413 NwaCegarLoop]: 2816 mSDtfsCounter, 2132 mSDsluCounter, 3542 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 590 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2287 SdHoareTripleChecker+Valid, 6358 SdHoareTripleChecker+Invalid, 1369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 590 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-19 23:10:56,989 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2287 Valid, 6358 Invalid, 1369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [590 Valid, 778 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2022-07-19 23:10:57,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338345 states. [2022-07-19 23:11:05,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338345 to 317206. [2022-07-19 23:11:05,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317206 states, 238476 states have (on average 1.4787903185226186) internal successors, (352656), 239508 states have internal predecessors, (352656), 66057 states have call successors, (66057), 12801 states have call predecessors, (66057), 12672 states have return successors, (66048), 65408 states have call predecessors, (66048), 66048 states have call successors, (66048) [2022-07-19 23:11:07,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317206 states to 317206 states and 484761 transitions. [2022-07-19 23:11:07,704 INFO L78 Accepts]: Start accepts. Automaton has 317206 states and 484761 transitions. Word has length 36 [2022-07-19 23:11:07,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 23:11:07,704 INFO L495 AbstractCegarLoop]: Abstraction has 317206 states and 484761 transitions. [2022-07-19 23:11:07,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-07-19 23:11:07,704 INFO L276 IsEmpty]: Start isEmpty. Operand 317206 states and 484761 transitions. [2022-07-19 23:11:07,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-07-19 23:11:07,705 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 23:11:07,705 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 23:11:07,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 23:11:07,705 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 23:11:07,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 23:11:07,706 INFO L85 PathProgramCache]: Analyzing trace with hash 861724364, now seen corresponding path program 1 times [2022-07-19 23:11:07,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 23:11:07,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941293841] [2022-07-19 23:11:07,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 23:11:07,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 23:11:07,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:11:07,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-19 23:11:07,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:11:07,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:11:07,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:11:07,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-19 23:11:07,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 23:11:07,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 23:11:07,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 23:11:07,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941293841] [2022-07-19 23:11:07,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941293841] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 23:11:07,869 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 23:11:07,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-19 23:11:07,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788466927] [2022-07-19 23:11:07,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 23:11:07,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-19 23:11:07,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 23:11:07,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-19 23:11:07,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-19 23:11:07,871 INFO L87 Difference]: Start difference. First operand 317206 states and 484761 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)