./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 6c24879c 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-?-6c24879 [2022-07-12 12:07:00,588 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 12:07:00,590 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 12:07:00,615 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 12:07:00,617 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 12:07:00,619 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 12:07:00,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 12:07:00,625 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 12:07:00,632 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 12:07:00,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 12:07:00,634 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 12:07:00,636 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 12:07:00,637 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 12:07:00,640 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 12:07:00,641 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 12:07:00,644 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 12:07:00,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 12:07:00,651 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 12:07:00,653 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 12:07:00,656 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 12:07:00,660 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 12:07:00,662 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 12:07:00,663 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 12:07:00,664 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 12:07:00,665 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 12:07:00,667 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 12:07:00,668 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 12:07:00,668 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 12:07:00,669 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 12:07:00,670 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 12:07:00,670 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 12:07:00,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 12:07:00,671 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 12:07:00,672 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 12:07:00,673 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 12:07:00,674 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 12:07:00,674 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 12:07:00,674 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 12:07:00,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 12:07:00,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 12:07:00,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 12:07:00,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 12:07:00,677 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-12 12:07:00,695 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 12:07:00,696 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 12:07:00,696 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 12:07:00,697 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 12:07:00,697 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 12:07:00,698 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 12:07:00,698 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 12:07:00,699 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 12:07:00,699 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 12:07:00,699 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 12:07:00,699 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 12:07:00,700 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 12:07:00,700 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 12:07:00,700 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 12:07:00,700 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 12:07:00,701 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 12:07:00,701 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 12:07:00,701 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 12:07:00,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 12:07:00,702 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 12:07:00,702 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 12:07:00,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:07:00,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 12:07:00,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 12:07:00,703 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 12:07:00,703 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 12:07:00,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 12:07:00,704 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 12:07:00,704 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 12:07:00,704 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 12:07:00,704 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a172742698d01ea3d6a7e277a97e7636a1425e62fd3035feb511b810f7b798f5 [2022-07-12 12:07:00,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 12:07:00,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 12:07:00,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 12:07:00,952 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 12:07:00,952 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 12:07:00,954 INFO L432 ainManager$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 [2022-07-12 12:07:01,013 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9634d2c6/a82b4240b4aa4aa585edda30ae662578/FLAGa3e6be64c [2022-07-12 12:07:01,658 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 12:07:01,659 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 [2022-07-12 12:07:01,693 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9634d2c6/a82b4240b4aa4aa585edda30ae662578/FLAGa3e6be64c [2022-07-12 12:07:01,809 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9634d2c6/a82b4240b4aa4aa585edda30ae662578 [2022-07-12 12:07:01,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 12:07:01,813 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 12:07:01,816 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 12:07:01,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 12:07:01,820 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 12:07:01,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:07:01" (1/1) ... [2022-07-12 12:07:01,822 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39a6753b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:07:01, skipping insertion in model container [2022-07-12 12:07:01,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 12:07:01" (1/1) ... [2022-07-12 12:07:01,828 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 12:07:01,919 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 12:07:03,094 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] [2022-07-12 12:07:03,238 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:07:03,334 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 12:07:03,568 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i[168612,168625] [2022-07-12 12:07:03,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 12:07:03,771 INFO L208 MainTranslator]: Completed translation [2022-07-12 12:07:03,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:07:03 WrapperNode [2022-07-12 12:07:03,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 12:07:03,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 12:07:03,775 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 12:07:03,775 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 12:07:03,783 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:07:03" (1/1) ... [2022-07-12 12:07:03,863 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:07:03" (1/1) ... [2022-07-12 12:07:04,052 INFO L137 Inliner]: procedures = 184, calls = 1940, calls flagged for inlining = 74, calls inlined = 66, statements flattened = 5145 [2022-07-12 12:07:04,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 12:07:04,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 12:07:04,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 12:07:04,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 12:07:04,064 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:07:03" (1/1) ... [2022-07-12 12:07:04,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:07:03" (1/1) ... [2022-07-12 12:07:04,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:07:03" (1/1) ... [2022-07-12 12:07:04,121 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:07:03" (1/1) ... [2022-07-12 12:07:04,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:07:03" (1/1) ... [2022-07-12 12:07:04,275 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:07:03" (1/1) ... [2022-07-12 12:07:04,318 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:07:03" (1/1) ... [2022-07-12 12:07:04,350 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 12:07:04,352 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 12:07:04,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 12:07:04,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 12:07:04,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:07:03" (1/1) ... [2022-07-12 12:07:04,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 12:07:04,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 12:07:04,393 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) [2022-07-12 12:07:04,423 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 [2022-07-12 12:07:04,446 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan [2022-07-12 12:07:04,447 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan [2022-07-12 12:07:04,447 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-07-12 12:07:04,447 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-07-12 12:07:04,447 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_word_swapped [2022-07-12 12:07:04,448 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_word_swapped [2022-07-12 12:07:04,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_update_lock_of_asb100_data [2022-07-12 12:07:04,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_update_lock_of_asb100_data [2022-07-12 12:07:04,448 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_max [2022-07-12 12:07:04,448 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_max [2022-07-12 12:07:04,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_update_lock_of_asb100_data [2022-07-12 12:07:04,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_update_lock_of_asb100_data [2022-07-12 12:07:04,449 INFO L130 BoogieDeclarations]: Found specification of procedure set_in_max [2022-07-12 12:07:04,449 INFO L138 BoogieDeclarations]: Found implementation of procedure set_in_max [2022-07-12 12:07:04,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-12 12:07:04,449 INFO L130 BoogieDeclarations]: Found specification of procedure set_temp_hyst [2022-07-12 12:07:04,449 INFO L138 BoogieDeclarations]: Found implementation of procedure set_temp_hyst [2022-07-12 12:07:04,449 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_TO_REG [2022-07-12 12:07:04,450 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_TO_REG [2022-07-12 12:07:04,450 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2022-07-12 12:07:04,450 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2022-07-12 12:07:04,451 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_get_clientdata [2022-07-12 12:07:04,451 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_get_clientdata [2022-07-12 12:07:04,451 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_hyst [2022-07-12 12:07:04,451 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_hyst [2022-07-12 12:07:04,451 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf_temp_from_reg [2022-07-12 12:07:04,451 INFO L138 BoogieDeclarations]: Found implementation of procedure sprintf_temp_from_reg [2022-07-12 12:07:04,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-12 12:07:04,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-12 12:07:04,452 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_update_device [2022-07-12 12:07:04,452 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_update_device [2022-07-12 12:07:04,452 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_word_swapped [2022-07-12 12:07:04,452 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_word_swapped [2022-07-12 12:07:04,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_asb100_data [2022-07-12 12:07:04,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_asb100_data [2022-07-12 12:07:04,453 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_div [2022-07-12 12:07:04,453 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_div [2022-07-12 12:07:04,453 INFO L130 BoogieDeclarations]: Found specification of procedure set_fan_div [2022-07-12 12:07:04,454 INFO L138 BoogieDeclarations]: Found implementation of procedure set_fan_div [2022-07-12 12:07:04,454 INFO L130 BoogieDeclarations]: Found specification of procedure LM75_TEMP_TO_REG [2022-07-12 12:07:04,454 INFO L138 BoogieDeclarations]: Found implementation of procedure LM75_TEMP_TO_REG [2022-07-12 12:07:04,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-12 12:07:04,454 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-12 12:07:04,454 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-12 12:07:04,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-12 12:07:04,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-12 12:07:04,455 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp [2022-07-12 12:07:04,455 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp [2022-07-12 12:07:04,456 INFO L130 BoogieDeclarations]: Found specification of procedure set_temp_max [2022-07-12 12:07:04,456 INFO L138 BoogieDeclarations]: Found implementation of procedure set_temp_max [2022-07-12 12:07:04,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-12 12:07:04,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-12 12:07:04,456 INFO L130 BoogieDeclarations]: Found specification of procedure IN_TO_REG [2022-07-12 12:07:04,456 INFO L138 BoogieDeclarations]: Found implementation of procedure IN_TO_REG [2022-07-12 12:07:04,457 INFO L130 BoogieDeclarations]: Found specification of procedure set_in_min [2022-07-12 12:07:04,457 INFO L138 BoogieDeclarations]: Found implementation of procedure set_in_min [2022-07-12 12:07:04,458 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_write_value [2022-07-12 12:07:04,458 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_write_value [2022-07-12 12:07:04,458 INFO L130 BoogieDeclarations]: Found specification of procedure TEMP_TO_REG [2022-07-12 12:07:04,459 INFO L138 BoogieDeclarations]: Found implementation of procedure TEMP_TO_REG [2022-07-12 12:07:04,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-12 12:07:04,459 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2022-07-12 12:07:04,459 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2022-07-12 12:07:04,460 INFO L130 BoogieDeclarations]: Found specification of procedure show_in_min [2022-07-12 12:07:04,460 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in_min [2022-07-12 12:07:04,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 12:07:04,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-12 12:07:04,461 INFO L130 BoogieDeclarations]: Found specification of procedure set_fan_min [2022-07-12 12:07:04,461 INFO L138 BoogieDeclarations]: Found implementation of procedure set_fan_min [2022-07-12 12:07:04,461 INFO L130 BoogieDeclarations]: Found specification of procedure show_fan_min [2022-07-12 12:07:04,461 INFO L138 BoogieDeclarations]: Found implementation of procedure show_fan_min [2022-07-12 12:07:04,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-12 12:07:04,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_asb100_data [2022-07-12 12:07:04,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_asb100_data [2022-07-12 12:07:04,462 INFO L130 BoogieDeclarations]: Found specification of procedure show_temp_max [2022-07-12 12:07:04,462 INFO L138 BoogieDeclarations]: Found implementation of procedure show_temp_max [2022-07-12 12:07:04,462 INFO L130 BoogieDeclarations]: Found specification of procedure show_alarm [2022-07-12 12:07:04,463 INFO L138 BoogieDeclarations]: Found implementation of procedure show_alarm [2022-07-12 12:07:04,463 INFO L130 BoogieDeclarations]: Found specification of procedure SENSORS_LIMIT [2022-07-12 12:07:04,463 INFO L138 BoogieDeclarations]: Found implementation of procedure SENSORS_LIMIT [2022-07-12 12:07:04,463 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_read_byte_data [2022-07-12 12:07:04,463 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_read_byte_data [2022-07-12 12:07:04,463 INFO L130 BoogieDeclarations]: Found specification of procedure show_in [2022-07-12 12:07:04,464 INFO L138 BoogieDeclarations]: Found implementation of procedure show_in [2022-07-12 12:07:04,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-12 12:07:04,464 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtol [2022-07-12 12:07:04,464 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtol [2022-07-12 12:07:04,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-12 12:07:04,464 INFO L130 BoogieDeclarations]: Found specification of procedure IN_FROM_REG [2022-07-12 12:07:04,465 INFO L138 BoogieDeclarations]: Found implementation of procedure IN_FROM_REG [2022-07-12 12:07:04,465 INFO L130 BoogieDeclarations]: Found specification of procedure kstrtoul [2022-07-12 12:07:04,465 INFO L138 BoogieDeclarations]: Found implementation of procedure kstrtoul [2022-07-12 12:07:04,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-12 12:07:04,466 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_unregister_device [2022-07-12 12:07:04,466 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_unregister_device [2022-07-12 12:07:04,466 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_detect [2022-07-12 12:07:04,467 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_detect [2022-07-12 12:07:04,467 INFO L130 BoogieDeclarations]: Found specification of procedure asb100_read_value [2022-07-12 12:07:04,467 INFO L138 BoogieDeclarations]: Found implementation of procedure asb100_read_value [2022-07-12 12:07:04,468 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-12 12:07:04,468 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-12 12:07:04,468 INFO L130 BoogieDeclarations]: Found specification of procedure FAN_FROM_REG [2022-07-12 12:07:04,468 INFO L138 BoogieDeclarations]: Found implementation of procedure FAN_FROM_REG [2022-07-12 12:07:04,469 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-12 12:07:04,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-12 12:07:04,469 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_new_dummy [2022-07-12 12:07:04,469 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_new_dummy [2022-07-12 12:07:04,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 12:07:04,469 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_smbus_write_byte_data [2022-07-12 12:07:04,469 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_smbus_write_byte_data [2022-07-12 12:07:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 12:07:04,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 12:07:04,470 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-12 12:07:04,471 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-12 12:07:05,261 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 12:07:05,263 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 12:07:12,050 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 12:07:12,065 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 12:07:12,066 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-12 12:07:12,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:07:12 BoogieIcfgContainer [2022-07-12 12:07:12,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 12:07:12,074 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 12:07:12,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 12:07:12,078 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 12:07:12,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 12:07:01" (1/3) ... [2022-07-12 12:07:12,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67c337f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:07:12, skipping insertion in model container [2022-07-12 12:07:12,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 12:07:03" (2/3) ... [2022-07-12 12:07:12,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67c337f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 12:07:12, skipping insertion in model container [2022-07-12 12:07:12,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 12:07:12" (3/3) ... [2022-07-12 12:07:12,081 INFO L111 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--hwmon--asb100.ko-main.cil.out.i [2022-07-12 12:07:12,096 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 12:07:12,096 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 12:07:12,167 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 12:07:12,174 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@22005d1e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6dfeca47 [2022-07-12 12:07:12,174 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 12:07:12,183 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) [2022-07-12 12:07:12,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-07-12 12:07:12,197 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:07:12,198 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] [2022-07-12 12:07:12,198 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:07:12,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:07:12,203 INFO L85 PathProgramCache]: Analyzing trace with hash -660898654, now seen corresponding path program 1 times [2022-07-12 12:07:12,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:07:12,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327369990] [2022-07-12 12:07:12,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:07:12,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:07:12,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:07:12,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-12 12:07:12,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:07:12,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:07:13,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:07:13,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:07:13,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:07:13,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:07:13,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:07:13,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327369990] [2022-07-12 12:07:13,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327369990] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:07:13,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:07:13,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:07:13,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413488567] [2022-07-12 12:07:13,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:07:13,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:07:13,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:07:13,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:07:13,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:07:13,067 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) [2022-07-12 12:07:15,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:07:15,935 INFO L93 Difference]: Finished difference Result 4080 states and 6739 transitions. [2022-07-12 12:07:15,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:07:15,938 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 [2022-07-12 12:07:15,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:07:15,979 INFO L225 Difference]: With dead ends: 4080 [2022-07-12 12:07:15,980 INFO L226 Difference]: Without dead ends: 2763 [2022-07-12 12:07:16,003 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 [2022-07-12 12:07:16,007 INFO L413 NwaCegarLoop]: 2441 mSDtfsCounter, 2245 mSDsluCounter, 3388 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 632 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2398 SdHoareTripleChecker+Valid, 5829 SdHoareTripleChecker+Invalid, 1402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 632 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-12 12:07:16,011 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2398 Valid, 5829 Invalid, 1402 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [632 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-12 12:07:16,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2763 states. [2022-07-12 12:07:16,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2763 to 2580. [2022-07-12 12:07:16,220 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) [2022-07-12 12:07:16,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2580 states to 2580 states and 3949 transitions. [2022-07-12 12:07:16,248 INFO L78 Accepts]: Start accepts. Automaton has 2580 states and 3949 transitions. Word has length 34 [2022-07-12 12:07:16,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:07:16,248 INFO L495 AbstractCegarLoop]: Abstraction has 2580 states and 3949 transitions. [2022-07-12 12:07:16,249 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) [2022-07-12 12:07:16,249 INFO L276 IsEmpty]: Start isEmpty. Operand 2580 states and 3949 transitions. [2022-07-12 12:07:16,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-12 12:07:16,256 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:07:16,256 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] [2022-07-12 12:07:16,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 12:07:16,257 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:07:16,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:07:16,266 INFO L85 PathProgramCache]: Analyzing trace with hash 191249312, now seen corresponding path program 1 times [2022-07-12 12:07:16,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:07:16,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851853644] [2022-07-12 12:07:16,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:07:16,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:07:16,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:07:16,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 12:07:16,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:07:16,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:07:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:07:16,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:07:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:07:16,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:07:16,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:07:16,598 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851853644] [2022-07-12 12:07:16,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851853644] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:07:16,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:07:16,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:07:16,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040076102] [2022-07-12 12:07:16,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:07:16,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:07:16,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:07:16,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:07:16,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:07:16,601 INFO L87 Difference]: Start difference. First operand 2580 states and 3949 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, (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) [2022-07-12 12:07:19,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:07:19,226 INFO L93 Difference]: Finished difference Result 8008 states and 12437 transitions. [2022-07-12 12:07:19,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:07:19,227 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, (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 38 [2022-07-12 12:07:19,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:07:19,269 INFO L225 Difference]: With dead ends: 8008 [2022-07-12 12:07:19,269 INFO L226 Difference]: Without dead ends: 5431 [2022-07-12 12:07:19,292 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 [2022-07-12 12:07:19,294 INFO L413 NwaCegarLoop]: 2516 mSDtfsCounter, 2154 mSDsluCounter, 3347 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 632 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2310 SdHoareTripleChecker+Valid, 5863 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 632 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-12 12:07:19,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2310 Valid, 5863 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [632 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-07-12 12:07:19,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5431 states. [2022-07-12 12:07:19,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5431 to 5084. [2022-07-12 12:07:19,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5084 states, 3824 states have (on average 1.4848326359832635) internal successors, (5678), 3848 states have internal predecessors, (5678), 1059 states have call successors, (1059), 201 states have call predecessors, (1059), 200 states have return successors, (1050), 1042 states have call predecessors, (1050), 1050 states have call successors, (1050) [2022-07-12 12:07:19,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5084 states to 5084 states and 7787 transitions. [2022-07-12 12:07:19,518 INFO L78 Accepts]: Start accepts. Automaton has 5084 states and 7787 transitions. Word has length 38 [2022-07-12 12:07:19,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:07:19,519 INFO L495 AbstractCegarLoop]: Abstraction has 5084 states and 7787 transitions. [2022-07-12 12:07:19,519 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, (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) [2022-07-12 12:07:19,519 INFO L276 IsEmpty]: Start isEmpty. Operand 5084 states and 7787 transitions. [2022-07-12 12:07:19,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-07-12 12:07:19,522 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:07:19,572 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] [2022-07-12 12:07:19,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 12:07:19,572 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:07:19,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:07:19,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1304109229, now seen corresponding path program 1 times [2022-07-12 12:07:19,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:07:19,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068403207] [2022-07-12 12:07:19,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:07:19,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:07:19,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:07:19,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-12 12:07:19,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:07:19,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:07:19,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:07:19,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:07:19,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:07:19,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:07:19,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:07:19,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068403207] [2022-07-12 12:07:19,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068403207] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:07:19,922 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:07:19,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:07:19,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653567342] [2022-07-12 12:07:19,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:07:19,923 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:07:19,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:07:19,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:07:19,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:07:19,924 INFO L87 Difference]: Start difference. First operand 5084 states and 7787 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) [2022-07-12 12:07:22,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:07:22,394 INFO L93 Difference]: Finished difference Result 15862 states and 24647 transitions. [2022-07-12 12:07:22,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:07:22,394 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 [2022-07-12 12:07:22,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:07:22,466 INFO L225 Difference]: With dead ends: 15862 [2022-07-12 12:07:22,466 INFO L226 Difference]: Without dead ends: 10781 [2022-07-12 12:07:22,496 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 [2022-07-12 12:07:22,500 INFO L413 NwaCegarLoop]: 2509 mSDtfsCounter, 2212 mSDsluCounter, 3352 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 652 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2393 SdHoareTripleChecker+Valid, 5861 SdHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:07:22,501 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2393 Valid, 5861 Invalid, 1424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-12 12:07:22,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10781 states. [2022-07-12 12:07:22,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10781 to 10106. [2022-07-12 12:07:22,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10106 states, 7604 states have (on average 1.483955812730142) internal successors, (11284), 7644 states have internal predecessors, (11284), 2101 states have call successors, (2101), 401 states have call predecessors, (2101), 400 states have return successors, (2092), 2076 states have call predecessors, (2092), 2092 states have call successors, (2092) [2022-07-12 12:07:23,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10106 states to 10106 states and 15477 transitions. [2022-07-12 12:07:23,072 INFO L78 Accepts]: Start accepts. Automaton has 10106 states and 15477 transitions. Word has length 35 [2022-07-12 12:07:23,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:07:23,088 INFO L495 AbstractCegarLoop]: Abstraction has 10106 states and 15477 transitions. [2022-07-12 12:07:23,088 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) [2022-07-12 12:07:23,089 INFO L276 IsEmpty]: Start isEmpty. Operand 10106 states and 15477 transitions. [2022-07-12 12:07:23,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-07-12 12:07:23,092 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:07:23,092 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] [2022-07-12 12:07:23,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 12:07:23,092 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:07:23,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:07:23,093 INFO L85 PathProgramCache]: Analyzing trace with hash -81678797, now seen corresponding path program 1 times [2022-07-12 12:07:23,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:07:23,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651938350] [2022-07-12 12:07:23,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:07:23,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:07:23,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:07:23,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-12 12:07:23,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:07:23,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:07:23,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:07:23,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:07:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:07:23,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:07:23,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:07:23,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651938350] [2022-07-12 12:07:23,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651938350] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:07:23,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:07:23,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:07:23,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48508819] [2022-07-12 12:07:23,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:07:23,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:07:23,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:07:23,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:07:23,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:07:23,442 INFO L87 Difference]: Start difference. First operand 10106 states and 15477 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) [2022-07-12 12:07:26,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:07:26,206 INFO L93 Difference]: Finished difference Result 31544 states and 49009 transitions. [2022-07-12 12:07:26,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:07:26,206 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 [2022-07-12 12:07:26,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:07:26,352 INFO L225 Difference]: With dead ends: 31544 [2022-07-12 12:07:26,352 INFO L226 Difference]: Without dead ends: 21441 [2022-07-12 12:07:26,421 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 [2022-07-12 12:07:26,428 INFO L413 NwaCegarLoop]: 2709 mSDtfsCounter, 2148 mSDsluCounter, 3471 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 611 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2297 SdHoareTripleChecker+Valid, 6180 SdHoareTripleChecker+Invalid, 1386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 611 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:07:26,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2297 Valid, 6180 Invalid, 1386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [611 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-12 12:07:26,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21441 states. [2022-07-12 12:07:27,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21441 to 20110. [2022-07-12 12:07:27,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20110 states, 15132 states have (on average 1.4829500396510706) internal successors, (22440), 15204 states have internal predecessors, (22440), 4177 states have call successors, (4177), 801 states have call predecessors, (4177), 800 states have return successors, (4168), 4136 states have call predecessors, (4168), 4168 states have call successors, (4168) [2022-07-12 12:07:27,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20110 states to 20110 states and 30785 transitions. [2022-07-12 12:07:27,443 INFO L78 Accepts]: Start accepts. Automaton has 20110 states and 30785 transitions. Word has length 38 [2022-07-12 12:07:27,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:07:27,444 INFO L495 AbstractCegarLoop]: Abstraction has 20110 states and 30785 transitions. [2022-07-12 12:07:27,444 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) [2022-07-12 12:07:27,445 INFO L276 IsEmpty]: Start isEmpty. Operand 20110 states and 30785 transitions. [2022-07-12 12:07:27,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-07-12 12:07:27,447 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:07:27,448 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] [2022-07-12 12:07:27,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 12:07:27,449 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:07:27,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:07:27,449 INFO L85 PathProgramCache]: Analyzing trace with hash -565338391, now seen corresponding path program 1 times [2022-07-12 12:07:27,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:07:27,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502275165] [2022-07-12 12:07:27,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:07:27,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:07:27,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:07:27,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-07-12 12:07:27,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:07:27,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:07:27,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:07:27,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:07:27,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:07:27,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:07:27,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:07:27,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502275165] [2022-07-12 12:07:27,928 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502275165] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:07:27,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:07:27,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:07:27,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418059074] [2022-07-12 12:07:27,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:07:27,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:07:27,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:07:27,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:07:27,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:07:27,930 INFO L87 Difference]: Start difference. First operand 20110 states and 30785 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) [2022-07-12 12:07:32,453 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 [] [2022-07-12 12:07:33,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:07:33,442 INFO L93 Difference]: Finished difference Result 62788 states and 97517 transitions. [2022-07-12 12:07:33,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:07:33,443 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 [2022-07-12 12:07:33,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:07:33,904 INFO L225 Difference]: With dead ends: 62788 [2022-07-12 12:07:33,905 INFO L226 Difference]: Without dead ends: 42681 [2022-07-12 12:07:34,008 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 [2022-07-12 12:07:34,010 INFO L413 NwaCegarLoop]: 2867 mSDtfsCounter, 2117 mSDsluCounter, 3621 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 569 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2274 SdHoareTripleChecker+Valid, 6488 SdHoareTripleChecker+Invalid, 1348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 569 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2022-07-12 12:07:34,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2274 Valid, 6488 Invalid, 1348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [569 Valid, 778 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2022-07-12 12:07:34,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42681 states. [2022-07-12 12:07:35,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42681 to 40038. [2022-07-12 12:07:35,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40038 states, 30124 states have (on average 1.4818749170096932) internal successors, (44640), 30260 states have internal predecessors, (44640), 8313 states have call successors, (8313), 1601 states have call predecessors, (8313), 1600 states have return successors, (8304), 8240 states have call predecessors, (8304), 8304 states have call successors, (8304) [2022-07-12 12:07:36,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40038 states to 40038 states and 61257 transitions. [2022-07-12 12:07:36,151 INFO L78 Accepts]: Start accepts. Automaton has 40038 states and 61257 transitions. Word has length 36 [2022-07-12 12:07:36,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:07:36,151 INFO L495 AbstractCegarLoop]: Abstraction has 40038 states and 61257 transitions. [2022-07-12 12:07:36,152 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) [2022-07-12 12:07:36,153 INFO L276 IsEmpty]: Start isEmpty. Operand 40038 states and 61257 transitions. [2022-07-12 12:07:36,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-07-12 12:07:36,154 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:07:36,154 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] [2022-07-12 12:07:36,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 12:07:36,155 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:07:36,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:07:36,155 INFO L85 PathProgramCache]: Analyzing trace with hash 671870231, now seen corresponding path program 1 times [2022-07-12 12:07:36,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:07:36,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456483823] [2022-07-12 12:07:36,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:07:36,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:07:36,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:07:36,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-12 12:07:36,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:07:36,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:07:36,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:07:36,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:07:36,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:07:36,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:07:36,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:07:36,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456483823] [2022-07-12 12:07:36,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456483823] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:07:36,611 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:07:36,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:07:36,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92399475] [2022-07-12 12:07:36,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:07:36,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:07:36,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:07:36,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:07:36,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:07:36,613 INFO L87 Difference]: Start difference. First operand 40038 states and 61257 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, (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) [2022-07-12 12:07:40,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:07:40,518 INFO L93 Difference]: Finished difference Result 125036 states and 194101 transitions. [2022-07-12 12:07:40,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:07:40,518 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 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 42 [2022-07-12 12:07:40,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:07:41,113 INFO L225 Difference]: With dead ends: 125036 [2022-07-12 12:07:41,113 INFO L226 Difference]: Without dead ends: 85001 [2022-07-12 12:07:41,443 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 [2022-07-12 12:07:41,448 INFO L413 NwaCegarLoop]: 2787 mSDtfsCounter, 2140 mSDsluCounter, 3529 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 582 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2298 SdHoareTripleChecker+Valid, 6316 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 582 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-12 12:07:41,448 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2298 Valid, 6316 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [582 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-12 12:07:41,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85001 states. [2022-07-12 12:07:44,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85001 to 79734. [2022-07-12 12:07:44,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79734 states, 59980 states have (on average 1.480760253417806) internal successors, (88816), 60244 states have internal predecessors, (88816), 16553 states have call successors, (16553), 3201 states have call predecessors, (16553), 3200 states have return successors, (16544), 16416 states have call predecessors, (16544), 16544 states have call successors, (16544) [2022-07-12 12:07:45,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79734 states to 79734 states and 121913 transitions. [2022-07-12 12:07:45,784 INFO L78 Accepts]: Start accepts. Automaton has 79734 states and 121913 transitions. Word has length 42 [2022-07-12 12:07:45,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:07:45,786 INFO L495 AbstractCegarLoop]: Abstraction has 79734 states and 121913 transitions. [2022-07-12 12:07:45,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 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) [2022-07-12 12:07:45,787 INFO L276 IsEmpty]: Start isEmpty. Operand 79734 states and 121913 transitions. [2022-07-12 12:07:45,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-07-12 12:07:45,789 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:07:45,789 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] [2022-07-12 12:07:45,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 12:07:45,789 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:07:45,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:07:45,790 INFO L85 PathProgramCache]: Analyzing trace with hash -349180151, now seen corresponding path program 1 times [2022-07-12 12:07:45,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:07:45,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119324256] [2022-07-12 12:07:45,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:07:45,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:07:45,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:07:46,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-12 12:07:46,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:07:46,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:07:46,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:07:46,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:07:46,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:07:46,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:07:46,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:07:46,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119324256] [2022-07-12 12:07:46,076 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119324256] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:07:46,076 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:07:46,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:07:46,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283486261] [2022-07-12 12:07:46,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:07:46,078 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:07:46,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:07:46,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:07:46,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:07:46,079 INFO L87 Difference]: Start difference. First operand 79734 states and 121913 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) [2022-07-12 12:07:52,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:07:52,013 INFO L93 Difference]: Finished difference Result 249052 states and 386405 transitions. [2022-07-12 12:07:52,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:07:52,013 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 [2022-07-12 12:07:52,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:07:53,699 INFO L225 Difference]: With dead ends: 249052 [2022-07-12 12:07:53,700 INFO L226 Difference]: Without dead ends: 169321 [2022-07-12 12:07:54,227 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 [2022-07-12 12:07:54,228 INFO L413 NwaCegarLoop]: 2767 mSDtfsCounter, 2166 mSDsluCounter, 3547 mSDsCounter, 0 mSdLazyCounter, 781 mSolverCounterSat, 590 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2327 SdHoareTripleChecker+Valid, 6314 SdHoareTripleChecker+Invalid, 1371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 590 IncrementalHoareTripleChecker+Valid, 781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-12 12:07:54,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2327 Valid, 6314 Invalid, 1371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [590 Valid, 781 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-12 12:07:54,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169321 states. [2022-07-12 12:07:59,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169321 to 158806. [2022-07-12 12:07:59,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158806 states, 119436 states have (on average 1.4796208848253458) internal successors, (176720), 119956 states have internal predecessors, (176720), 32969 states have call successors, (32969), 6401 states have call predecessors, (32969), 6400 states have return successors, (32960), 32704 states have call predecessors, (32960), 32960 states have call successors, (32960) [2022-07-12 12:08:01,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158806 states to 158806 states and 242649 transitions. [2022-07-12 12:08:01,595 INFO L78 Accepts]: Start accepts. Automaton has 158806 states and 242649 transitions. Word has length 45 [2022-07-12 12:08:01,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 12:08:01,596 INFO L495 AbstractCegarLoop]: Abstraction has 158806 states and 242649 transitions. [2022-07-12 12:08:01,597 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) [2022-07-12 12:08:01,597 INFO L276 IsEmpty]: Start isEmpty. Operand 158806 states and 242649 transitions. [2022-07-12 12:08:01,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-12 12:08:01,598 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 12:08:01,598 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, 1, 1] [2022-07-12 12:08:01,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 12:08:01,599 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 12:08:01,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 12:08:01,600 INFO L85 PathProgramCache]: Analyzing trace with hash -568430875, now seen corresponding path program 1 times [2022-07-12 12:08:01,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 12:08:01,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099332684] [2022-07-12 12:08:01,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 12:08:01,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 12:08:01,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:08:01,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-12 12:08:01,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:08:01,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:08:01,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:08:01,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-12 12:08:01,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 12:08:01,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 12:08:01,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 12:08:01,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099332684] [2022-07-12 12:08:01,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099332684] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 12:08:01,928 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 12:08:01,928 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-12 12:08:01,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089973068] [2022-07-12 12:08:01,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 12:08:01,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-12 12:08:01,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 12:08:01,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-12 12:08:01,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-12 12:08:01,931 INFO L87 Difference]: Start difference. First operand 158806 states and 242649 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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) [2022-07-12 12:08:12,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 12:08:12,597 INFO L93 Difference]: Finished difference Result 496636 states and 770181 transitions. [2022-07-12 12:08:12,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-12 12:08:12,600 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 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 47 [2022-07-12 12:08:12,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 12:08:15,044 INFO L225 Difference]: With dead ends: 496636 [2022-07-12 12:08:15,044 INFO L226 Difference]: Without dead ends: 337833 [2022-07-12 12:08:15,854 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 [2022-07-12 12:08:15,855 INFO L413 NwaCegarLoop]: 2865 mSDtfsCounter, 2170 mSDsluCounter, 3646 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 569 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2334 SdHoareTripleChecker+Valid, 6511 SdHoareTripleChecker+Invalid, 1347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 569 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-12 12:08:15,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2334 Valid, 6511 Invalid, 1347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [569 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-12 12:08:16,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337833 states. [2022-07-12 12:08:26,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337833 to 316822. [2022-07-12 12:08:27,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316822 states, 238220 states have (on average 1.478767525816472) internal successors, (352272), 239252 states have internal predecessors, (352272), 65801 states have call successors, (65801), 12801 states have call predecessors, (65801), 12800 states have return successors, (65792), 65280 states have call predecessors, (65792), 65792 states have call successors, (65792)