./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 3acbab6b9aaee88273e5c2573b1301b2b4d4059e0d0ec0927c600e9ad855395b --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 07:15:52,840 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 07:15:52,841 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 07:15:52,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 07:15:52,891 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 07:15:52,892 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 07:15:52,893 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 07:15:52,895 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 07:15:52,896 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 07:15:52,897 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 07:15:52,898 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 07:15:52,899 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 07:15:52,899 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 07:15:52,901 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 07:15:52,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 07:15:52,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 07:15:52,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 07:15:52,905 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 07:15:52,906 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 07:15:52,908 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 07:15:52,909 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 07:15:52,910 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 07:15:52,911 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 07:15:52,912 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 07:15:52,915 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 07:15:52,915 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 07:15:52,915 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 07:15:52,916 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 07:15:52,916 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 07:15:52,917 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 07:15:52,918 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 07:15:52,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 07:15:52,919 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 07:15:52,920 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 07:15:52,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 07:15:52,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 07:15:52,921 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 07:15:52,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 07:15:52,922 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 07:15:52,923 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 07:15:52,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 07:15:52,924 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 07:15:52,952 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 07:15:52,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 07:15:52,955 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 07:15:52,955 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 07:15:52,956 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 07:15:52,956 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 07:15:52,957 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 07:15:52,957 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 07:15:52,957 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 07:15:52,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 07:15:52,958 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 07:15:52,959 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 07:15:52,959 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 07:15:52,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 07:15:52,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 07:15:52,959 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 07:15:52,959 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 07:15:52,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 07:15:52,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 07:15:52,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 07:15:52,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 07:15:52,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 07:15:52,961 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 07:15:52,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 07:15:52,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 07:15:52,962 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 07:15:52,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 07:15:52,963 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 07:15:52,963 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 07:15:52,963 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 07:15:52,963 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 07:15:52,964 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3acbab6b9aaee88273e5c2573b1301b2b4d4059e0d0ec0927c600e9ad855395b [2021-12-18 07:15:53,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 07:15:53,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 07:15:53,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 07:15:53,251 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 07:15:53,251 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 07:15:53,252 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2021-12-18 07:15:53,305 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd0893403/1254f651babf47de8d33fe11488e0f24/FLAGee65be35b [2021-12-18 07:15:53,964 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 07:15:53,965 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2021-12-18 07:15:54,012 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd0893403/1254f651babf47de8d33fe11488e0f24/FLAGee65be35b [2021-12-18 07:15:54,112 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd0893403/1254f651babf47de8d33fe11488e0f24 [2021-12-18 07:15:54,114 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 07:15:54,117 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 07:15:54,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 07:15:54,119 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 07:15:54,122 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 07:15:54,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:15:54" (1/1) ... [2021-12-18 07:15:54,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@597184df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:15:54, skipping insertion in model container [2021-12-18 07:15:54,124 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 07:15:54" (1/1) ... [2021-12-18 07:15:54,130 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 07:15:54,226 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 07:15:54,858 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i[185252,185265] [2021-12-18 07:15:54,986 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 07:15:55,030 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 07:15:55,223 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i[185252,185265] [2021-12-18 07:15:55,249 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 07:15:55,299 INFO L208 MainTranslator]: Completed translation [2021-12-18 07:15:55,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:15:55 WrapperNode [2021-12-18 07:15:55,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 07:15:55,302 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 07:15:55,302 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 07:15:55,302 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 07:15:55,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:15:55" (1/1) ... [2021-12-18 07:15:55,352 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:15:55" (1/1) ... [2021-12-18 07:15:55,454 INFO L137 Inliner]: procedures = 117, calls = 568, calls flagged for inlining = 30, calls inlined = 25, statements flattened = 1081 [2021-12-18 07:15:55,455 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 07:15:55,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 07:15:55,456 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 07:15:55,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 07:15:55,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:15:55" (1/1) ... [2021-12-18 07:15:55,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:15:55" (1/1) ... [2021-12-18 07:15:55,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:15:55" (1/1) ... [2021-12-18 07:15:55,479 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:15:55" (1/1) ... [2021-12-18 07:15:55,507 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:15:55" (1/1) ... [2021-12-18 07:15:55,514 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:15:55" (1/1) ... [2021-12-18 07:15:55,518 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:15:55" (1/1) ... [2021-12-18 07:15:55,526 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 07:15:55,526 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 07:15:55,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 07:15:55,527 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 07:15:55,528 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:15:55" (1/1) ... [2021-12-18 07:15:55,546 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 07:15:55,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 07:15:55,572 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-18 07:15:55,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-18 07:15:55,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 07:15:55,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 07:15:55,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 07:15:55,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 07:15:55,610 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 07:15:55,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_negative [2021-12-18 07:15:55,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_negative [2021-12-18 07:15:55,611 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2021-12-18 07:15:55,611 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2021-12-18 07:15:55,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-18 07:15:55,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-18 07:15:55,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-18 07:15:55,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-18 07:15:55,612 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-18 07:15:55,612 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-18 07:15:55,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 07:15:55,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 07:15:55,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_udev [2021-12-18 07:15:55,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_udev [2021-12-18 07:15:55,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-18 07:15:55,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-18 07:15:55,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 07:15:55,613 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 07:15:55,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 07:15:55,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 07:15:55,613 INFO L130 BoogieDeclarations]: Found specification of procedure always_connected [2021-12-18 07:15:55,614 INFO L138 BoogieDeclarations]: Found implementation of procedure always_connected [2021-12-18 07:15:55,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 07:15:55,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 07:15:55,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 07:15:55,871 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 07:15:55,872 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 07:15:55,946 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 07:15:56,641 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 07:15:56,652 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 07:15:56,652 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-18 07:15:56,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:15:56 BoogieIcfgContainer [2021-12-18 07:15:56,654 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 07:15:56,656 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 07:15:56,656 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 07:15:56,659 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 07:15:56,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 07:15:54" (1/3) ... [2021-12-18 07:15:56,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fb38c6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:15:56, skipping insertion in model container [2021-12-18 07:15:56,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 07:15:55" (2/3) ... [2021-12-18 07:15:56,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fb38c6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 07:15:56, skipping insertion in model container [2021-12-18 07:15:56,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:15:56" (3/3) ... [2021-12-18 07:15:56,663 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--net--usb--cdc_subset.ko-entry_point.cil.out.i [2021-12-18 07:15:56,668 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 07:15:56,668 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-18 07:15:56,716 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 07:15:56,723 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-18 07:15:56,723 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-18 07:15:56,742 INFO L276 IsEmpty]: Start isEmpty. Operand has 186 states, 141 states have (on average 1.4539007092198581) internal successors, (205), 157 states have internal predecessors, (205), 34 states have call successors, (34), 10 states have call predecessors, (34), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2021-12-18 07:15:56,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-18 07:15:56,755 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:15:56,756 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 07:15:56,756 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:15:56,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:15:56,761 INFO L85 PathProgramCache]: Analyzing trace with hash 665515163, now seen corresponding path program 1 times [2021-12-18 07:15:56,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:15:56,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493341314] [2021-12-18 07:15:56,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:15:56,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:15:57,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:57,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 07:15:57,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:57,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:15:57,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:57,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:15:57,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:57,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 07:15:57,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:57,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:15:57,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:57,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:15:57,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:57,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 07:15:57,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:57,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:15:57,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:57,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:15:57,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:57,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 07:15:57,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:57,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:15:57,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:57,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:15:57,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:57,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 07:15:57,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:57,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:15:57,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:57,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:15:57,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:57,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 07:15:57,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:57,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:15:57,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:57,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:15:57,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:57,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 07:15:57,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:57,615 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-12-18 07:15:57,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:15:57,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493341314] [2021-12-18 07:15:57,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493341314] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:15:57,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 07:15:57,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 07:15:57,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916084042] [2021-12-18 07:15:57,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:15:57,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 07:15:57,622 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:15:57,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 07:15:57,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-18 07:15:57,646 INFO L87 Difference]: Start difference. First operand has 186 states, 141 states have (on average 1.4539007092198581) internal successors, (205), 157 states have internal predecessors, (205), 34 states have call successors, (34), 10 states have call predecessors, (34), 9 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 07:15:57,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:15:57,835 INFO L93 Difference]: Finished difference Result 367 states and 532 transitions. [2021-12-18 07:15:57,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-18 07:15:57,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 118 [2021-12-18 07:15:57,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:15:57,854 INFO L225 Difference]: With dead ends: 367 [2021-12-18 07:15:57,855 INFO L226 Difference]: Without dead ends: 170 [2021-12-18 07:15:57,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-18 07:15:57,871 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 22 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 613 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 07:15:57,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 613 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 07:15:57,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-12-18 07:15:57,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 170. [2021-12-18 07:15:57,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 136 states have (on average 1.3823529411764706) internal successors, (188), 141 states have internal predecessors, (188), 25 states have call successors, (25), 9 states have call predecessors, (25), 8 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2021-12-18 07:15:57,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 232 transitions. [2021-12-18 07:15:57,918 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 232 transitions. Word has length 118 [2021-12-18 07:15:57,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:15:57,918 INFO L470 AbstractCegarLoop]: Abstraction has 170 states and 232 transitions. [2021-12-18 07:15:57,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 07:15:57,919 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 232 transitions. [2021-12-18 07:15:57,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-18 07:15:57,922 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:15:57,922 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 07:15:57,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 07:15:57,923 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:15:57,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:15:57,923 INFO L85 PathProgramCache]: Analyzing trace with hash -96288345, now seen corresponding path program 1 times [2021-12-18 07:15:57,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:15:57,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448977940] [2021-12-18 07:15:57,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:15:57,924 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:15:58,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 07:15:58,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:15:58,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:15:58,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 07:15:58,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:15:58,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:15:58,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 07:15:58,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:15:58,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:15:58,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 07:15:58,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:15:58,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:15:58,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 07:15:58,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:15:58,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:15:58,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 07:15:58,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:15:58,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:15:58,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-18 07:15:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,276 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-12-18 07:15:58,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:15:58,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448977940] [2021-12-18 07:15:58,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448977940] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:15:58,278 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 07:15:58,279 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 07:15:58,279 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612600227] [2021-12-18 07:15:58,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:15:58,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 07:15:58,281 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:15:58,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 07:15:58,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-18 07:15:58,282 INFO L87 Difference]: Start difference. First operand 170 states and 232 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 07:15:58,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:15:58,515 INFO L93 Difference]: Finished difference Result 435 states and 600 transitions. [2021-12-18 07:15:58,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 07:15:58,516 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 118 [2021-12-18 07:15:58,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:15:58,519 INFO L225 Difference]: With dead ends: 435 [2021-12-18 07:15:58,519 INFO L226 Difference]: Without dead ends: 283 [2021-12-18 07:15:58,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-18 07:15:58,521 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 198 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 752 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-18 07:15:58,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [206 Valid, 752 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-18 07:15:58,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2021-12-18 07:15:58,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 269. [2021-12-18 07:15:58,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 221 states have (on average 1.420814479638009) internal successors, (314), 226 states have internal predecessors, (314), 34 states have call successors, (34), 14 states have call predecessors, (34), 13 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2021-12-18 07:15:58,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 376 transitions. [2021-12-18 07:15:58,553 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 376 transitions. Word has length 118 [2021-12-18 07:15:58,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:15:58,554 INFO L470 AbstractCegarLoop]: Abstraction has 269 states and 376 transitions. [2021-12-18 07:15:58,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 07:15:58,554 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 376 transitions. [2021-12-18 07:15:58,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2021-12-18 07:15:58,560 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:15:58,560 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 07:15:58,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 07:15:58,561 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:15:58,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:15:58,561 INFO L85 PathProgramCache]: Analyzing trace with hash -358901924, now seen corresponding path program 1 times [2021-12-18 07:15:58,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:15:58,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004705272] [2021-12-18 07:15:58,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:15:58,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:15:58,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 07:15:58,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:15:58,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:15:58,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 07:15:58,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:15:58,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:15:58,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 07:15:58,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:15:58,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:15:58,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 07:15:58,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:15:58,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:15:58,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 07:15:58,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:15:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:15:58,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 07:15:58,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:15:58,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:15:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:58,952 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2021-12-18 07:15:58,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:15:58,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004705272] [2021-12-18 07:15:58,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004705272] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:15:58,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 07:15:58,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 07:15:58,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696330366] [2021-12-18 07:15:58,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:15:58,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 07:15:58,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:15:58,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 07:15:58,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-18 07:15:58,956 INFO L87 Difference]: Start difference. First operand 269 states and 376 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-12-18 07:15:59,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:15:59,221 INFO L93 Difference]: Finished difference Result 730 states and 1030 transitions. [2021-12-18 07:15:59,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 07:15:59,222 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 117 [2021-12-18 07:15:59,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:15:59,228 INFO L225 Difference]: With dead ends: 730 [2021-12-18 07:15:59,228 INFO L226 Difference]: Without dead ends: 479 [2021-12-18 07:15:59,229 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-18 07:15:59,233 INFO L933 BasicCegarLoop]: 289 mSDtfsCounter, 188 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-18 07:15:59,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 868 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-18 07:15:59,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2021-12-18 07:15:59,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 475. [2021-12-18 07:15:59,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 399 states have (on average 1.4335839598997493) internal successors, (572), 404 states have internal predecessors, (572), 52 states have call successors, (52), 24 states have call predecessors, (52), 23 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2021-12-18 07:15:59,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 670 transitions. [2021-12-18 07:15:59,272 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 670 transitions. Word has length 117 [2021-12-18 07:15:59,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:15:59,274 INFO L470 AbstractCegarLoop]: Abstraction has 475 states and 670 transitions. [2021-12-18 07:15:59,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (9), 4 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-12-18 07:15:59,275 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 670 transitions. [2021-12-18 07:15:59,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2021-12-18 07:15:59,280 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:15:59,280 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 07:15:59,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 07:15:59,281 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:15:59,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:15:59,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1959898998, now seen corresponding path program 1 times [2021-12-18 07:15:59,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:15:59,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557913760] [2021-12-18 07:15:59,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:15:59,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:15:59,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:59,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 07:15:59,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:59,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:15:59,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:59,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:15:59,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:59,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 07:15:59,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:59,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:15:59,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:59,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:15:59,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:59,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 07:15:59,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:59,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:15:59,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:59,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:15:59,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:59,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 07:15:59,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:59,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:15:59,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:59,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:15:59,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:59,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 07:15:59,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:59,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:15:59,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:59,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:15:59,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:59,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 07:15:59,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:59,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:15:59,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:59,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:15:59,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:59,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-18 07:15:59,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:59,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:15:59,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:59,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:15:59,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:15:59,670 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-12-18 07:15:59,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:15:59,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557913760] [2021-12-18 07:15:59,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557913760] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:15:59,671 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 07:15:59,671 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 07:15:59,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885528367] [2021-12-18 07:15:59,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:15:59,672 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 07:15:59,672 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:15:59,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 07:15:59,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-18 07:15:59,673 INFO L87 Difference]: Start difference. First operand 475 states and 670 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 07:15:59,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:15:59,813 INFO L93 Difference]: Finished difference Result 477 states and 671 transitions. [2021-12-18 07:15:59,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 07:15:59,813 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 137 [2021-12-18 07:15:59,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:15:59,816 INFO L225 Difference]: With dead ends: 477 [2021-12-18 07:15:59,817 INFO L226 Difference]: Without dead ends: 474 [2021-12-18 07:15:59,817 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-18 07:15:59,818 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 198 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 07:15:59,818 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 559 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 07:15:59,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2021-12-18 07:15:59,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 474. [2021-12-18 07:15:59,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 399 states have (on average 1.431077694235589) internal successors, (571), 403 states have internal predecessors, (571), 51 states have call successors, (51), 24 states have call predecessors, (51), 23 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2021-12-18 07:15:59,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 668 transitions. [2021-12-18 07:15:59,841 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 668 transitions. Word has length 137 [2021-12-18 07:15:59,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:15:59,841 INFO L470 AbstractCegarLoop]: Abstraction has 474 states and 668 transitions. [2021-12-18 07:15:59,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 07:15:59,842 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 668 transitions. [2021-12-18 07:15:59,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-12-18 07:15:59,843 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:15:59,843 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 07:15:59,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 07:15:59,844 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:15:59,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:15:59,844 INFO L85 PathProgramCache]: Analyzing trace with hash 627340524, now seen corresponding path program 1 times [2021-12-18 07:15:59,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:15:59,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885998303] [2021-12-18 07:15:59,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:15:59,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:15:59,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 07:16:00,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:00,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:00,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 07:16:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:00,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:00,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 07:16:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:00,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:00,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 07:16:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:00,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 07:16:00,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:00,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:00,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 07:16:00,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:00,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:00,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-18 07:16:00,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:00,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,186 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-12-18 07:16:00,187 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:16:00,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885998303] [2021-12-18 07:16:00,187 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885998303] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:16:00,187 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 07:16:00,187 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 07:16:00,187 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118781641] [2021-12-18 07:16:00,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:16:00,188 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 07:16:00,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:16:00,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 07:16:00,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-18 07:16:00,189 INFO L87 Difference]: Start difference. First operand 474 states and 668 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 07:16:00,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:16:00,302 INFO L93 Difference]: Finished difference Result 476 states and 669 transitions. [2021-12-18 07:16:00,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 07:16:00,302 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 138 [2021-12-18 07:16:00,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:16:00,305 INFO L225 Difference]: With dead ends: 476 [2021-12-18 07:16:00,305 INFO L226 Difference]: Without dead ends: 473 [2021-12-18 07:16:00,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-18 07:16:00,307 INFO L933 BasicCegarLoop]: 223 mSDtfsCounter, 215 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 07:16:00,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [225 Valid, 390 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 07:16:00,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 473 states. [2021-12-18 07:16:00,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 473 to 473. [2021-12-18 07:16:00,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 399 states have (on average 1.4285714285714286) internal successors, (570), 402 states have internal predecessors, (570), 50 states have call successors, (50), 24 states have call predecessors, (50), 23 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2021-12-18 07:16:00,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 666 transitions. [2021-12-18 07:16:00,325 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 666 transitions. Word has length 138 [2021-12-18 07:16:00,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:16:00,326 INFO L470 AbstractCegarLoop]: Abstraction has 473 states and 666 transitions. [2021-12-18 07:16:00,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 07:16:00,326 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 666 transitions. [2021-12-18 07:16:00,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-12-18 07:16:00,327 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:16:00,328 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 07:16:00,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 07:16:00,328 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:16:00,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:16:00,329 INFO L85 PathProgramCache]: Analyzing trace with hash -2027261639, now seen corresponding path program 1 times [2021-12-18 07:16:00,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:16:00,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398036583] [2021-12-18 07:16:00,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:16:00,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:16:00,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 07:16:00,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:00,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:00,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 07:16:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:00,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:00,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 07:16:00,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:00,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 07:16:00,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:00,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:00,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 07:16:00,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:00,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:00,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 07:16:00,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:00,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:00,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-18 07:16:00,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:00,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:00,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,614 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-12-18 07:16:00,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:16:00,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398036583] [2021-12-18 07:16:00,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398036583] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:16:00,615 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 07:16:00,615 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 07:16:00,615 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314370286] [2021-12-18 07:16:00,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:16:00,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 07:16:00,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:16:00,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 07:16:00,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-18 07:16:00,617 INFO L87 Difference]: Start difference. First operand 473 states and 666 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 07:16:00,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:16:00,753 INFO L93 Difference]: Finished difference Result 475 states and 667 transitions. [2021-12-18 07:16:00,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 07:16:00,753 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 139 [2021-12-18 07:16:00,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:16:00,756 INFO L225 Difference]: With dead ends: 475 [2021-12-18 07:16:00,756 INFO L226 Difference]: Without dead ends: 472 [2021-12-18 07:16:00,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-18 07:16:00,760 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 192 mSDsluCounter, 330 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-18 07:16:00,760 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 551 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-18 07:16:00,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2021-12-18 07:16:00,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 472. [2021-12-18 07:16:00,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 399 states have (on average 1.4260651629072683) internal successors, (569), 401 states have internal predecessors, (569), 49 states have call successors, (49), 24 states have call predecessors, (49), 23 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2021-12-18 07:16:00,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 664 transitions. [2021-12-18 07:16:00,783 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 664 transitions. Word has length 139 [2021-12-18 07:16:00,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:16:00,784 INFO L470 AbstractCegarLoop]: Abstraction has 472 states and 664 transitions. [2021-12-18 07:16:00,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 07:16:00,784 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 664 transitions. [2021-12-18 07:16:00,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-12-18 07:16:00,787 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:16:00,788 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 07:16:00,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 07:16:00,788 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:16:00,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:16:00,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1579422095, now seen corresponding path program 1 times [2021-12-18 07:16:00,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:16:00,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339001444] [2021-12-18 07:16:00,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:16:00,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:16:00,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 07:16:00,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:00,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:00,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:00,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 07:16:01,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:01,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:01,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 07:16:01,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:01,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:01,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 07:16:01,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:01,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 07:16:01,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:01,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 07:16:01,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:01,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:01,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-18 07:16:01,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:01,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:01,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,147 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2021-12-18 07:16:01,147 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:16:01,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339001444] [2021-12-18 07:16:01,147 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339001444] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:16:01,147 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 07:16:01,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-18 07:16:01,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810645757] [2021-12-18 07:16:01,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:16:01,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-18 07:16:01,148 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:16:01,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-18 07:16:01,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-18 07:16:01,149 INFO L87 Difference]: Start difference. First operand 472 states and 664 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 07:16:01,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:16:01,354 INFO L93 Difference]: Finished difference Result 1334 states and 1900 transitions. [2021-12-18 07:16:01,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 07:16:01,355 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 140 [2021-12-18 07:16:01,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:16:01,362 INFO L225 Difference]: With dead ends: 1334 [2021-12-18 07:16:01,362 INFO L226 Difference]: Without dead ends: 886 [2021-12-18 07:16:01,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-18 07:16:01,365 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 235 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 589 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-18 07:16:01,365 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [245 Valid, 589 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-18 07:16:01,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2021-12-18 07:16:01,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 880. [2021-12-18 07:16:01,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 880 states, 751 states have (on average 1.4394141145139814) internal successors, (1081), 753 states have internal predecessors, (1081), 87 states have call successors, (87), 44 states have call predecessors, (87), 41 states have return successors, (84), 82 states have call predecessors, (84), 84 states have call successors, (84) [2021-12-18 07:16:01,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1252 transitions. [2021-12-18 07:16:01,409 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1252 transitions. Word has length 140 [2021-12-18 07:16:01,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:16:01,410 INFO L470 AbstractCegarLoop]: Abstraction has 880 states and 1252 transitions. [2021-12-18 07:16:01,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-12-18 07:16:01,410 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1252 transitions. [2021-12-18 07:16:01,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-12-18 07:16:01,413 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:16:01,414 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 07:16:01,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 07:16:01,414 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:16:01,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:16:01,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1050241138, now seen corresponding path program 1 times [2021-12-18 07:16:01,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:16:01,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591732065] [2021-12-18 07:16:01,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:16:01,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:16:01,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 07:16:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:01,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:01,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 07:16:01,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:01,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:01,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 07:16:01,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:01,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:01,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 07:16:01,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:01,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:01,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 07:16:01,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:01,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 07:16:01,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:01,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-18 07:16:01,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:01,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:01,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 07:16:01,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 07:16:01,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:01,769 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 296 trivial. 0 not checked. [2021-12-18 07:16:01,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:16:01,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591732065] [2021-12-18 07:16:01,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591732065] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:16:01,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 07:16:01,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 07:16:01,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024434382] [2021-12-18 07:16:01,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:16:01,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 07:16:01,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:16:01,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 07:16:01,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-12-18 07:16:01,772 INFO L87 Difference]: Start difference. First operand 880 states and 1252 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2021-12-18 07:16:02,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:16:02,057 INFO L93 Difference]: Finished difference Result 1730 states and 2467 transitions. [2021-12-18 07:16:02,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-18 07:16:02,057 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 159 [2021-12-18 07:16:02,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:16:02,062 INFO L225 Difference]: With dead ends: 1730 [2021-12-18 07:16:02,062 INFO L226 Difference]: Without dead ends: 882 [2021-12-18 07:16:02,064 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-12-18 07:16:02,064 INFO L933 BasicCegarLoop]: 371 mSDtfsCounter, 232 mSDsluCounter, 719 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 1090 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-18 07:16:02,065 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [242 Valid, 1090 Invalid, 221 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-18 07:16:02,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2021-12-18 07:16:02,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 877. [2021-12-18 07:16:02,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 749 states have (on average 1.4352469959946594) internal successors, (1075), 751 states have internal predecessors, (1075), 86 states have call successors, (86), 43 states have call predecessors, (86), 41 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2021-12-18 07:16:02,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1243 transitions. [2021-12-18 07:16:02,103 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1243 transitions. Word has length 159 [2021-12-18 07:16:02,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:16:02,103 INFO L470 AbstractCegarLoop]: Abstraction has 877 states and 1243 transitions. [2021-12-18 07:16:02,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 3 states have internal predecessors, (57), 2 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2021-12-18 07:16:02,103 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1243 transitions. [2021-12-18 07:16:02,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2021-12-18 07:16:02,105 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:16:02,106 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 07:16:02,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 07:16:02,106 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:16:02,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:16:02,106 INFO L85 PathProgramCache]: Analyzing trace with hash 296332059, now seen corresponding path program 1 times [2021-12-18 07:16:02,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:16:02,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395517123] [2021-12-18 07:16:02,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:16:02,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:16:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:02,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 07:16:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:02,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:02,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:02,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:02,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:02,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 07:16:02,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:02,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:02,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:02,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:02,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:02,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 07:16:02,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:02,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:02,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:02,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:02,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:02,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 07:16:02,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:02,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:02,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:02,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:02,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:02,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 07:16:02,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:02,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:02,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:02,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:02,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:02,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 07:16:02,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:02,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:02,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:02,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:02,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:02,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-18 07:16:02,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:02,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:02,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:02,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 07:16:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:02,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 07:16:02,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:02,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:02,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:02,528 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2021-12-18 07:16:02,528 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:16:02,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395517123] [2021-12-18 07:16:02,528 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395517123] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:16:02,528 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 07:16:02,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-18 07:16:02,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028854107] [2021-12-18 07:16:02,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:16:02,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-18 07:16:02,530 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:16:02,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-18 07:16:02,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2021-12-18 07:16:02,531 INFO L87 Difference]: Start difference. First operand 877 states and 1243 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 7 states have internal predecessors, (58), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2021-12-18 07:16:02,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:16:02,829 INFO L93 Difference]: Finished difference Result 2355 states and 3452 transitions. [2021-12-18 07:16:02,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-18 07:16:02,829 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 7 states have internal predecessors, (58), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 164 [2021-12-18 07:16:02,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:16:02,836 INFO L225 Difference]: With dead ends: 2355 [2021-12-18 07:16:02,836 INFO L226 Difference]: Without dead ends: 1510 [2021-12-18 07:16:02,839 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-12-18 07:16:02,839 INFO L933 BasicCegarLoop]: 495 mSDtfsCounter, 431 mSDsluCounter, 2709 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 3204 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-18 07:16:02,840 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [439 Valid, 3204 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-18 07:16:02,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1510 states. [2021-12-18 07:16:02,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1510 to 879. [2021-12-18 07:16:02,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 879 states, 752 states have (on average 1.4308510638297873) internal successors, (1076), 753 states have internal predecessors, (1076), 85 states have call successors, (85), 43 states have call predecessors, (85), 41 states have return successors, (82), 82 states have call predecessors, (82), 82 states have call successors, (82) [2021-12-18 07:16:02,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 879 states to 879 states and 1243 transitions. [2021-12-18 07:16:02,881 INFO L78 Accepts]: Start accepts. Automaton has 879 states and 1243 transitions. Word has length 164 [2021-12-18 07:16:02,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:16:02,882 INFO L470 AbstractCegarLoop]: Abstraction has 879 states and 1243 transitions. [2021-12-18 07:16:02,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 7 states have internal predecessors, (58), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2021-12-18 07:16:02,882 INFO L276 IsEmpty]: Start isEmpty. Operand 879 states and 1243 transitions. [2021-12-18 07:16:02,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-12-18 07:16:02,885 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 07:16:02,885 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 07:16:02,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 07:16:02,885 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-18 07:16:02,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 07:16:02,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1563381600, now seen corresponding path program 1 times [2021-12-18 07:16:02,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 07:16:02,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085256488] [2021-12-18 07:16:02,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 07:16:02,886 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 07:16:02,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:03,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-18 07:16:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:03,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:03,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:03,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:03,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:03,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-18 07:16:03,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:03,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:03,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:03,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-18 07:16:03,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:03,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:03,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:03,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:03,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:03,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-18 07:16:03,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:03,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:03,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:03,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:03,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-18 07:16:03,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:03,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:03,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:03,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-18 07:16:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:03,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:03,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:03,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:03,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:03,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-18 07:16:03,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:03,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 07:16:03,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:03,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 07:16:03,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:03,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 07:16:03,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:03,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 07:16:03,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:03,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 07:16:03,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 07:16:03,197 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2021-12-18 07:16:03,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 07:16:03,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085256488] [2021-12-18 07:16:03,198 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085256488] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 07:16:03,198 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 07:16:03,198 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-18 07:16:03,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737518209] [2021-12-18 07:16:03,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 07:16:03,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-18 07:16:03,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 07:16:03,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-18 07:16:03,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-12-18 07:16:03,200 INFO L87 Difference]: Start difference. First operand 879 states and 1243 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-18 07:16:03,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 07:16:03,459 INFO L93 Difference]: Finished difference Result 1190 states and 1736 transitions. [2021-12-18 07:16:03,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-18 07:16:03,460 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 171 [2021-12-18 07:16:03,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 07:16:03,460 INFO L225 Difference]: With dead ends: 1190 [2021-12-18 07:16:03,461 INFO L226 Difference]: Without dead ends: 0 [2021-12-18 07:16:03,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-12-18 07:16:03,464 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 437 mSDsluCounter, 1059 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-18 07:16:03,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 1390 Invalid, 239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-18 07:16:03,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-18 07:16:03,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-18 07:16:03,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-18 07:16:03,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-18 07:16:03,466 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 171 [2021-12-18 07:16:03,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 07:16:03,466 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-18 07:16:03,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (14), 5 states have call predecessors, (14), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-12-18 07:16:03,467 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-18 07:16:03,467 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-18 07:16:03,469 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-18 07:16:03,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 07:16:03,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-18 07:16:05,438 INFO L861 garLoopResultBuilder]: At program point usbnet_disconnectENTRY(lines 7015 7017) the Hoare annotation is: true [2021-12-18 07:16:05,439 INFO L858 garLoopResultBuilder]: For program point usbnet_disconnectFINAL(lines 7015 7017) no Hoare annotation was computed. [2021-12-18 07:16:05,439 INFO L858 garLoopResultBuilder]: For program point usbnet_disconnectEXIT(lines 7015 7017) no Hoare annotation was computed. [2021-12-18 07:16:05,439 INFO L858 garLoopResultBuilder]: For program point ldv_mutex_lock_udevFINAL(lines 6853 6863) no Hoare annotation was computed. [2021-12-18 07:16:05,439 INFO L854 garLoopResultBuilder]: At program point ldv_mutex_lock_udevENTRY(lines 6853 6863) the Hoare annotation is: (or (not (= |old(~ldv_mutex_udev~0)| 1)) (not (= ~ldv_mutex_mutex_of_device~0 1)) (= ~ldv_mutex_udev~0 1) (not (= ~ldv_mutex_lock~0 1)) (not (= ~ldv_mutex_i_mutex_of_inode~0 1))) [2021-12-18 07:16:05,439 INFO L858 garLoopResultBuilder]: For program point L6856-1(lines 6856 6859) no Hoare annotation was computed. [2021-12-18 07:16:05,439 INFO L858 garLoopResultBuilder]: For program point L6856(lines 6856 6859) no Hoare annotation was computed. [2021-12-18 07:16:05,440 INFO L854 garLoopResultBuilder]: At program point L6857(line 6857) the Hoare annotation is: (or (not (= |old(~ldv_mutex_udev~0)| 1)) (not (= ~ldv_mutex_mutex_of_device~0 1)) (not (= ~ldv_mutex_lock~0 1)) (not (= ~ldv_mutex_i_mutex_of_inode~0 1))) [2021-12-18 07:16:05,440 INFO L858 garLoopResultBuilder]: For program point ldv_mutex_lock_udevEXIT(lines 6853 6863) no Hoare annotation was computed. [2021-12-18 07:16:05,440 INFO L858 garLoopResultBuilder]: For program point L5762-1(line 5762) no Hoare annotation was computed. [2021-12-18 07:16:05,440 INFO L858 garLoopResultBuilder]: For program point ldv_init_zallocFINAL(lines 5757 5767) no Hoare annotation was computed. [2021-12-18 07:16:05,441 INFO L858 garLoopResultBuilder]: For program point ldv_init_zallocEXIT(lines 5757 5767) no Hoare annotation was computed. [2021-12-18 07:16:05,441 INFO L854 garLoopResultBuilder]: At program point ldv_init_zallocENTRY(lines 5757 5767) the Hoare annotation is: (let ((.cse0 (not (= ~ldv_mutex_udev~0 1))) (.cse1 (not (= ~ldv_mutex_mutex_of_device~0 1))) (.cse2 (not (= ~ldv_mutex_lock~0 1))) (.cse3 (not (= ~ldv_mutex_i_mutex_of_inode~0 1))) (.cse4 (and (= |#memory_int| |old(#memory_int)|) (= |#valid| |old(#valid)|) (= |#length| |old(#length)|)))) (and (or .cse0 .cse1 (not (= ~ldv_state_variable_0~0 1)) .cse2 .cse3 .cse4) (or (not (= ~ldv_state_variable_6~0 0)) .cse0 .cse1 .cse2 .cse3 .cse4))) [2021-12-18 07:16:05,442 INFO L858 garLoopResultBuilder]: For program point L5764-1(line 5764) no Hoare annotation was computed. [2021-12-18 07:16:05,442 INFO L854 garLoopResultBuilder]: At program point L5762(line 5762) the Hoare annotation is: (let ((.cse0 (= |#memory_int| |old(#memory_int)|)) (.cse1 (not (= ~ldv_mutex_udev~0 1))) (.cse2 (not (= ~ldv_mutex_mutex_of_device~0 1))) (.cse3 (not (= ~ldv_mutex_lock~0 1))) (.cse4 (not (= ~ldv_mutex_i_mutex_of_inode~0 1)))) (and (or .cse0 (not (= ~ldv_state_variable_6~0 0)) .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse2 (not (= ~ldv_state_variable_0~0 1)) .cse3 .cse4))) [2021-12-18 07:16:05,443 INFO L861 garLoopResultBuilder]: At program point L5764(line 5764) the Hoare annotation is: true [2021-12-18 07:16:05,443 INFO L861 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 5720 5722) the Hoare annotation is: true [2021-12-18 07:16:05,443 INFO L858 garLoopResultBuilder]: For program point L5721-2(lines 5720 5722) no Hoare annotation was computed. [2021-12-18 07:16:05,443 INFO L858 garLoopResultBuilder]: For program point L5721(line 5721) no Hoare annotation was computed. [2021-12-18 07:16:05,443 INFO L858 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 5720 5722) no Hoare annotation was computed. [2021-12-18 07:16:05,444 INFO L861 garLoopResultBuilder]: At program point ldv_undef_intENTRY(lines 5776 5783) the Hoare annotation is: true [2021-12-18 07:16:05,444 INFO L858 garLoopResultBuilder]: For program point ldv_undef_intFINAL(lines 5776 5783) no Hoare annotation was computed. [2021-12-18 07:16:05,444 INFO L858 garLoopResultBuilder]: For program point ldv_undef_intEXIT(lines 5776 5783) no Hoare annotation was computed. [2021-12-18 07:16:05,444 INFO L858 garLoopResultBuilder]: For program point ldv_errorFINAL(lines 6329 6335) no Hoare annotation was computed. [2021-12-18 07:16:05,444 INFO L861 garLoopResultBuilder]: At program point ldv_errorENTRY(lines 6329 6335) the Hoare annotation is: true [2021-12-18 07:16:05,444 INFO L858 garLoopResultBuilder]: For program point ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6333) no Hoare annotation was computed. [2021-12-18 07:16:05,444 INFO L858 garLoopResultBuilder]: For program point ldv_errorEXIT(lines 6329 6335) no Hoare annotation was computed. [2021-12-18 07:16:05,445 INFO L858 garLoopResultBuilder]: For program point ldv_stopEXIT(lines 5792 5798) no Hoare annotation was computed. [2021-12-18 07:16:05,445 INFO L861 garLoopResultBuilder]: At program point ldv_stopENTRY(lines 5792 5798) the Hoare annotation is: true [2021-12-18 07:16:05,445 INFO L858 garLoopResultBuilder]: For program point L6047(lines 6047 6062) no Hoare annotation was computed. [2021-12-18 07:16:05,445 INFO L858 garLoopResultBuilder]: For program point L6080-2(lines 6067 6122) no Hoare annotation was computed. [2021-12-18 07:16:05,445 INFO L858 garLoopResultBuilder]: For program point L6113(lines 6113 6116) no Hoare annotation was computed. [2021-12-18 07:16:05,445 INFO L858 garLoopResultBuilder]: For program point L6080(lines 6080 6085) no Hoare annotation was computed. [2021-12-18 07:16:05,446 INFO L854 garLoopResultBuilder]: At program point L7005(lines 7004 7006) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1)) [2021-12-18 07:16:05,446 INFO L858 garLoopResultBuilder]: For program point L6213(line 6213) no Hoare annotation was computed. [2021-12-18 07:16:05,447 INFO L854 garLoopResultBuilder]: At program point L6081(line 6081) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1)) [2021-12-18 07:16:05,447 INFO L858 garLoopResultBuilder]: For program point L6081-1(line 6081) no Hoare annotation was computed. [2021-12-18 07:16:05,447 INFO L858 garLoopResultBuilder]: For program point L6973(lines 6964 6982) no Hoare annotation was computed. [2021-12-18 07:16:05,447 INFO L861 garLoopResultBuilder]: At program point L6214(line 6214) the Hoare annotation is: true [2021-12-18 07:16:05,447 INFO L854 garLoopResultBuilder]: At program point L6974(line 6974) the Hoare annotation is: false [2021-12-18 07:16:05,447 INFO L858 garLoopResultBuilder]: For program point L6049(lines 6049 6059) no Hoare annotation was computed. [2021-12-18 07:16:05,448 INFO L858 garLoopResultBuilder]: For program point L6050(line 6050) no Hoare annotation was computed. [2021-12-18 07:16:05,448 INFO L858 garLoopResultBuilder]: For program point L5852(lines 5852 5855) no Hoare annotation was computed. [2021-12-18 07:16:05,448 INFO L858 garLoopResultBuilder]: For program point L6051(lines 6051 6055) no Hoare annotation was computed. [2021-12-18 07:16:05,448 INFO L854 garLoopResultBuilder]: At program point L7009(lines 7008 7010) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1) (= ~ldv_state_variable_0~0 1)) [2021-12-18 07:16:05,448 INFO L858 garLoopResultBuilder]: For program point L6184(line 6184) no Hoare annotation was computed. [2021-12-18 07:16:05,448 INFO L858 garLoopResultBuilder]: For program point L6052-1(line 6052) no Hoare annotation was computed. [2021-12-18 07:16:05,448 INFO L854 garLoopResultBuilder]: At program point L6052(line 6052) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1)) [2021-12-18 07:16:05,449 INFO L854 garLoopResultBuilder]: At program point L5953(lines 5948 5955) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1) (= ~ldv_state_variable_0~0 1)) [2021-12-18 07:16:05,449 INFO L861 garLoopResultBuilder]: At program point L6977(lines 6962 6983) the Hoare annotation is: true [2021-12-18 07:16:05,449 INFO L858 garLoopResultBuilder]: For program point L6185(lines 6185 6200) no Hoare annotation was computed. [2021-12-18 07:16:05,449 INFO L854 garLoopResultBuilder]: At program point L6978(line 6978) the Hoare annotation is: false [2021-12-18 07:16:05,449 INFO L858 garLoopResultBuilder]: For program point L6945-1(line 6945) no Hoare annotation was computed. [2021-12-18 07:16:05,449 INFO L854 garLoopResultBuilder]: At program point L6945(line 6945) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1)) [2021-12-18 07:16:05,450 INFO L854 garLoopResultBuilder]: At program point L6318(lines 6307 6320) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1) (= ~ldv_state_variable_0~0 1)) [2021-12-18 07:16:05,450 INFO L854 garLoopResultBuilder]: At program point L6087(line 6087) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1)) [2021-12-18 07:16:05,450 INFO L858 garLoopResultBuilder]: For program point L6087-1(line 6087) no Hoare annotation was computed. [2021-12-18 07:16:05,450 INFO L854 garLoopResultBuilder]: At program point L6153(lines 6002 6228) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1)) [2021-12-18 07:16:05,450 INFO L858 garLoopResultBuilder]: For program point L6120(line 6120) no Hoare annotation was computed. [2021-12-18 07:16:05,450 INFO L858 garLoopResultBuilder]: For program point L6946(lines 6946 6952) no Hoare annotation was computed. [2021-12-18 07:16:05,450 INFO L858 garLoopResultBuilder]: For program point L6187(lines 6187 6197) no Hoare annotation was computed. [2021-12-18 07:16:05,451 INFO L858 garLoopResultBuilder]: For program point L6220(line 6220) no Hoare annotation was computed. [2021-12-18 07:16:05,451 INFO L861 garLoopResultBuilder]: At program point L6121(line 6121) the Hoare annotation is: true [2021-12-18 07:16:05,451 INFO L858 garLoopResultBuilder]: For program point L6947-1(line 6947) no Hoare annotation was computed. [2021-12-18 07:16:05,451 INFO L854 garLoopResultBuilder]: At program point L6947(line 6947) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1)) [2021-12-18 07:16:05,451 INFO L854 garLoopResultBuilder]: At program point L7013(lines 7012 7014) the Hoare annotation is: (and (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= |ULTIMATE.start_m5632_recover_~r~0#1| 0) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res#1| 0) (= ~ldv_mutex_udev~0 2)) [2021-12-18 07:16:05,451 INFO L861 garLoopResultBuilder]: At program point L6221(line 6221) the Hoare annotation is: true [2021-12-18 07:16:05,451 INFO L858 garLoopResultBuilder]: For program point L6188(line 6188) no Hoare annotation was computed. [2021-12-18 07:16:05,452 INFO L854 garLoopResultBuilder]: At program point L5858(lines 5843 5860) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1)) [2021-12-18 07:16:05,452 INFO L858 garLoopResultBuilder]: For program point L6189(lines 6189 6193) no Hoare annotation was computed. [2021-12-18 07:16:05,452 INFO L858 garLoopResultBuilder]: For program point L6057(line 6057) no Hoare annotation was computed. [2021-12-18 07:16:05,452 INFO L854 garLoopResultBuilder]: At program point L6223(lines 6002 6228) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1)) [2021-12-18 07:16:05,452 INFO L854 garLoopResultBuilder]: At program point L6190(line 6190) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1)) [2021-12-18 07:16:05,452 INFO L861 garLoopResultBuilder]: At program point L6058(line 6058) the Hoare annotation is: true [2021-12-18 07:16:05,452 INFO L858 garLoopResultBuilder]: For program point L6190-1(line 6190) no Hoare annotation was computed. [2021-12-18 07:16:05,453 INFO L854 garLoopResultBuilder]: At program point L6950(line 6950) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1)) [2021-12-18 07:16:05,454 INFO L858 garLoopResultBuilder]: For program point L6917-1(lines 6917 6920) no Hoare annotation was computed. [2021-12-18 07:16:05,454 INFO L858 garLoopResultBuilder]: For program point L6950-1(line 6950) no Hoare annotation was computed. [2021-12-18 07:16:05,455 INFO L858 garLoopResultBuilder]: For program point L6917(lines 6917 6920) no Hoare annotation was computed. [2021-12-18 07:16:05,456 INFO L854 garLoopResultBuilder]: At program point L6918(line 6918) the Hoare annotation is: false [2021-12-18 07:16:05,456 INFO L854 garLoopResultBuilder]: At program point L6951(lines 6940 6954) the Hoare annotation is: (let ((.cse0 (= ~ldv_mutex_i_mutex_of_inode~0 1)) (.cse1 (= ~ldv_mutex_lock~0 1)) (.cse2 (= ~ldv_mutex_mutex_of_device~0 1))) (or (and (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 0) .cse0 .cse1 .cse2 (= ~ldv_mutex_udev~0 2)) (and .cse0 .cse1 .cse2 (= ~ldv_mutex_udev~0 1) (<= (+ |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 1) 0)))) [2021-12-18 07:16:05,456 INFO L854 garLoopResultBuilder]: At program point L5960(lines 5956 5962) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1)) [2021-12-18 07:16:05,456 INFO L858 garLoopResultBuilder]: For program point L6159(line 6159) no Hoare annotation was computed. [2021-12-18 07:16:05,457 INFO L858 garLoopResultBuilder]: For program point L6027(lines 6027 6222) no Hoare annotation was computed. [2021-12-18 07:16:05,457 INFO L858 garLoopResultBuilder]: For program point L6093(line 6093) no Hoare annotation was computed. [2021-12-18 07:16:05,457 INFO L854 garLoopResultBuilder]: At program point L6985(lines 6984 6986) the Hoare annotation is: (and (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= |ULTIMATE.start_m5632_recover_~r~0#1| 0) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res#1| 0) (= ~ldv_mutex_udev~0 2)) [2021-12-18 07:16:05,457 INFO L858 garLoopResultBuilder]: For program point L6127(line 6127) no Hoare annotation was computed. [2021-12-18 07:16:05,457 INFO L858 garLoopResultBuilder]: For program point L6094(lines 6094 6098) no Hoare annotation was computed. [2021-12-18 07:16:05,457 INFO L861 garLoopResultBuilder]: At program point L6160(line 6160) the Hoare annotation is: true [2021-12-18 07:16:05,457 INFO L858 garLoopResultBuilder]: For program point L6028(line 6028) no Hoare annotation was computed. [2021-12-18 07:16:05,458 INFO L854 garLoopResultBuilder]: At program point L6326(lines 6321 6328) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1)) [2021-12-18 07:16:05,458 INFO L861 garLoopResultBuilder]: At program point L6227(lines 5979 6229) the Hoare annotation is: true [2021-12-18 07:16:05,458 INFO L858 garLoopResultBuilder]: For program point L6128(lines 6128 6164) no Hoare annotation was computed. [2021-12-18 07:16:05,461 INFO L858 garLoopResultBuilder]: For program point L6029(lines 6029 6044) no Hoare annotation was computed. [2021-12-18 07:16:05,461 INFO L854 garLoopResultBuilder]: At program point L7020(lines 7019 7021) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1)) [2021-12-18 07:16:05,461 INFO L858 garLoopResultBuilder]: For program point L6195(line 6195) no Hoare annotation was computed. [2021-12-18 07:16:05,461 INFO L854 garLoopResultBuilder]: At program point L6922(lines 6914 6924) the Hoare annotation is: (and (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1) (= |ULTIMATE.start_m5632_recover_~r~0#1| 0) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res#1| 0)) [2021-12-18 07:16:05,462 INFO L854 garLoopResultBuilder]: At program point L6988(lines 6987 6989) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1) (= ~ldv_state_variable_6~0 0)) [2021-12-18 07:16:05,462 INFO L858 garLoopResultBuilder]: For program point L6130(lines 6130 6161) no Hoare annotation was computed. [2021-12-18 07:16:05,462 INFO L861 garLoopResultBuilder]: At program point L6196(line 6196) the Hoare annotation is: true [2021-12-18 07:16:05,462 INFO L858 garLoopResultBuilder]: For program point L6031(lines 6031 6041) no Hoare annotation was computed. [2021-12-18 07:16:05,462 INFO L858 garLoopResultBuilder]: For program point L6064(line 6064) no Hoare annotation was computed. [2021-12-18 07:16:05,462 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-18 07:16:05,463 INFO L854 garLoopResultBuilder]: At program point L6296(lines 6291 6298) the Hoare annotation is: (let ((.cse0 (= ~ldv_mutex_i_mutex_of_inode~0 1)) (.cse1 (= ~ldv_mutex_lock~0 1)) (.cse2 (= ~ldv_mutex_mutex_of_device~0 1))) (or (and (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 0) .cse0 .cse1 .cse2 (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res#1| 0) (= ~ldv_mutex_udev~0 2)) (and (<= (+ |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res#1| 1) 0) .cse0 .cse1 .cse2 (= ~ldv_mutex_udev~0 1) (<= (+ |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 1) 0)))) [2021-12-18 07:16:05,463 INFO L858 garLoopResultBuilder]: For program point L6131(line 6131) no Hoare annotation was computed. [2021-12-18 07:16:05,463 INFO L858 garLoopResultBuilder]: For program point L6065(lines 6065 6125) no Hoare annotation was computed. [2021-12-18 07:16:05,463 INFO L858 garLoopResultBuilder]: For program point L6032(line 6032) no Hoare annotation was computed. [2021-12-18 07:16:05,463 INFO L858 garLoopResultBuilder]: For program point L6132(lines 6132 6137) no Hoare annotation was computed. [2021-12-18 07:16:05,463 INFO L858 garLoopResultBuilder]: For program point L6033(lines 6033 6037) no Hoare annotation was computed. [2021-12-18 07:16:05,463 INFO L854 garLoopResultBuilder]: At program point L7024(lines 7023 7025) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1)) [2021-12-18 07:16:05,464 INFO L858 garLoopResultBuilder]: For program point L6166(line 6166) no Hoare annotation was computed. [2021-12-18 07:16:05,464 INFO L858 garLoopResultBuilder]: For program point L6067(lines 6067 6122) no Hoare annotation was computed. [2021-12-18 07:16:05,464 INFO L858 garLoopResultBuilder]: For program point L6100(line 6100) no Hoare annotation was computed. [2021-12-18 07:16:05,464 INFO L854 garLoopResultBuilder]: At program point L6959(lines 6955 6961) the Hoare annotation is: (and (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1) (= |ULTIMATE.start_m5632_recover_~r~0#1| 0) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res#1| 0)) [2021-12-18 07:16:05,464 INFO L854 garLoopResultBuilder]: At program point L6992(lines 6991 6993) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1)) [2021-12-18 07:16:05,464 INFO L858 garLoopResultBuilder]: For program point L6167(lines 6167 6182) no Hoare annotation was computed. [2021-12-18 07:16:05,464 INFO L858 garLoopResultBuilder]: For program point L6101(lines 6101 6108) no Hoare annotation was computed. [2021-12-18 07:16:05,464 INFO L858 garLoopResultBuilder]: For program point L6068(line 6068) no Hoare annotation was computed. [2021-12-18 07:16:05,464 INFO L854 garLoopResultBuilder]: At program point L6003(line 6003) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1) (= ~ldv_state_variable_6~0 0)) [2021-12-18 07:16:05,464 INFO L858 garLoopResultBuilder]: For program point L6003-1(line 6003) no Hoare annotation was computed. [2021-12-18 07:16:05,464 INFO L858 garLoopResultBuilder]: For program point L6069(lines 6069 6077) no Hoare annotation was computed. [2021-12-18 07:16:05,464 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-18 07:16:05,464 INFO L858 garLoopResultBuilder]: For program point L6202(line 6202) no Hoare annotation was computed. [2021-12-18 07:16:05,464 INFO L858 garLoopResultBuilder]: For program point L6103(lines 6103 6106) no Hoare annotation was computed. [2021-12-18 07:16:05,464 INFO L858 garLoopResultBuilder]: For program point L6169(lines 6169 6179) no Hoare annotation was computed. [2021-12-18 07:16:05,465 INFO L854 garLoopResultBuilder]: At program point L7028(lines 7027 7029) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1)) [2021-12-18 07:16:05,465 INFO L854 garLoopResultBuilder]: At program point L5773(lines 5768 5775) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1) (= ~ldv_state_variable_6~0 0)) [2021-12-18 07:16:05,465 INFO L858 garLoopResultBuilder]: For program point L6203(lines 6203 6218) no Hoare annotation was computed. [2021-12-18 07:16:05,465 INFO L858 garLoopResultBuilder]: For program point L6170(line 6170) no Hoare annotation was computed. [2021-12-18 07:16:05,465 INFO L858 garLoopResultBuilder]: For program point L6071(lines 6071 6075) no Hoare annotation was computed. [2021-12-18 07:16:05,466 INFO L854 garLoopResultBuilder]: At program point L6005(line 6005) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1) (= ~ldv_state_variable_6~0 0)) [2021-12-18 07:16:05,466 INFO L858 garLoopResultBuilder]: For program point L6005-1(line 6005) no Hoare annotation was computed. [2021-12-18 07:16:05,466 INFO L858 garLoopResultBuilder]: For program point L6171(lines 6171 6175) no Hoare annotation was computed. [2021-12-18 07:16:05,466 INFO L858 garLoopResultBuilder]: For program point L6039(line 6039) no Hoare annotation was computed. [2021-12-18 07:16:05,466 INFO L854 garLoopResultBuilder]: At program point L6304(lines 6299 6306) the Hoare annotation is: (and (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_udev_#res#1| 0) (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1) (= |ULTIMATE.start_m5632_recover_~r~0#1| 0) (= |ULTIMATE.start_ldv_usb_lock_device_for_reset_12_#res#1| 0)) [2021-12-18 07:16:05,466 INFO L858 garLoopResultBuilder]: For program point L6139(line 6139) no Hoare annotation was computed. [2021-12-18 07:16:05,466 INFO L858 garLoopResultBuilder]: For program point L6172-1(line 6172) no Hoare annotation was computed. [2021-12-18 07:16:05,466 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-18 07:16:05,466 INFO L858 garLoopResultBuilder]: For program point L6205(lines 6205 6215) no Hoare annotation was computed. [2021-12-18 07:16:05,466 INFO L854 garLoopResultBuilder]: At program point L6172(line 6172) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1)) [2021-12-18 07:16:05,467 INFO L854 garLoopResultBuilder]: At program point L6007(line 6007) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1) (= ~ldv_state_variable_6~0 0)) [2021-12-18 07:16:05,467 INFO L858 garLoopResultBuilder]: For program point L6007-1(line 6007) no Hoare annotation was computed. [2021-12-18 07:16:05,467 INFO L854 garLoopResultBuilder]: At program point L5974(line 5974) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1) (= ~ldv_state_variable_0~0 1)) [2021-12-18 07:16:05,467 INFO L861 garLoopResultBuilder]: At program point L6040(line 6040) the Hoare annotation is: true [2021-12-18 07:16:05,467 INFO L858 garLoopResultBuilder]: For program point L5974-1(line 5974) no Hoare annotation was computed. [2021-12-18 07:16:05,467 INFO L858 garLoopResultBuilder]: For program point L6965-1(lines 6964 6982) no Hoare annotation was computed. [2021-12-18 07:16:05,467 INFO L858 garLoopResultBuilder]: For program point L6965(lines 6965 6968) no Hoare annotation was computed. [2021-12-18 07:16:05,468 INFO L858 garLoopResultBuilder]: For program point L6206(line 6206) no Hoare annotation was computed. [2021-12-18 07:16:05,468 INFO L858 garLoopResultBuilder]: For program point L6140(lines 6140 6157) no Hoare annotation was computed. [2021-12-18 07:16:05,468 INFO L854 garLoopResultBuilder]: At program point L6966(line 6966) the Hoare annotation is: false [2021-12-18 07:16:05,468 INFO L858 garLoopResultBuilder]: For program point L6207(lines 6207 6211) no Hoare annotation was computed. [2021-12-18 07:16:05,468 INFO L854 garLoopResultBuilder]: At program point L6009(line 6009) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1) (= ~ldv_state_variable_6~0 0)) [2021-12-18 07:16:05,468 INFO L858 garLoopResultBuilder]: For program point L6009-1(line 6009) no Hoare annotation was computed. [2021-12-18 07:16:05,468 INFO L854 garLoopResultBuilder]: At program point L5976(lines 5970 5978) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1) (= ~ldv_state_variable_0~0 1)) [2021-12-18 07:16:05,469 INFO L858 garLoopResultBuilder]: For program point L6208-1(line 6208) no Hoare annotation was computed. [2021-12-18 07:16:05,469 INFO L858 garLoopResultBuilder]: For program point L6142(lines 6142 6150) no Hoare annotation was computed. [2021-12-18 07:16:05,469 INFO L854 garLoopResultBuilder]: At program point L6208(line 6208) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1)) [2021-12-18 07:16:05,469 INFO L858 garLoopResultBuilder]: For program point L6142-2(lines 6140 6156) no Hoare annotation was computed. [2021-12-18 07:16:05,469 INFO L858 garLoopResultBuilder]: For program point L6110(line 6110) no Hoare annotation was computed. [2021-12-18 07:16:05,469 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-18 07:16:05,469 INFO L854 garLoopResultBuilder]: At program point L6011(line 6011) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1) (= ~ldv_state_variable_6~0 0)) [2021-12-18 07:16:05,470 INFO L854 garLoopResultBuilder]: At program point L-1-2(line -1) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1) (= ~ldv_state_variable_6~0 0)) [2021-12-18 07:16:05,470 INFO L858 garLoopResultBuilder]: For program point L6011-1(line 6011) no Hoare annotation was computed. [2021-12-18 07:16:05,470 INFO L858 garLoopResultBuilder]: For program point L-1-3(line -1) no Hoare annotation was computed. [2021-12-18 07:16:05,470 INFO L858 garLoopResultBuilder]: For program point L6969(lines 6964 6982) no Hoare annotation was computed. [2021-12-18 07:16:05,470 INFO L858 garLoopResultBuilder]: For program point L6111(lines 6111 6118) no Hoare annotation was computed. [2021-12-18 07:16:05,470 INFO L858 garLoopResultBuilder]: For program point L6177(line 6177) no Hoare annotation was computed. [2021-12-18 07:16:05,470 INFO L854 garLoopResultBuilder]: At program point L6970(line 6970) the Hoare annotation is: false [2021-12-18 07:16:05,471 INFO L861 garLoopResultBuilder]: At program point L6178(line 6178) the Hoare annotation is: true [2021-12-18 07:16:05,471 INFO L858 garLoopResultBuilder]: For program point L6079(line 6079) no Hoare annotation was computed. [2021-12-18 07:16:05,471 INFO L858 garLoopResultBuilder]: For program point L6046(line 6046) no Hoare annotation was computed. [2021-12-18 07:16:05,472 INFO L854 garLoopResultBuilder]: At program point L6013(line 6013) the Hoare annotation is: (and (= ~ldv_mutex_i_mutex_of_inode~0 1) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_mutex_of_device~0 1) (= ~ldv_mutex_udev~0 1) (= ~ldv_state_variable_6~0 0)) [2021-12-18 07:16:05,472 INFO L858 garLoopResultBuilder]: For program point L6013-1(line 6013) no Hoare annotation was computed. [2021-12-18 07:16:05,472 INFO L854 garLoopResultBuilder]: At program point #Ultimate.meminitENTRY(line -1) the Hoare annotation is: (let ((.cse0 (= |#memory_int| |old(#memory_int)|)) (.cse1 (not (= ~ldv_mutex_udev~0 1))) (.cse2 (not (= ~ldv_mutex_mutex_of_device~0 1))) (.cse3 (not (= ~ldv_mutex_lock~0 1))) (.cse4 (not (= ~ldv_mutex_i_mutex_of_inode~0 1)))) (and (or .cse0 (not (= ~ldv_state_variable_6~0 0)) .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse2 (not (= ~ldv_state_variable_0~0 1)) .cse3 .cse4))) [2021-12-18 07:16:05,472 INFO L858 garLoopResultBuilder]: For program point #Ultimate.meminitEXIT(line -1) no Hoare annotation was computed. [2021-12-18 07:16:05,474 INFO L858 garLoopResultBuilder]: For program point #Ultimate.meminitFINAL(line -1) no Hoare annotation was computed. [2021-12-18 07:16:05,474 INFO L861 garLoopResultBuilder]: At program point always_connectedENTRY(lines 5837 5842) the Hoare annotation is: true [2021-12-18 07:16:05,474 INFO L858 garLoopResultBuilder]: For program point always_connectedFINAL(lines 5837 5842) no Hoare annotation was computed. [2021-12-18 07:16:05,474 INFO L858 garLoopResultBuilder]: For program point always_connectedEXIT(lines 5837 5842) no Hoare annotation was computed. [2021-12-18 07:16:05,474 INFO L861 garLoopResultBuilder]: At program point ldv_undef_int_negativeENTRY(lines 6336 6349) the Hoare annotation is: true [2021-12-18 07:16:05,474 INFO L858 garLoopResultBuilder]: For program point L6343-1(lines 6343 6346) no Hoare annotation was computed. [2021-12-18 07:16:05,475 INFO L858 garLoopResultBuilder]: For program point L6343(lines 6343 6346) no Hoare annotation was computed. [2021-12-18 07:16:05,475 INFO L861 garLoopResultBuilder]: At program point L6344(line 6344) the Hoare annotation is: true [2021-12-18 07:16:05,476 INFO L858 garLoopResultBuilder]: For program point ldv_undef_int_negativeFINAL(lines 6336 6349) no Hoare annotation was computed. [2021-12-18 07:16:05,476 INFO L858 garLoopResultBuilder]: For program point L6341-1(line 6341) no Hoare annotation was computed. [2021-12-18 07:16:05,476 INFO L858 garLoopResultBuilder]: For program point ldv_undef_int_negativeEXIT(lines 6336 6349) no Hoare annotation was computed. [2021-12-18 07:16:05,476 INFO L861 garLoopResultBuilder]: At program point L6341(line 6341) the Hoare annotation is: true [2021-12-18 07:16:05,479 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 07:16:05,480 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-18 07:16:05,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 07:16:05 BoogieIcfgContainer [2021-12-18 07:16:05,500 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-18 07:16:05,500 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-18 07:16:05,500 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-18 07:16:05,501 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-18 07:16:05,501 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 07:15:56" (3/4) ... [2021-12-18 07:16:05,503 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-18 07:16:05,509 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure usbnet_disconnect [2021-12-18 07:16:05,510 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2021-12-18 07:16:05,510 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_mutex_lock_udev [2021-12-18 07:16:05,510 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_stop [2021-12-18 07:16:05,510 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_init_zalloc [2021-12-18 07:16:05,510 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2021-12-18 07:16:05,510 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_undef_int [2021-12-18 07:16:05,511 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.meminit [2021-12-18 07:16:05,511 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure always_connected [2021-12-18 07:16:05,511 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_undef_int_negative [2021-12-18 07:16:05,527 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 60 nodes and edges [2021-12-18 07:16:05,528 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2021-12-18 07:16:05,530 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-18 07:16:05,531 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-18 07:16:05,532 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-18 07:16:05,559 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 0 && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && ldv_mutex_udev == 1) && r == 0) && \result == 0 [2021-12-18 07:16:05,559 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 0 && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && ldv_mutex_udev == 1) && r == 0) && \result == 0 [2021-12-18 07:16:05,559 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == 0 && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && ldv_mutex_udev == 2) || ((((ldv_mutex_i_mutex_of_inode == 1 && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && ldv_mutex_udev == 1) && \result + 1 <= 0) [2021-12-18 07:16:05,559 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 0 && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && ldv_mutex_udev == 1) && r == 0) && \result == 0 [2021-12-18 07:16:05,560 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 0 && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && \result == 0) && ldv_mutex_udev == 2) || (((((\result + 1 <= 0 && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && ldv_mutex_udev == 1) && \result + 1 <= 0) [2021-12-18 07:16:05,561 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 0 && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && r == 0) && \result == 0) && ldv_mutex_udev == 2 [2021-12-18 07:16:05,561 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 0 && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && r == 0) && \result == 0) && ldv_mutex_udev == 2 [2021-12-18 07:16:05,832 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-18 07:16:05,833 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-18 07:16:05,833 INFO L158 Benchmark]: Toolchain (without parser) took 11716.83ms. Allocated memory was 92.3MB in the beginning and 350.2MB in the end (delta: 257.9MB). Free memory was 53.5MB in the beginning and 166.3MB in the end (delta: -112.8MB). Peak memory consumption was 227.9MB. Max. memory is 16.1GB. [2021-12-18 07:16:05,834 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 92.3MB. Free memory was 49.7MB in the beginning and 49.6MB in the end (delta: 39.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-18 07:16:05,834 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1182.35ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 53.2MB in the beginning and 54.5MB in the end (delta: -1.4MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. [2021-12-18 07:16:05,834 INFO L158 Benchmark]: Boogie Procedure Inliner took 153.16ms. Allocated memory is still 123.7MB. Free memory was 54.5MB in the beginning and 75.0MB in the end (delta: -20.4MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2021-12-18 07:16:05,834 INFO L158 Benchmark]: Boogie Preprocessor took 70.37ms. Allocated memory is still 123.7MB. Free memory was 75.0MB in the beginning and 66.1MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-18 07:16:05,835 INFO L158 Benchmark]: RCFGBuilder took 1128.01ms. Allocated memory was 123.7MB in the beginning and 228.6MB in the end (delta: 104.9MB). Free memory was 66.1MB in the beginning and 125.5MB in the end (delta: -59.4MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. [2021-12-18 07:16:05,835 INFO L158 Benchmark]: TraceAbstraction took 8843.82ms. Allocated memory was 228.6MB in the beginning and 350.2MB in the end (delta: 121.6MB). Free memory was 125.5MB in the beginning and 117.4MB in the end (delta: 8.1MB). Peak memory consumption was 163.3MB. Max. memory is 16.1GB. [2021-12-18 07:16:05,835 INFO L158 Benchmark]: Witness Printer took 332.52ms. Allocated memory is still 350.2MB. Free memory was 117.4MB in the beginning and 166.3MB in the end (delta: -48.9MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2021-12-18 07:16:05,837 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 92.3MB. Free memory was 49.7MB in the beginning and 49.6MB in the end (delta: 39.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1182.35ms. Allocated memory was 92.3MB in the beginning and 123.7MB in the end (delta: 31.5MB). Free memory was 53.2MB in the beginning and 54.5MB in the end (delta: -1.4MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 153.16ms. Allocated memory is still 123.7MB. Free memory was 54.5MB in the beginning and 75.0MB in the end (delta: -20.4MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.37ms. Allocated memory is still 123.7MB. Free memory was 75.0MB in the beginning and 66.1MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1128.01ms. Allocated memory was 123.7MB in the beginning and 228.6MB in the end (delta: 104.9MB). Free memory was 66.1MB in the beginning and 125.5MB in the end (delta: -59.4MB). Peak memory consumption was 48.6MB. Max. memory is 16.1GB. * TraceAbstraction took 8843.82ms. Allocated memory was 228.6MB in the beginning and 350.2MB in the end (delta: 121.6MB). Free memory was 125.5MB in the beginning and 117.4MB in the end (delta: 8.1MB). Peak memory consumption was 163.3MB. Max. memory is 16.1GB. * Witness Printer took 332.52ms. Allocated memory is still 350.2MB. Free memory was 117.4MB in the beginning and 166.3MB in the end (delta: -48.9MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 6333]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 187 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.8s, OverallIterations: 10, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2427 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2348 mSDsluCounter, 10006 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7121 mSDsCounter, 519 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 903 IncrementalHoareTripleChecker+Invalid, 1422 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 519 mSolverCounterUnsat, 2885 mSDtfsCounter, 903 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 505 GetRequests, 441 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=880occurred in iteration=7, InterpolantAutomatonStates: 70, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 660 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 70 LocationsWithAnnotation, 567 PreInvPairs, 725 NumberOfFragments, 882 HoareAnnotationTreeSize, 567 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 70 FomulaSimplificationsInter, 7371 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 1401 NumberOfCodeBlocks, 1401 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1391 ConstructedInterpolants, 0 QuantifiedInterpolants, 2506 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 2713/2713 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 7008]: Loop Invariant Derived loop invariant: (((ldv_mutex_i_mutex_of_inode == 1 && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && ldv_mutex_udev == 1) && ldv_state_variable_0 == 1 - InvariantResult [Line: 7019]: Loop Invariant Derived loop invariant: ((ldv_mutex_i_mutex_of_inode == 1 && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 7027]: Loop Invariant Derived loop invariant: ((ldv_mutex_i_mutex_of_inode == 1 && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 5970]: Loop Invariant Derived loop invariant: (((ldv_mutex_i_mutex_of_inode == 1 && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && ldv_mutex_udev == 1) && ldv_state_variable_0 == 1 - InvariantResult [Line: 6914]: Loop Invariant Derived loop invariant: (((((\result == 0 && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && ldv_mutex_udev == 1) && r == 0) && \result == 0 - InvariantResult [Line: 6299]: Loop Invariant Derived loop invariant: (((((\result == 0 && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && ldv_mutex_udev == 1) && r == 0) && \result == 0 - InvariantResult [Line: 6955]: Loop Invariant Derived loop invariant: (((((\result == 0 && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && ldv_mutex_udev == 1) && r == 0) && \result == 0 - InvariantResult [Line: 5956]: Loop Invariant Derived loop invariant: ((ldv_mutex_i_mutex_of_inode == 1 && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 6987]: Loop Invariant Derived loop invariant: (((ldv_mutex_i_mutex_of_inode == 1 && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && ldv_mutex_udev == 1) && ldv_state_variable_6 == 0 - InvariantResult [Line: 6002]: Loop Invariant Derived loop invariant: ((ldv_mutex_i_mutex_of_inode == 1 && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 5979]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5792]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6940]: Loop Invariant Derived loop invariant: ((((\result == 0 && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && ldv_mutex_udev == 2) || ((((ldv_mutex_i_mutex_of_inode == 1 && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && ldv_mutex_udev == 1) && \result + 1 <= 0) - InvariantResult [Line: 6984]: Loop Invariant Derived loop invariant: (((((\result == 0 && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && r == 0) && \result == 0) && ldv_mutex_udev == 2 - InvariantResult [Line: 7023]: Loop Invariant Derived loop invariant: ((ldv_mutex_i_mutex_of_inode == 1 && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 7004]: Loop Invariant Derived loop invariant: ((ldv_mutex_i_mutex_of_inode == 1 && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 5843]: Loop Invariant Derived loop invariant: ((ldv_mutex_i_mutex_of_inode == 1 && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 6002]: Loop Invariant Derived loop invariant: ((ldv_mutex_i_mutex_of_inode == 1 && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 6321]: Loop Invariant Derived loop invariant: ((ldv_mutex_i_mutex_of_inode == 1 && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 5768]: Loop Invariant Derived loop invariant: (((ldv_mutex_i_mutex_of_inode == 1 && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && ldv_mutex_udev == 1) && ldv_state_variable_6 == 0 - InvariantResult [Line: 6962]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 6307]: Loop Invariant Derived loop invariant: (((ldv_mutex_i_mutex_of_inode == 1 && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && ldv_mutex_udev == 1) && ldv_state_variable_0 == 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: (((ldv_mutex_i_mutex_of_inode == 1 && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && ldv_mutex_udev == 1) && ldv_state_variable_6 == 0 - InvariantResult [Line: 6291]: Loop Invariant Derived loop invariant: (((((\result == 0 && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && \result == 0) && ldv_mutex_udev == 2) || (((((\result + 1 <= 0 && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && ldv_mutex_udev == 1) && \result + 1 <= 0) - InvariantResult [Line: 6991]: Loop Invariant Derived loop invariant: ((ldv_mutex_i_mutex_of_inode == 1 && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && ldv_mutex_udev == 1 - InvariantResult [Line: 7012]: Loop Invariant Derived loop invariant: (((((\result == 0 && ldv_mutex_i_mutex_of_inode == 1) && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && r == 0) && \result == 0) && ldv_mutex_udev == 2 - InvariantResult [Line: 5948]: Loop Invariant Derived loop invariant: (((ldv_mutex_i_mutex_of_inode == 1 && ldv_mutex_lock == 1) && ldv_mutex_mutex_of_device == 1) && ldv_mutex_udev == 1) && ldv_state_variable_0 == 1 RESULT: Ultimate proved your program to be correct! [2021-12-18 07:16:05,892 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE