./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.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 006aa960ed1622b337a2cda4a1ad6a685b212b2d57c6c6998da1e861381a253d --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 23:37:37,787 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 23:37:37,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 23:37:37,826 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 23:37:37,830 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 23:37:37,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 23:37:37,835 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 23:37:37,838 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 23:37:37,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 23:37:37,845 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 23:37:37,845 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 23:37:37,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 23:37:37,848 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 23:37:37,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 23:37:37,851 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 23:37:37,853 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 23:37:37,854 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 23:37:37,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 23:37:37,859 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 23:37:37,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 23:37:37,865 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 23:37:37,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 23:37:37,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 23:37:37,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 23:37:37,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 23:37:37,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 23:37:37,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 23:37:37,874 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 23:37:37,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 23:37:37,875 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 23:37:37,876 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 23:37:37,877 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 23:37:37,878 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 23:37:37,879 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 23:37:37,879 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 23:37:37,880 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 23:37:37,880 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 23:37:37,881 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 23:37:37,881 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 23:37:37,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 23:37:37,882 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 23:37:37,884 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 23:37:37,884 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-22 23:37:37,919 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 23:37:37,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 23:37:37,920 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 23:37:37,920 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 23:37:37,921 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 23:37:37,921 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 23:37:37,922 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 23:37:37,922 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 23:37:37,922 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 23:37:37,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 23:37:37,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 23:37:37,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 23:37:37,923 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 23:37:37,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 23:37:37,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 23:37:37,924 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 23:37:37,924 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 23:37:37,924 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 23:37:37,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 23:37:37,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 23:37:37,925 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 23:37:37,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 23:37:37,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 23:37:37,925 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 23:37:37,926 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 23:37:37,926 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 23:37:37,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 23:37:37,926 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 23:37:37,926 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 23:37:37,926 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 23:37:37,927 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 006aa960ed1622b337a2cda4a1ad6a685b212b2d57c6c6998da1e861381a253d [2022-07-22 23:37:38,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 23:37:38,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 23:37:38,138 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 23:37:38,139 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 23:37:38,140 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 23:37:38,140 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2022-07-22 23:37:38,204 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d15cb909f/2cc37550822d44c098efcb3bb0ee4801/FLAGfbddbb76a [2022-07-22 23:37:38,914 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 23:37:38,915 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2022-07-22 23:37:38,963 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d15cb909f/2cc37550822d44c098efcb3bb0ee4801/FLAGfbddbb76a [2022-07-22 23:37:38,985 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d15cb909f/2cc37550822d44c098efcb3bb0ee4801 [2022-07-22 23:37:38,987 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 23:37:38,989 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 23:37:38,990 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 23:37:38,990 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 23:37:38,993 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 23:37:38,994 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:37:38" (1/1) ... [2022-07-22 23:37:38,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@478fed42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:37:38, skipping insertion in model container [2022-07-22 23:37:38,996 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:37:38" (1/1) ... [2022-07-22 23:37:39,002 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 23:37:39,112 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 23:37:40,193 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i[171620,171633] [2022-07-22 23:37:41,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 23:37:41,201 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 23:37:41,315 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i[171620,171633] [2022-07-22 23:37:41,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 23:37:41,771 INFO L208 MainTranslator]: Completed translation [2022-07-22 23:37:41,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:37:41 WrapperNode [2022-07-22 23:37:41,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 23:37:41,775 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 23:37:41,775 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 23:37:41,775 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 23:37:41,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:37:41" (1/1) ... [2022-07-22 23:37:41,869 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:37:41" (1/1) ... [2022-07-22 23:37:42,101 INFO L137 Inliner]: procedures = 318, calls = 3918, calls flagged for inlining = 135, calls inlined = 109, statements flattened = 6384 [2022-07-22 23:37:42,102 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 23:37:42,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 23:37:42,103 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 23:37:42,103 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 23:37:42,110 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:37:41" (1/1) ... [2022-07-22 23:37:42,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:37:41" (1/1) ... [2022-07-22 23:37:42,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:37:41" (1/1) ... [2022-07-22 23:37:42,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:37:41" (1/1) ... [2022-07-22 23:37:42,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:37:41" (1/1) ... [2022-07-22 23:37:42,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:37:41" (1/1) ... [2022-07-22 23:37:42,315 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:37:41" (1/1) ... [2022-07-22 23:37:42,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 23:37:42,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 23:37:42,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 23:37:42,351 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 23:37:42,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:37:41" (1/1) ... [2022-07-22 23:37:42,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 23:37:42,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:37:42,385 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 23:37:42,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 23:37:42,422 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_schedule_event [2022-07-22 23:37:42,423 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_schedule_event [2022-07-22 23:37:42,423 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2022-07-22 23:37:42,423 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2022-07-22 23:37:42,423 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freebcshw [2022-07-22 23:37:42,423 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freebcshw [2022-07-22 23:37:42,423 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_modem_ctrl [2022-07-22 23:37:42,423 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_modem_ctrl [2022-07-22 23:37:42,424 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_reinitbcshw [2022-07-22 23:37:42,424 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_reinitbcshw [2022-07-22 23:37:42,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-22 23:37:42,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-22 23:37:42,424 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_brkchars [2022-07-22 23:37:42,424 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_brkchars [2022-07-22 23:37:42,424 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-07-22 23:37:42,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-07-22 23:37:42,425 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_add_event [2022-07-22 23:37:42,425 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_add_event [2022-07-22 23:37:42,425 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-22 23:37:42,425 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-22 23:37:42,425 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_control_urb [2022-07-22 23:37:42,425 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_control_urb [2022-07-22 23:37:42,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-22 23:37:42,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-22 23:37:42,426 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-07-22 23:37:42,426 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-07-22 23:37:42,426 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_close_bchannel [2022-07-22 23:37:42,426 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_close_bchannel [2022-07-22 23:37:42,426 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_resume [2022-07-22 23:37:42,427 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_resume [2022-07-22 23:37:42,427 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_baud_rate [2022-07-22 23:37:42,427 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_baud_rate [2022-07-22 23:37:42,427 INFO L130 BoogieDeclarations]: Found specification of procedure freeurbs [2022-07-22 23:37:42,427 INFO L138 BoogieDeclarations]: Found implementation of procedure freeurbs [2022-07-22 23:37:42,427 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_bchannel_down [2022-07-22 23:37:42,427 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_bchannel_down [2022-07-22 23:37:42,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-22 23:37:42,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-22 23:37:42,428 INFO L130 BoogieDeclarations]: Found specification of procedure start_cbsend [2022-07-22 23:37:42,428 INFO L138 BoogieDeclarations]: Found implementation of procedure start_cbsend [2022-07-22 23:37:42,429 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-22 23:37:42,429 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-22 23:37:42,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-22 23:37:42,429 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-22 23:37:42,429 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_dbg_buffer [2022-07-22 23:37:42,430 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_dbg_buffer [2022-07-22 23:37:42,430 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-22 23:37:42,430 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-22 23:37:42,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_43 [2022-07-22 23:37:42,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_43 [2022-07-22 23:37:42,430 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-07-22 23:37:42,431 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-07-22 23:37:42,431 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_set_line_ctrl [2022-07-22 23:37:42,431 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_set_line_ctrl [2022-07-22 23:37:42,431 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2022-07-22 23:37:42,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2022-07-22 23:37:42,432 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_kill [2022-07-22 23:37:42,432 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_kill [2022-07-22 23:37:42,433 INFO L130 BoogieDeclarations]: Found specification of procedure usb_queue_reset_device [2022-07-22 23:37:42,433 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_queue_reset_device [2022-07-22 23:37:42,433 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-22 23:37:42,433 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-22 23:37:42,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_22 [2022-07-22 23:37:42,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_22 [2022-07-22 23:37:42,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_2 [2022-07-22 23:37:42,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_2 [2022-07-22 23:37:42,434 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_write_room [2022-07-22 23:37:42,434 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_write_room [2022-07-22 23:37:42,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2022-07-22 23:37:42,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2022-07-22 23:37:42,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_20 [2022-07-22 23:37:42,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_20 [2022-07-22 23:37:42,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_4 [2022-07-22 23:37:42,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_4 [2022-07-22 23:37:42,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_3 [2022-07-22 23:37:42,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_3 [2022-07-22 23:37:42,436 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 23:37:42,436 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2022-07-22 23:37:42,436 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2022-07-22 23:37:42,436 INFO L130 BoogieDeclarations]: Found specification of procedure check_pending [2022-07-22 23:37:42,437 INFO L138 BoogieDeclarations]: Found implementation of procedure check_pending [2022-07-22 23:37:42,437 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2022-07-22 23:37:42,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 23:37:42,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_11 [2022-07-22 23:37:42,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_11 [2022-07-22 23:37:42,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2022-07-22 23:37:42,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2022-07-22 23:37:42,437 INFO L130 BoogieDeclarations]: Found specification of procedure error_hangup [2022-07-22 23:37:42,438 INFO L138 BoogieDeclarations]: Found implementation of procedure error_hangup [2022-07-22 23:37:42,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_18 [2022-07-22 23:37:42,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_18 [2022-07-22 23:37:42,439 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freedriver [2022-07-22 23:37:42,439 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freedriver [2022-07-22 23:37:42,439 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_send_skb [2022-07-22 23:37:42,439 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_send_skb [2022-07-22 23:37:42,439 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_chars_in_buffer [2022-07-22 23:37:42,440 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_chars_in_buffer [2022-07-22 23:37:42,440 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-22 23:37:42,440 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-22 23:37:42,440 INFO L130 BoogieDeclarations]: Found specification of procedure req_submit [2022-07-22 23:37:42,442 INFO L138 BoogieDeclarations]: Found implementation of procedure req_submit [2022-07-22 23:37:42,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 23:37:42,442 INFO L130 BoogieDeclarations]: Found specification of procedure read_int_callback [2022-07-22 23:37:42,442 INFO L138 BoogieDeclarations]: Found implementation of procedure read_int_callback [2022-07-22 23:37:42,442 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_add [2022-07-22 23:37:42,442 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_add [2022-07-22 23:37:42,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-22 23:37:42,443 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_init [2022-07-22 23:37:42,443 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_init [2022-07-22 23:37:42,443 INFO L130 BoogieDeclarations]: Found specification of procedure get_usb_statmsg [2022-07-22 23:37:42,443 INFO L138 BoogieDeclarations]: Found implementation of procedure get_usb_statmsg [2022-07-22 23:37:42,443 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2022-07-22 23:37:42,444 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2022-07-22 23:37:42,444 INFO L130 BoogieDeclarations]: Found specification of procedure read_ctrl_callback [2022-07-22 23:37:42,444 INFO L138 BoogieDeclarations]: Found implementation of procedure read_ctrl_callback [2022-07-22 23:37:42,444 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-22 23:37:42,444 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-22 23:37:42,445 INFO L130 BoogieDeclarations]: Found specification of procedure complete_cb [2022-07-22 23:37:42,445 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_cb [2022-07-22 23:37:42,447 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-22 23:37:42,447 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-22 23:37:42,447 INFO L130 BoogieDeclarations]: Found specification of procedure stopurbs [2022-07-22 23:37:42,447 INFO L138 BoogieDeclarations]: Found implementation of procedure stopurbs [2022-07-22 23:37:42,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-22 23:37:42,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-22 23:37:42,449 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecshw [2022-07-22 23:37:42,450 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecshw [2022-07-22 23:37:42,450 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-22 23:37:42,455 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-22 23:37:42,455 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_4 [2022-07-22 23:37:42,455 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_4 [2022-07-22 23:37:42,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_7 [2022-07-22 23:37:42,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_7 [2022-07-22 23:37:42,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_5 [2022-07-22 23:37:42,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_5 [2022-07-22 23:37:42,456 INFO L130 BoogieDeclarations]: Found specification of procedure int_in_work [2022-07-22 23:37:42,456 INFO L138 BoogieDeclarations]: Found implementation of procedure int_in_work [2022-07-22 23:37:42,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 23:37:42,456 INFO L130 BoogieDeclarations]: Found specification of procedure dump_urb [2022-07-22 23:37:42,456 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_urb [2022-07-22 23:37:42,456 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-07-22 23:37:42,456 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-07-22 23:37:42,456 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-22 23:37:42,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-22 23:37:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure atwrite_submit [2022-07-22 23:37:42,457 INFO L138 BoogieDeclarations]: Found implementation of procedure atwrite_submit [2022-07-22 23:37:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-07-22 23:37:42,457 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-07-22 23:37:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_4 [2022-07-22 23:37:42,457 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_4 [2022-07-22 23:37:42,457 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_hi_schedule [2022-07-22 23:37:42,458 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_hi_schedule [2022-07-22 23:37:42,458 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initcshw [2022-07-22 23:37:42,458 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initcshw [2022-07-22 23:37:42,458 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-22 23:37:42,458 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-22 23:37:42,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 23:37:42,458 INFO L130 BoogieDeclarations]: Found specification of procedure get_usb_rcmsg [2022-07-22 23:37:42,458 INFO L138 BoogieDeclarations]: Found implementation of procedure get_usb_rcmsg [2022-07-22 23:37:42,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-22 23:37:42,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-22 23:37:42,459 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_initbcshw [2022-07-22 23:37:42,459 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_initbcshw [2022-07-22 23:37:42,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 23:37:42,459 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-22 23:37:42,459 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-22 23:37:42,459 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_4 [2022-07-22 23:37:42,460 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_4 [2022-07-22 23:37:42,460 INFO L130 BoogieDeclarations]: Found specification of procedure error_reset [2022-07-22 23:37:42,460 INFO L138 BoogieDeclarations]: Found implementation of procedure error_reset [2022-07-22 23:37:42,460 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_freecs [2022-07-22 23:37:42,460 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_freecs [2022-07-22 23:37:42,460 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_isoc_input [2022-07-22 23:37:42,461 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_isoc_input [2022-07-22 23:37:42,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 23:37:42,461 INFO L130 BoogieDeclarations]: Found specification of procedure write_command_callback [2022-07-22 23:37:42,461 INFO L138 BoogieDeclarations]: Found implementation of procedure write_command_callback [2022-07-22 23:37:42,461 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_suspend [2022-07-22 23:37:42,461 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_suspend [2022-07-22 23:37:42,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-22 23:37:42,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-22 23:37:42,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 23:37:42,462 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-22 23:37:42,462 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-22 23:37:42,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-22 23:37:42,462 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_4 [2022-07-22 23:37:42,462 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_4 [2022-07-22 23:37:42,462 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2022-07-22 23:37:42,463 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2022-07-22 23:37:42,463 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-07-22 23:37:42,463 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-07-22 23:37:42,463 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-22 23:37:42,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-22 23:37:42,463 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_disconnect [2022-07-22 23:37:42,463 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_disconnect [2022-07-22 23:37:42,463 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-22 23:37:42,463 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-22 23:37:42,464 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-07-22 23:37:42,464 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-07-22 23:37:42,464 INFO L130 BoogieDeclarations]: Found specification of procedure update_basstate [2022-07-22 23:37:42,464 INFO L138 BoogieDeclarations]: Found implementation of procedure update_basstate [2022-07-22 23:37:42,464 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2022-07-22 23:37:42,464 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2022-07-22 23:37:42,464 INFO L130 BoogieDeclarations]: Found specification of procedure write_ctrl_callback [2022-07-22 23:37:42,464 INFO L138 BoogieDeclarations]: Found implementation of procedure write_ctrl_callback [2022-07-22 23:37:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure read_iso_callback [2022-07-22 23:37:42,465 INFO L138 BoogieDeclarations]: Found implementation of procedure read_iso_callback [2022-07-22 23:37:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_41 [2022-07-22 23:37:42,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_41 [2022-07-22 23:37:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-07-22 23:37:42,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-07-22 23:37:42,465 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2022-07-22 23:37:42,465 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2022-07-22 23:37:42,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 23:37:42,466 INFO L130 BoogieDeclarations]: Found specification of procedure atread_submit [2022-07-22 23:37:42,466 INFO L138 BoogieDeclarations]: Found implementation of procedure atread_submit [2022-07-22 23:37:42,466 INFO L130 BoogieDeclarations]: Found specification of procedure gigaset_init_bchannel [2022-07-22 23:37:42,466 INFO L138 BoogieDeclarations]: Found implementation of procedure gigaset_init_bchannel [2022-07-22 23:37:42,466 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2022-07-22 23:37:42,466 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2022-07-22 23:37:42,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 23:37:42,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 23:37:43,226 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 23:37:43,230 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 23:37:43,506 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-22 23:37:44,378 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2022-07-22 23:37:48,094 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 23:37:48,118 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 23:37:48,118 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 23:37:48,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:37:48 BoogieIcfgContainer [2022-07-22 23:37:48,123 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 23:37:48,125 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 23:37:48,125 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 23:37:48,128 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 23:37:48,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 11:37:38" (1/3) ... [2022-07-22 23:37:48,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a828ead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:37:48, skipping insertion in model container [2022-07-22 23:37:48,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:37:41" (2/3) ... [2022-07-22 23:37:48,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a828ead and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:37:48, skipping insertion in model container [2022-07-22 23:37:48,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:37:48" (3/3) ... [2022-07-22 23:37:48,131 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--isdn--gigaset--bas_gigaset.ko-entry_point.cil.out.i [2022-07-22 23:37:48,146 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 23:37:48,147 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 23:37:48,257 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 23:37:48,265 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@384f4794, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6d43f3c3 [2022-07-22 23:37:48,265 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 23:37:48,277 INFO L276 IsEmpty]: Start isEmpty. Operand has 2085 states, 1440 states have (on average 1.3743055555555554) internal successors, (1979), 1515 states have internal predecessors, (1979), 541 states have call successors, (541), 104 states have call predecessors, (541), 102 states have return successors, (531), 502 states have call predecessors, (531), 531 states have call successors, (531) [2022-07-22 23:37:48,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-07-22 23:37:48,309 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:37:48,310 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:37:48,310 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:37:48,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:37:48,317 INFO L85 PathProgramCache]: Analyzing trace with hash -670781513, now seen corresponding path program 1 times [2022-07-22 23:37:48,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:37:48,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068298699] [2022-07-22 23:37:48,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:37:48,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:37:48,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:37:49,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:37:49,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:37:49,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:37:49,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:37:49,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:37:49,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:37:49,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:37:49,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:37:49,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:37:49,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:37:49,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:37:49,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:37:49,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 23:37:49,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:37:49,119 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-22 23:37:49,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:37:49,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068298699] [2022-07-22 23:37:49,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068298699] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:37:49,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:37:49,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-22 23:37:49,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46244973] [2022-07-22 23:37:49,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:37:49,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-22 23:37:49,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:37:49,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-22 23:37:49,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-22 23:37:49,154 INFO L87 Difference]: Start difference. First operand has 2085 states, 1440 states have (on average 1.3743055555555554) internal successors, (1979), 1515 states have internal predecessors, (1979), 541 states have call successors, (541), 104 states have call predecessors, (541), 102 states have return successors, (531), 502 states have call predecessors, (531), 531 states have call successors, (531) Second operand has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-22 23:38:06,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:38:06,042 INFO L93 Difference]: Finished difference Result 9256 states and 14100 transitions. [2022-07-22 23:38:06,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-22 23:38:06,046 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 66 [2022-07-22 23:38:06,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:38:06,126 INFO L225 Difference]: With dead ends: 9256 [2022-07-22 23:38:06,127 INFO L226 Difference]: Without dead ends: 7134 [2022-07-22 23:38:06,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2022-07-22 23:38:06,163 INFO L413 NwaCegarLoop]: 3493 mSDtfsCounter, 11304 mSDsluCounter, 10816 mSDsCounter, 0 mSdLazyCounter, 13578 mSolverCounterSat, 6151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11950 SdHoareTripleChecker+Valid, 14309 SdHoareTripleChecker+Invalid, 19729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6151 IncrementalHoareTripleChecker+Valid, 13578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.1s IncrementalHoareTripleChecker+Time [2022-07-22 23:38:06,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11950 Valid, 14309 Invalid, 19729 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6151 Valid, 13578 Invalid, 0 Unknown, 0 Unchecked, 16.1s Time] [2022-07-22 23:38:06,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7134 states. [2022-07-22 23:38:06,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7134 to 6003. [2022-07-22 23:38:06,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6003 states, 4161 states have (on average 1.3703436673876472) internal successors, (5702), 4340 states have internal predecessors, (5702), 1541 states have call successors, (1541), 301 states have call predecessors, (1541), 300 states have return successors, (1536), 1449 states have call predecessors, (1536), 1536 states have call successors, (1536) [2022-07-22 23:38:06,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6003 states to 6003 states and 8779 transitions. [2022-07-22 23:38:06,608 INFO L78 Accepts]: Start accepts. Automaton has 6003 states and 8779 transitions. Word has length 66 [2022-07-22 23:38:06,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:38:06,610 INFO L495 AbstractCegarLoop]: Abstraction has 6003 states and 8779 transitions. [2022-07-22 23:38:06,610 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 7 states have internal predecessors, (39), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-07-22 23:38:06,610 INFO L276 IsEmpty]: Start isEmpty. Operand 6003 states and 8779 transitions. [2022-07-22 23:38:06,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-22 23:38:06,618 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:38:06,618 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:38:06,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 23:38:06,619 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:38:06,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:38:06,620 INFO L85 PathProgramCache]: Analyzing trace with hash -174989572, now seen corresponding path program 1 times [2022-07-22 23:38:06,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:38:06,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671934655] [2022-07-22 23:38:06,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:38:06,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:38:06,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:07,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:38:07,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:07,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:38:07,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:07,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:38:07,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:07,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:38:07,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:07,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:38:07,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:07,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:38:07,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:07,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 23:38:07,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:07,124 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-22 23:38:07,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:38:07,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671934655] [2022-07-22 23:38:07,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671934655] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:38:07,125 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:38:07,125 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 23:38:07,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39583766] [2022-07-22 23:38:07,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:38:07,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 23:38:07,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:38:07,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 23:38:07,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-22 23:38:07,127 INFO L87 Difference]: Start difference. First operand 6003 states and 8779 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-22 23:38:19,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:38:19,579 INFO L93 Difference]: Finished difference Result 22292 states and 34407 transitions. [2022-07-22 23:38:19,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 23:38:19,579 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 69 [2022-07-22 23:38:19,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:38:19,692 INFO L225 Difference]: With dead ends: 22292 [2022-07-22 23:38:19,692 INFO L226 Difference]: Without dead ends: 16315 [2022-07-22 23:38:19,733 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-22 23:38:19,738 INFO L413 NwaCegarLoop]: 3206 mSDtfsCounter, 7318 mSDsluCounter, 5643 mSDsCounter, 0 mSdLazyCounter, 6415 mSolverCounterSat, 4782 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7713 SdHoareTripleChecker+Valid, 8849 SdHoareTripleChecker+Invalid, 11197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4782 IncrementalHoareTripleChecker+Valid, 6415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2022-07-22 23:38:19,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7713 Valid, 8849 Invalid, 11197 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4782 Valid, 6415 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time] [2022-07-22 23:38:19,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16315 states. [2022-07-22 23:38:20,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16315 to 13400. [2022-07-22 23:38:20,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13400 states, 9271 states have (on average 1.358753101067846) internal successors, (12597), 9673 states have internal predecessors, (12597), 3367 states have call successors, (3367), 600 states have call predecessors, (3367), 761 states have return successors, (4245), 3329 states have call predecessors, (4245), 3362 states have call successors, (4245) [2022-07-22 23:38:20,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13400 states to 13400 states and 20209 transitions. [2022-07-22 23:38:20,517 INFO L78 Accepts]: Start accepts. Automaton has 13400 states and 20209 transitions. Word has length 69 [2022-07-22 23:38:20,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:38:20,518 INFO L495 AbstractCegarLoop]: Abstraction has 13400 states and 20209 transitions. [2022-07-22 23:38:20,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-22 23:38:20,519 INFO L276 IsEmpty]: Start isEmpty. Operand 13400 states and 20209 transitions. [2022-07-22 23:38:20,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-07-22 23:38:20,522 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:38:20,522 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:38:20,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 23:38:20,523 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:38:20,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:38:20,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1130675884, now seen corresponding path program 1 times [2022-07-22 23:38:20,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:38:20,524 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796036692] [2022-07-22 23:38:20,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:38:20,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:38:20,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:21,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:38:21,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:21,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:38:21,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:21,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:38:21,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:21,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:38:21,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:21,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:38:21,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:21,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:38:21,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:21,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 23:38:21,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:21,152 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-22 23:38:21,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:38:21,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796036692] [2022-07-22 23:38:21,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796036692] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:38:21,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:38:21,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 23:38:21,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123505972] [2022-07-22 23:38:21,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:38:21,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 23:38:21,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:38:21,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 23:38:21,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-22 23:38:21,156 INFO L87 Difference]: Start difference. First operand 13400 states and 20209 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-22 23:38:32,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:38:32,287 INFO L93 Difference]: Finished difference Result 45943 states and 72646 transitions. [2022-07-22 23:38:32,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 23:38:32,288 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 70 [2022-07-22 23:38:32,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:38:32,521 INFO L225 Difference]: With dead ends: 45943 [2022-07-22 23:38:32,522 INFO L226 Difference]: Without dead ends: 32569 [2022-07-22 23:38:32,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-22 23:38:32,618 INFO L413 NwaCegarLoop]: 3274 mSDtfsCounter, 7247 mSDsluCounter, 5608 mSDsCounter, 0 mSdLazyCounter, 6475 mSolverCounterSat, 4701 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7651 SdHoareTripleChecker+Valid, 8882 SdHoareTripleChecker+Invalid, 11176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4701 IncrementalHoareTripleChecker+Valid, 6475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2022-07-22 23:38:32,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7651 Valid, 8882 Invalid, 11176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4701 Valid, 6475 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2022-07-22 23:38:32,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32569 states. [2022-07-22 23:38:34,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32569 to 28183. [2022-07-22 23:38:34,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28183 states, 19480 states have (on average 1.3529774127310061) internal successors, (26356), 20328 states have internal predecessors, (26356), 7019 states have call successors, (7019), 1198 states have call predecessors, (7019), 1683 states have return successors, (10164), 7089 states have call predecessors, (10164), 7014 states have call successors, (10164) [2022-07-22 23:38:34,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28183 states to 28183 states and 43539 transitions. [2022-07-22 23:38:34,346 INFO L78 Accepts]: Start accepts. Automaton has 28183 states and 43539 transitions. Word has length 70 [2022-07-22 23:38:34,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:38:34,346 INFO L495 AbstractCegarLoop]: Abstraction has 28183 states and 43539 transitions. [2022-07-22 23:38:34,346 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-22 23:38:34,347 INFO L276 IsEmpty]: Start isEmpty. Operand 28183 states and 43539 transitions. [2022-07-22 23:38:34,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-07-22 23:38:34,349 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:38:34,349 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:38:34,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 23:38:34,350 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:38:34,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:38:34,350 INFO L85 PathProgramCache]: Analyzing trace with hash -692175617, now seen corresponding path program 1 times [2022-07-22 23:38:34,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:38:34,351 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153354795] [2022-07-22 23:38:34,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:38:34,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:38:34,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:34,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:38:34,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:34,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:38:34,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:34,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:38:34,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:34,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:38:34,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:34,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:38:34,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:34,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:38:34,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:34,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 23:38:34,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:34,752 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-22 23:38:34,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:38:34,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153354795] [2022-07-22 23:38:34,753 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153354795] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:38:34,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:38:34,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 23:38:34,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914113460] [2022-07-22 23:38:34,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:38:34,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 23:38:34,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:38:34,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 23:38:34,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-22 23:38:34,756 INFO L87 Difference]: Start difference. First operand 28183 states and 43539 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-22 23:38:44,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:38:44,628 INFO L93 Difference]: Finished difference Result 32567 states and 50788 transitions. [2022-07-22 23:38:44,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-22 23:38:44,628 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 71 [2022-07-22 23:38:44,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:38:44,812 INFO L225 Difference]: With dead ends: 32567 [2022-07-22 23:38:44,812 INFO L226 Difference]: Without dead ends: 32564 [2022-07-22 23:38:44,837 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-22 23:38:44,838 INFO L413 NwaCegarLoop]: 3275 mSDtfsCounter, 8585 mSDsluCounter, 4820 mSDsCounter, 0 mSdLazyCounter, 5418 mSolverCounterSat, 6276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8986 SdHoareTripleChecker+Valid, 8095 SdHoareTripleChecker+Invalid, 11694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6276 IncrementalHoareTripleChecker+Valid, 5418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-07-22 23:38:44,839 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8986 Valid, 8095 Invalid, 11694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6276 Valid, 5418 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2022-07-22 23:38:44,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32564 states. [2022-07-22 23:38:46,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32564 to 28184. [2022-07-22 23:38:46,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28184 states, 19481 states have (on average 1.3529592936707562) internal successors, (26357), 20329 states have internal predecessors, (26357), 7019 states have call successors, (7019), 1198 states have call predecessors, (7019), 1683 states have return successors, (10164), 7089 states have call predecessors, (10164), 7014 states have call successors, (10164) [2022-07-22 23:38:46,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28184 states to 28184 states and 43540 transitions. [2022-07-22 23:38:46,301 INFO L78 Accepts]: Start accepts. Automaton has 28184 states and 43540 transitions. Word has length 71 [2022-07-22 23:38:46,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:38:46,302 INFO L495 AbstractCegarLoop]: Abstraction has 28184 states and 43540 transitions. [2022-07-22 23:38:46,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-22 23:38:46,302 INFO L276 IsEmpty]: Start isEmpty. Operand 28184 states and 43540 transitions. [2022-07-22 23:38:46,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-07-22 23:38:46,310 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:38:46,310 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:38:46,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 23:38:46,311 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:38:46,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:38:46,311 INFO L85 PathProgramCache]: Analyzing trace with hash 16435639, now seen corresponding path program 1 times [2022-07-22 23:38:46,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:38:46,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334363440] [2022-07-22 23:38:46,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:38:46,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:38:46,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:46,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:38:46,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:46,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:38:46,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:46,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:38:46,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:46,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:38:46,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:46,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:38:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:46,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:38:46,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:46,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 23:38:46,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:46,624 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-22 23:38:46,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:38:46,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334363440] [2022-07-22 23:38:46,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334363440] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:38:46,625 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:38:46,625 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 23:38:46,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441456182] [2022-07-22 23:38:46,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:38:46,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 23:38:46,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:38:46,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 23:38:46,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-22 23:38:46,627 INFO L87 Difference]: Start difference. First operand 28184 states and 43540 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-22 23:38:52,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:38:52,606 INFO L93 Difference]: Finished difference Result 32563 states and 50784 transitions. [2022-07-22 23:38:52,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 23:38:52,607 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 72 [2022-07-22 23:38:52,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:38:52,761 INFO L225 Difference]: With dead ends: 32563 [2022-07-22 23:38:52,761 INFO L226 Difference]: Without dead ends: 32560 [2022-07-22 23:38:52,784 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-07-22 23:38:52,785 INFO L413 NwaCegarLoop]: 2707 mSDtfsCounter, 5695 mSDsluCounter, 2563 mSDsCounter, 0 mSdLazyCounter, 2443 mSolverCounterSat, 3719 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5990 SdHoareTripleChecker+Valid, 5270 SdHoareTripleChecker+Invalid, 6162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3719 IncrementalHoareTripleChecker+Valid, 2443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2022-07-22 23:38:52,785 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5990 Valid, 5270 Invalid, 6162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3719 Valid, 2443 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2022-07-22 23:38:52,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32560 states. [2022-07-22 23:38:54,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32560 to 28183. [2022-07-22 23:38:54,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28183 states, 19481 states have (on average 1.3529079616036137) internal successors, (26356), 20328 states have internal predecessors, (26356), 7018 states have call successors, (7018), 1198 states have call predecessors, (7018), 1683 states have return successors, (10164), 7089 states have call predecessors, (10164), 7014 states have call successors, (10164) [2022-07-22 23:38:54,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28183 states to 28183 states and 43538 transitions. [2022-07-22 23:38:54,421 INFO L78 Accepts]: Start accepts. Automaton has 28183 states and 43538 transitions. Word has length 72 [2022-07-22 23:38:54,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:38:54,421 INFO L495 AbstractCegarLoop]: Abstraction has 28183 states and 43538 transitions. [2022-07-22 23:38:54,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 3 states have internal predecessors, (45), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-22 23:38:54,422 INFO L276 IsEmpty]: Start isEmpty. Operand 28183 states and 43538 transitions. [2022-07-22 23:38:54,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-22 23:38:54,424 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:38:54,424 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:38:54,424 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 23:38:54,425 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:38:54,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:38:54,425 INFO L85 PathProgramCache]: Analyzing trace with hash 508552962, now seen corresponding path program 1 times [2022-07-22 23:38:54,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:38:54,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247964385] [2022-07-22 23:38:54,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:38:54,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:38:54,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:54,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:38:54,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:54,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:38:54,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:54,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:38:54,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:54,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:38:54,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:54,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:38:54,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:54,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:38:54,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:54,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 23:38:54,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:38:54,929 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-22 23:38:54,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:38:54,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247964385] [2022-07-22 23:38:54,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247964385] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:38:54,930 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:38:54,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 23:38:54,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867908168] [2022-07-22 23:38:54,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:38:54,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 23:38:54,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:38:54,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 23:38:54,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-22 23:38:54,932 INFO L87 Difference]: Start difference. First operand 28183 states and 43538 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-22 23:39:00,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:39:00,715 INFO L93 Difference]: Finished difference Result 32562 states and 50782 transitions. [2022-07-22 23:39:00,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 23:39:00,716 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 73 [2022-07-22 23:39:00,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:39:00,891 INFO L225 Difference]: With dead ends: 32562 [2022-07-22 23:39:00,891 INFO L226 Difference]: Without dead ends: 32505 [2022-07-22 23:39:00,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2022-07-22 23:39:00,927 INFO L413 NwaCegarLoop]: 2771 mSDtfsCounter, 5614 mSDsluCounter, 2560 mSDsCounter, 0 mSdLazyCounter, 2432 mSolverCounterSat, 3643 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5912 SdHoareTripleChecker+Valid, 5331 SdHoareTripleChecker+Invalid, 6075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3643 IncrementalHoareTripleChecker+Valid, 2432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-07-22 23:39:00,927 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5912 Valid, 5331 Invalid, 6075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3643 Valid, 2432 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-07-22 23:39:00,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32505 states. [2022-07-22 23:39:02,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32505 to 28128. [2022-07-22 23:39:02,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28128 states, 19439 states have (on average 1.3530016976181902) internal successors, (26301), 20285 states have internal predecessors, (26301), 7007 states have call successors, (7007), 1196 states have call predecessors, (7007), 1681 states have return successors, (10154), 7079 states have call predecessors, (10154), 7004 states have call successors, (10154) [2022-07-22 23:39:02,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28128 states to 28128 states and 43462 transitions. [2022-07-22 23:39:02,452 INFO L78 Accepts]: Start accepts. Automaton has 28128 states and 43462 transitions. Word has length 73 [2022-07-22 23:39:02,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:39:02,452 INFO L495 AbstractCegarLoop]: Abstraction has 28128 states and 43462 transitions. [2022-07-22 23:39:02,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (8), 4 states have call predecessors, (8), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2022-07-22 23:39:02,453 INFO L276 IsEmpty]: Start isEmpty. Operand 28128 states and 43462 transitions. [2022-07-22 23:39:02,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-07-22 23:39:02,518 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:39:02,519 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:39:02,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 23:39:02,520 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:39:02,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:39:02,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1032271128, now seen corresponding path program 1 times [2022-07-22 23:39:02,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:39:02,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455680919] [2022-07-22 23:39:02,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:39:02,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:39:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:02,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:39:02,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:02,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:39:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:02,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:39:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:02,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:39:02,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:02,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:39:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:02,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:39:02,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:02,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2022-07-22 23:39:02,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:02,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2022-07-22 23:39:02,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:02,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2022-07-22 23:39:02,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:03,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-22 23:39:03,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:03,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-22 23:39:03,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:03,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:39:03,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:03,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 23:39:03,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:03,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-07-22 23:39:03,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:03,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:39:03,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:03,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 23:39:03,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:03,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:39:03,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:03,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:39:03,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:03,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-22 23:39:03,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:03,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-22 23:39:03,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:03,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 23:39:03,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:03,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-22 23:39:03,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:03,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-22 23:39:03,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:03,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-22 23:39:03,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:03,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-22 23:39:03,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:03,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-22 23:39:03,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:03,226 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-07-22 23:39:03,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:39:03,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455680919] [2022-07-22 23:39:03,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455680919] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:39:03,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:39:03,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-07-22 23:39:03,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173218737] [2022-07-22 23:39:03,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:39:03,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-22 23:39:03,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:39:03,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-22 23:39:03,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-07-22 23:39:03,229 INFO L87 Difference]: Start difference. First operand 28128 states and 43462 transitions. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (27), 9 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-22 23:39:24,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:39:24,971 INFO L93 Difference]: Finished difference Result 107323 states and 168875 transitions. [2022-07-22 23:39:24,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-07-22 23:39:24,971 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (27), 9 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 203 [2022-07-22 23:39:24,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:39:25,460 INFO L225 Difference]: With dead ends: 107323 [2022-07-22 23:39:25,460 INFO L226 Difference]: Without dead ends: 79221 [2022-07-22 23:39:25,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=201, Invalid=611, Unknown=0, NotChecked=0, Total=812 [2022-07-22 23:39:25,616 INFO L413 NwaCegarLoop]: 2995 mSDtfsCounter, 20787 mSDsluCounter, 6280 mSDsCounter, 0 mSdLazyCounter, 9867 mSolverCounterSat, 20327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21287 SdHoareTripleChecker+Valid, 9275 SdHoareTripleChecker+Invalid, 30194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 20327 IncrementalHoareTripleChecker+Valid, 9867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.3s IncrementalHoareTripleChecker+Time [2022-07-22 23:39:25,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21287 Valid, 9275 Invalid, 30194 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [20327 Valid, 9867 Invalid, 0 Unknown, 0 Unchecked, 18.3s Time] [2022-07-22 23:39:25,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79221 states. [2022-07-22 23:39:28,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79221 to 55835. [2022-07-22 23:39:28,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55835 states, 38043 states have (on average 1.3446889046605157) internal successors, (51156), 39808 states have internal predecessors, (51156), 14629 states have call successors, (14629), 2299 states have call predecessors, (14629), 3162 states have return successors, (18808), 14782 states have call predecessors, (18808), 14626 states have call successors, (18808) [2022-07-22 23:39:28,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55835 states to 55835 states and 84593 transitions. [2022-07-22 23:39:28,473 INFO L78 Accepts]: Start accepts. Automaton has 55835 states and 84593 transitions. Word has length 203 [2022-07-22 23:39:28,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:39:28,474 INFO L495 AbstractCegarLoop]: Abstraction has 55835 states and 84593 transitions. [2022-07-22 23:39:28,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (27), 9 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2022-07-22 23:39:28,475 INFO L276 IsEmpty]: Start isEmpty. Operand 55835 states and 84593 transitions. [2022-07-22 23:39:28,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-07-22 23:39:28,563 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:39:28,563 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:39:28,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 23:39:28,564 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:39:28,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:39:28,564 INFO L85 PathProgramCache]: Analyzing trace with hash 262525336, now seen corresponding path program 1 times [2022-07-22 23:39:28,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:39:28,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814962647] [2022-07-22 23:39:28,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:39:28,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:39:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:28,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:39:28,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:28,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:39:28,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:28,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:39:28,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:28,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:39:28,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:28,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:39:28,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:28,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:39:28,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:28,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 23:39:28,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:28,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-22 23:39:28,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:28,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-22 23:39:28,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:28,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2022-07-22 23:39:28,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:28,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-22 23:39:28,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:28,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-22 23:39:28,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:28,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-07-22 23:39:28,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:29,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:39:29,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:29,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 23:39:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:29,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-22 23:39:29,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:29,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:39:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:29,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 23:39:29,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:29,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:39:29,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:29,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:39:29,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:29,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-22 23:39:29,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:29,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-22 23:39:29,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:29,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2022-07-22 23:39:29,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:29,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2022-07-22 23:39:29,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:29,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-07-22 23:39:29,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:29,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-22 23:39:29,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:29,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-22 23:39:29,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:29,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-22 23:39:29,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:29,367 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-07-22 23:39:29,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:39:29,368 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814962647] [2022-07-22 23:39:29,368 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814962647] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:39:29,368 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:39:29,368 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-22 23:39:29,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902619392] [2022-07-22 23:39:29,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:39:29,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 23:39:29,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:39:29,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 23:39:29,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-07-22 23:39:29,370 INFO L87 Difference]: Start difference. First operand 55835 states and 84593 transitions. Second operand has 12 states, 12 states have (on average 10.666666666666666) internal successors, (128), 5 states have internal predecessors, (128), 2 states have call successors, (29), 9 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-22 23:39:41,185 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:39:50,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:39:50,159 INFO L93 Difference]: Finished difference Result 141099 states and 228798 transitions. [2022-07-22 23:39:50,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-07-22 23:39:50,159 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.666666666666666) internal successors, (128), 5 states have internal predecessors, (128), 2 states have call successors, (29), 9 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 232 [2022-07-22 23:39:50,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:39:50,883 INFO L225 Difference]: With dead ends: 141099 [2022-07-22 23:39:50,884 INFO L226 Difference]: Without dead ends: 85290 [2022-07-22 23:39:51,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=214, Invalid=656, Unknown=0, NotChecked=0, Total=870 [2022-07-22 23:39:51,081 INFO L413 NwaCegarLoop]: 3225 mSDtfsCounter, 11611 mSDsluCounter, 11200 mSDsCounter, 0 mSdLazyCounter, 10647 mSolverCounterSat, 10420 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11987 SdHoareTripleChecker+Valid, 14425 SdHoareTripleChecker+Invalid, 21068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10420 IncrementalHoareTripleChecker+Valid, 10647 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2022-07-22 23:39:51,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11987 Valid, 14425 Invalid, 21068 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10420 Valid, 10647 Invalid, 1 Unknown, 0 Unchecked, 16.5s Time] [2022-07-22 23:39:51,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85290 states. [2022-07-22 23:39:53,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85290 to 55867. [2022-07-22 23:39:53,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55867 states, 38075 states have (on average 1.3442416283650689) internal successors, (51182), 39840 states have internal predecessors, (51182), 14629 states have call successors, (14629), 2299 states have call predecessors, (14629), 3162 states have return successors, (18808), 14782 states have call predecessors, (18808), 14626 states have call successors, (18808) [2022-07-22 23:39:54,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55867 states to 55867 states and 84619 transitions. [2022-07-22 23:39:54,410 INFO L78 Accepts]: Start accepts. Automaton has 55867 states and 84619 transitions. Word has length 232 [2022-07-22 23:39:54,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:39:54,411 INFO L495 AbstractCegarLoop]: Abstraction has 55867 states and 84619 transitions. [2022-07-22 23:39:54,411 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.666666666666666) internal successors, (128), 5 states have internal predecessors, (128), 2 states have call successors, (29), 9 states have call predecessors, (29), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2022-07-22 23:39:54,411 INFO L276 IsEmpty]: Start isEmpty. Operand 55867 states and 84619 transitions. [2022-07-22 23:39:54,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-07-22 23:39:54,471 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:39:54,472 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:39:54,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-22 23:39:54,472 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:39:54,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:39:54,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1097251239, now seen corresponding path program 1 times [2022-07-22 23:39:54,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:39:54,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975562355] [2022-07-22 23:39:54,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:39:54,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:39:54,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:54,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:39:54,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:54,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:39:54,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:54,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:39:54,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:54,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:39:54,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:54,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:39:54,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:54,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:39:54,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:54,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 23:39:54,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:54,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-22 23:39:54,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:54,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-22 23:39:54,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:54,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-22 23:39:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:54,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-22 23:39:54,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:54,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-22 23:39:54,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:54,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-22 23:39:54,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:54,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:39:54,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:54,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 23:39:54,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:54,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-22 23:39:54,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:54,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:39:54,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:54,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2022-07-22 23:39:54,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:54,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 23:39:54,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:54,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-07-22 23:39:54,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:54,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-22 23:39:54,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:54,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-22 23:39:54,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:54,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-22 23:39:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:54,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-22 23:39:54,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:54,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2022-07-22 23:39:54,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:55,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-07-22 23:39:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:55,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-22 23:39:55,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:55,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-22 23:39:55,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:39:55,026 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2022-07-22 23:39:55,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:39:55,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975562355] [2022-07-22 23:39:55,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975562355] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:39:55,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:39:55,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-22 23:39:55,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614236593] [2022-07-22 23:39:55,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:39:55,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 23:39:55,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:39:55,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 23:39:55,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-22 23:39:55,029 INFO L87 Difference]: Start difference. First operand 55867 states and 84619 transitions. Second operand has 12 states, 12 states have (on average 10.916666666666666) internal successors, (131), 5 states have internal predecessors, (131), 3 states have call successors, (29), 9 states have call predecessors, (29), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-22 23:40:10,362 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.04s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:40:11,561 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:40:29,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:40:29,664 INFO L93 Difference]: Finished difference Result 188551 states and 304335 transitions. [2022-07-22 23:40:29,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-07-22 23:40:29,665 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.916666666666666) internal successors, (131), 5 states have internal predecessors, (131), 3 states have call successors, (29), 9 states have call predecessors, (29), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 238 [2022-07-22 23:40:29,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:40:30,614 INFO L225 Difference]: With dead ends: 188551 [2022-07-22 23:40:30,614 INFO L226 Difference]: Without dead ends: 132710 [2022-07-22 23:40:30,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 642 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=488, Invalid=1582, Unknown=0, NotChecked=0, Total=2070 [2022-07-22 23:40:30,903 INFO L413 NwaCegarLoop]: 5271 mSDtfsCounter, 11871 mSDsluCounter, 15651 mSDsCounter, 0 mSdLazyCounter, 18127 mSolverCounterSat, 13721 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12425 SdHoareTripleChecker+Valid, 20922 SdHoareTripleChecker+Invalid, 31848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 13721 IncrementalHoareTripleChecker+Valid, 18127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.2s IncrementalHoareTripleChecker+Time [2022-07-22 23:40:30,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12425 Valid, 20922 Invalid, 31848 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [13721 Valid, 18127 Invalid, 0 Unknown, 0 Unchecked, 27.2s Time] [2022-07-22 23:40:31,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132710 states. [2022-07-22 23:40:36,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132710 to 93615. [2022-07-22 23:40:36,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93615 states, 63831 states have (on average 1.3432971440209303) internal successors, (85744), 66774 states have internal predecessors, (85744), 24507 states have call successors, (24507), 3837 states have call predecessors, (24507), 5276 states have return successors, (31494), 24756 states have call predecessors, (31494), 24504 states have call successors, (31494) [2022-07-22 23:40:37,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93615 states to 93615 states and 141745 transitions. [2022-07-22 23:40:37,402 INFO L78 Accepts]: Start accepts. Automaton has 93615 states and 141745 transitions. Word has length 238 [2022-07-22 23:40:37,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:40:37,403 INFO L495 AbstractCegarLoop]: Abstraction has 93615 states and 141745 transitions. [2022-07-22 23:40:37,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.916666666666666) internal successors, (131), 5 states have internal predecessors, (131), 3 states have call successors, (29), 9 states have call predecessors, (29), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-07-22 23:40:37,403 INFO L276 IsEmpty]: Start isEmpty. Operand 93615 states and 141745 transitions. [2022-07-22 23:40:37,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2022-07-22 23:40:37,520 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:40:37,520 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:40:37,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-22 23:40:37,521 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:40:37,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:40:37,521 INFO L85 PathProgramCache]: Analyzing trace with hash -689960594, now seen corresponding path program 1 times [2022-07-22 23:40:37,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:40:37,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396912013] [2022-07-22 23:40:37,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:40:37,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:40:37,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:37,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:40:37,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:37,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:40:37,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:37,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:40:37,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:37,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:40:37,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:37,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:40:37,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:37,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-22 23:40:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:37,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-22 23:40:37,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:37,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-22 23:40:37,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:37,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-22 23:40:37,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:37,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-22 23:40:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:37,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-22 23:40:37,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:37,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-22 23:40:37,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:37,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-22 23:40:37,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:37,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-22 23:40:37,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:37,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:40:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:37,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-22 23:40:37,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:37,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-22 23:40:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:37,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:40:37,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:37,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 23:40:37,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:37,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-07-22 23:40:37,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:37,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:40:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:37,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2022-07-22 23:40:37,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:37,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2022-07-22 23:40:37,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:37,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:40:37,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:37,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:40:37,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:38,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 23:40:38,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:38,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2022-07-22 23:40:38,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:38,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-22 23:40:38,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:38,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-22 23:40:38,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:38,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-22 23:40:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:38,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2022-07-22 23:40:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:38,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-07-22 23:40:38,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:38,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-22 23:40:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:38,054 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2022-07-22 23:40:38,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:40:38,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396912013] [2022-07-22 23:40:38,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396912013] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 23:40:38,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [504016231] [2022-07-22 23:40:38,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:40:38,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 23:40:38,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:40:38,059 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 23:40:38,111 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 23:40:39,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:40:39,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 6359 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 23:40:39,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:40:39,563 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2022-07-22 23:40:39,564 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:40:39,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [504016231] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:40:39,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 23:40:39,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 12 [2022-07-22 23:40:39,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106021325] [2022-07-22 23:40:39,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:40:39,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:40:39,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:40:39,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:40:39,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-22 23:40:39,566 INFO L87 Difference]: Start difference. First operand 93615 states and 141745 transitions. Second operand has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-07-22 23:40:44,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:40:44,159 INFO L93 Difference]: Finished difference Result 170787 states and 258466 transitions. [2022-07-22 23:40:44,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:40:44,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.0) internal successors, (147), 3 states have internal predecessors, (147), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 268 [2022-07-22 23:40:44,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:40:44,601 INFO L225 Difference]: With dead ends: 170787 [2022-07-22 23:40:44,602 INFO L226 Difference]: Without dead ends: 77196 [2022-07-22 23:40:44,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 329 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-07-22 23:40:44,885 INFO L413 NwaCegarLoop]: 3020 mSDtfsCounter, 11 mSDsluCounter, 3005 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 6025 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 23:40:44,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 6025 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 23:40:44,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77196 states.