./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 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-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.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 0f420ae29f1d217fd86475befc2729bf689978fed36c08e1357ee5c24faa0f48 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 11:41:08,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 11:41:08,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 11:41:08,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 11:41:08,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 11:41:08,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 11:41:08,839 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 11:41:08,841 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 11:41:08,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 11:41:08,846 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 11:41:08,847 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 11:41:08,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 11:41:08,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 11:41:08,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 11:41:08,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 11:41:08,861 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 11:41:08,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 11:41:08,863 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 11:41:08,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 11:41:08,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 11:41:08,869 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 11:41:08,869 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 11:41:08,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 11:41:08,871 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 11:41:08,872 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 11:41:08,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 11:41:08,878 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 11:41:08,878 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 11:41:08,879 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 11:41:08,879 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 11:41:08,880 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 11:41:08,880 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 11:41:08,881 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 11:41:08,882 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 11:41:08,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 11:41:08,883 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 11:41:08,884 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 11:41:08,884 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 11:41:08,884 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 11:41:08,884 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 11:41:08,885 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 11:41:08,886 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 11:41:08,892 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 11:41:08,917 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 11:41:08,918 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 11:41:08,918 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 11:41:08,918 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 11:41:08,919 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 11:41:08,919 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 11:41:08,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 11:41:08,920 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 11:41:08,920 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 11:41:08,921 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 11:41:08,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 11:41:08,921 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 11:41:08,921 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 11:41:08,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 11:41:08,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 11:41:08,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 11:41:08,922 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 11:41:08,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 11:41:08,922 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 11:41:08,922 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 11:41:08,923 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 11:41:08,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:41:08,923 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 11:41:08,923 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 11:41:08,923 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 11:41:08,923 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 11:41:08,924 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 11:41:08,924 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 11:41:08,924 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 11:41:08,924 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 11:41:08,924 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f420ae29f1d217fd86475befc2729bf689978fed36c08e1357ee5c24faa0f48 [2022-07-21 11:41:09,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 11:41:09,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 11:41:09,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 11:41:09,232 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 11:41:09,232 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 11:41:09,234 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-21 11:41:09,297 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7c9b10be/e5de24b5c6d6422499bdd82b3821e7f8/FLAGec0ce31d5 [2022-07-21 11:41:09,923 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 11:41:09,923 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-21 11:41:09,957 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7c9b10be/e5de24b5c6d6422499bdd82b3821e7f8/FLAGec0ce31d5 [2022-07-21 11:41:10,259 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a7c9b10be/e5de24b5c6d6422499bdd82b3821e7f8 [2022-07-21 11:41:10,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 11:41:10,262 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 11:41:10,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 11:41:10,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 11:41:10,265 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 11:41:10,266 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:41:10" (1/1) ... [2022-07-21 11:41:10,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@126fe6d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:10, skipping insertion in model container [2022-07-21 11:41:10,267 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:41:10" (1/1) ... [2022-07-21 11:41:10,271 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 11:41:10,339 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 11:41:11,451 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-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i[238753,238766] [2022-07-21 11:41:11,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:41:11,510 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 11:41:11,734 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-validator-v0.8/linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i[238753,238766] [2022-07-21 11:41:11,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 11:41:11,812 INFO L208 MainTranslator]: Completed translation [2022-07-21 11:41:11,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:11 WrapperNode [2022-07-21 11:41:11,814 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 11:41:11,815 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 11:41:11,815 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 11:41:11,815 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 11:41:11,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:11" (1/1) ... [2022-07-21 11:41:11,894 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:11" (1/1) ... [2022-07-21 11:41:12,209 INFO L137 Inliner]: procedures = 257, calls = 1800, calls flagged for inlining = 103, calls inlined = 99, statements flattened = 4658 [2022-07-21 11:41:12,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 11:41:12,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 11:41:12,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 11:41:12,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 11:41:12,217 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:11" (1/1) ... [2022-07-21 11:41:12,217 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:11" (1/1) ... [2022-07-21 11:41:12,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:11" (1/1) ... [2022-07-21 11:41:12,301 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:11" (1/1) ... [2022-07-21 11:41:12,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:11" (1/1) ... [2022-07-21 11:41:12,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:11" (1/1) ... [2022-07-21 11:41:12,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:11" (1/1) ... [2022-07-21 11:41:12,512 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 11:41:12,515 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 11:41:12,515 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 11:41:12,515 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 11:41:12,516 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:11" (1/1) ... [2022-07-21 11:41:12,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 11:41:12,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 11:41:12,561 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) [2022-07-21 11:41:12,634 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 [2022-07-21 11:41:12,688 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-21 11:41:12,688 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-21 11:41:12,689 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-21 11:41:12,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-21 11:41:12,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-21 11:41:12,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-21 11:41:12,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-21 11:41:12,701 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-21 11:41:12,701 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_delete [2022-07-21 11:41:12,701 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_delete [2022-07-21 11:41:12,703 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_11 [2022-07-21 11:41:12,703 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_11 [2022-07-21 11:41:12,703 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_wait [2022-07-21 11:41:12,704 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_wait [2022-07-21 11:41:12,704 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_usb_bulk_msg [2022-07-21 11:41:12,704 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_usb_bulk_msg [2022-07-21 11:41:12,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2022-07-21 11:41:12,704 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2022-07-21 11:41:12,704 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2022-07-21 11:41:12,704 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2022-07-21 11:41:12,704 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-21 11:41:12,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-21 11:41:12,705 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2022-07-21 11:41:12,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2022-07-21 11:41:12,705 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_workqueue [2022-07-21 11:41:12,705 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_workqueue [2022-07-21 11:41:12,705 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_signal_sdio_irq [2022-07-21 11:41:12,705 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_signal_sdio_irq [2022-07-21 11:41:12,705 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-21 11:41:12,705 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-21 11:41:12,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-21 11:41:12,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-21 11:41:12,706 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-21 11:41:12,706 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-21 11:41:12,706 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_49 [2022-07-21 11:41:12,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_49 [2022-07-21 11:41:12,706 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 11:41:12,706 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 11:41:12,707 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_detect_change [2022-07-21 11:41:12,707 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_detect_change [2022-07-21 11:41:12,707 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2022-07-21 11:41:12,707 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2022-07-21 11:41:12,707 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_cancel [2022-07-21 11:41:12,707 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_cancel [2022-07-21 11:41:12,708 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-07-21 11:41:12,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2022-07-21 11:41:12,708 INFO L130 BoogieDeclarations]: Found specification of procedure usb_sg_init [2022-07-21 11:41:12,708 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_sg_init [2022-07-21 11:41:12,710 INFO L130 BoogieDeclarations]: Found specification of procedure __command_read_data [2022-07-21 11:41:12,710 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_read_data [2022-07-21 11:41:12,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_26 [2022-07-21 11:41:12,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_26 [2022-07-21 11:41:12,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 11:41:12,710 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_28 [2022-07-21 11:41:12,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_28 [2022-07-21 11:41:12,711 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-21 11:41:12,711 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-21 11:41:12,712 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2022-07-21 11:41:12,712 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2022-07-21 11:41:12,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 11:41:12,713 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_12 [2022-07-21 11:41:12,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_12 [2022-07-21 11:41:12,713 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-07-21 11:41:12,713 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-07-21 11:41:12,713 INFO L130 BoogieDeclarations]: Found specification of procedure irqpoll_out_completed [2022-07-21 11:41:12,714 INFO L138 BoogieDeclarations]: Found implementation of procedure irqpoll_out_completed [2022-07-21 11:41:12,714 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_disconnect [2022-07-21 11:41:12,714 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_disconnect [2022-07-21 11:41:12,714 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_14 [2022-07-21 11:41:12,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_14 [2022-07-21 11:41:12,714 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_work_3 [2022-07-21 11:41:12,715 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_work_3 [2022-07-21 11:41:12,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 11:41:12,715 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 11:41:12,715 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-07-21 11:41:12,715 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-07-21 11:41:12,715 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-21 11:41:12,715 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-21 11:41:12,716 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_enable_sdio_irq [2022-07-21 11:41:12,716 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_enable_sdio_irq [2022-07-21 11:41:12,716 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-21 11:41:12,716 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-21 11:41:12,716 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2022-07-21 11:41:12,716 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2022-07-21 11:41:12,716 INFO L130 BoogieDeclarations]: Found specification of procedure add_offloaded_reg [2022-07-21 11:41:12,716 INFO L138 BoogieDeclarations]: Found implementation of procedure add_offloaded_reg [2022-07-21 11:41:12,716 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-07-21 11:41:12,717 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-07-21 11:41:12,717 INFO L130 BoogieDeclarations]: Found specification of procedure command_out_completed [2022-07-21 11:41:12,717 INFO L138 BoogieDeclarations]: Found implementation of procedure command_out_completed [2022-07-21 11:41:12,717 INFO L130 BoogieDeclarations]: Found specification of procedure roundup_to_multiple_of_64 [2022-07-21 11:41:12,718 INFO L138 BoogieDeclarations]: Found implementation of procedure roundup_to_multiple_of_64 [2022-07-21 11:41:12,718 INFO L130 BoogieDeclarations]: Found specification of procedure flush_workqueue [2022-07-21 11:41:12,718 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_workqueue [2022-07-21 11:41:12,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-21 11:41:12,718 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_cmndwork_thread [2022-07-21 11:41:12,719 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_cmndwork_thread [2022-07-21 11:41:12,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-21 11:41:12,719 INFO L130 BoogieDeclarations]: Found specification of procedure send_command [2022-07-21 11:41:12,719 INFO L138 BoogieDeclarations]: Found implementation of procedure send_command [2022-07-21 11:41:12,720 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2022-07-21 11:41:12,720 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2022-07-21 11:41:12,720 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 11:41:12,720 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_6 [2022-07-21 11:41:12,720 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_6 [2022-07-21 11:41:12,721 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2022-07-21 11:41:12,721 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2022-07-21 11:41:12,721 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-21 11:41:12,721 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-21 11:41:12,721 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-07-21 11:41:12,721 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-07-21 11:41:12,722 INFO L130 BoogieDeclarations]: Found specification of procedure send_irqpoll [2022-07-21 11:41:12,722 INFO L138 BoogieDeclarations]: Found implementation of procedure send_irqpoll [2022-07-21 11:41:12,722 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-07-21 11:41:12,722 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-07-21 11:41:12,722 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-21 11:41:12,722 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-21 11:41:12,723 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2022-07-21 11:41:12,723 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2022-07-21 11:41:12,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 11:41:12,725 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_response_error [2022-07-21 11:41:12,725 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_response_error [2022-07-21 11:41:12,725 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_out [2022-07-21 11:41:12,726 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_out [2022-07-21 11:41:12,727 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_free_host [2022-07-21 11:41:12,727 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_free_host [2022-07-21 11:41:12,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-21 11:41:12,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-21 11:41:12,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_31 [2022-07-21 11:41:12,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_31 [2022-07-21 11:41:12,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-21 11:41:12,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-21 11:41:12,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 11:41:12,730 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_6 [2022-07-21 11:41:12,730 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_6 [2022-07-21 11:41:12,730 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_queue_poll_work [2022-07-21 11:41:12,730 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_queue_poll_work [2022-07-21 11:41:12,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-21 11:41:12,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-21 11:41:12,730 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2022-07-21 11:41:12,730 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2022-07-21 11:41:12,731 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_bulk_in [2022-07-21 11:41:12,731 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_bulk_in [2022-07-21 11:41:12,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 11:41:12,731 INFO L130 BoogieDeclarations]: Found specification of procedure sg_copy_to_buffer [2022-07-21 11:41:12,731 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_copy_to_buffer [2022-07-21 11:41:12,731 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_6 [2022-07-21 11:41:12,731 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_6 [2022-07-21 11:41:12,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_8 [2022-07-21 11:41:12,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_8 [2022-07-21 11:41:12,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-07-21 11:41:12,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-07-21 11:41:12,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 11:41:12,732 INFO L130 BoogieDeclarations]: Found specification of procedure __download_offload_pseudocode [2022-07-21 11:41:12,732 INFO L138 BoogieDeclarations]: Found implementation of procedure __download_offload_pseudocode [2022-07-21 11:41:12,732 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 11:41:12,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-21 11:41:12,732 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_pollwork_thread [2022-07-21 11:41:12,732 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_pollwork_thread [2022-07-21 11:41:12,732 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_InterfaceNumber [2022-07-21 11:41:12,733 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_InterfaceNumber [2022-07-21 11:41:12,733 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2022-07-21 11:41:12,733 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2022-07-21 11:41:12,733 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-07-21 11:41:12,733 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-07-21 11:41:12,733 INFO L130 BoogieDeclarations]: Found specification of procedure __do_poll [2022-07-21 11:41:12,733 INFO L138 BoogieDeclarations]: Found implementation of procedure __do_poll [2022-07-21 11:41:12,734 INFO L130 BoogieDeclarations]: Found specification of procedure call_and_disable_all_3 [2022-07-21 11:41:12,734 INFO L138 BoogieDeclarations]: Found implementation of procedure call_and_disable_all_3 [2022-07-21 11:41:12,734 INFO L130 BoogieDeclarations]: Found specification of procedure new_system_port_status [2022-07-21 11:41:12,734 INFO L138 BoogieDeclarations]: Found implementation of procedure new_system_port_status [2022-07-21 11:41:12,734 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_request_done [2022-07-21 11:41:12,734 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_request_done [2022-07-21 11:41:12,734 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2022-07-21 11:41:12,734 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2022-07-21 11:41:12,734 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2022-07-21 11:41:12,735 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2022-07-21 11:41:12,735 INFO L130 BoogieDeclarations]: Found specification of procedure __command_write_data [2022-07-21 11:41:12,735 INFO L138 BoogieDeclarations]: Found implementation of procedure __command_write_data [2022-07-21 11:41:12,735 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2022-07-21 11:41:12,735 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2022-07-21 11:41:12,735 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-07-21 11:41:12,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-07-21 11:41:12,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_46 [2022-07-21 11:41:12,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_46 [2022-07-21 11:41:12,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2022-07-21 11:41:12,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2022-07-21 11:41:12,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 11:41:12,736 INFO L130 BoogieDeclarations]: Found specification of procedure usb_string [2022-07-21 11:41:12,736 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_string [2022-07-21 11:41:12,736 INFO L130 BoogieDeclarations]: Found specification of procedure mmc_priv [2022-07-21 11:41:12,736 INFO L138 BoogieDeclarations]: Found implementation of procedure mmc_priv [2022-07-21 11:41:12,736 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2022-07-21 11:41:12,736 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2022-07-21 11:41:12,737 INFO L130 BoogieDeclarations]: Found specification of procedure vub300_deadwork_thread [2022-07-21 11:41:12,737 INFO L138 BoogieDeclarations]: Found implementation of procedure vub300_deadwork_thread [2022-07-21 11:41:12,737 INFO L130 BoogieDeclarations]: Found specification of procedure check_vub300_port_status [2022-07-21 11:41:12,737 INFO L138 BoogieDeclarations]: Found implementation of procedure check_vub300_port_status [2022-07-21 11:41:12,737 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2022-07-21 11:41:12,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 11:41:12,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 11:41:13,251 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 11:41:13,253 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 11:41:14,136 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-21 11:41:16,662 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 11:41:16,675 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 11:41:16,675 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-21 11:41:16,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:41:16 BoogieIcfgContainer [2022-07-21 11:41:16,678 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 11:41:16,679 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 11:41:16,680 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 11:41:16,682 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 11:41:16,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:41:10" (1/3) ... [2022-07-21 11:41:16,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6edce8f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:41:16, skipping insertion in model container [2022-07-21 11:41:16,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:41:11" (2/3) ... [2022-07-21 11:41:16,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6edce8f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:41:16, skipping insertion in model container [2022-07-21 11:41:16,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:41:16" (3/3) ... [2022-07-21 11:41:16,684 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-5fdb450-1-144_2a-drivers--mmc--host--vub300.ko-entry_point_ldv-val-v0.8.cil.out.i [2022-07-21 11:41:16,694 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 11:41:16,694 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 11:41:16,748 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 11:41:16,753 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@2981cf5e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7d9a487 [2022-07-21 11:41:16,753 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 11:41:16,760 INFO L276 IsEmpty]: Start isEmpty. Operand has 1659 states, 1189 states have (on average 1.4297729184188395) internal successors, (1700), 1254 states have internal predecessors, (1700), 377 states have call successors, (377), 92 states have call predecessors, (377), 91 states have return successors, (368), 342 states have call predecessors, (368), 368 states have call successors, (368) [2022-07-21 11:41:16,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-21 11:41:16,774 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:41:16,775 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-21 11:41:16,775 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:41:16,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:41:16,779 INFO L85 PathProgramCache]: Analyzing trace with hash -764912959, now seen corresponding path program 1 times [2022-07-21 11:41:16,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:41:16,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401701379] [2022-07-21 11:41:16,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:41:16,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:41:16,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:17,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:41:17,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:17,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:17,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:17,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:17,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:17,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:41:17,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:17,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:17,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:17,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:17,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:17,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:41:17,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:17,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:17,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:17,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:17,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:17,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:41:17,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:17,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:17,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:17,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:17,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:17,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:41:17,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:17,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:17,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:17,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:41:17,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:17,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:17,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:17,242 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-21 11:41:17,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:41:17,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401701379] [2022-07-21 11:41:17,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401701379] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:41:17,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:41:17,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 11:41:17,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351197734] [2022-07-21 11:41:17,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:41:17,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 11:41:17,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:41:17,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 11:41:17,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 11:41:17,269 INFO L87 Difference]: Start difference. First operand has 1659 states, 1189 states have (on average 1.4297729184188395) internal successors, (1700), 1254 states have internal predecessors, (1700), 377 states have call successors, (377), 92 states have call predecessors, (377), 91 states have return successors, (368), 342 states have call predecessors, (368), 368 states have call successors, (368) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 11:41:26,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:41:26,607 INFO L93 Difference]: Finished difference Result 3471 states and 5252 transitions. [2022-07-21 11:41:26,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 11:41:26,610 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 114 [2022-07-21 11:41:26,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:41:26,646 INFO L225 Difference]: With dead ends: 3471 [2022-07-21 11:41:26,646 INFO L226 Difference]: Without dead ends: 1801 [2022-07-21 11:41:26,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:41:26,662 INFO L413 NwaCegarLoop]: 2229 mSDtfsCounter, 1177 mSDsluCounter, 2463 mSDsCounter, 0 mSdLazyCounter, 2306 mSolverCounterSat, 958 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1206 SdHoareTripleChecker+Valid, 4692 SdHoareTripleChecker+Invalid, 3264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 958 IncrementalHoareTripleChecker+Valid, 2306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-07-21 11:41:26,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1206 Valid, 4692 Invalid, 3264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [958 Valid, 2306 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2022-07-21 11:41:26,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2022-07-21 11:41:26,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1643. [2022-07-21 11:41:26,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1643 states, 1184 states have (on average 1.3876689189189189) internal successors, (1643), 1238 states have internal predecessors, (1643), 368 states have call successors, (368), 91 states have call predecessors, (368), 90 states have return successors, (363), 337 states have call predecessors, (363), 363 states have call successors, (363) [2022-07-21 11:41:26,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1643 states to 1643 states and 2374 transitions. [2022-07-21 11:41:26,792 INFO L78 Accepts]: Start accepts. Automaton has 1643 states and 2374 transitions. Word has length 114 [2022-07-21 11:41:26,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:41:26,792 INFO L495 AbstractCegarLoop]: Abstraction has 1643 states and 2374 transitions. [2022-07-21 11:41:26,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (10), 5 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 11:41:26,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1643 states and 2374 transitions. [2022-07-21 11:41:26,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-21 11:41:26,799 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:41:26,800 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-21 11:41:26,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 11:41:26,800 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:41:26,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:41:26,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1329818825, now seen corresponding path program 1 times [2022-07-21 11:41:26,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:41:26,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109182121] [2022-07-21 11:41:26,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:41:26,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:41:26,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:27,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:41:27,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:27,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:27,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:27,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:27,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:41:27,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:27,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:27,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:27,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:27,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:27,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:41:27,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:27,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:27,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:27,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:27,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:27,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:41:27,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:27,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:27,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:27,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:27,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:27,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:41:27,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:27,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:27,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:27,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:41:27,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:27,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:27,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:27,154 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-21 11:41:27,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:41:27,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109182121] [2022-07-21 11:41:27,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109182121] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:41:27,155 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:41:27,155 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:41:27,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62229447] [2022-07-21 11:41:27,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:41:27,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:41:27,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:41:27,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:41:27,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:41:27,159 INFO L87 Difference]: Start difference. First operand 1643 states and 2374 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 11:41:34,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:41:34,662 INFO L93 Difference]: Finished difference Result 5195 states and 7977 transitions. [2022-07-21 11:41:34,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 11:41:34,662 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 114 [2022-07-21 11:41:34,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:41:34,682 INFO L225 Difference]: With dead ends: 5195 [2022-07-21 11:41:34,682 INFO L226 Difference]: Without dead ends: 3575 [2022-07-21 11:41:34,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-21 11:41:34,692 INFO L413 NwaCegarLoop]: 2760 mSDtfsCounter, 5668 mSDsluCounter, 2717 mSDsCounter, 0 mSdLazyCounter, 2325 mSolverCounterSat, 3136 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5873 SdHoareTripleChecker+Valid, 5477 SdHoareTripleChecker+Invalid, 5461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3136 IncrementalHoareTripleChecker+Valid, 2325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-07-21 11:41:34,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5873 Valid, 5477 Invalid, 5461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3136 Valid, 2325 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2022-07-21 11:41:34,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3575 states. [2022-07-21 11:41:34,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3575 to 3345. [2022-07-21 11:41:34,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3345 states, 2405 states have (on average 1.3817047817047816) internal successors, (3323), 2520 states have internal predecessors, (3323), 735 states have call successors, (735), 180 states have call predecessors, (735), 204 states have return successors, (939), 697 states have call predecessors, (939), 730 states have call successors, (939) [2022-07-21 11:41:34,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3345 states to 3345 states and 4997 transitions. [2022-07-21 11:41:34,841 INFO L78 Accepts]: Start accepts. Automaton has 3345 states and 4997 transitions. Word has length 114 [2022-07-21 11:41:34,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:41:34,844 INFO L495 AbstractCegarLoop]: Abstraction has 3345 states and 4997 transitions. [2022-07-21 11:41:34,845 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 11:41:34,848 INFO L276 IsEmpty]: Start isEmpty. Operand 3345 states and 4997 transitions. [2022-07-21 11:41:34,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-07-21 11:41:34,855 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:41:34,855 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-21 11:41:34,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-21 11:41:34,856 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:41:34,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:41:34,856 INFO L85 PathProgramCache]: Analyzing trace with hash -1725820512, now seen corresponding path program 1 times [2022-07-21 11:41:34,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:41:34,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003239875] [2022-07-21 11:41:34,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:41:34,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:41:34,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:35,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:41:35,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:35,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:35,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:35,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:35,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:35,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:41:35,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:35,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:35,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:35,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:35,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:35,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:41:35,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:35,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:35,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:35,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:35,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:35,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:41:35,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:35,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:35,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:35,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:35,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:35,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:41:35,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:35,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:35,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:35,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:41:35,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:35,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:35,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:35,145 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-21 11:41:35,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:41:35,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003239875] [2022-07-21 11:41:35,146 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003239875] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:41:35,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:41:35,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:41:35,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631878594] [2022-07-21 11:41:35,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:41:35,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:41:35,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:41:35,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:41:35,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:41:35,149 INFO L87 Difference]: Start difference. First operand 3345 states and 4997 transitions. Second operand has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 11:41:49,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:41:49,118 INFO L93 Difference]: Finished difference Result 10421 states and 16620 transitions. [2022-07-21 11:41:49,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 11:41:49,119 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 115 [2022-07-21 11:41:49,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:41:49,161 INFO L225 Difference]: With dead ends: 10421 [2022-07-21 11:41:49,161 INFO L226 Difference]: Without dead ends: 7099 [2022-07-21 11:41:49,183 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-21 11:41:49,184 INFO L413 NwaCegarLoop]: 2801 mSDtfsCounter, 4384 mSDsluCounter, 4560 mSDsCounter, 0 mSdLazyCounter, 4421 mSolverCounterSat, 2134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4598 SdHoareTripleChecker+Valid, 7361 SdHoareTripleChecker+Invalid, 6555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2134 IncrementalHoareTripleChecker+Valid, 4421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2022-07-21 11:41:49,184 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4598 Valid, 7361 Invalid, 6555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2134 Valid, 4421 Invalid, 0 Unknown, 0 Unchecked, 13.5s Time] [2022-07-21 11:41:49,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7099 states. [2022-07-21 11:41:49,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7099 to 6682. [2022-07-21 11:41:49,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6682 states, 4804 states have (on average 1.3805162364696086) internal successors, (6632), 5037 states have internal predecessors, (6632), 1463 states have call successors, (1463), 358 states have call predecessors, (1463), 414 states have return successors, (2241), 1395 states have call predecessors, (2241), 1458 states have call successors, (2241) [2022-07-21 11:41:49,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6682 states to 6682 states and 10336 transitions. [2022-07-21 11:41:49,409 INFO L78 Accepts]: Start accepts. Automaton has 6682 states and 10336 transitions. Word has length 115 [2022-07-21 11:41:49,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:41:49,409 INFO L495 AbstractCegarLoop]: Abstraction has 6682 states and 10336 transitions. [2022-07-21 11:41:49,409 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.166666666666666) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 11:41:49,409 INFO L276 IsEmpty]: Start isEmpty. Operand 6682 states and 10336 transitions. [2022-07-21 11:41:49,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-21 11:41:49,411 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:41:49,411 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-21 11:41:49,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-21 11:41:49,412 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:41:49,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:41:49,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1961354580, now seen corresponding path program 1 times [2022-07-21 11:41:49,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:41:49,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130054214] [2022-07-21 11:41:49,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:41:49,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:41:49,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:49,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:41:49,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:49,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:49,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:49,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:49,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:49,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:41:49,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:49,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:49,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:49,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:49,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:49,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:41:49,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:49,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:49,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:49,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:49,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:49,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:41:49,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:49,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:49,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:49,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:49,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:49,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:41:49,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:49,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:49,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:49,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:41:49,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:49,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:49,613 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-21 11:41:49,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:41:49,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130054214] [2022-07-21 11:41:49,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130054214] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:41:49,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:41:49,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:41:49,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088533038] [2022-07-21 11:41:49,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:41:49,615 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:41:49,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:41:49,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:41:49,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:41:49,616 INFO L87 Difference]: Start difference. First operand 6682 states and 10336 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 11:41:59,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:41:59,398 INFO L93 Difference]: Finished difference Result 7097 states and 11105 transitions. [2022-07-21 11:41:59,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 11:41:59,399 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 116 [2022-07-21 11:41:59,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:41:59,437 INFO L225 Difference]: With dead ends: 7097 [2022-07-21 11:41:59,437 INFO L226 Difference]: Without dead ends: 7094 [2022-07-21 11:41:59,442 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-21 11:41:59,444 INFO L413 NwaCegarLoop]: 2798 mSDtfsCounter, 4587 mSDsluCounter, 3594 mSDsCounter, 0 mSdLazyCounter, 3393 mSolverCounterSat, 2236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4800 SdHoareTripleChecker+Valid, 6392 SdHoareTripleChecker+Invalid, 5629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2236 IncrementalHoareTripleChecker+Valid, 3393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2022-07-21 11:41:59,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4800 Valid, 6392 Invalid, 5629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2236 Valid, 3393 Invalid, 0 Unknown, 0 Unchecked, 9.5s Time] [2022-07-21 11:41:59,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7094 states. [2022-07-21 11:41:59,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7094 to 6683. [2022-07-21 11:41:59,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6683 states, 4805 states have (on average 1.3804370447450571) internal successors, (6633), 5038 states have internal predecessors, (6633), 1463 states have call successors, (1463), 358 states have call predecessors, (1463), 414 states have return successors, (2241), 1395 states have call predecessors, (2241), 1458 states have call successors, (2241) [2022-07-21 11:41:59,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6683 states to 6683 states and 10337 transitions. [2022-07-21 11:41:59,669 INFO L78 Accepts]: Start accepts. Automaton has 6683 states and 10337 transitions. Word has length 116 [2022-07-21 11:41:59,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:41:59,669 INFO L495 AbstractCegarLoop]: Abstraction has 6683 states and 10337 transitions. [2022-07-21 11:41:59,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 11:41:59,670 INFO L276 IsEmpty]: Start isEmpty. Operand 6683 states and 10337 transitions. [2022-07-21 11:41:59,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-07-21 11:41:59,672 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:41:59,672 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-21 11:41:59,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-21 11:41:59,672 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:41:59,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:41:59,673 INFO L85 PathProgramCache]: Analyzing trace with hash -672971229, now seen corresponding path program 1 times [2022-07-21 11:41:59,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:41:59,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725326514] [2022-07-21 11:41:59,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:41:59,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:41:59,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:59,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:41:59,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:59,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:59,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:59,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:59,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:59,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:41:59,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:59,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:59,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:59,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:59,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:59,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:41:59,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:59,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:59,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:59,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:59,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:41:59,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:59,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:59,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:59,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:41:59,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:59,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:41:59,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:59,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:59,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:59,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:41:59,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:59,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:41:59,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:41:59,843 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-21 11:41:59,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:41:59,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725326514] [2022-07-21 11:41:59,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725326514] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:41:59,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:41:59,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:41:59,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498270639] [2022-07-21 11:41:59,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:41:59,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:41:59,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:41:59,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:41:59,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:41:59,845 INFO L87 Difference]: Start difference. First operand 6683 states and 10337 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 11:42:09,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:42:09,275 INFO L93 Difference]: Finished difference Result 7093 states and 11101 transitions. [2022-07-21 11:42:09,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 11:42:09,276 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 117 [2022-07-21 11:42:09,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:42:09,312 INFO L225 Difference]: With dead ends: 7093 [2022-07-21 11:42:09,312 INFO L226 Difference]: Without dead ends: 7090 [2022-07-21 11:42:09,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-21 11:42:09,318 INFO L413 NwaCegarLoop]: 2158 mSDtfsCounter, 3205 mSDsluCounter, 2418 mSDsCounter, 0 mSdLazyCounter, 2328 mSolverCounterSat, 1274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3412 SdHoareTripleChecker+Valid, 4576 SdHoareTripleChecker+Invalid, 3602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1274 IncrementalHoareTripleChecker+Valid, 2328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2022-07-21 11:42:09,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3412 Valid, 4576 Invalid, 3602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1274 Valid, 2328 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2022-07-21 11:42:09,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7090 states. [2022-07-21 11:42:09,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7090 to 6682. [2022-07-21 11:42:09,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6682 states, 4805 states have (on average 1.380228928199792) internal successors, (6632), 5037 states have internal predecessors, (6632), 1462 states have call successors, (1462), 358 states have call predecessors, (1462), 414 states have return successors, (2241), 1395 states have call predecessors, (2241), 1458 states have call successors, (2241) [2022-07-21 11:42:09,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6682 states to 6682 states and 10335 transitions. [2022-07-21 11:42:09,558 INFO L78 Accepts]: Start accepts. Automaton has 6682 states and 10335 transitions. Word has length 117 [2022-07-21 11:42:09,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:42:09,559 INFO L495 AbstractCegarLoop]: Abstraction has 6682 states and 10335 transitions. [2022-07-21 11:42:09,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 11:42:09,559 INFO L276 IsEmpty]: Start isEmpty. Operand 6682 states and 10335 transitions. [2022-07-21 11:42:09,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-21 11:42:09,561 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:42:09,561 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2022-07-21 11:42:09,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-21 11:42:09,562 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:42:09,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:42:09,562 INFO L85 PathProgramCache]: Analyzing trace with hash 612211855, now seen corresponding path program 1 times [2022-07-21 11:42:09,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:42:09,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803385148] [2022-07-21 11:42:09,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:42:09,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:42:09,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:09,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:42:09,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:09,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:09,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:09,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:09,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:42:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:09,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:09,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:09,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:09,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:09,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:42:09,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:09,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:09,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:09,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:09,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:09,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:42:09,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:09,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:09,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:09,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:09,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:09,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:42:09,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:09,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:09,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:09,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:42:09,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:09,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:09,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:09,739 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-07-21 11:42:09,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:42:09,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803385148] [2022-07-21 11:42:09,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803385148] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:42:09,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:42:09,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-21 11:42:09,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743982891] [2022-07-21 11:42:09,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:42:09,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:42:09,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:42:09,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:42:09,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-21 11:42:09,740 INFO L87 Difference]: Start difference. First operand 6682 states and 10335 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 11:42:16,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:42:16,954 INFO L93 Difference]: Finished difference Result 7092 states and 11099 transitions. [2022-07-21 11:42:16,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 11:42:16,955 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 118 [2022-07-21 11:42:16,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:42:17,031 INFO L225 Difference]: With dead ends: 7092 [2022-07-21 11:42:17,031 INFO L226 Difference]: Without dead ends: 7059 [2022-07-21 11:42:17,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-21 11:42:17,051 INFO L413 NwaCegarLoop]: 2167 mSDtfsCounter, 3299 mSDsluCounter, 1640 mSDsCounter, 0 mSdLazyCounter, 1677 mSolverCounterSat, 1321 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3505 SdHoareTripleChecker+Valid, 3807 SdHoareTripleChecker+Invalid, 2998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1321 IncrementalHoareTripleChecker+Valid, 1677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-07-21 11:42:17,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3505 Valid, 3807 Invalid, 2998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1321 Valid, 1677 Invalid, 0 Unknown, 0 Unchecked, 7.0s Time] [2022-07-21 11:42:17,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7059 states. [2022-07-21 11:42:17,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7059 to 6651. [2022-07-21 11:42:17,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6651 states, 4788 states have (on average 1.3807435254803675) internal successors, (6611), 5019 states have internal predecessors, (6611), 1449 states have call successors, (1449), 357 states have call predecessors, (1449), 413 states have return successors, (2205), 1383 states have call predecessors, (2205), 1446 states have call successors, (2205) [2022-07-21 11:42:17,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6651 states to 6651 states and 10265 transitions. [2022-07-21 11:42:17,266 INFO L78 Accepts]: Start accepts. Automaton has 6651 states and 10265 transitions. Word has length 118 [2022-07-21 11:42:17,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:42:17,267 INFO L495 AbstractCegarLoop]: Abstraction has 6651 states and 10265 transitions. [2022-07-21 11:42:17,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (10), 5 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-07-21 11:42:17,267 INFO L276 IsEmpty]: Start isEmpty. Operand 6651 states and 10265 transitions. [2022-07-21 11:42:17,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2022-07-21 11:42:17,276 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:42:17,276 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2022-07-21 11:42:17,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-21 11:42:17,277 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:42:17,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:42:17,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1803068061, now seen corresponding path program 1 times [2022-07-21 11:42:17,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:42:17,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625303021] [2022-07-21 11:42:17,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:42:17,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:42:17,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:17,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:42:17,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:17,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:17,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:17,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:17,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:17,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:42:17,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:17,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:17,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:17,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:17,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:17,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:42:17,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:17,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:17,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:17,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:17,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:17,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:42:17,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:17,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:17,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:17,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:17,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:17,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:42:17,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:17,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:17,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:42:17,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:17,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:17,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:17,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 11:42:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:17,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-21 11:42:17,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:17,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-21 11:42:17,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:17,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-21 11:42:17,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:17,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-21 11:42:17,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:17,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-21 11:42:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:17,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:17,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:17,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 11:42:17,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:17,494 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2022-07-21 11:42:17,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:42:17,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625303021] [2022-07-21 11:42:17,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625303021] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:42:17,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:42:17,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 11:42:17,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210452146] [2022-07-21 11:42:17,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:42:17,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 11:42:17,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:42:17,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 11:42:17,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-21 11:42:17,496 INFO L87 Difference]: Start difference. First operand 6651 states and 10265 transitions. Second operand has 8 states, 8 states have (on average 11.125) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 7 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 11:42:32,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:42:32,653 INFO L93 Difference]: Finished difference Result 20731 states and 32417 transitions. [2022-07-21 11:42:32,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 11:42:32,654 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 7 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 180 [2022-07-21 11:42:32,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:42:32,732 INFO L225 Difference]: With dead ends: 20731 [2022-07-21 11:42:32,732 INFO L226 Difference]: Without dead ends: 14103 [2022-07-21 11:42:32,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2022-07-21 11:42:32,778 INFO L413 NwaCegarLoop]: 2385 mSDtfsCounter, 5855 mSDsluCounter, 4659 mSDsCounter, 0 mSdLazyCounter, 5965 mSolverCounterSat, 4015 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6171 SdHoareTripleChecker+Valid, 7044 SdHoareTripleChecker+Invalid, 9980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4015 IncrementalHoareTripleChecker+Valid, 5965 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2022-07-21 11:42:32,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6171 Valid, 7044 Invalid, 9980 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4015 Valid, 5965 Invalid, 0 Unknown, 0 Unchecked, 14.5s Time] [2022-07-21 11:42:32,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14103 states. [2022-07-21 11:42:33,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14103 to 13048. [2022-07-21 11:42:33,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13048 states, 9317 states have (on average 1.373296125362241) internal successors, (12795), 9803 states have internal predecessors, (12795), 2778 states have call successors, (2778), 677 states have call predecessors, (2778), 952 states have return successors, (4680), 2835 states have call predecessors, (4680), 2775 states have call successors, (4680) [2022-07-21 11:42:33,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13048 states to 13048 states and 20253 transitions. [2022-07-21 11:42:33,304 INFO L78 Accepts]: Start accepts. Automaton has 13048 states and 20253 transitions. Word has length 180 [2022-07-21 11:42:33,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:42:33,305 INFO L495 AbstractCegarLoop]: Abstraction has 13048 states and 20253 transitions. [2022-07-21 11:42:33,305 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.125) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 7 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2022-07-21 11:42:33,305 INFO L276 IsEmpty]: Start isEmpty. Operand 13048 states and 20253 transitions. [2022-07-21 11:42:33,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2022-07-21 11:42:33,335 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:42:33,335 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2022-07-21 11:42:33,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-21 11:42:33,335 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:42:33,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:42:33,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1751188627, now seen corresponding path program 1 times [2022-07-21 11:42:33,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:42:33,336 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193656699] [2022-07-21 11:42:33,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:42:33,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:42:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:42:33,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:33,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:33,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:42:33,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:33,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:33,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:42:33,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:42:33,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:33,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:33,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:42:33,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:33,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:42:33,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:33,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 11:42:33,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:33,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:33,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-07-21 11:42:33,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-07-21 11:42:33,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-21 11:42:33,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-07-21 11:42:33,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-07-21 11:42:33,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-21 11:42:33,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:33,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 11:42:33,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:33,645 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2022-07-21 11:42:33,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:42:33,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193656699] [2022-07-21 11:42:33,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193656699] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:42:33,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:42:33,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 11:42:33,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821858204] [2022-07-21 11:42:33,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:42:33,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 11:42:33,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:42:33,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 11:42:33,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-07-21 11:42:33,647 INFO L87 Difference]: Start difference. First operand 13048 states and 20253 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 11:42:47,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:42:47,151 INFO L93 Difference]: Finished difference Result 29913 states and 47391 transitions. [2022-07-21 11:42:47,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-21 11:42:47,152 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 219 [2022-07-21 11:42:47,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:42:47,267 INFO L225 Difference]: With dead ends: 29913 [2022-07-21 11:42:47,268 INFO L226 Difference]: Without dead ends: 16888 [2022-07-21 11:42:47,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2022-07-21 11:42:47,319 INFO L413 NwaCegarLoop]: 2470 mSDtfsCounter, 4979 mSDsluCounter, 5642 mSDsCounter, 0 mSdLazyCounter, 5166 mSolverCounterSat, 3061 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5262 SdHoareTripleChecker+Valid, 8112 SdHoareTripleChecker+Invalid, 8227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3061 IncrementalHoareTripleChecker+Valid, 5166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-07-21 11:42:47,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5262 Valid, 8112 Invalid, 8227 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3061 Valid, 5166 Invalid, 0 Unknown, 0 Unchecked, 12.7s Time] [2022-07-21 11:42:47,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16888 states. [2022-07-21 11:42:47,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16888 to 13062. [2022-07-21 11:42:47,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13062 states, 9331 states have (on average 1.3727360411531455) internal successors, (12809), 9817 states have internal predecessors, (12809), 2778 states have call successors, (2778), 677 states have call predecessors, (2778), 952 states have return successors, (4680), 2835 states have call predecessors, (4680), 2775 states have call successors, (4680) [2022-07-21 11:42:47,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13062 states to 13062 states and 20267 transitions. [2022-07-21 11:42:47,927 INFO L78 Accepts]: Start accepts. Automaton has 13062 states and 20267 transitions. Word has length 219 [2022-07-21 11:42:47,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:42:47,928 INFO L495 AbstractCegarLoop]: Abstraction has 13062 states and 20267 transitions. [2022-07-21 11:42:47,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (19), 7 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-21 11:42:47,928 INFO L276 IsEmpty]: Start isEmpty. Operand 13062 states and 20267 transitions. [2022-07-21 11:42:47,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-07-21 11:42:47,947 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:42:47,948 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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] [2022-07-21 11:42:47,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-21 11:42:47,948 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:42:47,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:42:47,948 INFO L85 PathProgramCache]: Analyzing trace with hash 478805099, now seen corresponding path program 1 times [2022-07-21 11:42:47,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:42:47,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342939468] [2022-07-21 11:42:47,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:42:47,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:42:48,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:48,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:42:48,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:48,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:48,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:48,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:48,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:48,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:42:48,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:48,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:48,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:48,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:48,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:48,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:42:48,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:48,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:48,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:48,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:48,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:48,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:42:48,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:48,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:48,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:48,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:48,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:48,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:42:48,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:48,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:48,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:48,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:42:48,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:48,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:48,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:48,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 11:42:48,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:48,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:48,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:48,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:48,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:48,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 11:42:48,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:48,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:48,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:48,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:42:48,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:48,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-21 11:42:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:48,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-21 11:42:48,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:48,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-21 11:42:48,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:48,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-21 11:42:48,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:48,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-21 11:42:48,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:48,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-21 11:42:48,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:48,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:42:48,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:48,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 11:42:48,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:42:48,226 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2022-07-21 11:42:48,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:42:48,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342939468] [2022-07-21 11:42:48,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1342939468] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:42:48,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:42:48,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 11:42:48,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532819551] [2022-07-21 11:42:48,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:42:48,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 11:42:48,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:42:48,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 11:42:48,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-07-21 11:42:48,229 INFO L87 Difference]: Start difference. First operand 13062 states and 20267 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 11:43:03,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:43:03,544 INFO L93 Difference]: Finished difference Result 40698 states and 63654 transitions. [2022-07-21 11:43:03,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 11:43:03,545 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 236 [2022-07-21 11:43:03,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:43:03,664 INFO L225 Difference]: With dead ends: 40698 [2022-07-21 11:43:03,665 INFO L226 Difference]: Without dead ends: 27620 [2022-07-21 11:43:03,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2022-07-21 11:43:03,715 INFO L413 NwaCegarLoop]: 3663 mSDtfsCounter, 4305 mSDsluCounter, 6546 mSDsCounter, 0 mSdLazyCounter, 6265 mSolverCounterSat, 3047 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4654 SdHoareTripleChecker+Valid, 10209 SdHoareTripleChecker+Invalid, 9312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3047 IncrementalHoareTripleChecker+Valid, 6265 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2022-07-21 11:43:03,715 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4654 Valid, 10209 Invalid, 9312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3047 Valid, 6265 Invalid, 0 Unknown, 0 Unchecked, 14.4s Time] [2022-07-21 11:43:03,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27620 states. [2022-07-21 11:43:04,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27620 to 25573. [2022-07-21 11:43:04,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25573 states, 18311 states have (on average 1.373436732019005) internal successors, (25149), 19249 states have internal predecessors, (25149), 5394 states have call successors, (5394), 1328 states have call predecessors, (5394), 1867 states have return successors, (9045), 5493 states have call predecessors, (9045), 5391 states have call successors, (9045) [2022-07-21 11:43:04,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25573 states to 25573 states and 39588 transitions. [2022-07-21 11:43:04,661 INFO L78 Accepts]: Start accepts. Automaton has 25573 states and 39588 transitions. Word has length 236 [2022-07-21 11:43:04,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:43:04,665 INFO L495 AbstractCegarLoop]: Abstraction has 25573 states and 39588 transitions. [2022-07-21 11:43:04,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (20), 7 states have call predecessors, (20), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-21 11:43:04,665 INFO L276 IsEmpty]: Start isEmpty. Operand 25573 states and 39588 transitions. [2022-07-21 11:43:04,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-07-21 11:43:04,720 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:43:04,720 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2022-07-21 11:43:04,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-21 11:43:04,720 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:43:04,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:43:04,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1468635353, now seen corresponding path program 1 times [2022-07-21 11:43:04,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:43:04,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288554915] [2022-07-21 11:43:04,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:43:04,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:43:04,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:43:04,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:04,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:43:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:04,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:04,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:43:04,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:04,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:04,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:43:04,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:04,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:43:04,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:04,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:43:04,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:04,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 11:43:04,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:04,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:04,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-21 11:43:04,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-21 11:43:04,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-21 11:43:04,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-21 11:43:04,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-21 11:43:04,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2022-07-21 11:43:04,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-21 11:43:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-07-21 11:43:04,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-21 11:43:04,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2022-07-21 11:43:04,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2022-07-21 11:43:04,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-21 11:43:04,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:04,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 11:43:04,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:04,966 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2022-07-21 11:43:04,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:43:04,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288554915] [2022-07-21 11:43:04,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288554915] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:43:04,966 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:43:04,966 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-07-21 11:43:04,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436554432] [2022-07-21 11:43:04,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:43:04,967 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-21 11:43:04,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:43:04,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-21 11:43:04,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-21 11:43:04,968 INFO L87 Difference]: Start difference. First operand 25573 states and 39588 transitions. Second operand has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (25), 8 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-21 11:43:12,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:43:12,330 INFO L93 Difference]: Finished difference Result 42900 states and 66420 transitions. [2022-07-21 11:43:12,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-21 11:43:12,331 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (25), 8 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 262 [2022-07-21 11:43:12,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:43:12,404 INFO L225 Difference]: With dead ends: 42900 [2022-07-21 11:43:12,404 INFO L226 Difference]: Without dead ends: 17358 [2022-07-21 11:43:12,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2022-07-21 11:43:12,488 INFO L413 NwaCegarLoop]: 2089 mSDtfsCounter, 4029 mSDsluCounter, 2740 mSDsCounter, 0 mSdLazyCounter, 3092 mSolverCounterSat, 3425 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4111 SdHoareTripleChecker+Valid, 4829 SdHoareTripleChecker+Invalid, 6517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3425 IncrementalHoareTripleChecker+Valid, 3092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-07-21 11:43:12,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4111 Valid, 4829 Invalid, 6517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3425 Valid, 3092 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2022-07-21 11:43:12,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17358 states. [2022-07-21 11:43:13,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17358 to 15880. [2022-07-21 11:43:13,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15880 states, 11353 states have (on average 1.370298599489122) internal successors, (15557), 11932 states have internal predecessors, (15557), 3355 states have call successors, (3355), 854 states have call predecessors, (3355), 1171 states have return successors, (5333), 3400 states have call predecessors, (5333), 3352 states have call successors, (5333) [2022-07-21 11:43:13,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15880 states to 15880 states and 24245 transitions. [2022-07-21 11:43:13,254 INFO L78 Accepts]: Start accepts. Automaton has 15880 states and 24245 transitions. Word has length 262 [2022-07-21 11:43:13,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:43:13,255 INFO L495 AbstractCegarLoop]: Abstraction has 15880 states and 24245 transitions. [2022-07-21 11:43:13,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 3 states have internal predecessors, (125), 2 states have call successors, (25), 8 states have call predecessors, (25), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-21 11:43:13,255 INFO L276 IsEmpty]: Start isEmpty. Operand 15880 states and 24245 transitions. [2022-07-21 11:43:13,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2022-07-21 11:43:13,293 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:43:13,293 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:43:13,293 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-21 11:43:13,294 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:43:13,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:43:13,294 INFO L85 PathProgramCache]: Analyzing trace with hash -608382317, now seen corresponding path program 1 times [2022-07-21 11:43:13,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:43:13,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510321296] [2022-07-21 11:43:13,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:43:13,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:43:13,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:43:13,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:13,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:13,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:43:13,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:13,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:13,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:43:13,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:13,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:13,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:43:13,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:13,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:13,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:43:13,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:13,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:43:13,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2022-07-21 11:43:13,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:43:13,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:13,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 11:43:13,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-21 11:43:13,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 11:43:13,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 11:43:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:13,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 11:43:13,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 11:43:13,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 11:43:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:13,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:13,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 11:43:13,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 11:43:13,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 11:43:13,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 11:43:13,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 11:43:13,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-21 11:43:13,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:13,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 11:43:13,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 11:43:13,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:13,785 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-21 11:43:13,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:43:13,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510321296] [2022-07-21 11:43:13,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510321296] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:43:13,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:43:13,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-21 11:43:13,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85769414] [2022-07-21 11:43:13,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:43:13,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-21 11:43:13,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:43:13,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-21 11:43:13,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-07-21 11:43:13,788 INFO L87 Difference]: Start difference. First operand 15880 states and 24245 transitions. Second operand has 14 states, 14 states have (on average 11.857142857142858) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (33), 11 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-21 11:43:21,901 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 [] [2022-07-21 11:43:29,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:43:29,070 INFO L93 Difference]: Finished difference Result 36028 states and 56065 transitions. [2022-07-21 11:43:29,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 11:43:29,071 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.857142857142858) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (33), 11 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 284 [2022-07-21 11:43:29,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:43:29,158 INFO L225 Difference]: With dead ends: 36028 [2022-07-21 11:43:29,159 INFO L226 Difference]: Without dead ends: 20181 [2022-07-21 11:43:29,208 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2022-07-21 11:43:29,209 INFO L413 NwaCegarLoop]: 1957 mSDtfsCounter, 6249 mSDsluCounter, 5092 mSDsCounter, 0 mSdLazyCounter, 7153 mSolverCounterSat, 4844 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6524 SdHoareTripleChecker+Valid, 7049 SdHoareTripleChecker+Invalid, 11997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4844 IncrementalHoareTripleChecker+Valid, 7153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2022-07-21 11:43:29,209 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6524 Valid, 7049 Invalid, 11997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4844 Valid, 7153 Invalid, 0 Unknown, 0 Unchecked, 14.0s Time] [2022-07-21 11:43:29,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20181 states. [2022-07-21 11:43:30,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20181 to 18230. [2022-07-21 11:43:30,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18230 states, 12958 states have (on average 1.3722796727890108) internal successors, (17782), 13657 states have internal predecessors, (17782), 3975 states have call successors, (3975), 854 states have call predecessors, (3975), 1296 states have return successors, (6613), 4105 states have call predecessors, (6613), 3972 states have call successors, (6613) [2022-07-21 11:43:30,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18230 states to 18230 states and 28370 transitions. [2022-07-21 11:43:30,354 INFO L78 Accepts]: Start accepts. Automaton has 18230 states and 28370 transitions. Word has length 284 [2022-07-21 11:43:30,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:43:30,355 INFO L495 AbstractCegarLoop]: Abstraction has 18230 states and 28370 transitions. [2022-07-21 11:43:30,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.857142857142858) internal successors, (166), 5 states have internal predecessors, (166), 2 states have call successors, (33), 11 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-21 11:43:30,355 INFO L276 IsEmpty]: Start isEmpty. Operand 18230 states and 28370 transitions. [2022-07-21 11:43:30,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2022-07-21 11:43:30,402 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:43:30,402 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:43:30,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-21 11:43:30,403 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:43:30,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:43:30,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1656549359, now seen corresponding path program 1 times [2022-07-21 11:43:30,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:43:30,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968567823] [2022-07-21 11:43:30,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:43:30,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:43:30,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:43:30,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:30,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:43:30,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:30,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:43:30,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:30,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:30,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:43:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:30,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:30,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:43:30,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:30,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:43:30,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:30,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2022-07-21 11:43:30,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:43:30,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:30,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 11:43:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-21 11:43:30,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 11:43:30,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 11:43:30,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 11:43:30,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 11:43:30,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 11:43:30,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:30,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:30,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 11:43:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 11:43:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 11:43:30,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 11:43:30,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 11:43:30,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-21 11:43:30,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:30,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:30,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 11:43:30,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 11:43:30,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:30,918 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-21 11:43:30,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:43:30,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968567823] [2022-07-21 11:43:30,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968567823] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:43:30,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:43:30,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-21 11:43:30,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248779680] [2022-07-21 11:43:30,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:43:30,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-21 11:43:30,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:43:30,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-21 11:43:30,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-07-21 11:43:30,921 INFO L87 Difference]: Start difference. First operand 18230 states and 28370 transitions. Second operand has 14 states, 14 states have (on average 11.642857142857142) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (33), 11 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-21 11:43:46,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:43:46,986 INFO L93 Difference]: Finished difference Result 38358 states and 60097 transitions. [2022-07-21 11:43:46,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 11:43:46,986 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.642857142857142) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (33), 11 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 281 [2022-07-21 11:43:46,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:43:47,090 INFO L225 Difference]: With dead ends: 38358 [2022-07-21 11:43:47,091 INFO L226 Difference]: Without dead ends: 20161 [2022-07-21 11:43:47,157 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2022-07-21 11:43:47,158 INFO L413 NwaCegarLoop]: 1952 mSDtfsCounter, 7524 mSDsluCounter, 4540 mSDsCounter, 0 mSdLazyCounter, 6025 mSolverCounterSat, 5774 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7795 SdHoareTripleChecker+Valid, 6492 SdHoareTripleChecker+Invalid, 11799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5774 IncrementalHoareTripleChecker+Valid, 6025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2022-07-21 11:43:47,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7795 Valid, 6492 Invalid, 11799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5774 Valid, 6025 Invalid, 0 Unknown, 0 Unchecked, 14.6s Time] [2022-07-21 11:43:47,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20161 states. [2022-07-21 11:43:48,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20161 to 18210. [2022-07-21 11:43:48,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18210 states, 12948 states have (on average 1.3717948717948718) internal successors, (17762), 13647 states have internal predecessors, (17762), 3965 states have call successors, (3965), 854 states have call predecessors, (3965), 1296 states have return successors, (6550), 4095 states have call predecessors, (6550), 3962 states have call successors, (6550) [2022-07-21 11:43:48,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18210 states to 18210 states and 28277 transitions. [2022-07-21 11:43:48,195 INFO L78 Accepts]: Start accepts. Automaton has 18210 states and 28277 transitions. Word has length 281 [2022-07-21 11:43:48,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:43:48,196 INFO L495 AbstractCegarLoop]: Abstraction has 18210 states and 28277 transitions. [2022-07-21 11:43:48,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.642857142857142) internal successors, (163), 5 states have internal predecessors, (163), 2 states have call successors, (33), 11 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-21 11:43:48,196 INFO L276 IsEmpty]: Start isEmpty. Operand 18210 states and 28277 transitions. [2022-07-21 11:43:48,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2022-07-21 11:43:48,226 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:43:48,226 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:43:48,226 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-21 11:43:48,226 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:43:48,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:43:48,227 INFO L85 PathProgramCache]: Analyzing trace with hash -262441294, now seen corresponding path program 1 times [2022-07-21 11:43:48,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:43:48,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918971352] [2022-07-21 11:43:48,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:43:48,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:43:48,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:43:48,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:48,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:48,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:43:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:48,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:48,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:43:48,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:48,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:48,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:43:48,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:48,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:48,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:43:48,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:48,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:43:48,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:48,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-21 11:43:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:43:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:43:48,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 11:43:48,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-21 11:43:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 11:43:48,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 11:43:48,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:48,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 11:43:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 11:43:48,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 11:43:48,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 11:43:48,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 11:43:48,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 11:43:48,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 11:43:48,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 11:43:48,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-21 11:43:48,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:48,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:43:48,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 11:43:48,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 11:43:48,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:43:48,666 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-21 11:43:48,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:43:48,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918971352] [2022-07-21 11:43:48,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918971352] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:43:48,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:43:48,667 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-21 11:43:48,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870429790] [2022-07-21 11:43:48,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:43:48,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-21 11:43:48,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:43:48,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-21 11:43:48,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-07-21 11:43:48,669 INFO L87 Difference]: Start difference. First operand 18210 states and 28277 transitions. Second operand has 14 states, 14 states have (on average 11.714285714285714) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (33), 11 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-21 11:43:55,736 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-21 11:44:04,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:44:04,845 INFO L93 Difference]: Finished difference Result 38318 states and 59911 transitions. [2022-07-21 11:44:04,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 11:44:04,846 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.714285714285714) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (33), 11 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 282 [2022-07-21 11:44:04,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:44:04,938 INFO L225 Difference]: With dead ends: 38318 [2022-07-21 11:44:04,938 INFO L226 Difference]: Without dead ends: 20141 [2022-07-21 11:44:05,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2022-07-21 11:44:05,000 INFO L413 NwaCegarLoop]: 1966 mSDtfsCounter, 5195 mSDsluCounter, 4588 mSDsCounter, 0 mSdLazyCounter, 6342 mSolverCounterSat, 3068 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5460 SdHoareTripleChecker+Valid, 6554 SdHoareTripleChecker+Invalid, 9410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3068 IncrementalHoareTripleChecker+Valid, 6342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.7s IncrementalHoareTripleChecker+Time [2022-07-21 11:44:05,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5460 Valid, 6554 Invalid, 9410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3068 Valid, 6342 Invalid, 0 Unknown, 0 Unchecked, 14.7s Time] [2022-07-21 11:44:05,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20141 states. [2022-07-21 11:44:05,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20141 to 18190. [2022-07-21 11:44:05,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18190 states, 12938 states have (on average 1.3713093213788838) internal successors, (17742), 13637 states have internal predecessors, (17742), 3955 states have call successors, (3955), 854 states have call predecessors, (3955), 1296 states have return successors, (6487), 4085 states have call predecessors, (6487), 3952 states have call successors, (6487) [2022-07-21 11:44:06,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18190 states to 18190 states and 28184 transitions. [2022-07-21 11:44:06,067 INFO L78 Accepts]: Start accepts. Automaton has 18190 states and 28184 transitions. Word has length 282 [2022-07-21 11:44:06,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:44:06,068 INFO L495 AbstractCegarLoop]: Abstraction has 18190 states and 28184 transitions. [2022-07-21 11:44:06,068 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.714285714285714) internal successors, (164), 5 states have internal predecessors, (164), 2 states have call successors, (33), 11 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-21 11:44:06,068 INFO L276 IsEmpty]: Start isEmpty. Operand 18190 states and 28184 transitions. [2022-07-21 11:44:06,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2022-07-21 11:44:06,102 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:44:06,102 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 11:44:06,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-21 11:44:06,103 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:44:06,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:44:06,103 INFO L85 PathProgramCache]: Analyzing trace with hash -915565550, now seen corresponding path program 1 times [2022-07-21 11:44:06,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:44:06,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703607411] [2022-07-21 11:44:06,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:44:06,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:44:06,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:44:06,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:06,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:06,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:44:06,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:06,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:06,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:44:06,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:06,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:06,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:44:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:06,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:06,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:44:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:06,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:44:06,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-21 11:44:06,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:44:06,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 11:44:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-07-21 11:44:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-21 11:44:06,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2022-07-21 11:44:06,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:06,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-21 11:44:06,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-07-21 11:44:06,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-07-21 11:44:06,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:06,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:06,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 11:44:06,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-07-21 11:44:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-21 11:44:06,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-07-21 11:44:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-21 11:44:06,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-21 11:44:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:06,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:06,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 11:44:06,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-21 11:44:06,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:06,620 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-07-21 11:44:06,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:44:06,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703607411] [2022-07-21 11:44:06,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703607411] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:44:06,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:44:06,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-07-21 11:44:06,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415645395] [2022-07-21 11:44:06,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:44:06,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-07-21 11:44:06,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:44:06,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-07-21 11:44:06,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-07-21 11:44:06,622 INFO L87 Difference]: Start difference. First operand 18190 states and 28184 transitions. Second operand has 14 states, 14 states have (on average 11.785714285714286) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (33), 11 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-21 11:44:20,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:44:20,816 INFO L93 Difference]: Finished difference Result 38278 states and 59725 transitions. [2022-07-21 11:44:20,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 11:44:20,817 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 11.785714285714286) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (33), 11 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 283 [2022-07-21 11:44:20,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:44:20,895 INFO L225 Difference]: With dead ends: 38278 [2022-07-21 11:44:20,895 INFO L226 Difference]: Without dead ends: 20121 [2022-07-21 11:44:20,942 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=124, Invalid=338, Unknown=0, NotChecked=0, Total=462 [2022-07-21 11:44:20,942 INFO L413 NwaCegarLoop]: 1961 mSDtfsCounter, 5696 mSDsluCounter, 3659 mSDsCounter, 0 mSdLazyCounter, 5246 mSolverCounterSat, 3352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5962 SdHoareTripleChecker+Valid, 5620 SdHoareTripleChecker+Invalid, 8598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3352 IncrementalHoareTripleChecker+Valid, 5246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2022-07-21 11:44:20,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5962 Valid, 5620 Invalid, 8598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3352 Valid, 5246 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time] [2022-07-21 11:44:20,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20121 states. [2022-07-21 11:44:21,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20121 to 18170. [2022-07-21 11:44:21,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18170 states, 12928 states have (on average 1.3708230198019802) internal successors, (17722), 13627 states have internal predecessors, (17722), 3945 states have call successors, (3945), 854 states have call predecessors, (3945), 1296 states have return successors, (6424), 4075 states have call predecessors, (6424), 3942 states have call successors, (6424) [2022-07-21 11:44:21,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18170 states to 18170 states and 28091 transitions. [2022-07-21 11:44:21,989 INFO L78 Accepts]: Start accepts. Automaton has 18170 states and 28091 transitions. Word has length 283 [2022-07-21 11:44:21,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:44:21,990 INFO L495 AbstractCegarLoop]: Abstraction has 18170 states and 28091 transitions. [2022-07-21 11:44:21,990 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 11.785714285714286) internal successors, (165), 5 states have internal predecessors, (165), 2 states have call successors, (33), 11 states have call predecessors, (33), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-21 11:44:21,990 INFO L276 IsEmpty]: Start isEmpty. Operand 18170 states and 28091 transitions. [2022-07-21 11:44:22,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2022-07-21 11:44:22,016 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:44:22,017 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-21 11:44:22,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-07-21 11:44:22,017 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:44:22,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:44:22,017 INFO L85 PathProgramCache]: Analyzing trace with hash -797168638, now seen corresponding path program 1 times [2022-07-21 11:44:22,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:44:22,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828170670] [2022-07-21 11:44:22,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:44:22,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:44:22,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:44:22,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:22,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:44:22,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:22,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:22,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:44:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:22,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:22,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:44:22,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:22,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:22,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:44:22,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:22,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:44:22,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 11:44:22,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:22,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 11:44:22,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:22,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:22,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-21 11:44:22,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-21 11:44:22,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-21 11:44:22,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-21 11:44:22,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-21 11:44:22,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-21 11:44:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:22,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 11:44:22,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-07-21 11:44:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-07-21 11:44:22,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-07-21 11:44:22,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-21 11:44:22,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-21 11:44:22,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-21 11:44:22,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-07-21 11:44:22,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-21 11:44:22,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-07-21 11:44:22,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-21 11:44:22,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2022-07-21 11:44:22,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-07-21 11:44:22,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:22,347 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2022-07-21 11:44:22,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:44:22,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828170670] [2022-07-21 11:44:22,347 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828170670] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 11:44:22,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [840313825] [2022-07-21 11:44:22,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:44:22,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 11:44:22,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 11:44:22,349 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) [2022-07-21 11:44:22,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 11:44:23,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:23,166 INFO L263 TraceCheckSpWp]: Trace formula consists of 3019 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-21 11:44:23,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:44:23,241 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2022-07-21 11:44:23,244 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:44:23,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [840313825] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:44:23,244 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 11:44:23,244 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2022-07-21 11:44:23,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790390625] [2022-07-21 11:44:23,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:44:23,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 11:44:23,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:44:23,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 11:44:23,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2022-07-21 11:44:23,249 INFO L87 Difference]: Start difference. First operand 18170 states and 28091 transitions. Second operand has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-21 11:44:25,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:44:25,655 INFO L93 Difference]: Finished difference Result 46938 states and 73143 transitions. [2022-07-21 11:44:25,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 11:44:25,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 311 [2022-07-21 11:44:25,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:44:25,794 INFO L225 Difference]: With dead ends: 46938 [2022-07-21 11:44:25,794 INFO L226 Difference]: Without dead ends: 32590 [2022-07-21 11:44:25,846 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2022-07-21 11:44:25,847 INFO L413 NwaCegarLoop]: 4495 mSDtfsCounter, 2969 mSDsluCounter, 10476 mSDsCounter, 0 mSdLazyCounter, 145 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2987 SdHoareTripleChecker+Valid, 14971 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 145 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-21 11:44:25,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2987 Valid, 14971 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 145 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-21 11:44:25,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32590 states. [2022-07-21 11:44:27,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32590 to 32531. [2022-07-21 11:44:27,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32531 states, 23151 states have (on average 1.3720789598721437) internal successors, (31765), 24425 states have internal predecessors, (31765), 7079 states have call successors, (7079), 1498 states have call predecessors, (7079), 2300 states have return successors, (11761), 7296 states have call predecessors, (11761), 7076 states have call successors, (11761) [2022-07-21 11:44:27,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32531 states to 32531 states and 50605 transitions. [2022-07-21 11:44:27,645 INFO L78 Accepts]: Start accepts. Automaton has 32531 states and 50605 transitions. Word has length 311 [2022-07-21 11:44:27,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:44:27,646 INFO L495 AbstractCegarLoop]: Abstraction has 32531 states and 50605 transitions. [2022-07-21 11:44:27,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 25.0) internal successors, (125), 5 states have internal predecessors, (125), 2 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-21 11:44:27,646 INFO L276 IsEmpty]: Start isEmpty. Operand 32531 states and 50605 transitions. [2022-07-21 11:44:27,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2022-07-21 11:44:27,677 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:44:27,677 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-21 11:44:27,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-21 11:44:27,898 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-07-21 11:44:27,899 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:44:27,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:44:27,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1591395392, now seen corresponding path program 1 times [2022-07-21 11:44:27,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:44:27,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373772899] [2022-07-21 11:44:27,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:44:27,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:44:28,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:44:28,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:28,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:28,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:44:28,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:44:28,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:28,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:28,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:44:28,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:28,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:28,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:44:28,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:28,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:44:28,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:28,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 11:44:28,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:28,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:28,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 11:44:28,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:28,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:28,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-21 11:44:28,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-21 11:44:28,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-21 11:44:28,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-07-21 11:44:28,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-21 11:44:28,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-21 11:44:28,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:28,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 11:44:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2022-07-21 11:44:28,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-07-21 11:44:28,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-07-21 11:44:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2022-07-21 11:44:28,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-21 11:44:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-21 11:44:28,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-07-21 11:44:28,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 271 [2022-07-21 11:44:28,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2022-07-21 11:44:28,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2022-07-21 11:44:28,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2022-07-21 11:44:28,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 297 [2022-07-21 11:44:28,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:28,293 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2022-07-21 11:44:28,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:44:28,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373772899] [2022-07-21 11:44:28,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373772899] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 11:44:28,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1641842830] [2022-07-21 11:44:28,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:44:28,294 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 11:44:28,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 11:44:28,295 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 11:44:28,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-21 11:44:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:29,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 3014 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-21 11:44:29,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:44:29,686 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 358 trivial. 0 not checked. [2022-07-21 11:44:29,686 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:44:29,686 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1641842830] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:44:29,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 11:44:29,687 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 15 [2022-07-21 11:44:29,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952871069] [2022-07-21 11:44:29,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:44:29,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 11:44:29,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:44:29,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 11:44:29,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-07-21 11:44:29,688 INFO L87 Difference]: Start difference. First operand 32531 states and 50605 transitions. Second operand has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 4 states have internal predecessors, (128), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-21 11:44:33,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:44:33,620 INFO L93 Difference]: Finished difference Result 61271 states and 95641 transitions. [2022-07-21 11:44:33,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 11:44:33,621 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 4 states have internal predecessors, (128), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) Word has length 311 [2022-07-21 11:44:33,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:44:33,749 INFO L225 Difference]: With dead ends: 61271 [2022-07-21 11:44:33,749 INFO L226 Difference]: Without dead ends: 32554 [2022-07-21 11:44:33,829 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2022-07-21 11:44:33,830 INFO L413 NwaCegarLoop]: 3015 mSDtfsCounter, 2347 mSDsluCounter, 8263 mSDsCounter, 0 mSdLazyCounter, 2474 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2351 SdHoareTripleChecker+Valid, 11278 SdHoareTripleChecker+Invalid, 2476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 2474 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-21 11:44:33,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2351 Valid, 11278 Invalid, 2476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 2474 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-21 11:44:33,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32554 states. [2022-07-21 11:44:35,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32554 to 32539. [2022-07-21 11:44:35,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32539 states, 23155 states have (on average 1.3720146836536384) internal successors, (31769), 24433 states have internal predecessors, (31769), 7079 states have call successors, (7079), 1498 states have call predecessors, (7079), 2304 states have return successors, (11773), 7296 states have call predecessors, (11773), 7076 states have call successors, (11773) [2022-07-21 11:44:35,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32539 states to 32539 states and 50621 transitions. [2022-07-21 11:44:35,719 INFO L78 Accepts]: Start accepts. Automaton has 32539 states and 50621 transitions. Word has length 311 [2022-07-21 11:44:35,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:44:35,719 INFO L495 AbstractCegarLoop]: Abstraction has 32539 states and 50621 transitions. [2022-07-21 11:44:35,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 21.333333333333332) internal successors, (128), 4 states have internal predecessors, (128), 2 states have call successors, (32), 2 states have call predecessors, (32), 3 states have return successors, (31), 3 states have call predecessors, (31), 2 states have call successors, (31) [2022-07-21 11:44:35,720 INFO L276 IsEmpty]: Start isEmpty. Operand 32539 states and 50621 transitions. [2022-07-21 11:44:35,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-07-21 11:44:35,750 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:44:35,750 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-21 11:44:35,774 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-21 11:44:35,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-21 11:44:35,963 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:44:35,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:44:35,963 INFO L85 PathProgramCache]: Analyzing trace with hash -243344327, now seen corresponding path program 1 times [2022-07-21 11:44:35,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:44:35,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095480548] [2022-07-21 11:44:35,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:44:35,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:44:36,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:44:36,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:36,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:36,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:44:36,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:36,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:36,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:44:36,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:36,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:36,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:44:36,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:36,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:36,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:44:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:36,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:44:36,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:36,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 11:44:36,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:36,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:36,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 11:44:36,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:36,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:36,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-21 11:44:36,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:44:36,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-21 11:44:36,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-21 11:44:36,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-21 11:44:36,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-21 11:44:36,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-21 11:44:36,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:36,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 11:44:36,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2022-07-21 11:44:36,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2022-07-21 11:44:36,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-21 11:44:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2022-07-21 11:44:36,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-21 11:44:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2022-07-21 11:44:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-21 11:44:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2022-07-21 11:44:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2022-07-21 11:44:36,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-07-21 11:44:36,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2022-07-21 11:44:36,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-07-21 11:44:36,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:36,449 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 384 trivial. 0 not checked. [2022-07-21 11:44:36,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:44:36,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095480548] [2022-07-21 11:44:36,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095480548] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:44:36,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 11:44:36,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-07-21 11:44:36,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067350096] [2022-07-21 11:44:36,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:44:36,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-21 11:44:36,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:44:36,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-21 11:44:36,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-07-21 11:44:36,451 INFO L87 Difference]: Start difference. First operand 32539 states and 50621 transitions. Second operand has 11 states, 11 states have (on average 11.636363636363637) internal successors, (128), 4 states have internal predecessors, (128), 3 states have call successors, (33), 8 states have call predecessors, (33), 3 states have return successors, (32), 4 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-21 11:44:51,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:44:51,422 INFO L93 Difference]: Finished difference Result 67906 states and 108247 transitions. [2022-07-21 11:44:51,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 11:44:51,425 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.636363636363637) internal successors, (128), 4 states have internal predecessors, (128), 3 states have call successors, (33), 8 states have call predecessors, (33), 3 states have return successors, (32), 4 states have call predecessors, (32), 3 states have call successors, (32) Word has length 317 [2022-07-21 11:44:51,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:44:51,580 INFO L225 Difference]: With dead ends: 67906 [2022-07-21 11:44:51,580 INFO L226 Difference]: Without dead ends: 35400 [2022-07-21 11:44:51,694 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=92, Invalid=214, Unknown=0, NotChecked=0, Total=306 [2022-07-21 11:44:51,694 INFO L413 NwaCegarLoop]: 2086 mSDtfsCounter, 2623 mSDsluCounter, 6482 mSDsCounter, 0 mSdLazyCounter, 7059 mSolverCounterSat, 2172 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2704 SdHoareTripleChecker+Valid, 8568 SdHoareTripleChecker+Invalid, 9231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2172 IncrementalHoareTripleChecker+Valid, 7059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2022-07-21 11:44:51,694 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2704 Valid, 8568 Invalid, 9231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2172 Valid, 7059 Invalid, 0 Unknown, 0 Unchecked, 12.2s Time] [2022-07-21 11:44:51,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35400 states. [2022-07-21 11:44:53,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35400 to 32657. [2022-07-21 11:44:53,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32657 states, 23241 states have (on average 1.3714125898197151) internal successors, (31873), 24515 states have internal predecessors, (31873), 7097 states have call successors, (7097), 1498 states have call predecessors, (7097), 2318 states have return successors, (11827), 7332 states have call predecessors, (11827), 7094 states have call successors, (11827) [2022-07-21 11:44:53,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32657 states to 32657 states and 50797 transitions. [2022-07-21 11:44:53,722 INFO L78 Accepts]: Start accepts. Automaton has 32657 states and 50797 transitions. Word has length 317 [2022-07-21 11:44:53,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:44:53,723 INFO L495 AbstractCegarLoop]: Abstraction has 32657 states and 50797 transitions. [2022-07-21 11:44:53,723 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.636363636363637) internal successors, (128), 4 states have internal predecessors, (128), 3 states have call successors, (33), 8 states have call predecessors, (33), 3 states have return successors, (32), 4 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-21 11:44:53,724 INFO L276 IsEmpty]: Start isEmpty. Operand 32657 states and 50797 transitions. [2022-07-21 11:44:53,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2022-07-21 11:44:53,754 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:44:53,754 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-21 11:44:53,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-07-21 11:44:53,754 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:44:53,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:44:53,755 INFO L85 PathProgramCache]: Analyzing trace with hash -2000896182, now seen corresponding path program 1 times [2022-07-21 11:44:53,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:44:53,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808531370] [2022-07-21 11:44:53,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:44:53,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:44:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:53,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:44:53,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:53,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:53,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:53,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:53,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:44:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:53,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:53,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:53,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:53,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:53,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:44:53,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:53,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:53,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:53,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:53,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:53,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:44:53,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:53,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:53,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:53,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:53,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:53,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:44:53,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:53,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:53,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:53,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-21 11:44:53,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:53,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:53,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:53,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-21 11:44:53,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:53,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:53,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:53,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:53,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:53,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2022-07-21 11:44:53,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:53,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:53,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:53,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:44:53,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:53,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-21 11:44:53,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:53,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:44:53,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:53,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-21 11:44:53,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:53,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-07-21 11:44:53,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:53,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-21 11:44:53,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:53,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-21 11:44:53,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:54,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-21 11:44:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:54,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:44:54,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:54,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 11:44:54,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:54,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-21 11:44:54,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:54,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2022-07-21 11:44:54,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:54,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-07-21 11:44:54,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:54,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2022-07-21 11:44:54,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:54,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-07-21 11:44:54,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:54,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-07-21 11:44:54,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:54,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 272 [2022-07-21 11:44:54,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:54,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-07-21 11:44:54,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:54,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2022-07-21 11:44:54,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:54,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-07-21 11:44:54,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:54,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-07-21 11:44:54,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:54,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-21 11:44:54,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:54,088 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2022-07-21 11:44:54,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:44:54,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808531370] [2022-07-21 11:44:54,088 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808531370] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 11:44:54,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640380101] [2022-07-21 11:44:54,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:44:54,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 11:44:54,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 11:44:54,089 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 11:44:54,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-21 11:44:54,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:44:54,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 3038 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-21 11:44:54,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:44:55,184 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-07-21 11:44:55,185 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 11:44:55,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640380101] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 11:44:55,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 11:44:55,185 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [12] total 17 [2022-07-21 11:44:55,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923844044] [2022-07-21 11:44:55,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 11:44:55,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-21 11:44:55,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:44:55,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-21 11:44:55,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2022-07-21 11:44:55,187 INFO L87 Difference]: Start difference. First operand 32657 states and 50797 transitions. Second operand has 7 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 3 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-07-21 11:44:59,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 11:44:59,673 INFO L93 Difference]: Finished difference Result 65328 states and 101644 transitions. [2022-07-21 11:44:59,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-21 11:44:59,674 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 3 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 317 [2022-07-21 11:44:59,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 11:44:59,796 INFO L225 Difference]: With dead ends: 65328 [2022-07-21 11:44:59,797 INFO L226 Difference]: Without dead ends: 32690 [2022-07-21 11:44:59,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2022-07-21 11:44:59,885 INFO L413 NwaCegarLoop]: 3001 mSDtfsCounter, 2400 mSDsluCounter, 9286 mSDsCounter, 0 mSdLazyCounter, 3286 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2408 SdHoareTripleChecker+Valid, 12287 SdHoareTripleChecker+Invalid, 3289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 3286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-21 11:44:59,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2408 Valid, 12287 Invalid, 3289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 3286 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-21 11:44:59,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32690 states. [2022-07-21 11:45:01,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32690 to 32660. [2022-07-21 11:45:01,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32660 states, 23243 states have (on average 1.371423654433593) internal successors, (31876), 24518 states have internal predecessors, (31876), 7097 states have call successors, (7097), 1498 states have call predecessors, (7097), 2319 states have return successors, (11831), 7332 states have call predecessors, (11831), 7094 states have call successors, (11831) [2022-07-21 11:45:01,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32660 states to 32660 states and 50804 transitions. [2022-07-21 11:45:02,006 INFO L78 Accepts]: Start accepts. Automaton has 32660 states and 50804 transitions. Word has length 317 [2022-07-21 11:45:02,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 11:45:02,006 INFO L495 AbstractCegarLoop]: Abstraction has 32660 states and 50804 transitions. [2022-07-21 11:45:02,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 22.0) internal successors, (132), 6 states have internal predecessors, (132), 3 states have call successors, (36), 2 states have call predecessors, (36), 4 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-07-21 11:45:02,007 INFO L276 IsEmpty]: Start isEmpty. Operand 32660 states and 50804 transitions. [2022-07-21 11:45:02,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2022-07-21 11:45:02,037 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 11:45:02,037 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-21 11:45:02,060 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-07-21 11:45:02,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-21 11:45:02,261 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 11:45:02,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 11:45:02,261 INFO L85 PathProgramCache]: Analyzing trace with hash -804073126, now seen corresponding path program 1 times [2022-07-21 11:45:02,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 11:45:02,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884706184] [2022-07-21 11:45:02,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:45:02,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 11:45:02,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:45:02,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:45:02,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:45:02,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-21 11:45:02,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:45:02,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:45:02,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 11:45:02,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:45:02,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:45:02,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-21 11:45:02,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:45:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:45:02,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-21 11:45:02,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:45:02,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-21 11:45:02,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:45:02,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-21 11:45:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:45:02,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:45:02,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-21 11:45:02,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:45:02,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 11:45:02,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-21 11:45:02,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 11:45:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2022-07-21 11:45:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-21 11:45:02,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-07-21 11:45:02,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-07-21 11:45:02,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-21 11:45:02,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-21 11:45:02,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-21 11:45:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-21 11:45:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2022-07-21 11:45:02,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-21 11:45:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-07-21 11:45:02,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-21 11:45:02,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-21 11:45:02,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-07-21 11:45:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2022-07-21 11:45:02,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-21 11:45:02,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2022-07-21 11:45:02,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2022-07-21 11:45:02,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-07-21 11:45:02,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:02,629 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2022-07-21 11:45:02,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 11:45:02,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884706184] [2022-07-21 11:45:02,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884706184] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 11:45:02,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348649459] [2022-07-21 11:45:02,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 11:45:02,630 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 11:45:02,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 11:45:02,631 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 11:45:02,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-21 11:45:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 11:45:03,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 3068 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-21 11:45:03,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 11:45:04,051 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 140 proven. 1 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2022-07-21 11:45:04,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 11:45:04,425 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2022-07-21 11:45:04,426 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348649459] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 11:45:04,426 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-21 11:45:04,426 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 7] total 19 [2022-07-21 11:45:04,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038436775] [2022-07-21 11:45:04,426 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-21 11:45:04,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-21 11:45:04,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 11:45:04,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-21 11:45:04,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2022-07-21 11:45:04,428 INFO L87 Difference]: Start difference. First operand 32660 states and 50804 transitions. Second operand has 19 states, 17 states have (on average 10.823529411764707) internal successors, (184), 13 states have internal predecessors, (184), 4 states have call successors, (82), 8 states have call predecessors, (82), 6 states have return successors, (63), 4 states have call predecessors, (63), 4 states have call successors, (63)