./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 7918e78c7fa8e57a6cd382ed800c3c73f2f498c616ea3e9ed6a8775509cf80ff --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-20 01:23:18,784 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-20 01:23:18,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-20 01:23:18,824 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-20 01:23:18,825 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-20 01:23:18,826 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-20 01:23:18,827 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-20 01:23:18,829 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-20 01:23:18,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-20 01:23:18,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-20 01:23:18,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-20 01:23:18,836 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-20 01:23:18,836 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-20 01:23:18,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-20 01:23:18,839 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-20 01:23:18,841 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-20 01:23:18,842 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-20 01:23:18,843 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-20 01:23:18,844 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-20 01:23:18,848 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-20 01:23:18,850 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-20 01:23:18,850 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-20 01:23:18,851 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-20 01:23:18,852 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-20 01:23:18,853 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-20 01:23:18,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-20 01:23:18,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-20 01:23:18,858 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-20 01:23:18,859 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-20 01:23:18,860 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-20 01:23:18,860 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-20 01:23:18,861 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-20 01:23:18,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-20 01:23:18,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-20 01:23:18,863 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-20 01:23:18,864 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-20 01:23:18,864 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-20 01:23:18,865 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-20 01:23:18,865 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-20 01:23:18,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-20 01:23:18,866 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-20 01:23:18,867 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-20 01:23:18,868 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-20 01:23:18,891 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-20 01:23:18,891 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-20 01:23:18,892 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-20 01:23:18,892 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-20 01:23:18,892 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-20 01:23:18,892 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-20 01:23:18,893 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-20 01:23:18,893 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-20 01:23:18,893 INFO L138 SettingsManager]: * Use SBE=true [2022-07-20 01:23:18,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-20 01:23:18,894 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-20 01:23:18,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-20 01:23:18,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-20 01:23:18,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-20 01:23:18,895 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-20 01:23:18,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-20 01:23:18,895 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-20 01:23:18,895 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-20 01:23:18,895 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-20 01:23:18,895 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-20 01:23:18,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-20 01:23:18,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 01:23:18,897 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-20 01:23:18,897 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-20 01:23:18,897 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-20 01:23:18,897 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-20 01:23:18,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-20 01:23:18,897 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-20 01:23:18,898 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-20 01:23:18,898 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-20 01:23:18,898 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7918e78c7fa8e57a6cd382ed800c3c73f2f498c616ea3e9ed6a8775509cf80ff [2022-07-20 01:23:19,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-20 01:23:19,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-20 01:23:19,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-20 01:23:19,134 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-20 01:23:19,134 INFO L275 PluginConnector]: CDTParser initialized [2022-07-20 01:23:19,135 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2022-07-20 01:23:19,188 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d609684a/0330a3950c3d465192c7153662a3420c/FLAG8b0654c29 [2022-07-20 01:23:19,854 INFO L306 CDTParser]: Found 1 translation units. [2022-07-20 01:23:19,855 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2022-07-20 01:23:19,892 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d609684a/0330a3950c3d465192c7153662a3420c/FLAG8b0654c29 [2022-07-20 01:23:20,219 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d609684a/0330a3950c3d465192c7153662a3420c [2022-07-20 01:23:20,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-20 01:23:20,223 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-20 01:23:20,224 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-20 01:23:20,224 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-20 01:23:20,227 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-20 01:23:20,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:23:20" (1/1) ... [2022-07-20 01:23:20,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aaee965 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:23:20, skipping insertion in model container [2022-07-20 01:23:20,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:23:20" (1/1) ... [2022-07-20 01:23:20,232 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-20 01:23:20,324 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-20 01:23:21,767 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i[325202,325215] [2022-07-20 01:23:21,833 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:23:21,872 INFO L203 MainTranslator]: Completed pre-run [2022-07-20 01:23:22,166 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i[325202,325215] [2022-07-20 01:23:22,175 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-20 01:23:22,264 INFO L208 MainTranslator]: Completed translation [2022-07-20 01:23:22,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:23:22 WrapperNode [2022-07-20 01:23:22,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-20 01:23:22,267 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-20 01:23:22,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-20 01:23:22,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-20 01:23:22,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:23:22" (1/1) ... [2022-07-20 01:23:22,361 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:23:22" (1/1) ... [2022-07-20 01:23:22,554 INFO L137 Inliner]: procedures = 336, calls = 2288, calls flagged for inlining = 154, calls inlined = 152, statements flattened = 5863 [2022-07-20 01:23:22,555 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-20 01:23:22,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-20 01:23:22,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-20 01:23:22,556 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-20 01:23:22,566 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:23:22" (1/1) ... [2022-07-20 01:23:22,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:23:22" (1/1) ... [2022-07-20 01:23:22,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:23:22" (1/1) ... [2022-07-20 01:23:22,604 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:23:22" (1/1) ... [2022-07-20 01:23:22,709 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:23:22" (1/1) ... [2022-07-20 01:23:22,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:23:22" (1/1) ... [2022-07-20 01:23:22,773 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:23:22" (1/1) ... [2022-07-20 01:23:22,813 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-20 01:23:22,814 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-20 01:23:22,814 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-20 01:23:22,814 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-20 01:23:22,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:23:22" (1/1) ... [2022-07-20 01:23:22,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-20 01:23:22,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 01:23:22,851 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) [2022-07-20 01:23:22,908 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 [2022-07-20 01:23:22,926 INFO L130 BoogieDeclarations]: Found specification of procedure find_comp_entry [2022-07-20 01:23:22,926 INFO L138 BoogieDeclarations]: Found implementation of procedure find_comp_entry [2022-07-20 01:23:22,927 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-07-20 01:23:22,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2022-07-20 01:23:22,927 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2022-07-20 01:23:22,927 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2022-07-20 01:23:22,927 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2022-07-20 01:23:22,927 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2022-07-20 01:23:22,927 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-07-20 01:23:22,927 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2022-07-20 01:23:22,928 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2022-07-20 01:23:22,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-20 01:23:22,928 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2022-07-20 01:23:22,928 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2022-07-20 01:23:22,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-20 01:23:22,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-20 01:23:22,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-20 01:23:22,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-07-20 01:23:22,929 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-07-20 01:23:22,929 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-07-20 01:23:22,929 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-07-20 01:23:22,929 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2022-07-20 01:23:22,929 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2022-07-20 01:23:22,929 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2022-07-20 01:23:22,929 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2022-07-20 01:23:22,929 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2022-07-20 01:23:22,930 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2022-07-20 01:23:22,930 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_shutdown_interface [2022-07-20 01:23:22,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_shutdown_interface [2022-07-20 01:23:22,930 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2022-07-20 01:23:22,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2022-07-20 01:23:22,930 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-20 01:23:22,930 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-20 01:23:22,930 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2022-07-20 01:23:22,931 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2022-07-20 01:23:22,931 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-07-20 01:23:22,931 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-07-20 01:23:22,931 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-20 01:23:22,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-20 01:23:22,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-20 01:23:22,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-20 01:23:22,932 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_bh [2022-07-20 01:23:22,932 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_bh [2022-07-20 01:23:22,932 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_destroy [2022-07-20 01:23:22,932 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_destroy [2022-07-20 01:23:22,932 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2022-07-20 01:23:22,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2022-07-20 01:23:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure unit_find [2022-07-20 01:23:22,933 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_find [2022-07-20 01:23:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-07-20 01:23:22,933 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-07-20 01:23:22,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-20 01:23:22,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-20 01:23:22,934 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2022-07-20 01:23:22,934 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2022-07-20 01:23:22,934 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-20 01:23:22,934 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-20 01:23:22,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-20 01:23:22,935 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-20 01:23:22,936 INFO L130 BoogieDeclarations]: Found specification of procedure init_ppp_file [2022-07-20 01:23:22,936 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ppp_file [2022-07-20 01:23:22,936 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-20 01:23:22,936 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-20 01:23:22,936 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-07-20 01:23:22,936 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-07-20 01:23:22,936 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-20 01:23:22,936 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-20 01:23:22,936 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2022-07-20 01:23:22,937 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2022-07-20 01:23:22,937 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2022-07-20 01:23:22,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2022-07-20 01:23:22,937 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-07-20 01:23:22,938 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-07-20 01:23:22,938 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2022-07-20 01:23:22,938 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2022-07-20 01:23:22,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-20 01:23:22,938 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-07-20 01:23:22,938 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-07-20 01:23:22,938 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2022-07-20 01:23:22,938 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2022-07-20 01:23:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2022-07-20 01:23:22,939 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2022-07-20 01:23:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_create [2022-07-20 01:23:22,939 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_create [2022-07-20 01:23:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-20 01:23:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_get_stats64 [2022-07-20 01:23:22,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_get_stats64 [2022-07-20 01:23:22,939 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2022-07-20 01:23:22,939 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2022-07-20 01:23:22,940 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-20 01:23:22,940 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-20 01:23:22,940 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_send_frame [2022-07-20 01:23:22,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_send_frame [2022-07-20 01:23:22,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-20 01:23:22,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-20 01:23:22,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-20 01:23:22,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-20 01:23:22,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-20 01:23:22,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-20 01:23:22,942 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_error [2022-07-20 01:23:22,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_error [2022-07-20 01:23:22,942 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_unit [2022-07-20 01:23:22,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_unit [2022-07-20 01:23:22,943 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-07-20 01:23:22,943 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-07-20 01:23:22,943 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2022-07-20 01:23:22,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2022-07-20 01:23:22,943 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-07-20 01:23:22,943 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-07-20 01:23:22,943 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-07-20 01:23:22,944 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-07-20 01:23:22,944 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-07-20 01:23:22,944 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-07-20 01:23:22,944 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2022-07-20 01:23:22,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2022-07-20 01:23:22,944 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2022-07-20 01:23:22,945 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2022-07-20 01:23:22,945 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-20 01:23:22,946 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-20 01:23:22,947 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-20 01:23:22,947 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-20 01:23:22,947 INFO L130 BoogieDeclarations]: Found specification of procedure find_compressor [2022-07-20 01:23:22,948 INFO L138 BoogieDeclarations]: Found implementation of procedure find_compressor [2022-07-20 01:23:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_pernet [2022-07-20 01:23:22,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_pernet [2022-07-20 01:23:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-07-20 01:23:22,949 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-07-20 01:23:22,949 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-07-20 01:23:22,954 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-07-20 01:23:22,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-20 01:23:22,954 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_device [2022-07-20 01:23:22,954 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_device [2022-07-20 01:23:22,954 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-20 01:23:22,954 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-20 01:23:22,954 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2022-07-20 01:23:22,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2022-07-20 01:23:22,955 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_net_ioctl [2022-07-20 01:23:22,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_net_ioctl [2022-07-20 01:23:22,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-20 01:23:22,955 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_bh [2022-07-20 01:23:22,955 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_bh [2022-07-20 01:23:22,955 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-07-20 01:23:22,955 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-07-20 01:23:22,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-20 01:23:22,955 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-20 01:23:22,956 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-20 01:23:22,956 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2022-07-20 01:23:22,956 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2022-07-20 01:23:22,956 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2022-07-20 01:23:22,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2022-07-20 01:23:22,956 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_exit_net [2022-07-20 01:23:22,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_exit_net [2022-07-20 01:23:22,956 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2022-07-20 01:23:22,956 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2022-07-20 01:23:22,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-20 01:23:22,957 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-20 01:23:22,957 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2022-07-20 01:23:22,957 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2022-07-20 01:23:22,957 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_do_recv [2022-07-20 01:23:22,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_do_recv [2022-07-20 01:23:22,957 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2022-07-20 01:23:22,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2022-07-20 01:23:22,957 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2022-07-20 01:23:22,958 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2022-07-20 01:23:22,958 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2022-07-20 01:23:22,958 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2022-07-20 01:23:22,958 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-20 01:23:22,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-20 01:23:22,958 INFO L130 BoogieDeclarations]: Found specification of procedure proto_to_npindex [2022-07-20 01:23:22,958 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_to_npindex [2022-07-20 01:23:22,958 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2022-07-20 01:23:22,958 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2022-07-20 01:23:22,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_39 [2022-07-20 01:23:22,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_39 [2022-07-20 01:23:22,959 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-20 01:23:22,959 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-20 01:23:22,959 INFO L130 BoogieDeclarations]: Found specification of procedure unit_put [2022-07-20 01:23:22,959 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_put [2022-07-20 01:23:22,959 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_nonmp_frame [2022-07-20 01:23:22,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_nonmp_frame [2022-07-20 01:23:22,959 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2022-07-20 01:23:22,960 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2022-07-20 01:23:22,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-20 01:23:22,960 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2022-07-20 01:23:22,960 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2022-07-20 01:23:22,960 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2022-07-20 01:23:22,960 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2022-07-20 01:23:22,961 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-07-20 01:23:22,961 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-07-20 01:23:22,961 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_write [2022-07-20 01:23:22,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_write [2022-07-20 01:23:22,961 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2022-07-20 01:23:22,961 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2022-07-20 01:23:22,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-20 01:23:22,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-20 01:23:22,961 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2022-07-20 01:23:22,961 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2022-07-20 01:23:22,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-07-20 01:23:22,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-07-20 01:23:22,962 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2022-07-20 01:23:22,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2022-07-20 01:23:22,962 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_open [2022-07-20 01:23:22,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_open [2022-07-20 01:23:22,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-20 01:23:22,962 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-07-20 01:23:22,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-07-20 01:23:22,963 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2022-07-20 01:23:22,963 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2022-07-20 01:23:22,963 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2022-07-20 01:23:22,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2022-07-20 01:23:22,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-20 01:23:22,963 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-20 01:23:22,964 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-20 01:23:22,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-20 01:23:22,964 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2022-07-20 01:23:22,964 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2022-07-20 01:23:22,964 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-20 01:23:22,964 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2022-07-20 01:23:22,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2022-07-20 01:23:22,964 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-07-20 01:23:22,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-07-20 01:23:22,965 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-07-20 01:23:22,965 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-07-20 01:23:22,965 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2022-07-20 01:23:22,965 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2022-07-20 01:23:22,966 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2022-07-20 01:23:22,966 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2022-07-20 01:23:22,966 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2022-07-20 01:23:22,966 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2022-07-20 01:23:22,966 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-07-20 01:23:22,966 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-07-20 01:23:22,966 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2022-07-20 01:23:22,966 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2022-07-20 01:23:22,966 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2022-07-20 01:23:22,967 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2022-07-20 01:23:22,967 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2022-07-20 01:23:22,967 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2022-07-20 01:23:22,967 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-07-20 01:23:22,967 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-07-20 01:23:22,967 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_register_net_channel [2022-07-20 01:23:22,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_register_net_channel [2022-07-20 01:23:22,967 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-07-20 01:23:22,967 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-07-20 01:23:22,968 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_mp_explode [2022-07-20 01:23:22,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_mp_explode [2022-07-20 01:23:22,969 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_may_pull [2022-07-20 01:23:22,971 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_may_pull [2022-07-20 01:23:22,972 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-20 01:23:22,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-07-20 01:23:22,972 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2022-07-20 01:23:22,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2022-07-20 01:23:22,973 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2022-07-20 01:23:22,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2022-07-20 01:23:22,973 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_poll [2022-07-20 01:23:22,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_poll [2022-07-20 01:23:22,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-20 01:23:22,975 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_channel [2022-07-20 01:23:22,975 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_channel [2022-07-20 01:23:22,976 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-07-20 01:23:22,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-07-20 01:23:22,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-20 01:23:22,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-20 01:23:22,976 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-07-20 01:23:22,976 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-07-20 01:23:22,976 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-20 01:23:22,976 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-20 01:23:23,664 INFO L234 CfgBuilder]: Building ICFG [2022-07-20 01:23:23,666 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-20 01:23:24,054 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-20 01:23:26,438 INFO L275 CfgBuilder]: Performing block encoding [2022-07-20 01:23:26,449 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-20 01:23:26,450 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-20 01:23:26,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:23:26 BoogieIcfgContainer [2022-07-20 01:23:26,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-20 01:23:26,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-20 01:23:26,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-20 01:23:26,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-20 01:23:26,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:23:20" (1/3) ... [2022-07-20 01:23:26,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b92348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:23:26, skipping insertion in model container [2022-07-20 01:23:26,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:23:22" (2/3) ... [2022-07-20 01:23:26,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b92348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:23:26, skipping insertion in model container [2022-07-20 01:23:26,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:23:26" (3/3) ... [2022-07-20 01:23:26,458 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2022-07-20 01:23:26,468 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-20 01:23:26,468 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-20 01:23:26,530 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-20 01:23:26,535 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@533d176e, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@4512fd20 [2022-07-20 01:23:26,535 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-20 01:23:26,558 INFO L276 IsEmpty]: Start isEmpty. Operand has 2136 states, 1495 states have (on average 1.3839464882943144) internal successors, (2069), 1564 states have internal predecessors, (2069), 516 states have call successors, (516), 124 states have call predecessors, (516), 123 states have return successors, (511), 491 states have call predecessors, (511), 511 states have call successors, (511) [2022-07-20 01:23:26,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-07-20 01:23:26,571 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:23:26,572 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:23:26,572 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:23:26,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:23:26,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1518773854, now seen corresponding path program 1 times [2022-07-20 01:23:26,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:23:26,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641827301] [2022-07-20 01:23:26,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:23:26,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:23:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:23:27,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:27,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:27,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:23:27,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:27,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:27,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:23:27,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:27,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:27,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:23:27,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:27,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:27,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 01:23:27,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:27,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:27,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 01:23:27,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:27,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:27,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 01:23:27,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:27,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:27,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 01:23:27,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:27,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:27,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 01:23:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:27,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-20 01:23:27,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:27,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-20 01:23:27,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:27,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 01:23:27,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:27,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 01:23:27,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:27,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-20 01:23:27,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-20 01:23:27,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:27,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:27,416 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2022-07-20 01:23:27,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:23:27,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641827301] [2022-07-20 01:23:27,418 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641827301] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:23:27,418 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:23:27,418 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-20 01:23:27,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1352297843] [2022-07-20 01:23:27,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:23:27,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 01:23:27,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:23:27,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 01:23:27,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-20 01:23:27,451 INFO L87 Difference]: Start difference. First operand has 2136 states, 1495 states have (on average 1.3839464882943144) internal successors, (2069), 1564 states have internal predecessors, (2069), 516 states have call successors, (516), 124 states have call predecessors, (516), 123 states have return successors, (511), 491 states have call predecessors, (511), 511 states have call successors, (511) Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-20 01:23:31,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:23:31,556 INFO L93 Difference]: Finished difference Result 4820 states and 7294 transitions. [2022-07-20 01:23:31,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-20 01:23:31,558 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 225 [2022-07-20 01:23:31,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:23:31,615 INFO L225 Difference]: With dead ends: 4820 [2022-07-20 01:23:31,615 INFO L226 Difference]: Without dead ends: 2661 [2022-07-20 01:23:31,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-07-20 01:23:31,628 INFO L413 NwaCegarLoop]: 2928 mSDtfsCounter, 1905 mSDsluCounter, 2567 mSDsCounter, 0 mSdLazyCounter, 2200 mSolverCounterSat, 1456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2020 SdHoareTripleChecker+Valid, 5495 SdHoareTripleChecker+Invalid, 3656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1456 IncrementalHoareTripleChecker+Valid, 2200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-07-20 01:23:31,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2020 Valid, 5495 Invalid, 3656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1456 Valid, 2200 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-07-20 01:23:31,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2661 states. [2022-07-20 01:23:31,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2661 to 2108. [2022-07-20 01:23:31,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2108 states, 1478 states have (on average 1.3687415426251692) internal successors, (2023), 1540 states have internal predecessors, (2023), 507 states have call successors, (507), 123 states have call predecessors, (507), 122 states have return successors, (506), 486 states have call predecessors, (506), 506 states have call successors, (506) [2022-07-20 01:23:31,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2108 states to 2108 states and 3036 transitions. [2022-07-20 01:23:31,828 INFO L78 Accepts]: Start accepts. Automaton has 2108 states and 3036 transitions. Word has length 225 [2022-07-20 01:23:31,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:23:31,829 INFO L495 AbstractCegarLoop]: Abstraction has 2108 states and 3036 transitions. [2022-07-20 01:23:31,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (22), 5 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2022-07-20 01:23:31,829 INFO L276 IsEmpty]: Start isEmpty. Operand 2108 states and 3036 transitions. [2022-07-20 01:23:31,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2022-07-20 01:23:31,838 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:23:31,838 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:23:31,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-20 01:23:31,839 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:23:31,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:23:31,839 INFO L85 PathProgramCache]: Analyzing trace with hash 119169102, now seen corresponding path program 1 times [2022-07-20 01:23:31,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:23:31,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557849010] [2022-07-20 01:23:31,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:23:31,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:23:31,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:23:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:32,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:32,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:23:32,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:32,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:23:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:32,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:32,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:23:32,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:32,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:32,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 01:23:32,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:32,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:32,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 01:23:32,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:32,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:32,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 01:23:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:32,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:32,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 01:23:32,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:32,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 01:23:32,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:32,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-20 01:23:32,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-20 01:23:32,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:32,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 01:23:32,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:32,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 01:23:32,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:32,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-20 01:23:32,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:32,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-20 01:23:32,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:32,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:32,369 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2022-07-20 01:23:32,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:23:32,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557849010] [2022-07-20 01:23:32,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557849010] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:23:32,370 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:23:32,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 01:23:32,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768135787] [2022-07-20 01:23:32,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:23:32,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 01:23:32,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:23:32,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 01:23:32,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 01:23:32,375 INFO L87 Difference]: Start difference. First operand 2108 states and 3036 transitions. Second operand has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-07-20 01:23:40,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:23:40,543 INFO L93 Difference]: Finished difference Result 6651 states and 9811 transitions. [2022-07-20 01:23:40,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 01:23:40,544 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 225 [2022-07-20 01:23:40,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:23:40,563 INFO L225 Difference]: With dead ends: 6651 [2022-07-20 01:23:40,563 INFO L226 Difference]: Without dead ends: 4581 [2022-07-20 01:23:40,569 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-20 01:23:40,570 INFO L413 NwaCegarLoop]: 3373 mSDtfsCounter, 5098 mSDsluCounter, 6017 mSDsCounter, 0 mSdLazyCounter, 5143 mSolverCounterSat, 2746 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5400 SdHoareTripleChecker+Valid, 9390 SdHoareTripleChecker+Invalid, 7889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2746 IncrementalHoareTripleChecker+Valid, 5143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-07-20 01:23:40,570 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5400 Valid, 9390 Invalid, 7889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2746 Valid, 5143 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2022-07-20 01:23:40,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4581 states. [2022-07-20 01:23:40,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4581 to 3553. [2022-07-20 01:23:40,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3553 states, 2499 states have (on average 1.3661464585834333) internal successors, (3414), 2610 states have internal predecessors, (3414), 825 states have call successors, (825), 229 states have call predecessors, (825), 228 states have return successors, (824), 786 states have call predecessors, (824), 824 states have call successors, (824) [2022-07-20 01:23:40,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3553 states to 3553 states and 5063 transitions. [2022-07-20 01:23:40,677 INFO L78 Accepts]: Start accepts. Automaton has 3553 states and 5063 transitions. Word has length 225 [2022-07-20 01:23:40,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:23:40,680 INFO L495 AbstractCegarLoop]: Abstraction has 3553 states and 5063 transitions. [2022-07-20 01:23:40,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.666666666666667) internal successors, (46), 3 states have internal predecessors, (46), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2022-07-20 01:23:40,680 INFO L276 IsEmpty]: Start isEmpty. Operand 3553 states and 5063 transitions. [2022-07-20 01:23:40,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-07-20 01:23:40,683 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:23:40,684 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:23:40,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-20 01:23:40,684 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:23:40,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:23:40,684 INFO L85 PathProgramCache]: Analyzing trace with hash 683526252, now seen corresponding path program 1 times [2022-07-20 01:23:40,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:23:40,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158753429] [2022-07-20 01:23:40,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:23:40,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:23:40,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:40,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:23:40,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:40,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:40,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:40,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:40,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:40,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:23:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:40,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:40,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:40,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:40,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:40,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:23:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:40,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:40,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:40,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:40,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:40,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:23:40,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:40,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:40,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:40,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:40,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:40,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 01:23:40,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:40,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:40,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:40,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:40,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:40,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 01:23:40,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:40,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:40,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:40,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:40,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 01:23:40,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:40,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:40,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:40,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:40,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 01:23:40,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:40,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:40,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:40,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:40,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:41,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 01:23:41,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:41,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:41,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:41,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-20 01:23:41,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:41,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:41,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:41,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-20 01:23:41,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:41,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:41,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:41,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 01:23:41,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:41,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:41,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 01:23:41,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:41,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:41,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:41,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-20 01:23:41,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:41,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:41,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:41,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-20 01:23:41,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:41,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:41,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:41,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-20 01:23:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:41,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-20 01:23:41,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:41,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-20 01:23:41,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:41,114 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2022-07-20 01:23:41,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:23:41,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158753429] [2022-07-20 01:23:41,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158753429] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:23:41,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:23:41,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 01:23:41,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343955337] [2022-07-20 01:23:41,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:23:41,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 01:23:41,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:23:41,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 01:23:41,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 01:23:41,117 INFO L87 Difference]: Start difference. First operand 3553 states and 5063 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-20 01:23:47,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:23:47,652 INFO L93 Difference]: Finished difference Result 12315 states and 18209 transitions. [2022-07-20 01:23:47,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 01:23:47,652 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 246 [2022-07-20 01:23:47,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:23:47,695 INFO L225 Difference]: With dead ends: 12315 [2022-07-20 01:23:47,695 INFO L226 Difference]: Without dead ends: 8800 [2022-07-20 01:23:47,706 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-20 01:23:47,707 INFO L413 NwaCegarLoop]: 3625 mSDtfsCounter, 8326 mSDsluCounter, 3994 mSDsCounter, 0 mSdLazyCounter, 3573 mSolverCounterSat, 4829 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8700 SdHoareTripleChecker+Valid, 7619 SdHoareTripleChecker+Invalid, 8402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4829 IncrementalHoareTripleChecker+Valid, 3573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:23:47,707 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8700 Valid, 7619 Invalid, 8402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4829 Valid, 3573 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2022-07-20 01:23:47,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8800 states. [2022-07-20 01:23:47,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8800 to 7186. [2022-07-20 01:23:47,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7186 states, 5043 states have (on average 1.3628792385484831) internal successors, (6873), 5291 states have internal predecessors, (6873), 1645 states have call successors, (1645), 445 states have call predecessors, (1645), 497 states have return successors, (1859), 1605 states have call predecessors, (1859), 1644 states have call successors, (1859) [2022-07-20 01:23:48,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7186 states to 7186 states and 10377 transitions. [2022-07-20 01:23:48,012 INFO L78 Accepts]: Start accepts. Automaton has 7186 states and 10377 transitions. Word has length 246 [2022-07-20 01:23:48,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:23:48,014 INFO L495 AbstractCegarLoop]: Abstraction has 7186 states and 10377 transitions. [2022-07-20 01:23:48,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 3 states have internal predecessors, (63), 2 states have call successors, (23), 5 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-20 01:23:48,014 INFO L276 IsEmpty]: Start isEmpty. Operand 7186 states and 10377 transitions. [2022-07-20 01:23:48,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2022-07-20 01:23:48,018 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:23:48,018 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2022-07-20 01:23:48,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-20 01:23:48,019 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:23:48,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:23:48,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1198469260, now seen corresponding path program 1 times [2022-07-20 01:23:48,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:23:48,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968456420] [2022-07-20 01:23:48,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:23:48,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:23:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:23:48,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:48,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:48,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:23:48,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:48,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:23:48,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:48,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:48,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:23:48,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:48,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:48,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 01:23:48,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:48,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 01:23:48,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:48,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 01:23:48,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:48,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:48,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 01:23:48,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:48,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:48,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 01:23:48,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:48,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-20 01:23:48,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:48,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-20 01:23:48,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:48,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 01:23:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 01:23:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:48,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-20 01:23:48,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:48,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-20 01:23:48,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-20 01:23:48,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:48,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:48,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-20 01:23:48,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:48,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:48,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-20 01:23:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:48,395 INFO L134 CoverageAnalysis]: Checked inductivity of 822 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2022-07-20 01:23:48,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:23:48,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968456420] [2022-07-20 01:23:48,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968456420] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:23:48,396 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:23:48,396 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 01:23:48,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113863500] [2022-07-20 01:23:48,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:23:48,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 01:23:48,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:23:48,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 01:23:48,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 01:23:48,398 INFO L87 Difference]: Start difference. First operand 7186 states and 10377 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-07-20 01:23:50,946 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:23:55,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:23:55,807 INFO L93 Difference]: Finished difference Result 15900 states and 23467 transitions. [2022-07-20 01:23:55,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 01:23:55,822 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 279 [2022-07-20 01:23:55,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:23:55,870 INFO L225 Difference]: With dead ends: 15900 [2022-07-20 01:23:55,870 INFO L226 Difference]: Without dead ends: 8756 [2022-07-20 01:23:55,897 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-07-20 01:23:55,900 INFO L413 NwaCegarLoop]: 2777 mSDtfsCounter, 4726 mSDsluCounter, 3431 mSDsCounter, 0 mSdLazyCounter, 2865 mSolverCounterSat, 2123 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5031 SdHoareTripleChecker+Valid, 6208 SdHoareTripleChecker+Invalid, 4989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2123 IncrementalHoareTripleChecker+Valid, 2865 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:23:55,901 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5031 Valid, 6208 Invalid, 4989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2123 Valid, 2865 Invalid, 1 Unknown, 0 Unchecked, 7.1s Time] [2022-07-20 01:23:55,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8756 states. [2022-07-20 01:23:56,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8756 to 7186. [2022-07-20 01:23:56,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7186 states, 5043 states have (on average 1.362086059884989) internal successors, (6869), 5291 states have internal predecessors, (6869), 1645 states have call successors, (1645), 445 states have call predecessors, (1645), 497 states have return successors, (1859), 1605 states have call predecessors, (1859), 1644 states have call successors, (1859) [2022-07-20 01:23:56,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7186 states to 7186 states and 10373 transitions. [2022-07-20 01:23:56,234 INFO L78 Accepts]: Start accepts. Automaton has 7186 states and 10373 transitions. Word has length 279 [2022-07-20 01:23:56,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:23:56,236 INFO L495 AbstractCegarLoop]: Abstraction has 7186 states and 10373 transitions. [2022-07-20 01:23:56,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (25), 5 states have call predecessors, (25), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2022-07-20 01:23:56,237 INFO L276 IsEmpty]: Start isEmpty. Operand 7186 states and 10373 transitions. [2022-07-20 01:23:56,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2022-07-20 01:23:56,241 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:23:56,241 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2022-07-20 01:23:56,241 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-20 01:23:56,241 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:23:56,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:23:56,242 INFO L85 PathProgramCache]: Analyzing trace with hash -1833686891, now seen corresponding path program 1 times [2022-07-20 01:23:56,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:23:56,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701708731] [2022-07-20 01:23:56,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:23:56,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:23:56,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:23:56,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:56,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:23:56,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:56,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:23:56,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:56,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:56,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:23:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:56,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:56,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 01:23:56,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:56,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 01:23:56,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:56,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:56,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 01:23:56,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:56,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 01:23:56,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:56,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:56,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 01:23:56,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:56,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-20 01:23:56,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:56,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-20 01:23:56,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 01:23:56,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 01:23:56,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:56,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-20 01:23:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:56,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-20 01:23:56,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-20 01:23:56,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:56,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-20 01:23:56,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:56,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:56,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-20 01:23:56,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-07-20 01:23:56,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:23:56,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:23:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:23:56,715 INFO L134 CoverageAnalysis]: Checked inductivity of 962 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 962 trivial. 0 not checked. [2022-07-20 01:23:56,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:23:56,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701708731] [2022-07-20 01:23:56,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701708731] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:23:56,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:23:56,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-20 01:23:56,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726330281] [2022-07-20 01:23:56,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:23:56,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 01:23:56,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:23:56,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 01:23:56,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-20 01:23:56,717 INFO L87 Difference]: Start difference. First operand 7186 states and 10373 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-20 01:24:01,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:24:01,731 INFO L93 Difference]: Finished difference Result 13475 states and 20285 transitions. [2022-07-20 01:24:01,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-20 01:24:01,732 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 296 [2022-07-20 01:24:01,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:24:01,791 INFO L225 Difference]: With dead ends: 13475 [2022-07-20 01:24:01,792 INFO L226 Difference]: Without dead ends: 13472 [2022-07-20 01:24:01,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-07-20 01:24:01,802 INFO L413 NwaCegarLoop]: 3720 mSDtfsCounter, 6254 mSDsluCounter, 3071 mSDsCounter, 0 mSdLazyCounter, 2786 mSolverCounterSat, 3353 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6495 SdHoareTripleChecker+Valid, 6791 SdHoareTripleChecker+Invalid, 6139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3353 IncrementalHoareTripleChecker+Valid, 2786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2022-07-20 01:24:01,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6495 Valid, 6791 Invalid, 6139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3353 Valid, 2786 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2022-07-20 01:24:01,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13472 states. [2022-07-20 01:24:02,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13472 to 10614. [2022-07-20 01:24:02,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10614 states, 7553 states have (on average 1.3687276578842844) internal successors, (10338), 7924 states have internal predecessors, (10338), 2282 states have call successors, (2282), 713 states have call predecessors, (2282), 778 states have return successors, (2664), 2188 states have call predecessors, (2664), 2281 states have call successors, (2664) [2022-07-20 01:24:02,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10614 states to 10614 states and 15284 transitions. [2022-07-20 01:24:02,172 INFO L78 Accepts]: Start accepts. Automaton has 10614 states and 15284 transitions. Word has length 296 [2022-07-20 01:24:02,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:24:02,173 INFO L495 AbstractCegarLoop]: Abstraction has 10614 states and 15284 transitions. [2022-07-20 01:24:02,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (26), 6 states have call predecessors, (26), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2022-07-20 01:24:02,173 INFO L276 IsEmpty]: Start isEmpty. Operand 10614 states and 15284 transitions. [2022-07-20 01:24:02,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2022-07-20 01:24:02,181 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:24:02,182 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2022-07-20 01:24:02,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-20 01:24:02,184 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:24:02,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:24:02,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1920344343, now seen corresponding path program 1 times [2022-07-20 01:24:02,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:24:02,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106576323] [2022-07-20 01:24:02,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:24:02,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:24:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:24:02,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:02,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:02,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:24:02,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:02,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:24:02,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:02,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:02,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:24:02,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:02,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 01:24:02,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:02,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:02,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 01:24:02,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:02,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 01:24:02,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:02,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 01:24:02,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:02,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:02,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 01:24:02,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:02,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-20 01:24:02,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:02,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-20 01:24:02,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 01:24:02,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 01:24:02,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:02,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-20 01:24:02,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:02,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-20 01:24:02,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:02,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-20 01:24:02,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:02,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:02,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-20 01:24:02,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:02,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-20 01:24:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-07-20 01:24:02,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:02,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-07-20 01:24:02,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:02,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:02,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2022-07-20 01:24:02,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2022-07-20 01:24:02,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-07-20 01:24:02,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:02,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-20 01:24:02,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2022-07-20 01:24:02,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2022-07-20 01:24:02,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:02,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2022-07-20 01:24:02,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:02,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:02,888 INFO L134 CoverageAnalysis]: Checked inductivity of 974 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 972 trivial. 0 not checked. [2022-07-20 01:24:02,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:24:02,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106576323] [2022-07-20 01:24:02,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106576323] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:24:02,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:24:02,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-20 01:24:02,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142763839] [2022-07-20 01:24:02,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:24:02,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-20 01:24:02,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:24:02,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-20 01:24:02,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-20 01:24:02,891 INFO L87 Difference]: Start difference. First operand 10614 states and 15284 transitions. Second operand has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (42), 7 states have call predecessors, (42), 3 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-20 01:24:06,644 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:24:17,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:24:17,522 INFO L93 Difference]: Finished difference Result 27466 states and 41924 transitions. [2022-07-20 01:24:17,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-20 01:24:17,523 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (42), 7 states have call predecessors, (42), 3 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) Word has length 386 [2022-07-20 01:24:17,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:24:17,591 INFO L225 Difference]: With dead ends: 27466 [2022-07-20 01:24:17,591 INFO L226 Difference]: Without dead ends: 16894 [2022-07-20 01:24:17,627 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2022-07-20 01:24:17,628 INFO L413 NwaCegarLoop]: 2901 mSDtfsCounter, 6009 mSDsluCounter, 14098 mSDsCounter, 0 mSdLazyCounter, 11671 mSolverCounterSat, 4892 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6253 SdHoareTripleChecker+Valid, 16999 SdHoareTripleChecker+Invalid, 16564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4892 IncrementalHoareTripleChecker+Valid, 11671 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-07-20 01:24:17,628 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6253 Valid, 16999 Invalid, 16564 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4892 Valid, 11671 Invalid, 1 Unknown, 0 Unchecked, 13.8s Time] [2022-07-20 01:24:17,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16894 states. [2022-07-20 01:24:18,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16894 to 11260. [2022-07-20 01:24:18,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11260 states, 7994 states have (on average 1.3696522391793846) internal successors, (10949), 8396 states have internal predecessors, (10949), 2459 states have call successors, (2459), 713 states have call predecessors, (2459), 806 states have return successors, (2967), 2365 states have call predecessors, (2967), 2458 states have call successors, (2967) [2022-07-20 01:24:18,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11260 states to 11260 states and 16375 transitions. [2022-07-20 01:24:18,167 INFO L78 Accepts]: Start accepts. Automaton has 11260 states and 16375 transitions. Word has length 386 [2022-07-20 01:24:18,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:24:18,167 INFO L495 AbstractCegarLoop]: Abstraction has 11260 states and 16375 transitions. [2022-07-20 01:24:18,168 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.083333333333334) internal successors, (121), 5 states have internal predecessors, (121), 2 states have call successors, (42), 7 states have call predecessors, (42), 3 states have return successors, (34), 4 states have call predecessors, (34), 2 states have call successors, (34) [2022-07-20 01:24:18,168 INFO L276 IsEmpty]: Start isEmpty. Operand 11260 states and 16375 transitions. [2022-07-20 01:24:18,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 408 [2022-07-20 01:24:18,177 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:24:18,177 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2022-07-20 01:24:18,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-20 01:24:18,178 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:24:18,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:24:18,178 INFO L85 PathProgramCache]: Analyzing trace with hash 366789914, now seen corresponding path program 1 times [2022-07-20 01:24:18,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:24:18,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630651166] [2022-07-20 01:24:18,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:24:18,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:24:18,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:24:18,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:18,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:18,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:24:18,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:18,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:18,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:24:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:18,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:18,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:24:18,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:18,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:18,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 01:24:18,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:18,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:18,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 01:24:18,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:18,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:18,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 01:24:18,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:18,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:18,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 01:24:18,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:18,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:18,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 01:24:18,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:18,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-20 01:24:18,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-20 01:24:18,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 01:24:18,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:18,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 01:24:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-20 01:24:18,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-20 01:24:18,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:18,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-20 01:24:18,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:18,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-20 01:24:18,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:18,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:18,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-20 01:24:18,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-07-20 01:24:18,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:18,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:18,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2022-07-20 01:24:18,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:18,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:18,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:24:18,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-20 01:24:18,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:18,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-20 01:24:18,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2022-07-20 01:24:18,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2022-07-20 01:24:18,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2022-07-20 01:24:18,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:18,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-20 01:24:18,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2022-07-20 01:24:18,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2022-07-20 01:24:18,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:18,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-07-20 01:24:18,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:18,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:18,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1066 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1061 trivial. 0 not checked. [2022-07-20 01:24:18,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:24:18,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630651166] [2022-07-20 01:24:18,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630651166] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:24:18,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-20 01:24:18,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-20 01:24:18,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304692064] [2022-07-20 01:24:18,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:24:18,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-20 01:24:18,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:24:18,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-20 01:24:18,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-07-20 01:24:18,648 INFO L87 Difference]: Start difference. First operand 11260 states and 16375 transitions. Second operand has 8 states, 8 states have (on average 16.25) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (46), 7 states have call predecessors, (46), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-07-20 01:24:31,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:24:31,134 INFO L93 Difference]: Finished difference Result 35964 states and 55398 transitions. [2022-07-20 01:24:31,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-07-20 01:24:31,136 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.25) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (46), 7 states have call predecessors, (46), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 407 [2022-07-20 01:24:31,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:24:31,226 INFO L225 Difference]: With dead ends: 35964 [2022-07-20 01:24:31,227 INFO L226 Difference]: Without dead ends: 24746 [2022-07-20 01:24:31,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-07-20 01:24:31,256 INFO L413 NwaCegarLoop]: 4250 mSDtfsCounter, 10945 mSDsluCounter, 7074 mSDsCounter, 0 mSdLazyCounter, 7630 mSolverCounterSat, 8190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11389 SdHoareTripleChecker+Valid, 11324 SdHoareTripleChecker+Invalid, 15820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8190 IncrementalHoareTripleChecker+Valid, 7630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2022-07-20 01:24:31,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11389 Valid, 11324 Invalid, 15820 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8190 Valid, 7630 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2022-07-20 01:24:31,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24746 states. [2022-07-20 01:24:31,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24746 to 16209. [2022-07-20 01:24:31,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16209 states, 11527 states have (on average 1.369133339116856) internal successors, (15782), 12119 states have internal predecessors, (15782), 3500 states have call successors, (3500), 1049 states have call predecessors, (3500), 1181 states have return successors, (4227), 3354 states have call predecessors, (4227), 3499 states have call successors, (4227) [2022-07-20 01:24:31,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16209 states to 16209 states and 23509 transitions. [2022-07-20 01:24:31,909 INFO L78 Accepts]: Start accepts. Automaton has 16209 states and 23509 transitions. Word has length 407 [2022-07-20 01:24:31,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:24:31,910 INFO L495 AbstractCegarLoop]: Abstraction has 16209 states and 23509 transitions. [2022-07-20 01:24:31,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.25) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (46), 7 states have call predecessors, (46), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2022-07-20 01:24:31,910 INFO L276 IsEmpty]: Start isEmpty. Operand 16209 states and 23509 transitions. [2022-07-20 01:24:31,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2022-07-20 01:24:31,917 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:24:31,917 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 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] [2022-07-20 01:24:31,917 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-20 01:24:31,917 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:24:31,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:24:31,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1924723431, now seen corresponding path program 1 times [2022-07-20 01:24:31,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:24:31,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981188811] [2022-07-20 01:24:31,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:24:31,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:24:32,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:24:32,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:32,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:32,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:24:32,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:24:32,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:32,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:32,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:24:32,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:32,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 01:24:32,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:32,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 01:24:32,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:32,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:32,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 01:24:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:32,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:32,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 01:24:32,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:32,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 01:24:32,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:32,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-20 01:24:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-20 01:24:32,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:32,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 01:24:32,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:32,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 01:24:32,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:32,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-20 01:24:32,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-20 01:24:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-20 01:24:32,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:32,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:32,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-20 01:24:32,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:32,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:32,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-20 01:24:32,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2022-07-20 01:24:32,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:32,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:32,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-07-20 01:24:32,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:32,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:32,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:24:32,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-20 01:24:32,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:32,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-20 01:24:32,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2022-07-20 01:24:32,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2022-07-20 01:24:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2022-07-20 01:24:32,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:32,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-20 01:24:32,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2022-07-20 01:24:32,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2022-07-20 01:24:32,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-07-20 01:24:32,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-07-20 01:24:32,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:32,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:32,654 INFO L134 CoverageAnalysis]: Checked inductivity of 1060 backedges. 2 proven. 42 refuted. 0 times theorem prover too weak. 1016 trivial. 0 not checked. [2022-07-20 01:24:32,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:24:32,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981188811] [2022-07-20 01:24:32,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981188811] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 01:24:32,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [144952425] [2022-07-20 01:24:32,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:24:32,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 01:24:32,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 01:24:32,675 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) [2022-07-20 01:24:32,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-20 01:24:33,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:33,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 3950 conjuncts, 19 conjunts are in the unsatisfiable core [2022-07-20 01:24:33,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:24:33,797 INFO L134 CoverageAnalysis]: Checked inductivity of 1060 backedges. 223 proven. 0 refuted. 0 times theorem prover too weak. 837 trivial. 0 not checked. [2022-07-20 01:24:33,798 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:24:33,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [144952425] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:24:33,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 01:24:33,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2022-07-20 01:24:33,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217818143] [2022-07-20 01:24:33,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:24:33,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-20 01:24:33,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:24:33,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-20 01:24:33,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-07-20 01:24:33,799 INFO L87 Difference]: Start difference. First operand 16209 states and 23509 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 3 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-07-20 01:24:34,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:24:34,236 INFO L93 Difference]: Finished difference Result 32368 states and 46951 transitions. [2022-07-20 01:24:34,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-20 01:24:34,237 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 3 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 405 [2022-07-20 01:24:34,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:24:34,295 INFO L225 Difference]: With dead ends: 32368 [2022-07-20 01:24:34,295 INFO L226 Difference]: Without dead ends: 16175 [2022-07-20 01:24:34,335 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 542 GetRequests, 528 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2022-07-20 01:24:34,336 INFO L413 NwaCegarLoop]: 3034 mSDtfsCounter, 3 mSDsluCounter, 9089 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 12123 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-20 01:24:34,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 12123 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-20 01:24:34,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16175 states. [2022-07-20 01:24:34,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16175 to 16167. [2022-07-20 01:24:34,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16167 states, 11495 states have (on average 1.3694649847759897) internal successors, (15742), 12083 states have internal predecessors, (15742), 3494 states have call successors, (3494), 1045 states have call predecessors, (3494), 1177 states have return successors, (4221), 3348 states have call predecessors, (4221), 3493 states have call successors, (4221) [2022-07-20 01:24:34,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16167 states to 16167 states and 23457 transitions. [2022-07-20 01:24:34,935 INFO L78 Accepts]: Start accepts. Automaton has 16167 states and 23457 transitions. Word has length 405 [2022-07-20 01:24:34,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:24:34,936 INFO L495 AbstractCegarLoop]: Abstraction has 16167 states and 23457 transitions. [2022-07-20 01:24:34,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 3 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2022-07-20 01:24:34,936 INFO L276 IsEmpty]: Start isEmpty. Operand 16167 states and 23457 transitions. [2022-07-20 01:24:34,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2022-07-20 01:24:34,942 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:24:34,942 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 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] [2022-07-20 01:24:34,967 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-07-20 01:24:35,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 01:24:35,164 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:24:35,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:24:35,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1558670621, now seen corresponding path program 1 times [2022-07-20 01:24:35,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:24:35,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820238762] [2022-07-20 01:24:35,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:24:35,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:24:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:24:35,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:35,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:35,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:24:35,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:35,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:35,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:24:35,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:35,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:35,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:24:35,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:35,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:35,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 01:24:35,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:35,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 01:24:35,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:35,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:35,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 01:24:35,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:35,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:35,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 01:24:35,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:35,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:35,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 01:24:35,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:35,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-20 01:24:35,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:35,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-20 01:24:35,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:35,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 01:24:35,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:35,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 01:24:35,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:35,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-20 01:24:35,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:35,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-20 01:24:35,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:35,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-20 01:24:35,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:35,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:35,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-20 01:24:35,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:35,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:35,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-20 01:24:35,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-20 01:24:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:35,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-20 01:24:35,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:35,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:35,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-20 01:24:35,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:35,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:35,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:24:35,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-20 01:24:35,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:35,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-20 01:24:35,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2022-07-20 01:24:35,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-07-20 01:24:35,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2022-07-20 01:24:35,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:35,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-20 01:24:35,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-07-20 01:24:35,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2022-07-20 01:24:35,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:35,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2022-07-20 01:24:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2022-07-20 01:24:35,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:35,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:35,747 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 2 proven. 42 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2022-07-20 01:24:35,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:24:35,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820238762] [2022-07-20 01:24:35,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820238762] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 01:24:35,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660315592] [2022-07-20 01:24:35,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:24:35,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 01:24:35,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 01:24:35,749 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) [2022-07-20 01:24:35,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-20 01:24:36,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:36,698 INFO L263 TraceCheckSpWp]: Trace formula consists of 4033 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-20 01:24:36,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:24:36,952 INFO L134 CoverageAnalysis]: Checked inductivity of 1076 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1066 trivial. 0 not checked. [2022-07-20 01:24:36,952 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:24:36,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660315592] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:24:36,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 01:24:36,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2022-07-20 01:24:36,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418474597] [2022-07-20 01:24:36,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:24:36,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-07-20 01:24:36,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:24:36,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-07-20 01:24:36,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342 [2022-07-20 01:24:36,953 INFO L87 Difference]: Start difference. First operand 16167 states and 23457 transitions. Second operand has 10 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 3 states have call successors, (48), 2 states have call predecessors, (48), 4 states have return successors, (41), 5 states have call predecessors, (41), 3 states have call successors, (41) [2022-07-20 01:24:37,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:24:37,718 INFO L93 Difference]: Finished difference Result 32324 states and 46909 transitions. [2022-07-20 01:24:37,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-20 01:24:37,719 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 3 states have call successors, (48), 2 states have call predecessors, (48), 4 states have return successors, (41), 5 states have call predecessors, (41), 3 states have call successors, (41) Word has length 418 [2022-07-20 01:24:37,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:24:37,767 INFO L225 Difference]: With dead ends: 32324 [2022-07-20 01:24:37,768 INFO L226 Difference]: Without dead ends: 16199 [2022-07-20 01:24:37,797 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 559 GetRequests, 540 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2022-07-20 01:24:37,798 INFO L413 NwaCegarLoop]: 3018 mSDtfsCounter, 10 mSDsluCounter, 18066 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 21084 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:24:37,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 21084 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 01:24:37,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16199 states. [2022-07-20 01:24:38,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16199 to 16187. [2022-07-20 01:24:38,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16187 states, 11511 states have (on average 1.3689514377551908) internal successors, (15758), 12099 states have internal predecessors, (15758), 3494 states have call successors, (3494), 1045 states have call predecessors, (3494), 1181 states have return successors, (4233), 3352 states have call predecessors, (4233), 3493 states have call successors, (4233) [2022-07-20 01:24:38,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16187 states to 16187 states and 23485 transitions. [2022-07-20 01:24:38,500 INFO L78 Accepts]: Start accepts. Automaton has 16187 states and 23485 transitions. Word has length 418 [2022-07-20 01:24:38,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:24:38,501 INFO L495 AbstractCegarLoop]: Abstraction has 16187 states and 23485 transitions. [2022-07-20 01:24:38,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 14.88888888888889) internal successors, (134), 8 states have internal predecessors, (134), 3 states have call successors, (48), 2 states have call predecessors, (48), 4 states have return successors, (41), 5 states have call predecessors, (41), 3 states have call successors, (41) [2022-07-20 01:24:38,502 INFO L276 IsEmpty]: Start isEmpty. Operand 16187 states and 23485 transitions. [2022-07-20 01:24:38,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 420 [2022-07-20 01:24:38,509 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:24:38,510 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:24:38,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-20 01:24:38,735 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,SelfDestructingSolverStorable8 [2022-07-20 01:24:38,736 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:24:38,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:24:38,736 INFO L85 PathProgramCache]: Analyzing trace with hash -1715961506, now seen corresponding path program 1 times [2022-07-20 01:24:38,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:24:38,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651308303] [2022-07-20 01:24:38,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:24:38,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:24:38,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:38,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:24:38,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:38,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:38,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:38,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:38,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:38,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:24:38,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:38,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:38,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:38,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:38,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:24:38,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:38,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:38,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:38,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:38,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:38,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:24:38,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:38,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:38,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:38,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:38,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:38,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 01:24:38,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:39,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:39,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 01:24:39,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:39,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:39,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 01:24:39,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:39,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:39,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 01:24:39,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:39,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:39,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 01:24:39,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:39,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-20 01:24:39,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:39,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-20 01:24:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:39,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-20 01:24:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:39,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-20 01:24:39,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:39,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-07-20 01:24:39,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:39,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-20 01:24:39,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:39,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-20 01:24:39,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:39,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:39,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-20 01:24:39,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:39,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:39,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2022-07-20 01:24:39,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-20 01:24:39,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:39,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-20 01:24:39,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:39,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:39,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2022-07-20 01:24:39,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:39,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:39,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:24:39,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-20 01:24:39,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:39,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-20 01:24:39,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2022-07-20 01:24:39,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2022-07-20 01:24:39,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2022-07-20 01:24:39,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:39,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-20 01:24:39,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2022-07-20 01:24:39,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2022-07-20 01:24:39,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:39,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2022-07-20 01:24:39,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:39,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:39,326 INFO L134 CoverageAnalysis]: Checked inductivity of 1078 backedges. 2 proven. 42 refuted. 0 times theorem prover too weak. 1034 trivial. 0 not checked. [2022-07-20 01:24:39,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:24:39,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651308303] [2022-07-20 01:24:39,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651308303] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 01:24:39,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621153707] [2022-07-20 01:24:39,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:24:39,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 01:24:39,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 01:24:39,329 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) [2022-07-20 01:24:39,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-20 01:24:40,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:40,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 4111 conjuncts, 11 conjunts are in the unsatisfiable core [2022-07-20 01:24:40,704 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:24:40,765 INFO L134 CoverageAnalysis]: Checked inductivity of 1078 backedges. 497 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2022-07-20 01:24:40,766 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-20 01:24:40,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621153707] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-20 01:24:40,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-20 01:24:40,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 13 [2022-07-20 01:24:40,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698729305] [2022-07-20 01:24:40,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-20 01:24:40,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-20 01:24:40,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:24:40,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-20 01:24:40,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-07-20 01:24:40,767 INFO L87 Difference]: Start difference. First operand 16187 states and 23485 transitions. Second operand has 6 states, 5 states have (on average 29.8) internal successors, (149), 6 states have internal predecessors, (149), 3 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-07-20 01:24:41,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:24:41,275 INFO L93 Difference]: Finished difference Result 32369 states and 46978 transitions. [2022-07-20 01:24:41,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-20 01:24:41,276 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 29.8) internal successors, (149), 6 states have internal predecessors, (149), 3 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) Word has length 419 [2022-07-20 01:24:41,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:24:41,335 INFO L225 Difference]: With dead ends: 32369 [2022-07-20 01:24:41,335 INFO L226 Difference]: Without dead ends: 16191 [2022-07-20 01:24:41,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 544 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-07-20 01:24:41,513 INFO L413 NwaCegarLoop]: 3023 mSDtfsCounter, 6 mSDsluCounter, 12067 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 15090 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-20 01:24:41,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 15090 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-20 01:24:41,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16191 states. [2022-07-20 01:24:42,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16191 to 16191. [2022-07-20 01:24:42,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16191 states, 11515 states have (on average 1.3688232739904473) internal successors, (15762), 12103 states have internal predecessors, (15762), 3494 states have call successors, (3494), 1045 states have call predecessors, (3494), 1181 states have return successors, (4233), 3352 states have call predecessors, (4233), 3493 states have call successors, (4233) [2022-07-20 01:24:42,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16191 states to 16191 states and 23489 transitions. [2022-07-20 01:24:42,072 INFO L78 Accepts]: Start accepts. Automaton has 16191 states and 23489 transitions. Word has length 419 [2022-07-20 01:24:42,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:24:42,072 INFO L495 AbstractCegarLoop]: Abstraction has 16191 states and 23489 transitions. [2022-07-20 01:24:42,073 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 29.8) internal successors, (149), 6 states have internal predecessors, (149), 3 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (43), 3 states have call predecessors, (43), 3 states have call successors, (43) [2022-07-20 01:24:42,073 INFO L276 IsEmpty]: Start isEmpty. Operand 16191 states and 23489 transitions. [2022-07-20 01:24:42,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2022-07-20 01:24:42,079 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:24:42,079 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:24:42,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-20 01:24:42,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 01:24:42,306 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:24:42,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:24:42,307 INFO L85 PathProgramCache]: Analyzing trace with hash 615269267, now seen corresponding path program 1 times [2022-07-20 01:24:42,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:24:42,307 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082193705] [2022-07-20 01:24:42,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:24:42,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:24:42,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:24:42,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:42,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:42,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:24:42,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:42,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:42,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:24:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:42,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:24:42,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:42,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 01:24:42,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:42,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:42,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 01:24:42,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:42,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:42,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 01:24:42,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:42,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:42,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 01:24:42,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:42,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:42,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 01:24:42,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:42,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-20 01:24:42,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:42,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-20 01:24:42,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:42,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2022-07-20 01:24:42,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:42,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-07-20 01:24:42,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:42,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-07-20 01:24:42,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:42,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-20 01:24:42,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:42,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2022-07-20 01:24:42,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:42,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:42,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-07-20 01:24:42,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:42,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:42,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-20 01:24:42,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-20 01:24:42,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:42,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-07-20 01:24:42,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:42,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:42,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-07-20 01:24:42,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:42,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:24:42,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:24:42,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-20 01:24:42,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:42,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-20 01:24:42,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2022-07-20 01:24:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2022-07-20 01:24:42,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2022-07-20 01:24:42,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:42,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-20 01:24:42,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2022-07-20 01:24:42,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2022-07-20 01:24:42,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:42,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 401 [2022-07-20 01:24:42,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:24:42,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:42,956 INFO L134 CoverageAnalysis]: Checked inductivity of 1148 backedges. 2 proven. 61 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2022-07-20 01:24:42,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:24:42,956 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082193705] [2022-07-20 01:24:42,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082193705] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 01:24:42,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590304700] [2022-07-20 01:24:42,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:24:42,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 01:24:42,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 01:24:42,958 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) [2022-07-20 01:24:42,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-20 01:24:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:24:44,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 4216 conjuncts, 15 conjunts are in the unsatisfiable core [2022-07-20 01:24:44,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:24:44,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1148 backedges. 528 proven. 3 refuted. 0 times theorem prover too weak. 617 trivial. 0 not checked. [2022-07-20 01:24:44,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 01:24:44,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1148 backedges. 12 proven. 51 refuted. 0 times theorem prover too weak. 1085 trivial. 0 not checked. [2022-07-20 01:24:44,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590304700] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 01:24:44,755 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-20 01:24:44,755 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 7] total 19 [2022-07-20 01:24:44,755 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455171562] [2022-07-20 01:24:44,756 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-20 01:24:44,756 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-20 01:24:44,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:24:44,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-20 01:24:44,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-07-20 01:24:44,757 INFO L87 Difference]: Start difference. First operand 16191 states and 23489 transitions. Second operand has 19 states, 17 states have (on average 12.705882352941176) internal successors, (216), 14 states have internal predecessors, (216), 4 states have call successors, (107), 7 states have call predecessors, (107), 7 states have return successors, (74), 5 states have call predecessors, (74), 4 states have call successors, (74) [2022-07-20 01:24:50,491 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:24:52,589 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:24:54,676 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:24:56,771 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:24:58,868 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:25:00,958 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:25:22,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:25:22,047 INFO L93 Difference]: Finished difference Result 40742 states and 62205 transitions. [2022-07-20 01:25:22,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-20 01:25:22,048 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 12.705882352941176) internal successors, (216), 14 states have internal predecessors, (216), 4 states have call successors, (107), 7 states have call predecessors, (107), 7 states have return successors, (74), 5 states have call predecessors, (74), 4 states have call successors, (74) Word has length 426 [2022-07-20 01:25:22,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:25:22,135 INFO L225 Difference]: With dead ends: 40742 [2022-07-20 01:25:22,136 INFO L226 Difference]: Without dead ends: 24560 [2022-07-20 01:25:22,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1009 GetRequests, 975 SyntacticMatches, 3 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=192, Invalid=864, Unknown=0, NotChecked=0, Total=1056 [2022-07-20 01:25:22,181 INFO L413 NwaCegarLoop]: 2759 mSDtfsCounter, 5980 mSDsluCounter, 22995 mSDsCounter, 0 mSdLazyCounter, 19717 mSolverCounterSat, 4979 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6225 SdHoareTripleChecker+Valid, 25754 SdHoareTripleChecker+Invalid, 24702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4979 IncrementalHoareTripleChecker+Valid, 19717 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.8s IncrementalHoareTripleChecker+Time [2022-07-20 01:25:22,181 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6225 Valid, 25754 Invalid, 24702 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4979 Valid, 19717 Invalid, 6 Unknown, 0 Unchecked, 35.8s Time] [2022-07-20 01:25:22,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24560 states. [2022-07-20 01:25:22,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24560 to 16200. [2022-07-20 01:25:22,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16200 states, 11522 states have (on average 1.3685992015275126) internal successors, (15769), 12110 states have internal predecessors, (15769), 3495 states have call successors, (3495), 1046 states have call predecessors, (3495), 1182 states have return successors, (4234), 3353 states have call predecessors, (4234), 3494 states have call successors, (4234) [2022-07-20 01:25:22,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16200 states to 16200 states and 23498 transitions. [2022-07-20 01:25:22,906 INFO L78 Accepts]: Start accepts. Automaton has 16200 states and 23498 transitions. Word has length 426 [2022-07-20 01:25:22,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:25:22,906 INFO L495 AbstractCegarLoop]: Abstraction has 16200 states and 23498 transitions. [2022-07-20 01:25:22,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 12.705882352941176) internal successors, (216), 14 states have internal predecessors, (216), 4 states have call successors, (107), 7 states have call predecessors, (107), 7 states have return successors, (74), 5 states have call predecessors, (74), 4 states have call successors, (74) [2022-07-20 01:25:22,907 INFO L276 IsEmpty]: Start isEmpty. Operand 16200 states and 23498 transitions. [2022-07-20 01:25:22,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2022-07-20 01:25:22,913 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:25:22,913 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 3, 3, 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] [2022-07-20 01:25:22,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-20 01:25:23,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 01:25:23,136 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:25:23,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:25:23,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1799233597, now seen corresponding path program 1 times [2022-07-20 01:25:23,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:25:23,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399452098] [2022-07-20 01:25:23,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:25:23,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:25:23,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:25:23,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:25:23,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:25:23,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:25:23,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:25:23,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:25:23,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:25:23,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:25:23,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:25:23,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:25:23,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:25:23,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:25:23,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 01:25:23,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:25:23,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:25:23,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 01:25:23,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:25:23,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:25:23,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 01:25:23,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:25:23,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:25:23,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 01:25:23,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:25:23,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:25:23,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 01:25:23,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:25:23,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-20 01:25:23,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:25:23,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-20 01:25:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:25:23,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2022-07-20 01:25:23,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:25:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-20 01:25:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:25:23,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-20 01:25:23,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:25:23,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-20 01:25:23,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:25:23,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2022-07-20 01:25:23,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:25:23,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:25:23,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-07-20 01:25:23,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:25:23,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:25:23,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2022-07-20 01:25:23,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-20 01:25:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:25:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2022-07-20 01:25:23,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:25:23,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:25:23,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2022-07-20 01:25:23,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:25:23,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:25:23,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:25:23,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-20 01:25:23,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:25:23,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-20 01:25:23,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 353 [2022-07-20 01:25:23,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2022-07-20 01:25:23,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2022-07-20 01:25:23,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:25:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-20 01:25:23,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2022-07-20 01:25:23,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2022-07-20 01:25:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:25:23,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 403 [2022-07-20 01:25:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2022-07-20 01:25:23,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:25:23,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:23,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 2 proven. 93 refuted. 0 times theorem prover too weak. 1170 trivial. 0 not checked. [2022-07-20 01:25:23,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:25:23,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399452098] [2022-07-20 01:25:23,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399452098] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 01:25:23,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [736859996] [2022-07-20 01:25:23,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:25:23,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 01:25:23,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 01:25:23,950 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 01:25:23,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-20 01:25:25,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:25:25,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 4263 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-20 01:25:25,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:25:25,593 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 502 proven. 3 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2022-07-20 01:25:25,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 01:25:26,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1265 backedges. 2 proven. 93 refuted. 0 times theorem prover too weak. 1170 trivial. 0 not checked. [2022-07-20 01:25:26,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [736859996] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 01:25:26,156 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-20 01:25:26,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 8] total 21 [2022-07-20 01:25:26,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277964224] [2022-07-20 01:25:26,158 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-20 01:25:26,159 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-20 01:25:26,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:25:26,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-20 01:25:26,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=365, Unknown=0, NotChecked=0, Total=420 [2022-07-20 01:25:26,161 INFO L87 Difference]: Start difference. First operand 16200 states and 23498 transitions. Second operand has 21 states, 19 states have (on average 11.736842105263158) internal successors, (223), 16 states have internal predecessors, (223), 4 states have call successors, (112), 7 states have call predecessors, (112), 6 states have return successors, (77), 4 states have call predecessors, (77), 4 states have call successors, (77) [2022-07-20 01:25:41,898 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-07-20 01:26:13,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-20 01:26:13,686 INFO L93 Difference]: Finished difference Result 40758 states and 62220 transitions. [2022-07-20 01:26:13,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-07-20 01:26:13,687 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 11.736842105263158) internal successors, (223), 16 states have internal predecessors, (223), 4 states have call successors, (112), 7 states have call predecessors, (112), 6 states have return successors, (77), 4 states have call predecessors, (77), 4 states have call successors, (77) Word has length 432 [2022-07-20 01:26:13,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-20 01:26:13,818 INFO L225 Difference]: With dead ends: 40758 [2022-07-20 01:26:13,818 INFO L226 Difference]: Without dead ends: 24564 [2022-07-20 01:26:13,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1029 GetRequests, 987 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=274, Invalid=1448, Unknown=0, NotChecked=0, Total=1722 [2022-07-20 01:26:13,886 INFO L413 NwaCegarLoop]: 2865 mSDtfsCounter, 5995 mSDsluCounter, 30332 mSDsCounter, 0 mSdLazyCounter, 24808 mSolverCounterSat, 4867 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6240 SdHoareTripleChecker+Valid, 33197 SdHoareTripleChecker+Invalid, 29676 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4867 IncrementalHoareTripleChecker+Valid, 24808 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.5s IncrementalHoareTripleChecker+Time [2022-07-20 01:26:13,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6240 Valid, 33197 Invalid, 29676 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4867 Valid, 24808 Invalid, 1 Unknown, 0 Unchecked, 45.5s Time] [2022-07-20 01:26:13,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24564 states. [2022-07-20 01:26:14,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24564 to 16204. [2022-07-20 01:26:14,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16204 states, 11526 states have (on average 1.368471282318237) internal successors, (15773), 12114 states have internal predecessors, (15773), 3495 states have call successors, (3495), 1046 states have call predecessors, (3495), 1182 states have return successors, (4234), 3353 states have call predecessors, (4234), 3494 states have call successors, (4234) [2022-07-20 01:26:14,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16204 states to 16204 states and 23502 transitions. [2022-07-20 01:26:14,672 INFO L78 Accepts]: Start accepts. Automaton has 16204 states and 23502 transitions. Word has length 432 [2022-07-20 01:26:14,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-20 01:26:14,673 INFO L495 AbstractCegarLoop]: Abstraction has 16204 states and 23502 transitions. [2022-07-20 01:26:14,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 11.736842105263158) internal successors, (223), 16 states have internal predecessors, (223), 4 states have call successors, (112), 7 states have call predecessors, (112), 6 states have return successors, (77), 4 states have call predecessors, (77), 4 states have call successors, (77) [2022-07-20 01:26:14,673 INFO L276 IsEmpty]: Start isEmpty. Operand 16204 states and 23502 transitions. [2022-07-20 01:26:14,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2022-07-20 01:26:14,680 INFO L187 NwaCegarLoop]: Found error trace [2022-07-20 01:26:14,680 INFO L195 NwaCegarLoop]: trace histogram [21, 13, 13, 13, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-20 01:26:14,727 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-07-20 01:26:14,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-20 01:26:14,896 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-20 01:26:14,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-20 01:26:14,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1550935245, now seen corresponding path program 2 times [2022-07-20 01:26:14,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-20 01:26:14,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480294630] [2022-07-20 01:26:14,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-20 01:26:14,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-20 01:26:15,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:26:15,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:26:15,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:26:15,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-20 01:26:15,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:26:15,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:26:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-20 01:26:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:26:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:26:15,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-20 01:26:15,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:26:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:26:15,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-07-20 01:26:15,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:26:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:26:15,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-07-20 01:26:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:26:15,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:26:15,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-20 01:26:15,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:26:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:26:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-20 01:26:15,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:26:15,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:26:15,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-20 01:26:15,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:26:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-20 01:26:15,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:26:15,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-20 01:26:15,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:26:15,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-20 01:26:15,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:26:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-07-20 01:26:15,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:26:15,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-20 01:26:15,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:26:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-20 01:26:15,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:26:15,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-20 01:26:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:26:15,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:26:15,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-20 01:26:15,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:26:15,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:26:15,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2022-07-20 01:26:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2022-07-20 01:26:15,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:26:15,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2022-07-20 01:26:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:26:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:26:15,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2022-07-20 01:26:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:26:15,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-20 01:26:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-20 01:26:15,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-07-20 01:26:15,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:26:15,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-20 01:26:15,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2022-07-20 01:26:15,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2022-07-20 01:26:15,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2022-07-20 01:26:15,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:26:15,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2022-07-20 01:26:15,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2022-07-20 01:26:15,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2022-07-20 01:26:15,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:26:15,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 415 [2022-07-20 01:26:15,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-20 01:26:15,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-20 01:26:15,601 INFO L134 CoverageAnalysis]: Checked inductivity of 1435 backedges. 2 proven. 138 refuted. 0 times theorem prover too weak. 1295 trivial. 0 not checked. [2022-07-20 01:26:15,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-20 01:26:15,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480294630] [2022-07-20 01:26:15,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480294630] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-20 01:26:15,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1221086872] [2022-07-20 01:26:15,601 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-20 01:26:15,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-20 01:26:15,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-20 01:26:15,603 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-20 01:26:15,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-20 01:26:20,964 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-20 01:26:20,964 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-20 01:26:21,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 4426 conjuncts, 23 conjunts are in the unsatisfiable core [2022-07-20 01:26:21,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-20 01:26:21,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1435 backedges. 650 proven. 21 refuted. 0 times theorem prover too weak. 764 trivial. 0 not checked. [2022-07-20 01:26:21,222 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-20 01:26:21,889 INFO L134 CoverageAnalysis]: Checked inductivity of 1435 backedges. 24 proven. 116 refuted. 0 times theorem prover too weak. 1295 trivial. 0 not checked. [2022-07-20 01:26:21,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1221086872] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-20 01:26:21,889 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-20 01:26:21,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 9] total 24 [2022-07-20 01:26:21,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504538347] [2022-07-20 01:26:21,889 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-20 01:26:21,890 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-20 01:26:21,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-20 01:26:21,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-20 01:26:21,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2022-07-20 01:26:21,891 INFO L87 Difference]: Start difference. First operand 16204 states and 23502 transitions. Second operand has 24 states, 22 states have (on average 10.045454545454545) internal successors, (221), 19 states have internal predecessors, (221), 4 states have call successors, (107), 7 states have call predecessors, (107), 7 states have return successors, (74), 5 states have call predecessors, (74), 4 states have call successors, (74) [2022-07-20 01:26:32,135 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:26:34,224 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:26:36,314 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:26:38,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:26:40,497 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:26:42,590 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:26:44,681 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:26:46,770 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-20 01:26:48,861 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []