./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 839c364b 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 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 18:19:28,760 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 18:19:28,762 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 18:19:28,790 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 18:19:28,794 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 18:19:28,797 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 18:19:28,799 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 18:19:28,814 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 18:19:28,815 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 18:19:28,820 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 18:19:28,821 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 18:19:28,822 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 18:19:28,822 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 18:19:28,824 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 18:19:28,825 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 18:19:28,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 18:19:28,830 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 18:19:28,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 18:19:28,834 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 18:19:28,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 18:19:28,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 18:19:28,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 18:19:28,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 18:19:28,850 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 18:19:28,855 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 18:19:28,856 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 18:19:28,856 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 18:19:28,857 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 18:19:28,857 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 18:19:28,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 18:19:28,858 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 18:19:28,859 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 18:19:28,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 18:19:28,861 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 18:19:28,861 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 18:19:28,862 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 18:19:28,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 18:19:28,862 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 18:19:28,862 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 18:19:28,863 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 18:19:28,863 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 18:19:28,864 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 18:19:28,890 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 18:19:28,890 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 18:19:28,891 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 18:19:28,891 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 18:19:28,892 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 18:19:28,892 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 18:19:28,893 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 18:19:28,893 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 18:19:28,893 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 18:19:28,893 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 18:19:28,894 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 18:19:28,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 18:19:28,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 18:19:28,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 18:19:28,894 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 18:19:28,894 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 18:19:28,894 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 18:19:28,895 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 18:19:28,895 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 18:19:28,895 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 18:19:28,895 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 18:19:28,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:19:28,895 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 18:19:28,895 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 18:19:28,896 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 18:19:28,896 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 18:19:28,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 18:19:28,897 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 18:19:28,897 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 18:19:28,897 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 18:19:28,897 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 18:19:28,897 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7918e78c7fa8e57a6cd382ed800c3c73f2f498c616ea3e9ed6a8775509cf80ff [2021-12-14 18:19:29,180 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 18:19:29,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 18:19:29,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 18:19:29,219 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 18:19:29,220 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 18:19:29,221 INFO L432 ainManager$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 [2021-12-14 18:19:29,276 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/131466e8d/ba04b1f4a5774bf58815e1e1d6c38c97/FLAG6fcc49321 [2021-12-14 18:19:30,215 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 18:19:30,216 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 [2021-12-14 18:19:30,270 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/131466e8d/ba04b1f4a5774bf58815e1e1d6c38c97/FLAG6fcc49321 [2021-12-14 18:19:30,318 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/131466e8d/ba04b1f4a5774bf58815e1e1d6c38c97 [2021-12-14 18:19:30,322 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 18:19:30,323 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 18:19:30,324 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 18:19:30,324 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 18:19:30,326 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 18:19:30,326 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:19:30" (1/1) ... [2021-12-14 18:19:30,327 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2efacdfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:30, skipping insertion in model container [2021-12-14 18:19:30,327 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:19:30" (1/1) ... [2021-12-14 18:19:30,343 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 18:19:30,553 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 18:19:32,394 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] [2021-12-14 18:19:32,430 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:19:32,472 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 18:19:32,736 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] [2021-12-14 18:19:32,747 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:19:32,833 INFO L208 MainTranslator]: Completed translation [2021-12-14 18:19:32,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:32 WrapperNode [2021-12-14 18:19:32,834 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 18:19:32,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 18:19:32,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 18:19:32,836 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 18:19:32,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:32" (1/1) ... [2021-12-14 18:19:32,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:32" (1/1) ... [2021-12-14 18:19:33,069 INFO L137 Inliner]: procedures = 336, calls = 2288, calls flagged for inlining = 154, calls inlined = 152, statements flattened = 5807 [2021-12-14 18:19:33,070 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 18:19:33,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 18:19:33,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 18:19:33,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 18:19:33,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:32" (1/1) ... [2021-12-14 18:19:33,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:32" (1/1) ... [2021-12-14 18:19:33,094 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:32" (1/1) ... [2021-12-14 18:19:33,095 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:32" (1/1) ... [2021-12-14 18:19:33,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:32" (1/1) ... [2021-12-14 18:19:33,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:32" (1/1) ... [2021-12-14 18:19:33,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:32" (1/1) ... [2021-12-14 18:19:33,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 18:19:33,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 18:19:33,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 18:19:33,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 18:19:33,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:32" (1/1) ... [2021-12-14 18:19:33,230 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:19:33,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:19:33,277 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 18:19:33,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 18:19:33,310 INFO L130 BoogieDeclarations]: Found specification of procedure find_comp_entry [2021-12-14 18:19:33,311 INFO L138 BoogieDeclarations]: Found implementation of procedure find_comp_entry [2021-12-14 18:19:33,311 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-14 18:19:33,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2021-12-14 18:19:33,311 INFO L130 BoogieDeclarations]: Found specification of procedure skb_dequeue [2021-12-14 18:19:33,311 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_dequeue [2021-12-14 18:19:33,311 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_bh [2021-12-14 18:19:33,311 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_bh [2021-12-14 18:19:33,312 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-12-14 18:19:33,312 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_bh [2021-12-14 18:19:33,312 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_bh [2021-12-14 18:19:33,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 18:19:33,312 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2021-12-14 18:19:33,312 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2021-12-14 18:19:33,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 18:19:33,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 18:19:33,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 18:19:33,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-14 18:19:33,314 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-14 18:19:33,314 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2021-12-14 18:19:33,314 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2021-12-14 18:19:33,314 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2021-12-14 18:19:33,314 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2021-12-14 18:19:33,314 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_xmit_process [2021-12-14 18:19:33,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_xmit_process [2021-12-14 18:19:33,314 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2021-12-14 18:19:33,315 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2021-12-14 18:19:33,315 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_shutdown_interface [2021-12-14 18:19:33,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_shutdown_interface [2021-12-14 18:19:33,315 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_interface [2021-12-14 18:19:33,315 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_interface [2021-12-14 18:19:33,315 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-14 18:19:33,316 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-14 18:19:33,316 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-14 18:19:33,316 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-14 18:19:33,316 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-14 18:19:33,316 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-14 18:19:33,316 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-14 18:19:33,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-14 18:19:33,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 18:19:33,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 18:19:33,317 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock_bh [2021-12-14 18:19:33,317 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock_bh [2021-12-14 18:19:33,317 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_destroy [2021-12-14 18:19:33,317 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_destroy [2021-12-14 18:19:33,317 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_push [2021-12-14 18:19:33,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_push [2021-12-14 18:19:33,317 INFO L130 BoogieDeclarations]: Found specification of procedure unit_find [2021-12-14 18:19:33,318 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_find [2021-12-14 18:19:33,318 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-14 18:19:33,318 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-14 18:19:33,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 18:19:33,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 18:19:33,318 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_be16 [2021-12-14 18:19:33,319 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_be16 [2021-12-14 18:19:33,319 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-14 18:19:33,319 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-14 18:19:33,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 18:19:33,320 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 18:19:33,321 INFO L130 BoogieDeclarations]: Found specification of procedure init_ppp_file [2021-12-14 18:19:33,321 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ppp_file [2021-12-14 18:19:33,321 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 18:19:33,321 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 18:19:33,321 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-14 18:19:33,321 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-14 18:19:33,321 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-14 18:19:33,322 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-14 18:19:33,322 INFO L130 BoogieDeclarations]: Found specification of procedure skb_peek [2021-12-14 18:19:33,322 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_peek [2021-12-14 18:19:33,322 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_release [2021-12-14 18:19:33,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_release [2021-12-14 18:19:33,323 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-14 18:19:33,323 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-14 18:19:33,323 INFO L130 BoogieDeclarations]: Found specification of procedure get_filter [2021-12-14 18:19:33,323 INFO L138 BoogieDeclarations]: Found implementation of procedure get_filter [2021-12-14 18:19:33,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 18:19:33,323 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-14 18:19:33,323 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-14 18:19:33,323 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2021-12-14 18:19:33,323 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2021-12-14 18:19:33,324 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2021-12-14 18:19:33,324 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2021-12-14 18:19:33,324 INFO L130 BoogieDeclarations]: Found specification of procedure bpf_prog_create [2021-12-14 18:19:33,324 INFO L138 BoogieDeclarations]: Found implementation of procedure bpf_prog_create [2021-12-14 18:19:33,324 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 18:19:33,324 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_get_stats64 [2021-12-14 18:19:33,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_get_stats64 [2021-12-14 18:19:33,324 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-12-14 18:19:33,324 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-12-14 18:19:33,325 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-14 18:19:33,325 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-14 18:19:33,325 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_send_frame [2021-12-14 18:19:33,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_send_frame [2021-12-14 18:19:33,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-14 18:19:33,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-14 18:19:33,326 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-14 18:19:33,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-14 18:19:33,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 18:19:33,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 18:19:33,327 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_error [2021-12-14 18:19:33,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_error [2021-12-14 18:19:33,327 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_find_unit [2021-12-14 18:19:33,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_find_unit [2021-12-14 18:19:33,328 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-12-14 18:19:33,328 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-12-14 18:19:33,328 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-12-14 18:19:33,328 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-12-14 18:19:33,328 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2021-12-14 18:19:33,328 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2021-12-14 18:19:33,328 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-14 18:19:33,329 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-14 18:19:33,329 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-14 18:19:33,329 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-14 18:19:33,329 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_channel_push [2021-12-14 18:19:33,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_channel_push [2021-12-14 18:19:33,329 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-14 18:19:33,329 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-14 18:19:33,330 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-14 18:19:33,330 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-14 18:19:33,332 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-14 18:19:33,332 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-14 18:19:33,332 INFO L130 BoogieDeclarations]: Found specification of procedure find_compressor [2021-12-14 18:19:33,332 INFO L138 BoogieDeclarations]: Found implementation of procedure find_compressor [2021-12-14 18:19:33,333 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_pernet [2021-12-14 18:19:33,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_pernet [2021-12-14 18:19:33,334 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-14 18:19:33,334 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-14 18:19:33,334 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2021-12-14 18:19:33,339 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2021-12-14 18:19:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 18:19:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_pernet_device [2021-12-14 18:19:33,339 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_pernet_device [2021-12-14 18:19:33,339 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-14 18:19:33,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-14 18:19:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_disconnect_channel [2021-12-14 18:19:33,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_disconnect_channel [2021-12-14 18:19:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_net_ioctl [2021-12-14 18:19:33,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_net_ioctl [2021-12-14 18:19:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 18:19:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock_bh [2021-12-14 18:19:33,340 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock_bh [2021-12-14 18:19:33,340 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-14 18:19:33,340 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-14 18:19:33,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 18:19:33,411 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-14 18:19:33,411 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-14 18:19:33,412 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headroom [2021-12-14 18:19:33,412 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headroom [2021-12-14 18:19:33,412 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_output_wakeup [2021-12-14 18:19:33,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_output_wakeup [2021-12-14 18:19:33,412 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_exit_net [2021-12-14 18:19:33,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_exit_net [2021-12-14 18:19:33,412 INFO L130 BoogieDeclarations]: Found specification of procedure slhc_free [2021-12-14 18:19:33,412 INFO L138 BoogieDeclarations]: Found implementation of procedure slhc_free [2021-12-14 18:19:33,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 18:19:33,412 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 18:19:33,412 INFO L130 BoogieDeclarations]: Found specification of procedure skb_cloned [2021-12-14 18:19:33,412 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_cloned [2021-12-14 18:19:33,412 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_do_recv [2021-12-14 18:19:33,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_do_recv [2021-12-14 18:19:33,412 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_unregister_channel [2021-12-14 18:19:33,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_unregister_channel [2021-12-14 18:19:33,412 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_be16 [2021-12-14 18:19:33,412 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_be16 [2021-12-14 18:19:33,412 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-12-14 18:19:33,412 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-12-14 18:19:33,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-14 18:19:33,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-14 18:19:33,413 INFO L130 BoogieDeclarations]: Found specification of procedure proto_to_npindex [2021-12-14 18:19:33,413 INFO L138 BoogieDeclarations]: Found implementation of procedure proto_to_npindex [2021-12-14 18:19:33,413 INFO L130 BoogieDeclarations]: Found specification of procedure net_generic [2021-12-14 18:19:33,413 INFO L138 BoogieDeclarations]: Found implementation of procedure net_generic [2021-12-14 18:19:33,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_39 [2021-12-14 18:19:33,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_39 [2021-12-14 18:19:33,413 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 18:19:33,413 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 18:19:33,413 INFO L130 BoogieDeclarations]: Found specification of procedure unit_put [2021-12-14 18:19:33,413 INFO L138 BoogieDeclarations]: Found implementation of procedure unit_put [2021-12-14 18:19:33,413 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_receive_nonmp_frame [2021-12-14 18:19:33,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_receive_nonmp_frame [2021-12-14 18:19:33,413 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2021-12-14 18:19:33,413 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2021-12-14 18:19:33,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 18:19:33,413 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-14 18:19:33,413 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-14 18:19:33,413 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2021-12-14 18:19:33,413 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2021-12-14 18:19:33,413 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-12-14 18:19:33,413 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-12-14 18:19:33,413 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_write [2021-12-14 18:19:33,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_write [2021-12-14 18:19:33,414 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-12-14 18:19:33,414 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-12-14 18:19:33,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 18:19:33,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 18:19:33,414 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2021-12-14 18:19:33,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2021-12-14 18:19:33,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-12-14 18:19:33,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-12-14 18:19:33,414 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_closed [2021-12-14 18:19:33,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_closed [2021-12-14 18:19:33,414 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_open [2021-12-14 18:19:33,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_open [2021-12-14 18:19:33,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 18:19:33,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-12-14 18:19:33,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-12-14 18:19:33,414 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-14 18:19:33,414 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-14 18:19:33,414 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2021-12-14 18:19:33,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2021-12-14 18:19:33,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 18:19:33,414 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-14 18:19:33,414 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-14 18:19:33,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 18:19:33,415 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-12-14 18:19:33,415 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-12-14 18:19:33,415 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-14 18:19:33,415 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2021-12-14 18:19:33,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~$Pointer$ [2021-12-14 18:19:33,415 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 18:19:33,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 18:19:33,415 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-12-14 18:19:33,415 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-12-14 18:19:33,415 INFO L130 BoogieDeclarations]: Found specification of procedure idr_alloc [2021-12-14 18:19:33,415 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_alloc [2021-12-14 18:19:33,415 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-12-14 18:19:33,415 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-12-14 18:19:33,415 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-14 18:19:33,415 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-14 18:19:33,415 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-14 18:19:33,415 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-14 18:19:33,415 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_long_read [2021-12-14 18:19:33,415 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_long_read [2021-12-14 18:19:33,415 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2021-12-14 18:19:33,415 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2021-12-14 18:19:33,415 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2021-12-14 18:19:33,416 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2021-12-14 18:19:33,416 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-14 18:19:33,416 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-14 18:19:33,416 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_register_net_channel [2021-12-14 18:19:33,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_register_net_channel [2021-12-14 18:19:33,416 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-14 18:19:33,416 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-14 18:19:33,416 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_mp_explode [2021-12-14 18:19:33,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_mp_explode [2021-12-14 18:19:33,418 INFO L130 BoogieDeclarations]: Found specification of procedure pskb_may_pull [2021-12-14 18:19:33,418 INFO L138 BoogieDeclarations]: Found implementation of procedure pskb_may_pull [2021-12-14 18:19:33,418 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-14 18:19:33,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2021-12-14 18:19:33,418 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ioctl [2021-12-14 18:19:33,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ioctl [2021-12-14 18:19:33,418 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_ccp_peek [2021-12-14 18:19:33,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_ccp_peek [2021-12-14 18:19:33,418 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_poll [2021-12-14 18:19:33,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_poll [2021-12-14 18:19:33,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 18:19:33,419 INFO L130 BoogieDeclarations]: Found specification of procedure ppp_destroy_channel [2021-12-14 18:19:33,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ppp_destroy_channel [2021-12-14 18:19:33,419 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-14 18:19:33,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-12-14 18:19:33,419 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 18:19:33,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 18:19:33,419 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2021-12-14 18:19:33,419 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2021-12-14 18:19:33,419 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-14 18:19:33,419 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-14 18:19:33,995 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 18:19:33,997 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 18:19:34,371 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 18:19:36,657 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 18:19:36,672 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 18:19:36,672 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 18:19:36,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:19:36 BoogieIcfgContainer [2021-12-14 18:19:36,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 18:19:36,677 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 18:19:36,677 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 18:19:36,681 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 18:19:36,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:19:30" (1/3) ... [2021-12-14 18:19:36,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9758b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:19:36, skipping insertion in model container [2021-12-14 18:19:36,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:19:32" (2/3) ... [2021-12-14 18:19:36,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d9758b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:19:36, skipping insertion in model container [2021-12-14 18:19:36,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:19:36" (3/3) ... [2021-12-14 18:19:36,684 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ppp--ppp_generic.ko-entry_point.cil.out.i [2021-12-14 18:19:36,687 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 18:19:36,688 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 18:19:36,734 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 18:19:36,738 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 18:19:36,739 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 18:19:36,779 INFO L276 IsEmpty]: Start isEmpty. Operand has 2111 states, 1470 states have (on average 1.3741496598639455) internal successors, (2020), 1539 states have internal predecessors, (2020), 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) [2021-12-14 18:19:36,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-12-14 18:19:36,789 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:19:36,790 INFO L514 BasicCegarLoop]: 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] [2021-12-14 18:19:36,790 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:19:36,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:19:36,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1725555395, now seen corresponding path program 1 times [2021-12-14 18:19:36,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:19:36,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557074937] [2021-12-14 18:19:36,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:19:36,801 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:19:37,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:19:37,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:37,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:37,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:19:37,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:37,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:37,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:19:37,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:37,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:37,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:19:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:37,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:19:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:37,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:19:37,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:37,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:37,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 18:19:37,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:37,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:37,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:19:37,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:37,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:37,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 18:19:37,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-14 18:19:37,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:37,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-14 18:19:37,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:37,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-14 18:19:37,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:37,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-14 18:19:37,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:37,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-14 18:19:37,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-14 18:19:37,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:37,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:37,906 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-12-14 18:19:37,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:19:37,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557074937] [2021-12-14 18:19:37,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557074937] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:19:37,907 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:19:37,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:19:37,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387546216] [2021-12-14 18:19:37,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:19:37,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:19:37,913 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:19:37,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:19:37,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:19:37,954 INFO L87 Difference]: Start difference. First operand has 2111 states, 1470 states have (on average 1.3741496598639455) internal successors, (2020), 1539 states have internal predecessors, (2020), 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) [2021-12-14 18:19:42,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:19:42,860 INFO L93 Difference]: Finished difference Result 4766 states and 7185 transitions. [2021-12-14 18:19:42,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 18:19:42,864 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 [2021-12-14 18:19:42,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:19:42,901 INFO L225 Difference]: With dead ends: 4766 [2021-12-14 18:19:42,902 INFO L226 Difference]: Without dead ends: 2632 [2021-12-14 18:19:42,917 INFO L932 BasicCegarLoop]: 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 [2021-12-14 18:19:42,922 INFO L933 BasicCegarLoop]: 2852 mSDtfsCounter, 1865 mSDsluCounter, 3514 mSDsCounter, 0 mSdLazyCounter, 2821 mSolverCounterSat, 1455 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1982 SdHoareTripleChecker+Valid, 6366 SdHoareTripleChecker+Invalid, 4276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1455 IncrementalHoareTripleChecker+Valid, 2821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2021-12-14 18:19:42,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1982 Valid, 6366 Invalid, 4276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1455 Valid, 2821 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2021-12-14 18:19:42,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2632 states. [2021-12-14 18:19:43,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2632 to 2083. [2021-12-14 18:19:43,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2083 states, 1453 states have (on average 1.3688919476944252) internal successors, (1989), 1515 states have internal predecessors, (1989), 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) [2021-12-14 18:19:43,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2083 states to 2083 states and 3002 transitions. [2021-12-14 18:19:43,099 INFO L78 Accepts]: Start accepts. Automaton has 2083 states and 3002 transitions. Word has length 225 [2021-12-14 18:19:43,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:19:43,100 INFO L470 AbstractCegarLoop]: Abstraction has 2083 states and 3002 transitions. [2021-12-14 18:19:43,100 INFO L471 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) [2021-12-14 18:19:43,101 INFO L276 IsEmpty]: Start isEmpty. Operand 2083 states and 3002 transitions. [2021-12-14 18:19:43,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-12-14 18:19:43,109 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:19:43,109 INFO L514 BasicCegarLoop]: 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] [2021-12-14 18:19:43,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 18:19:43,110 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:19:43,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:19:43,110 INFO L85 PathProgramCache]: Analyzing trace with hash 325950643, now seen corresponding path program 1 times [2021-12-14 18:19:43,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:19:43,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694258423] [2021-12-14 18:19:43,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:19:43,111 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:19:43,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:19:43,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:43,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:43,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:19:43,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:43,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:43,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:19:43,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:43,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:43,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:19:43,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:43,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:43,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:19:43,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:43,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:43,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:19:43,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:43,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:43,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 18:19:43,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:43,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:19:43,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:43,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:43,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 18:19:43,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:43,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-14 18:19:43,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:43,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-14 18:19:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:43,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-14 18:19:43,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:43,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-14 18:19:43,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-14 18:19:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:43,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-14 18:19:43,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:43,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:43,631 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-12-14 18:19:43,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:19:43,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694258423] [2021-12-14 18:19:43,632 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694258423] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:19:43,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:19:43,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:19:43,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508115193] [2021-12-14 18:19:43,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:19:43,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:19:43,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:19:43,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:19:43,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:19:43,636 INFO L87 Difference]: Start difference. First operand 2083 states and 3002 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) [2021-12-14 18:19:52,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:19:52,078 INFO L93 Difference]: Finished difference Result 6572 states and 9704 transitions. [2021-12-14 18:19:52,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:19:52,079 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 [2021-12-14 18:19:52,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:19:52,101 INFO L225 Difference]: With dead ends: 6572 [2021-12-14 18:19:52,101 INFO L226 Difference]: Without dead ends: 4527 [2021-12-14 18:19:52,110 INFO L932 BasicCegarLoop]: 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 [2021-12-14 18:19:52,113 INFO L933 BasicCegarLoop]: 3320 mSDtfsCounter, 5002 mSDsluCounter, 6202 mSDsCounter, 0 mSdLazyCounter, 4784 mSolverCounterSat, 2749 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5316 SdHoareTripleChecker+Valid, 9522 SdHoareTripleChecker+Invalid, 7533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2749 IncrementalHoareTripleChecker+Valid, 4784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2021-12-14 18:19:52,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5316 Valid, 9522 Invalid, 7533 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2749 Valid, 4784 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2021-12-14 18:19:52,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4527 states. [2021-12-14 18:19:52,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4527 to 3507. [2021-12-14 18:19:52,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3507 states, 2453 states have (on average 1.3660823481451285) internal successors, (3351), 2564 states have internal predecessors, (3351), 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) [2021-12-14 18:19:52,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3507 states to 3507 states and 5000 transitions. [2021-12-14 18:19:52,230 INFO L78 Accepts]: Start accepts. Automaton has 3507 states and 5000 transitions. Word has length 225 [2021-12-14 18:19:52,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:19:52,232 INFO L470 AbstractCegarLoop]: Abstraction has 3507 states and 5000 transitions. [2021-12-14 18:19:52,232 INFO L471 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) [2021-12-14 18:19:52,232 INFO L276 IsEmpty]: Start isEmpty. Operand 3507 states and 5000 transitions. [2021-12-14 18:19:52,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2021-12-14 18:19:52,235 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:19:52,236 INFO L514 BasicCegarLoop]: 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] [2021-12-14 18:19:52,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 18:19:52,236 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:19:52,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:19:52,237 INFO L85 PathProgramCache]: Analyzing trace with hash -428118917, now seen corresponding path program 1 times [2021-12-14 18:19:52,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:19:52,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917209743] [2021-12-14 18:19:52,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:19:52,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:19:52,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:19:52,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:52,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:52,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:19:52,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:52,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:52,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:19:52,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:52,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:52,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:19:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:52,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:52,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:19:52,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:52,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:52,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:19:52,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:52,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:52,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 18:19:52,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:52,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:52,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:19:52,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:19:52,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 18:19:52,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:52,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-14 18:19:52,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:52,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-14 18:19:52,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:52,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-14 18:19:52,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:52,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-14 18:19:52,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:52,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-14 18:19:52,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:52,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-14 18:19:52,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:19:52,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-12-14 18:19:52,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-14 18:19:52,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-14 18:19:52,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:19:52,637 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 581 trivial. 0 not checked. [2021-12-14 18:19:52,637 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:19:52,637 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917209743] [2021-12-14 18:19:52,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917209743] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:19:52,638 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:19:52,638 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:19:52,638 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069741761] [2021-12-14 18:19:52,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:19:52,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:19:52,639 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:19:52,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:19:52,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:19:52,640 INFO L87 Difference]: Start difference. First operand 3507 states and 5000 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) [2021-12-14 18:20:00,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:20:00,230 INFO L93 Difference]: Finished difference Result 12161 states and 18000 transitions. [2021-12-14 18:20:00,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:20:00,231 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 [2021-12-14 18:20:00,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:20:00,276 INFO L225 Difference]: With dead ends: 12161 [2021-12-14 18:20:00,277 INFO L226 Difference]: Without dead ends: 8692 [2021-12-14 18:20:00,366 INFO L932 BasicCegarLoop]: 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 [2021-12-14 18:20:00,368 INFO L933 BasicCegarLoop]: 3568 mSDtfsCounter, 8164 mSDsluCounter, 4275 mSDsCounter, 0 mSdLazyCounter, 3229 mSolverCounterSat, 4829 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8541 SdHoareTripleChecker+Valid, 7843 SdHoareTripleChecker+Invalid, 8058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4829 IncrementalHoareTripleChecker+Valid, 3229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2021-12-14 18:20:00,369 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8541 Valid, 7843 Invalid, 8058 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4829 Valid, 3229 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2021-12-14 18:20:00,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8692 states. [2021-12-14 18:20:00,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8692 to 7094. [2021-12-14 18:20:00,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7094 states, 4951 states have (on average 1.362754998990103) internal successors, (6747), 5199 states have internal predecessors, (6747), 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) [2021-12-14 18:20:00,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7094 states to 7094 states and 10251 transitions. [2021-12-14 18:20:00,655 INFO L78 Accepts]: Start accepts. Automaton has 7094 states and 10251 transitions. Word has length 246 [2021-12-14 18:20:00,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:20:00,656 INFO L470 AbstractCegarLoop]: Abstraction has 7094 states and 10251 transitions. [2021-12-14 18:20:00,657 INFO L471 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) [2021-12-14 18:20:00,657 INFO L276 IsEmpty]: Start isEmpty. Operand 7094 states and 10251 transitions. [2021-12-14 18:20:00,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2021-12-14 18:20:00,660 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:20:00,660 INFO L514 BasicCegarLoop]: 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] [2021-12-14 18:20:00,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 18:20:00,661 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:20:00,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:20:00,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1130457575, now seen corresponding path program 1 times [2021-12-14 18:20:00,661 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:20:00,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896069858] [2021-12-14 18:20:00,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:20:00,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:20:00,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:00,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:20:00,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:00,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:00,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:00,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:20:00,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:00,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:00,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:00,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:00,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:00,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:20:00,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:00,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:00,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:00,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:00,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:20:00,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:00,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:00,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:00,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:00,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:00,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:20:00,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:00,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:00,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:00,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:00,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:00,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:20:00,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:00,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:00,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:00,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:00,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:00,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 18:20:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:01,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:01,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:01,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:01,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:01,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:20:01,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:01,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:01,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:01,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:01,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:01,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 18:20:01,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:01,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:01,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:01,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-14 18:20:01,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:01,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:01,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:01,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-14 18:20:01,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:01,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:01,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:01,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-14 18:20:01,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:01,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:01,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:01,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-14 18:20:01,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:01,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:01,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:01,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-14 18:20:01,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:01,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:01,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:01,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-14 18:20:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:01,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:01,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:01,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-14 18:20:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:01,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:01,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:01,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:01,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:01,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-14 18:20:01,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:01,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:01,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:01,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:01,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:01,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-14 18:20:01,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:01,135 INFO L134 CoverageAnalysis]: Checked inductivity of 822 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 819 trivial. 0 not checked. [2021-12-14 18:20:01,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:20:01,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896069858] [2021-12-14 18:20:01,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896069858] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:20:01,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:20:01,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:20:01,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171000359] [2021-12-14 18:20:01,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:20:01,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:20:01,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:20:01,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:20:01,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:20:01,138 INFO L87 Difference]: Start difference. First operand 7094 states and 10251 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) [2021-12-14 18:20:05,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:20:05,582 INFO L93 Difference]: Finished difference Result 15700 states and 23195 transitions. [2021-12-14 18:20:05,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:20:05,583 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 [2021-12-14 18:20:05,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:20:05,649 INFO L225 Difference]: With dead ends: 15700 [2021-12-14 18:20:05,649 INFO L226 Difference]: Without dead ends: 8648 [2021-12-14 18:20:05,672 INFO L932 BasicCegarLoop]: 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 [2021-12-14 18:20:05,673 INFO L933 BasicCegarLoop]: 2772 mSDtfsCounter, 4614 mSDsluCounter, 2481 mSDsCounter, 0 mSdLazyCounter, 2202 mSolverCounterSat, 2143 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4917 SdHoareTripleChecker+Valid, 5253 SdHoareTripleChecker+Invalid, 4345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2143 IncrementalHoareTripleChecker+Valid, 2202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-12-14 18:20:05,674 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4917 Valid, 5253 Invalid, 4345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2143 Valid, 2202 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2021-12-14 18:20:05,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8648 states. [2021-12-14 18:20:05,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8648 to 7094. [2021-12-14 18:20:05,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7094 states, 4951 states have (on average 1.3619470813976975) internal successors, (6743), 5199 states have internal predecessors, (6743), 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) [2021-12-14 18:20:05,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7094 states to 7094 states and 10247 transitions. [2021-12-14 18:20:05,923 INFO L78 Accepts]: Start accepts. Automaton has 7094 states and 10247 transitions. Word has length 279 [2021-12-14 18:20:05,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:20:05,924 INFO L470 AbstractCegarLoop]: Abstraction has 7094 states and 10247 transitions. [2021-12-14 18:20:05,924 INFO L471 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) [2021-12-14 18:20:05,925 INFO L276 IsEmpty]: Start isEmpty. Operand 7094 states and 10247 transitions. [2021-12-14 18:20:05,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2021-12-14 18:20:05,927 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:20:05,927 INFO L514 BasicCegarLoop]: 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] [2021-12-14 18:20:05,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 18:20:05,928 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:20:05,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:20:05,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1804034930, now seen corresponding path program 1 times [2021-12-14 18:20:05,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:20:05,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069802332] [2021-12-14 18:20:05,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:20:05,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:20:05,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:20:06,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:06,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:20:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:06,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:20:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:20:06,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:20:06,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:06,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:06,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:20:06,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:06,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:06,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 18:20:06,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:06,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:06,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:20:06,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:06,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:06,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 18:20:06,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:06,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-14 18:20:06,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:06,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-14 18:20:06,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:06,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-14 18:20:06,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:06,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-14 18:20:06,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:06,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-14 18:20:06,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:06,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-14 18:20:06,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:06,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-14 18:20:06,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:06,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:06,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-14 18:20:06,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:06,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:06,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-14 18:20:06,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-12-14 18:20:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:06,454 INFO L134 CoverageAnalysis]: Checked inductivity of 962 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 962 trivial. 0 not checked. [2021-12-14 18:20:06,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:20:06,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069802332] [2021-12-14 18:20:06,454 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069802332] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:20:06,454 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:20:06,454 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:20:06,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902969851] [2021-12-14 18:20:06,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:20:06,455 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:20:06,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:20:06,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:20:06,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:20:06,456 INFO L87 Difference]: Start difference. First operand 7094 states and 10247 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) [2021-12-14 18:20:12,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:20:12,463 INFO L93 Difference]: Finished difference Result 13319 states and 20079 transitions. [2021-12-14 18:20:12,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:20:12,463 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 [2021-12-14 18:20:12,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:20:12,572 INFO L225 Difference]: With dead ends: 13319 [2021-12-14 18:20:12,572 INFO L226 Difference]: Without dead ends: 13316 [2021-12-14 18:20:12,580 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-14 18:20:12,588 INFO L933 BasicCegarLoop]: 3637 mSDtfsCounter, 4705 mSDsluCounter, 4435 mSDsCounter, 0 mSdLazyCounter, 3614 mSolverCounterSat, 2318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4950 SdHoareTripleChecker+Valid, 8072 SdHoareTripleChecker+Invalid, 5932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2318 IncrementalHoareTripleChecker+Valid, 3614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-12-14 18:20:12,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4950 Valid, 8072 Invalid, 5932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2318 Valid, 3614 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2021-12-14 18:20:12,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13316 states. [2021-12-14 18:20:12,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13316 to 10474. [2021-12-14 18:20:12,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10474 states, 7413 states have (on average 1.3694860380412788) internal successors, (10152), 7784 states have internal predecessors, (10152), 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) [2021-12-14 18:20:13,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10474 states to 10474 states and 15098 transitions. [2021-12-14 18:20:13,003 INFO L78 Accepts]: Start accepts. Automaton has 10474 states and 15098 transitions. Word has length 296 [2021-12-14 18:20:13,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:20:13,004 INFO L470 AbstractCegarLoop]: Abstraction has 10474 states and 15098 transitions. [2021-12-14 18:20:13,004 INFO L471 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) [2021-12-14 18:20:13,005 INFO L276 IsEmpty]: Start isEmpty. Operand 10474 states and 15098 transitions. [2021-12-14 18:20:13,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2021-12-14 18:20:13,012 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:20:13,012 INFO L514 BasicCegarLoop]: 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] [2021-12-14 18:20:13,013 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-14 18:20:13,013 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:20:13,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:20:13,013 INFO L85 PathProgramCache]: Analyzing trace with hash -2054996054, now seen corresponding path program 1 times [2021-12-14 18:20:13,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:20:13,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781653914] [2021-12-14 18:20:13,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:20:13,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:20:13,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:20:13,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:13,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:13,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:20:13,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:13,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:20:13,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:13,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:13,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:20:13,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:13,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:13,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:20:13,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:13,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:13,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:20:13,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:13,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:13,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 18:20:13,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:13,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:13,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:20:13,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:13,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:13,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 18:20:13,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:13,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-14 18:20:13,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:13,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-14 18:20:13,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:13,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-14 18:20:13,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:13,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-14 18:20:13,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:13,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-14 18:20:13,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:13,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-14 18:20:13,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:13,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-14 18:20:13,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:13,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-14 18:20:13,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:13,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:13,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-14 18:20:13,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-12-14 18:20:13,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:13,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:13,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-12-14 18:20:13,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:13,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:13,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-12-14 18:20:13,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-12-14 18:20:13,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-12-14 18:20:13,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:13,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 18:20:13,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 334 [2021-12-14 18:20:13,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2021-12-14 18:20:13,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:13,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2021-12-14 18:20:13,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:13,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:13,797 INFO L134 CoverageAnalysis]: Checked inductivity of 974 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 972 trivial. 0 not checked. [2021-12-14 18:20:13,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:20:13,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781653914] [2021-12-14 18:20:13,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781653914] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:20:13,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:20:13,798 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-12-14 18:20:13,798 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890619684] [2021-12-14 18:20:13,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:20:13,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-14 18:20:13,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:20:13,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-14 18:20:13,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2021-12-14 18:20:13,800 INFO L87 Difference]: Start difference. First operand 10474 states and 15098 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) [2021-12-14 18:20:23,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:20:23,278 INFO L93 Difference]: Finished difference Result 27134 states and 41476 transitions. [2021-12-14 18:20:23,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-12-14 18:20:23,278 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 [2021-12-14 18:20:23,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:20:23,427 INFO L225 Difference]: With dead ends: 27134 [2021-12-14 18:20:23,430 INFO L226 Difference]: Without dead ends: 16702 [2021-12-14 18:20:23,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2021-12-14 18:20:23,507 INFO L933 BasicCegarLoop]: 2715 mSDtfsCounter, 5304 mSDsluCounter, 14837 mSDsCounter, 0 mSdLazyCounter, 10317 mSolverCounterSat, 4220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5553 SdHoareTripleChecker+Valid, 17552 SdHoareTripleChecker+Invalid, 14537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4220 IncrementalHoareTripleChecker+Valid, 10317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-12-14 18:20:23,507 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5553 Valid, 17552 Invalid, 14537 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4220 Valid, 10317 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2021-12-14 18:20:23,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16702 states. [2021-12-14 18:20:24,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16702 to 11120. [2021-12-14 18:20:24,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11120 states, 7854 states have (on average 1.3703845174433409) internal successors, (10763), 8256 states have internal predecessors, (10763), 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) [2021-12-14 18:20:24,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11120 states to 11120 states and 16189 transitions. [2021-12-14 18:20:24,194 INFO L78 Accepts]: Start accepts. Automaton has 11120 states and 16189 transitions. Word has length 386 [2021-12-14 18:20:24,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:20:24,195 INFO L470 AbstractCegarLoop]: Abstraction has 11120 states and 16189 transitions. [2021-12-14 18:20:24,196 INFO L471 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) [2021-12-14 18:20:24,196 INFO L276 IsEmpty]: Start isEmpty. Operand 11120 states and 16189 transitions. [2021-12-14 18:20:24,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2021-12-14 18:20:24,278 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:20:24,278 INFO L514 BasicCegarLoop]: 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] [2021-12-14 18:20:24,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 18:20:24,278 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:20:24,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:20:24,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1508137066, now seen corresponding path program 1 times [2021-12-14 18:20:24,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:20:24,279 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37881728] [2021-12-14 18:20:24,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:20:24,279 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:20:24,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:20:24,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:24,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:24,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:20:24,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:24,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:24,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:20:24,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:24,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:24,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:20:24,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:24,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:24,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:20:24,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:24,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:20:24,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:24,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:24,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 18:20:24,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:24,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:20:24,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:24,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 18:20:24,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:24,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-14 18:20:24,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:24,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-14 18:20:24,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:24,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-14 18:20:24,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:24,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-14 18:20:24,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-14 18:20:24,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:24,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-14 18:20:24,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:24,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-14 18:20:24,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:24,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:24,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-14 18:20:24,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:24,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-14 18:20:24,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2021-12-14 18:20:24,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:24,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:24,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-12-14 18:20:24,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:24,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:24,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:20:24,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-14 18:20:24,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:24,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 18:20:24,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-12-14 18:20:24,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-12-14 18:20:24,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-12-14 18:20:24,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:24,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 18:20:24,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2021-12-14 18:20:24,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2021-12-14 18:20:24,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:24,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 381 [2021-12-14 18:20:24,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:24,852 INFO L134 CoverageAnalysis]: Checked inductivity of 1066 backedges. 2 proven. 42 refuted. 0 times theorem prover too weak. 1022 trivial. 0 not checked. [2021-12-14 18:20:24,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:20:24,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37881728] [2021-12-14 18:20:24,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37881728] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 18:20:24,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [506437328] [2021-12-14 18:20:24,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:20:24,853 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 18:20:24,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:20:24,854 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) [2021-12-14 18:20:24,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-14 18:20:25,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:25,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 3964 conjuncts, 19 conjunts are in the unsatisfiable core [2021-12-14 18:20:25,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 18:20:26,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1066 backedges. 223 proven. 0 refuted. 0 times theorem prover too weak. 843 trivial. 0 not checked. [2021-12-14 18:20:26,328 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 18:20:26,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [506437328] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:20:26,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 18:20:26,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11] total 14 [2021-12-14 18:20:26,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708271800] [2021-12-14 18:20:26,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:20:26,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:20:26,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:20:26,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:20:26,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2021-12-14 18:20:26,331 INFO L87 Difference]: Start difference. First operand 11120 states and 16189 transitions. Second operand has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-12-14 18:20:26,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:20:26,649 INFO L93 Difference]: Finished difference Result 22208 states and 32331 transitions. [2021-12-14 18:20:26,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:20:26,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 406 [2021-12-14 18:20:26,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:20:26,691 INFO L225 Difference]: With dead ends: 22208 [2021-12-14 18:20:26,691 INFO L226 Difference]: Without dead ends: 11110 [2021-12-14 18:20:26,720 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 541 GetRequests, 527 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2021-12-14 18:20:26,721 INFO L933 BasicCegarLoop]: 3000 mSDtfsCounter, 3 mSDsluCounter, 8987 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 11987 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 [2021-12-14 18:20:26,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 11987 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 18:20:26,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11110 states. [2021-12-14 18:20:27,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11110 to 11106. [2021-12-14 18:20:27,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11106 states, 7844 states have (on average 1.3700917899031106) internal successors, (10747), 8242 states have internal predecessors, (10747), 2457 states have call successors, (2457), 711 states have call predecessors, (2457), 804 states have return successors, (2965), 2363 states have call predecessors, (2965), 2456 states have call successors, (2965) [2021-12-14 18:20:27,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11106 states to 11106 states and 16169 transitions. [2021-12-14 18:20:27,103 INFO L78 Accepts]: Start accepts. Automaton has 11106 states and 16169 transitions. Word has length 406 [2021-12-14 18:20:27,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:20:27,105 INFO L470 AbstractCegarLoop]: Abstraction has 11106 states and 16169 transitions. [2021-12-14 18:20:27,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.4) internal successors, (137), 5 states have internal predecessors, (137), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2021-12-14 18:20:27,105 INFO L276 IsEmpty]: Start isEmpty. Operand 11106 states and 16169 transitions. [2021-12-14 18:20:27,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2021-12-14 18:20:27,113 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:20:27,113 INFO L514 BasicCegarLoop]: 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, 1] [2021-12-14 18:20:27,149 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-14 18:20:27,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 18:20:27,328 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:20:27,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:20:27,328 INFO L85 PathProgramCache]: Analyzing trace with hash 978489571, now seen corresponding path program 1 times [2021-12-14 18:20:27,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:20:27,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109253073] [2021-12-14 18:20:27,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:20:27,328 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:20:27,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:20:27,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:27,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:27,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 18:20:27,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:27,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:27,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-12-14 18:20:27,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:27,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:27,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2021-12-14 18:20:27,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:27,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:27,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 18:20:27,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:27,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:27,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-12-14 18:20:27,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:27,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:27,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2021-12-14 18:20:27,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:27,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:27,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 18:20:27,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:27,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:27,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 18:20:27,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:27,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-14 18:20:27,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:27,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-12-14 18:20:27,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-14 18:20:27,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:27,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-14 18:20:27,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-14 18:20:27,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:27,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-14 18:20:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-14 18:20:27,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:27,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-14 18:20:27,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:27,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:27,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-14 18:20:27,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-14 18:20:27,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:27,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-14 18:20:27,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:27,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2021-12-14 18:20:27,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:27,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:20:27,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 18:20:27,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-14 18:20:27,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:27,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 18:20:27,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2021-12-14 18:20:27,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 345 [2021-12-14 18:20:27,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2021-12-14 18:20:27,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:27,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-14 18:20:27,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-12-14 18:20:27,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2021-12-14 18:20:27,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:27,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2021-12-14 18:20:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:20:27,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:20:27,933 INFO L134 CoverageAnalysis]: Checked inductivity of 1078 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1073 trivial. 0 not checked. [2021-12-14 18:20:27,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:20:27,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109253073] [2021-12-14 18:20:27,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109253073] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:20:27,933 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:20:27,933 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 18:20:27,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54195722] [2021-12-14 18:20:27,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:20:27,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 18:20:27,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:20:27,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 18:20:27,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-14 18:20:27,947 INFO L87 Difference]: Start difference. First operand 11106 states and 16169 transitions. Second operand has 8 states, 8 states have (on average 16.5) internal successors, (132), 3 states have internal predecessors, (132), 3 states have call successors, (47), 7 states have call predecessors, (47), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39)