./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--wan--lmc--lmc.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 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--wan--lmc--lmc.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 66b2f104726c03e3846e38f6b09c6a45d6c8d058156e96895db9342600740310 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 05:35:39,053 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 05:35:39,055 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 05:35:39,115 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 05:35:39,116 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 05:35:39,119 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 05:35:39,120 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 05:35:39,122 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 05:35:39,124 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 05:35:39,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 05:35:39,128 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 05:35:39,129 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 05:35:39,129 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 05:35:39,131 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 05:35:39,132 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 05:35:39,135 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 05:35:39,136 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 05:35:39,137 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 05:35:39,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 05:35:39,143 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 05:35:39,145 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 05:35:39,146 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 05:35:39,147 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 05:35:39,148 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 05:35:39,152 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 05:35:39,153 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 05:35:39,153 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 05:35:39,154 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 05:35:39,155 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 05:35:39,155 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 05:35:39,156 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 05:35:39,156 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 05:35:39,157 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 05:35:39,158 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 05:35:39,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 05:35:39,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 05:35:39,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 05:35:39,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 05:35:39,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 05:35:39,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 05:35:39,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 05:35:39,162 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 05:35:39,187 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 05:35:39,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 05:35:39,188 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 05:35:39,188 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 05:35:39,189 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 05:35:39,189 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 05:35:39,189 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 05:35:39,190 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 05:35:39,190 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 05:35:39,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 05:35:39,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 05:35:39,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 05:35:39,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 05:35:39,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 05:35:39,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 05:35:39,191 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 05:35:39,192 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 05:35:39,192 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 05:35:39,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 05:35:39,192 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 05:35:39,192 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 05:35:39,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 05:35:39,192 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 05:35:39,193 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 05:35:39,193 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 05:35:39,193 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 05:35:39,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 05:35:39,193 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 05:35:39,193 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 05:35:39,194 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 05:35:39,194 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 05:35:39,194 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66b2f104726c03e3846e38f6b09c6a45d6c8d058156e96895db9342600740310 [2021-11-17 05:35:39,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 05:35:39,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 05:35:39,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 05:35:39,412 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 05:35:39,412 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 05:35:39,413 INFO L432 ainManager$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--wan--lmc--lmc.ko-entry_point.cil.out.i [2021-11-17 05:35:39,467 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8e38fa5a/980c64bbbcf54b0b8c3f0d238015f027/FLAG7ff9a40b9 [2021-11-17 05:35:40,106 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 05:35:40,107 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--wan--lmc--lmc.ko-entry_point.cil.out.i [2021-11-17 05:35:40,149 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8e38fa5a/980c64bbbcf54b0b8c3f0d238015f027/FLAG7ff9a40b9 [2021-11-17 05:35:40,500 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a8e38fa5a/980c64bbbcf54b0b8c3f0d238015f027 [2021-11-17 05:35:40,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 05:35:40,503 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 05:35:40,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 05:35:40,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 05:35:40,509 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 05:35:40,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 05:35:40" (1/1) ... [2021-11-17 05:35:40,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66e9e0d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:35:40, skipping insertion in model container [2021-11-17 05:35:40,510 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 05:35:40" (1/1) ... [2021-11-17 05:35:40,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 05:35:40,598 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 05:35:41,837 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--wan--lmc--lmc.ko-entry_point.cil.out.i[287455,287468] [2021-11-17 05:35:41,870 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 05:35:41,893 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 05:35:42,246 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--wan--lmc--lmc.ko-entry_point.cil.out.i[287455,287468] [2021-11-17 05:35:42,252 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 05:35:42,324 INFO L208 MainTranslator]: Completed translation [2021-11-17 05:35:42,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:35:42 WrapperNode [2021-11-17 05:35:42,326 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 05:35:42,327 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 05:35:42,327 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 05:35:42,327 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 05:35:42,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:35:42" (1/1) ... [2021-11-17 05:35:42,409 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:35:42" (1/1) ... [2021-11-17 05:35:42,522 INFO L137 Inliner]: procedures = 274, calls = 2121, calls flagged for inlining = 123, calls inlined = 120, statements flattened = 4335 [2021-11-17 05:35:42,522 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 05:35:42,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 05:35:42,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 05:35:42,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 05:35:42,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:35:42" (1/1) ... [2021-11-17 05:35:42,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:35:42" (1/1) ... [2021-11-17 05:35:42,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:35:42" (1/1) ... [2021-11-17 05:35:42,564 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:35:42" (1/1) ... [2021-11-17 05:35:42,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:35:42" (1/1) ... [2021-11-17 05:35:42,671 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:35:42" (1/1) ... [2021-11-17 05:35:42,692 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:35:42" (1/1) ... [2021-11-17 05:35:42,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 05:35:42,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 05:35:42,765 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 05:35:42,765 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 05:35:42,766 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:35:42" (1/1) ... [2021-11-17 05:35:42,772 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 05:35:42,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 05:35:42,796 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) [2021-11-17 05:35:42,819 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 [2021-11-17 05:35:42,842 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2021-11-17 05:35:42,843 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2021-11-17 05:35:42,843 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_open [2021-11-17 05:35:42,843 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_open [2021-11-17 05:35:42,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 05:35:42,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 05:35:42,843 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-17 05:35:42,843 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-17 05:35:42,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 05:35:42,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 05:35:42,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 05:35:42,844 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 05:35:42,844 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dec_reset [2021-11-17 05:35:42,844 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dec_reset [2021-11-17 05:35:42,844 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_get_link_status [2021-11-17 05:35:42,844 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_get_link_status [2021-11-17 05:35:42,845 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-17 05:35:42,845 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-17 05:35:42,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-11-17 05:35:42,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-11-17 05:35:42,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 05:35:42,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 05:35:42,845 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_circuit_type [2021-11-17 05:35:42,845 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_circuit_type [2021-11-17 05:35:42,846 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkinput [2021-11-17 05:35:42,846 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkinput [2021-11-17 05:35:42,846 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-17 05:35:42,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-17 05:35:42,846 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 05:35:42,846 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 05:35:42,846 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-17 05:35:42,846 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-17 05:35:42,847 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_100ft [2021-11-17 05:35:42,847 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_100ft [2021-11-17 05:35:42,847 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-17 05:35:42,847 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-17 05:35:42,847 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-17 05:35:42,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2021-11-17 05:35:42,848 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_scram [2021-11-17 05:35:42,848 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_scram [2021-11-17 05:35:42,848 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_change_mtu [2021-11-17 05:35:42,848 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_change_mtu [2021-11-17 05:35:42,848 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_close [2021-11-17 05:35:42,848 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_close [2021-11-17 05:35:42,849 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkoutput [2021-11-17 05:35:42,849 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkoutput [2021-11-17 05:35:42,849 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2021-11-17 05:35:42,849 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2021-11-17 05:35:42,849 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-17 05:35:42,849 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-17 05:35:42,850 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_get_stats [2021-11-17 05:35:42,850 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_get_stats [2021-11-17 05:35:42,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 05:35:42,850 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_sc [2021-11-17 05:35:42,850 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_sc [2021-11-17 05:35:42,851 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2021-11-17 05:35:42,851 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2021-11-17 05:35:42,852 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_netif [2021-11-17 05:35:42,852 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_netif [2021-11-17 05:35:42,852 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 05:35:42,853 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2021-11-17 05:35:42,853 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2021-11-17 05:35:42,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-11-17 05:35:42,853 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-11-17 05:35:42,854 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-11-17 05:35:42,854 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-11-17 05:35:42,854 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_trace [2021-11-17 05:35:42,854 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_trace [2021-11-17 05:35:42,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 05:35:42,854 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110 [2021-11-17 05:35:42,854 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110 [2021-11-17 05:35:42,855 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 05:35:42,855 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-11-17 05:35:42,855 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-11-17 05:35:42,856 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2021-11-17 05:35:42,856 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2021-11-17 05:35:42,856 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-11-17 05:35:42,856 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-11-17 05:35:42,856 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_type [2021-11-17 05:35:42,856 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_type [2021-11-17 05:35:42,856 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 05:35:42,857 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 05:35:42,857 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_remove_one [2021-11-17 05:35:42,857 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_remove_one [2021-11-17 05:35:42,857 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-11-17 05:35:42,857 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-11-17 05:35:42,858 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_write [2021-11-17 05:35:42,858 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_write [2021-11-17 05:35:42,858 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_close [2021-11-17 05:35:42,858 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_close [2021-11-17 05:35:42,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 05:35:42,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 05:35:42,859 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_off [2021-11-17 05:35:42,859 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_off [2021-11-17 05:35:42,860 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 05:35:42,860 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-17 05:35:42,860 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-17 05:35:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2021-11-17 05:35:42,861 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2021-11-17 05:35:42,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-17 05:35:42,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-17 05:35:42,862 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 05:35:42,862 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 05:35:42,862 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_softreset [2021-11-17 05:35:42,862 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_softreset [2021-11-17 05:35:42,862 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110_bit [2021-11-17 05:35:42,862 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110_bit [2021-11-17 05:35:42,863 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 05:35:42,863 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-17 05:35:42,863 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-17 05:35:42,863 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-11-17 05:35:42,863 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-11-17 05:35:42,864 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2021-11-17 05:35:42,864 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2021-11-17 05:35:42,864 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 05:35:42,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 05:35:42,864 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_writereg [2021-11-17 05:35:42,865 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_writereg [2021-11-17 05:35:42,865 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ioctl [2021-11-17 05:35:42,865 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ioctl [2021-11-17 05:35:42,865 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2021-11-17 05:35:42,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2021-11-17 05:35:42,866 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_attach [2021-11-17 05:35:42,866 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_attach [2021-11-17 05:35:42,866 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2021-11-17 05:35:42,866 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2021-11-17 05:35:42,866 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2021-11-17 05:35:42,866 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2021-11-17 05:35:42,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 05:35:42,871 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2021-11-17 05:35:42,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2021-11-17 05:35:42,871 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-17 05:35:42,871 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-17 05:35:42,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 05:35:42,872 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 05:35:42,872 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 05:35:42,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 05:35:42,872 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_readreg [2021-11-17 05:35:42,872 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_readreg [2021-11-17 05:35:42,872 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-11-17 05:35:42,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-11-17 05:35:42,873 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2021-11-17 05:35:42,873 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2021-11-17 05:35:42,873 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 05:35:42,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 05:35:42,874 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-17 05:35:42,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-17 05:35:42,874 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_open [2021-11-17 05:35:42,874 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_open [2021-11-17 05:35:42,874 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-11-17 05:35:42,874 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-11-17 05:35:42,874 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_on [2021-11-17 05:35:42,874 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_on [2021-11-17 05:35:42,875 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-11-17 05:35:42,875 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-11-17 05:35:42,875 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 05:35:42,875 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_set_protocol [2021-11-17 05:35:42,875 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_set_protocol [2021-11-17 05:35:42,875 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-17 05:35:42,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2021-11-17 05:35:42,876 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2021-11-17 05:35:42,876 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2021-11-17 05:35:42,876 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2021-11-17 05:35:42,876 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2021-11-17 05:35:42,876 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 05:35:42,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 05:35:42,876 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2021-11-17 05:35:42,877 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2021-11-17 05:35:43,439 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 05:35:43,442 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 05:35:44,211 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 05:35:49,236 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 05:35:49,261 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 05:35:49,261 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-17 05:35:49,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 05:35:49 BoogieIcfgContainer [2021-11-17 05:35:49,264 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 05:35:49,265 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 05:35:49,265 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 05:35:49,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 05:35:49,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 05:35:40" (1/3) ... [2021-11-17 05:35:49,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b0a5ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 05:35:49, skipping insertion in model container [2021-11-17 05:35:49,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 05:35:42" (2/3) ... [2021-11-17 05:35:49,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41b0a5ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 05:35:49, skipping insertion in model container [2021-11-17 05:35:49,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 05:35:49" (3/3) ... [2021-11-17 05:35:49,270 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i [2021-11-17 05:35:49,274 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 05:35:49,274 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 05:35:49,308 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 05:35:49,313 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 [2021-11-17 05:35:49,313 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 05:35:49,388 INFO L276 IsEmpty]: Start isEmpty. Operand has 1794 states, 1154 states have (on average 1.3223570190641247) internal successors, (1526), 1202 states have internal predecessors, (1526), 563 states have call successors, (563), 76 states have call predecessors, (563), 75 states have return successors, (557), 542 states have call predecessors, (557), 557 states have call successors, (557) [2021-11-17 05:35:49,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-17 05:35:49,396 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:35:49,396 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-17 05:35:49,397 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:35:49,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:35:49,401 INFO L85 PathProgramCache]: Analyzing trace with hash 2114030879, now seen corresponding path program 1 times [2021-11-17 05:35:49,406 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:35:49,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434004543] [2021-11-17 05:35:49,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:35:49,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:35:49,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:35:49,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:35:49,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:35:49,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:35:49,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:35:49,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:35:49,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:35:49,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:35:49,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:35:49,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:35:49,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:35:49,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:35:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:35:49,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:35:49,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:35:49,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:35:49,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:35:49,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:35:49,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:35:49,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 05:35:49,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:35:49,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:35:49,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:35:49,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 05:35:49,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:35:49,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:35:49,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:35:49,813 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-17 05:35:49,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:35:49,814 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434004543] [2021-11-17 05:35:49,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [434004543] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:35:49,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:35:49,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 05:35:49,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574936445] [2021-11-17 05:35:49,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:35:49,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 05:35:49,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:35:49,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 05:35:49,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 05:35:49,839 INFO L87 Difference]: Start difference. First operand has 1794 states, 1154 states have (on average 1.3223570190641247) internal successors, (1526), 1202 states have internal predecessors, (1526), 563 states have call successors, (563), 76 states have call predecessors, (563), 75 states have return successors, (557), 542 states have call predecessors, (557), 557 states have call successors, (557) Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-17 05:35:53,900 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:35:58,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:35:58,798 INFO L93 Difference]: Finished difference Result 3793 states and 5763 transitions. [2021-11-17 05:35:58,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 05:35:58,810 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 92 [2021-11-17 05:35:58,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:35:58,849 INFO L225 Difference]: With dead ends: 3793 [2021-11-17 05:35:58,849 INFO L226 Difference]: Without dead ends: 1987 [2021-11-17 05:35:58,870 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2021-11-17 05:35:58,874 INFO L933 BasicCegarLoop]: 2363 mSDtfsCounter, 1193 mSDsluCounter, 2263 mSDsCounter, 0 mSdLazyCounter, 2868 mSolverCounterSat, 1518 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1235 SdHoareTripleChecker+Valid, 4626 SdHoareTripleChecker+Invalid, 4387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1518 IncrementalHoareTripleChecker+Valid, 2868 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2021-11-17 05:35:58,875 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1235 Valid, 4626 Invalid, 4387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1518 Valid, 2868 Invalid, 1 Unknown, 0 Unchecked, 8.6s Time] [2021-11-17 05:35:58,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1987 states. [2021-11-17 05:35:59,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1987 to 1777. [2021-11-17 05:35:59,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1777 states, 1145 states have (on average 1.3161572052401747) internal successors, (1507), 1185 states have internal predecessors, (1507), 557 states have call successors, (557), 75 states have call predecessors, (557), 74 states have return successors, (556), 541 states have call predecessors, (556), 556 states have call successors, (556) [2021-11-17 05:35:59,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1777 states to 1777 states and 2620 transitions. [2021-11-17 05:35:59,034 INFO L78 Accepts]: Start accepts. Automaton has 1777 states and 2620 transitions. Word has length 92 [2021-11-17 05:35:59,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:35:59,035 INFO L470 AbstractCegarLoop]: Abstraction has 1777 states and 2620 transitions. [2021-11-17 05:35:59,035 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 2 states have internal predecessors, (39), 2 states have call successors, (11), 5 states have call predecessors, (11), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2021-11-17 05:35:59,036 INFO L276 IsEmpty]: Start isEmpty. Operand 1777 states and 2620 transitions. [2021-11-17 05:35:59,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-11-17 05:35:59,044 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:35:59,045 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-17 05:35:59,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 05:35:59,045 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:35:59,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:35:59,048 INFO L85 PathProgramCache]: Analyzing trace with hash -645505755, now seen corresponding path program 1 times [2021-11-17 05:35:59,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:35:59,048 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854262380] [2021-11-17 05:35:59,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:35:59,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:35:59,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:35:59,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:35:59,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:35:59,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:35:59,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:35:59,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:35:59,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:35:59,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:35:59,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:35:59,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:35:59,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:35:59,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:35:59,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:35:59,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:35:59,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:35:59,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:35:59,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:35:59,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:35:59,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:35:59,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 05:35:59,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:35:59,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:35:59,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:35:59,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 05:35:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:35:59,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:35:59,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:35:59,287 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-11-17 05:35:59,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:35:59,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854262380] [2021-11-17 05:35:59,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854262380] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:35:59,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:35:59,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 05:35:59,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185031613] [2021-11-17 05:35:59,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:35:59,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 05:35:59,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:35:59,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 05:35:59,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 05:35:59,290 INFO L87 Difference]: Start difference. First operand 1777 states and 2620 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-11-17 05:36:04,644 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:36:06,667 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:36:13,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:36:13,406 INFO L93 Difference]: Finished difference Result 5629 states and 8535 transitions. [2021-11-17 05:36:13,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 05:36:13,407 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 92 [2021-11-17 05:36:13,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:36:13,436 INFO L225 Difference]: With dead ends: 5629 [2021-11-17 05:36:13,437 INFO L226 Difference]: Without dead ends: 3870 [2021-11-17 05:36:13,453 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 05:36:13,455 INFO L933 BasicCegarLoop]: 3066 mSDtfsCounter, 4265 mSDsluCounter, 4036 mSDsCounter, 0 mSdLazyCounter, 3853 mSolverCounterSat, 3207 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4590 SdHoareTripleChecker+Valid, 7102 SdHoareTripleChecker+Invalid, 7062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3207 IncrementalHoareTripleChecker+Valid, 3853 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2021-11-17 05:36:13,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4590 Valid, 7102 Invalid, 7062 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3207 Valid, 3853 Invalid, 2 Unknown, 0 Unchecked, 13.7s Time] [2021-11-17 05:36:13,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3870 states. [2021-11-17 05:36:13,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3870 to 3449. [2021-11-17 05:36:13,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3449 states, 2214 states have (on average 1.3175248419150858) internal successors, (2917), 2292 states have internal predecessors, (2917), 1087 states have call successors, (1087), 148 states have call predecessors, (1087), 147 states have return successors, (1086), 1056 states have call predecessors, (1086), 1086 states have call successors, (1086) [2021-11-17 05:36:13,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3449 states to 3449 states and 5090 transitions. [2021-11-17 05:36:13,673 INFO L78 Accepts]: Start accepts. Automaton has 3449 states and 5090 transitions. Word has length 92 [2021-11-17 05:36:13,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:36:13,675 INFO L470 AbstractCegarLoop]: Abstraction has 3449 states and 5090 transitions. [2021-11-17 05:36:13,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2021-11-17 05:36:13,676 INFO L276 IsEmpty]: Start isEmpty. Operand 3449 states and 5090 transitions. [2021-11-17 05:36:13,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2021-11-17 05:36:13,683 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:36:13,683 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-11-17 05:36:13,684 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 05:36:13,684 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:36:13,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:36:13,685 INFO L85 PathProgramCache]: Analyzing trace with hash -600008244, now seen corresponding path program 1 times [2021-11-17 05:36:13,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:36:13,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030939335] [2021-11-17 05:36:13,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:36:13,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:36:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:13,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:36:13,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:13,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:36:13,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:13,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:36:13,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:13,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:36:13,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:13,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:36:13,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:13,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:36:13,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:13,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:36:13,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:13,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:36:13,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:13,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:36:13,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:14,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 05:36:14,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:14,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:36:14,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:14,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 05:36:14,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:14,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:36:14,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:14,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2021-11-17 05:36:14,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:14,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:36:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:14,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:36:14,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:14,071 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2021-11-17 05:36:14,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:36:14,072 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030939335] [2021-11-17 05:36:14,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030939335] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:36:14,072 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:36:14,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 05:36:14,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042672332] [2021-11-17 05:36:14,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:36:14,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 05:36:14,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:36:14,075 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 05:36:14,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 05:36:14,075 INFO L87 Difference]: Start difference. First operand 3449 states and 5090 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-17 05:36:20,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:36:20,824 INFO L93 Difference]: Finished difference Result 6414 states and 9853 transitions. [2021-11-17 05:36:20,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 05:36:20,824 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 122 [2021-11-17 05:36:20,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:36:20,878 INFO L225 Difference]: With dead ends: 6414 [2021-11-17 05:36:20,878 INFO L226 Difference]: Without dead ends: 6411 [2021-11-17 05:36:20,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-11-17 05:36:20,890 INFO L933 BasicCegarLoop]: 3467 mSDtfsCounter, 4112 mSDsluCounter, 2791 mSDsCounter, 0 mSdLazyCounter, 2586 mSolverCounterSat, 3483 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4350 SdHoareTripleChecker+Valid, 6258 SdHoareTripleChecker+Invalid, 6069 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3483 IncrementalHoareTripleChecker+Valid, 2586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-17 05:36:20,892 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4350 Valid, 6258 Invalid, 6069 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3483 Valid, 2586 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2021-11-17 05:36:20,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6411 states. [2021-11-17 05:36:21,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6411 to 5756. [2021-11-17 05:36:21,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5756 states, 3679 states have (on average 1.3101386246262572) internal successors, (4820), 3821 states have internal predecessors, (4820), 1815 states have call successors, (1815), 258 states have call predecessors, (1815), 261 states have return successors, (1901), 1758 states have call predecessors, (1901), 1814 states have call successors, (1901) [2021-11-17 05:36:21,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5756 states to 5756 states and 8536 transitions. [2021-11-17 05:36:21,206 INFO L78 Accepts]: Start accepts. Automaton has 5756 states and 8536 transitions. Word has length 122 [2021-11-17 05:36:21,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:36:21,208 INFO L470 AbstractCegarLoop]: Abstraction has 5756 states and 8536 transitions. [2021-11-17 05:36:21,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2021-11-17 05:36:21,208 INFO L276 IsEmpty]: Start isEmpty. Operand 5756 states and 8536 transitions. [2021-11-17 05:36:21,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-11-17 05:36:21,223 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:36:21,224 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:36:21,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 05:36:21,224 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:36:21,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:36:21,227 INFO L85 PathProgramCache]: Analyzing trace with hash -377035489, now seen corresponding path program 1 times [2021-11-17 05:36:21,227 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:36:21,227 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380420805] [2021-11-17 05:36:21,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:36:21,227 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:36:21,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:21,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:36:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:21,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:36:21,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:21,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:36:21,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:21,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:36:21,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:21,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:36:21,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:21,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:36:21,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:21,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:36:21,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:21,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:36:21,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:21,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:36:21,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:21,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 05:36:21,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:21,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:36:21,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:21,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 05:36:21,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:21,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:36:21,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:21,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-17 05:36:21,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:21,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:36:21,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:21,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-11-17 05:36:21,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:21,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-11-17 05:36:21,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:21,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-17 05:36:21,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:21,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-11-17 05:36:21,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:21,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 05:36:21,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:21,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 05:36:21,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:21,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:36:21,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:21,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-11-17 05:36:21,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:21,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-11-17 05:36:21,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:21,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:36:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:21,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 05:36:21,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:21,619 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-11-17 05:36:21,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:36:21,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380420805] [2021-11-17 05:36:21,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380420805] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:36:21,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:36:21,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 05:36:21,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575840813] [2021-11-17 05:36:21,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:36:21,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 05:36:21,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:36:21,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 05:36:21,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-17 05:36:21,622 INFO L87 Difference]: Start difference. First operand 5756 states and 8536 transitions. Second operand has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-17 05:36:26,480 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.99s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:36:36,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:36:36,621 INFO L93 Difference]: Finished difference Result 18798 states and 28686 transitions. [2021-11-17 05:36:36,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-17 05:36:36,631 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 178 [2021-11-17 05:36:36,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:36:36,740 INFO L225 Difference]: With dead ends: 18798 [2021-11-17 05:36:36,740 INFO L226 Difference]: Without dead ends: 13074 [2021-11-17 05:36:36,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-11-17 05:36:36,782 INFO L933 BasicCegarLoop]: 2315 mSDtfsCounter, 6172 mSDsluCounter, 7129 mSDsCounter, 0 mSdLazyCounter, 9485 mSolverCounterSat, 6083 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6622 SdHoareTripleChecker+Valid, 9444 SdHoareTripleChecker+Invalid, 15568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6083 IncrementalHoareTripleChecker+Valid, 9485 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2021-11-17 05:36:36,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6622 Valid, 9444 Invalid, 15568 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6083 Valid, 9485 Invalid, 0 Unknown, 0 Unchecked, 14.2s Time] [2021-11-17 05:36:36,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13074 states. [2021-11-17 05:36:37,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13074 to 11991. [2021-11-17 05:36:37,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11991 states, 7661 states have (on average 1.3042683722751598) internal successors, (9992), 7945 states have internal predecessors, (9992), 3777 states have call successors, (3777), 513 states have call predecessors, (3777), 552 states have return successors, (4166), 3700 states have call predecessors, (4166), 3776 states have call successors, (4166) [2021-11-17 05:36:37,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11991 states to 11991 states and 17935 transitions. [2021-11-17 05:36:37,410 INFO L78 Accepts]: Start accepts. Automaton has 11991 states and 17935 transitions. Word has length 178 [2021-11-17 05:36:37,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:36:37,410 INFO L470 AbstractCegarLoop]: Abstraction has 11991 states and 17935 transitions. [2021-11-17 05:36:37,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.333333333333334) internal successors, (84), 4 states have internal predecessors, (84), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-17 05:36:37,411 INFO L276 IsEmpty]: Start isEmpty. Operand 11991 states and 17935 transitions. [2021-11-17 05:36:37,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2021-11-17 05:36:37,422 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:36:37,423 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:36:37,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 05:36:37,423 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:36:37,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:36:37,424 INFO L85 PathProgramCache]: Analyzing trace with hash -272632065, now seen corresponding path program 1 times [2021-11-17 05:36:37,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:36:37,424 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963549711] [2021-11-17 05:36:37,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:36:37,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:36:37,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:37,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:36:37,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:37,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:36:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:37,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:36:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:37,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:36:37,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:37,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:36:37,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:37,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:36:37,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:37,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:36:37,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:37,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:36:37,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:37,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:36:37,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:37,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 05:36:37,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:37,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:36:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:37,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 05:36:37,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:37,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:36:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:37,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2021-11-17 05:36:37,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:37,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:36:37,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:37,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-17 05:36:37,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:37,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-11-17 05:36:37,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:37,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-11-17 05:36:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:37,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-17 05:36:37,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:37,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-17 05:36:37,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:37,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 05:36:37,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:37,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:36:37,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:37,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 05:36:37,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:37,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-11-17 05:36:37,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:37,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:36:37,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:37,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 05:36:37,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:37,745 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-11-17 05:36:37,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:36:37,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963549711] [2021-11-17 05:36:37,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963549711] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:36:37,745 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:36:37,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 05:36:37,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580983733] [2021-11-17 05:36:37,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:36:37,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 05:36:37,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:36:37,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 05:36:37,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-17 05:36:37,747 INFO L87 Difference]: Start difference. First operand 11991 states and 17935 transitions. Second operand has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-17 05:36:42,034 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:36:44,059 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:36:46,083 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:36:57,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:36:57,046 INFO L93 Difference]: Finished difference Result 38077 states and 58255 transitions. [2021-11-17 05:36:57,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-17 05:36:57,046 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 179 [2021-11-17 05:36:57,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:36:57,257 INFO L225 Difference]: With dead ends: 38077 [2021-11-17 05:36:57,258 INFO L226 Difference]: Without dead ends: 26118 [2021-11-17 05:36:57,332 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-11-17 05:36:57,334 INFO L933 BasicCegarLoop]: 2281 mSDtfsCounter, 6213 mSDsluCounter, 7601 mSDsCounter, 0 mSdLazyCounter, 10867 mSolverCounterSat, 6139 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6669 SdHoareTripleChecker+Valid, 9882 SdHoareTripleChecker+Invalid, 17008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6139 IncrementalHoareTripleChecker+Valid, 10867 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2021-11-17 05:36:57,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6669 Valid, 9882 Invalid, 17008 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6139 Valid, 10867 Invalid, 2 Unknown, 0 Unchecked, 18.1s Time] [2021-11-17 05:36:57,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26118 states. [2021-11-17 05:36:58,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26118 to 23961. [2021-11-17 05:36:58,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23961 states, 15311 states have (on average 1.3031154072235647) internal successors, (19952), 15879 states have internal predecessors, (19952), 7545 states have call successors, (7545), 1025 states have call predecessors, (7545), 1104 states have return successors, (8390), 7392 states have call predecessors, (8390), 7544 states have call successors, (8390) [2021-11-17 05:36:58,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23961 states to 23961 states and 35887 transitions. [2021-11-17 05:36:58,467 INFO L78 Accepts]: Start accepts. Automaton has 23961 states and 35887 transitions. Word has length 179 [2021-11-17 05:36:58,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:36:58,468 INFO L470 AbstractCegarLoop]: Abstraction has 23961 states and 35887 transitions. [2021-11-17 05:36:58,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.444444444444445) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-17 05:36:58,468 INFO L276 IsEmpty]: Start isEmpty. Operand 23961 states and 35887 transitions. [2021-11-17 05:36:58,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2021-11-17 05:36:58,480 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:36:58,480 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:36:58,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 05:36:58,481 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:36:58,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:36:58,481 INFO L85 PathProgramCache]: Analyzing trace with hash 706437634, now seen corresponding path program 1 times [2021-11-17 05:36:58,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:36:58,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780312726] [2021-11-17 05:36:58,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:36:58,482 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:36:58,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:58,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:36:58,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:58,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:36:58,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:58,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:36:58,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:58,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:36:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:58,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:36:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:58,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:36:58,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:58,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:36:58,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:58,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:36:58,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:58,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:36:58,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:58,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 05:36:58,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:58,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:36:58,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:58,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 05:36:58,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:58,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:36:58,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:58,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-11-17 05:36:58,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:58,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:36:58,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:58,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2021-11-17 05:36:58,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:58,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-11-17 05:36:58,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:58,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 05:36:58,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:58,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-11-17 05:36:58,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:58,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-11-17 05:36:58,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:58,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-11-17 05:36:58,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:58,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:36:58,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:58,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-11-17 05:36:58,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:58,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-11-17 05:36:58,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:58,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:36:58,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:58,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 05:36:58,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:36:58,770 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-11-17 05:36:58,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:36:58,771 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780312726] [2021-11-17 05:36:58,771 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780312726] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:36:58,771 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:36:58,771 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 05:36:58,771 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490241706] [2021-11-17 05:36:58,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:36:58,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 05:36:58,772 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:36:58,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 05:36:58,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-17 05:36:58,773 INFO L87 Difference]: Start difference. First operand 23961 states and 35887 transitions. Second operand has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-17 05:37:00,534 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:37:04,584 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:37:13,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:37:13,058 INFO L93 Difference]: Finished difference Result 76095 states and 116597 transitions. [2021-11-17 05:37:13,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-17 05:37:13,059 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 177 [2021-11-17 05:37:13,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:37:13,446 INFO L225 Difference]: With dead ends: 76095 [2021-11-17 05:37:13,448 INFO L226 Difference]: Without dead ends: 52166 [2021-11-17 05:37:13,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-11-17 05:37:13,572 INFO L933 BasicCegarLoop]: 2449 mSDtfsCounter, 7461 mSDsluCounter, 6823 mSDsCounter, 0 mSdLazyCounter, 8095 mSolverCounterSat, 7512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7915 SdHoareTripleChecker+Valid, 9272 SdHoareTripleChecker+Invalid, 15607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7512 IncrementalHoareTripleChecker+Valid, 8095 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2021-11-17 05:37:13,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7915 Valid, 9272 Invalid, 15607 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7512 Valid, 8095 Invalid, 0 Unknown, 0 Unchecked, 12.5s Time] [2021-11-17 05:37:13,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52166 states. [2021-11-17 05:37:15,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52166 to 47781. [2021-11-17 05:37:15,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47781 states, 30503 states have (on average 1.3021669999672163) internal successors, (39720), 31663 states have internal predecessors, (39720), 15073 states have call successors, (15073), 2045 states have call predecessors, (15073), 2204 states have return successors, (16866), 14744 states have call predecessors, (16866), 15072 states have call successors, (16866) [2021-11-17 05:37:16,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47781 states to 47781 states and 71659 transitions. [2021-11-17 05:37:16,369 INFO L78 Accepts]: Start accepts. Automaton has 47781 states and 71659 transitions. Word has length 177 [2021-11-17 05:37:16,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:37:16,370 INFO L470 AbstractCegarLoop]: Abstraction has 47781 states and 71659 transitions. [2021-11-17 05:37:16,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.222222222222221) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-17 05:37:16,370 INFO L276 IsEmpty]: Start isEmpty. Operand 47781 states and 71659 transitions. [2021-11-17 05:37:16,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-17 05:37:16,390 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:37:16,391 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:37:16,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 05:37:16,391 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:37:16,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:37:16,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1998761348, now seen corresponding path program 1 times [2021-11-17 05:37:16,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:37:16,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660996956] [2021-11-17 05:37:16,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:37:16,392 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:37:16,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:16,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:37:16,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:16,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:37:16,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:16,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:37:16,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:16,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:37:16,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:16,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:37:16,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:16,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:37:16,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:16,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:37:16,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:16,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:37:16,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:16,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:37:16,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:16,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 05:37:16,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:16,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:37:16,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:16,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 05:37:16,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:16,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:37:16,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:16,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-11-17 05:37:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:16,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:37:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:16,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 05:37:16,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:16,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 05:37:16,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:16,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2021-11-17 05:37:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:16,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-11-17 05:37:16,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:16,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-11-17 05:37:16,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:16,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-11-17 05:37:16,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:16,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:37:16,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:16,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 05:37:16,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:16,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 05:37:16,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:16,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:37:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:16,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 05:37:16,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:16,658 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-11-17 05:37:16,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:37:16,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660996956] [2021-11-17 05:37:16,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660996956] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:37:16,659 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 05:37:16,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-17 05:37:16,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385863279] [2021-11-17 05:37:16,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:37:16,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-17 05:37:16,660 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:37:16,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-17 05:37:16,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2021-11-17 05:37:16,660 INFO L87 Difference]: Start difference. First operand 47781 states and 71659 transitions. Second operand has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-17 05:37:23,016 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 05:37:37,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:37:37,781 INFO L93 Difference]: Finished difference Result 151113 states and 231497 transitions. [2021-11-17 05:37:37,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-17 05:37:37,782 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 180 [2021-11-17 05:37:37,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:37:38,575 INFO L225 Difference]: With dead ends: 151113 [2021-11-17 05:37:38,576 INFO L226 Difference]: Without dead ends: 103364 [2021-11-17 05:37:38,978 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=282, Unknown=0, NotChecked=0, Total=420 [2021-11-17 05:37:38,979 INFO L933 BasicCegarLoop]: 2284 mSDtfsCounter, 6204 mSDsluCounter, 7580 mSDsCounter, 0 mSdLazyCounter, 10874 mSolverCounterSat, 6137 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6662 SdHoareTripleChecker+Valid, 9864 SdHoareTripleChecker+Invalid, 17012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6137 IncrementalHoareTripleChecker+Valid, 10874 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2021-11-17 05:37:38,979 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6662 Valid, 9864 Invalid, 17012 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6137 Valid, 10874 Invalid, 1 Unknown, 0 Unchecked, 16.8s Time] [2021-11-17 05:37:39,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103364 states. [2021-11-17 05:37:42,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103364 to 94859. [2021-11-17 05:37:42,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94859 states, 60509 states have (on average 1.3008973871655456) internal successors, (78716), 62805 states have internal predecessors, (78716), 29961 states have call successors, (29961), 4069 states have call predecessors, (29961), 4388 states have return successors, (33712), 29314 states have call predecessors, (33712), 29960 states have call successors, (33712) [2021-11-17 05:37:43,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94859 states to 94859 states and 142389 transitions. [2021-11-17 05:37:43,896 INFO L78 Accepts]: Start accepts. Automaton has 94859 states and 142389 transitions. Word has length 180 [2021-11-17 05:37:43,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:37:43,896 INFO L470 AbstractCegarLoop]: Abstraction has 94859 states and 142389 transitions. [2021-11-17 05:37:43,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 9.555555555555555) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (24), 7 states have call predecessors, (24), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-11-17 05:37:43,897 INFO L276 IsEmpty]: Start isEmpty. Operand 94859 states and 142389 transitions. [2021-11-17 05:37:43,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-11-17 05:37:43,924 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:37:43,925 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:37:43,925 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 05:37:43,925 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:37:43,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:37:43,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1107819808, now seen corresponding path program 1 times [2021-11-17 05:37:43,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:37:43,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553692133] [2021-11-17 05:37:43,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:37:43,926 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:37:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:44,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:37:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:44,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:37:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:44,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:37:44,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:44,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:37:44,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:44,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:37:44,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:44,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:37:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:44,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:37:44,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:44,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:37:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:44,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:37:44,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:44,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 05:37:44,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:44,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:37:44,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:44,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 05:37:44,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:44,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:37:44,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:44,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-17 05:37:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:44,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-11-17 05:37:44,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:44,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:37:44,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:44,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-11-17 05:37:44,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:44,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-11-17 05:37:44,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:44,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-11-17 05:37:44,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:44,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2021-11-17 05:37:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:44,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-11-17 05:37:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:44,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-11-17 05:37:44,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:44,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:37:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:44,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-11-17 05:37:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:44,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-11-17 05:37:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:44,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:37:44,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:44,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 05:37:44,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:44,269 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2021-11-17 05:37:44,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:37:44,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553692133] [2021-11-17 05:37:44,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553692133] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 05:37:44,270 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971032466] [2021-11-17 05:37:44,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:37:44,270 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 05:37:44,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 05:37:44,272 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) [2021-11-17 05:37:44,315 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-17 05:37:44,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:37:44,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 2272 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-17 05:37:44,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 05:37:45,286 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-11-17 05:37:45,286 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 05:37:45,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971032466] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:37:45,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 05:37:45,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [12] total 17 [2021-11-17 05:37:45,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363772454] [2021-11-17 05:37:45,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:37:45,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 05:37:45,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:37:45,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 05:37:45,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-11-17 05:37:45,288 INFO L87 Difference]: Start difference. First operand 94859 states and 142389 transitions. Second operand has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 05:37:50,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 05:37:50,974 INFO L93 Difference]: Finished difference Result 237149 states and 356253 transitions. [2021-11-17 05:37:50,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-17 05:37:50,976 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) Word has length 190 [2021-11-17 05:37:50,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 05:37:52,415 INFO L225 Difference]: With dead ends: 237149 [2021-11-17 05:37:52,415 INFO L226 Difference]: Without dead ends: 142322 [2021-11-17 05:37:53,147 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 237 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2021-11-17 05:37:53,148 INFO L933 BasicCegarLoop]: 3660 mSDtfsCounter, 2645 mSDsluCounter, 17239 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2649 SdHoareTripleChecker+Valid, 20899 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-17 05:37:53,148 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2649 Valid, 20899 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-17 05:37:53,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142322 states. [2021-11-17 05:37:58,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142322 to 142027. [2021-11-17 05:37:58,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142027 states, 90605 states have (on average 1.3014072071077756) internal successors, (117914), 94061 states have internal predecessors, (117914), 44841 states have call successors, (44841), 6085 states have call predecessors, (44841), 6580 states have return successors, (50800), 43868 states have call predecessors, (50800), 44840 states have call successors, (50800) [2021-11-17 05:38:00,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142027 states to 142027 states and 213555 transitions. [2021-11-17 05:38:00,237 INFO L78 Accepts]: Start accepts. Automaton has 142027 states and 213555 transitions. Word has length 190 [2021-11-17 05:38:00,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 05:38:00,238 INFO L470 AbstractCegarLoop]: Abstraction has 142027 states and 213555 transitions. [2021-11-17 05:38:00,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.428571428571429) internal successors, (94), 5 states have internal predecessors, (94), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 05:38:00,238 INFO L276 IsEmpty]: Start isEmpty. Operand 142027 states and 213555 transitions. [2021-11-17 05:38:00,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-11-17 05:38:00,265 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 05:38:00,266 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 05:38:00,287 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-17 05:38:00,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 05:38:00,487 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 05:38:00,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 05:38:00,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1156044162, now seen corresponding path program 1 times [2021-11-17 05:38:00,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 05:38:00,487 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314536424] [2021-11-17 05:38:00,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:38:00,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 05:38:00,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:38:00,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-17 05:38:00,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:38:00,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:38:00,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:38:00,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:38:00,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:38:00,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-17 05:38:00,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:38:00,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:38:00,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:38:00,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:38:00,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:38:00,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2021-11-17 05:38:00,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:38:00,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:38:00,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:38:00,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-11-17 05:38:00,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:38:00,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-17 05:38:00,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:38:00,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:38:00,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:38:00,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-11-17 05:38:00,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:38:00,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:38:00,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:38:00,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-11-17 05:38:00,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:38:00,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-11-17 05:38:00,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:38:00,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:38:00,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:38:00,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-11-17 05:38:00,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:38:00,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 05:38:00,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:38:00,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2021-11-17 05:38:00,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:38:00,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-11-17 05:38:00,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:38:00,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 05:38:00,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:38:00,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-17 05:38:00,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:38:00,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:38:00,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:38:00,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2021-11-17 05:38:00,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:38:00,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 05:38:00,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:38:00,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 05:38:00,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:38:00,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-17 05:38:00,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:38:00,786 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-11-17 05:38:00,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 05:38:00,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314536424] [2021-11-17 05:38:00,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314536424] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-17 05:38:00,787 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871948445] [2021-11-17 05:38:00,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 05:38:00,787 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-17 05:38:00,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 05:38:00,788 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-17 05:38:00,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-17 05:38:01,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 05:38:01,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 2274 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-17 05:38:01,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-17 05:38:01,681 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2021-11-17 05:38:01,682 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-17 05:38:01,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871948445] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 05:38:01,682 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-17 05:38:01,682 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [13] total 18 [2021-11-17 05:38:01,682 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889777124] [2021-11-17 05:38:01,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 05:38:01,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 05:38:01,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 05:38:01,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 05:38:01,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-11-17 05:38:01,684 INFO L87 Difference]: Start difference. First operand 142027 states and 213555 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (25), 3 states have call predecessors, (25), 3 states have return successors, (21), 3 states have call predecessors, (21), 2 states have call successors, (21)