./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f4b24e32 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.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 a900a56caf1252bf2b77371f0836914c913e44b231203ecd4eebd687a96fd0c2 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 00:23:31,061 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:23:31,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:23:31,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:23:31,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:23:31,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:23:31,113 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:23:31,120 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:23:31,121 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:23:31,121 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:23:31,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:23:31,123 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:23:31,124 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:23:31,127 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:23:31,128 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:23:31,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:23:31,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:23:31,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:23:31,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:23:31,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:23:31,139 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:23:31,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:23:31,140 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:23:31,140 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:23:31,141 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:23:31,143 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:23:31,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:23:31,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:23:31,148 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:23:31,148 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:23:31,149 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:23:31,149 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:23:31,150 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:23:31,151 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:23:31,151 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:23:31,152 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:23:31,152 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:23:31,152 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:23:31,152 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:23:31,153 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:23:31,153 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:23:31,154 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:23:31,155 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 00:23:31,181 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:23:31,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:23:31,182 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:23:31,182 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:23:31,183 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:23:31,183 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:23:31,184 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:23:31,184 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:23:31,184 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:23:31,185 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:23:31,185 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 00:23:31,185 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:23:31,185 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:23:31,185 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:23:31,185 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:23:31,185 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:23:31,186 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:23:31,186 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:23:31,186 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:23:31,186 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:23:31,186 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:23:31,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:23:31,187 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:23:31,187 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:23:31,187 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:23:31,187 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 00:23:31,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 00:23:31,187 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:23:31,188 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:23:31,188 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:23:31,188 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a900a56caf1252bf2b77371f0836914c913e44b231203ecd4eebd687a96fd0c2 [2022-07-14 00:23:31,387 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:23:31,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:23:31,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:23:31,409 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:23:31,409 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:23:31,410 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2022-07-14 00:23:31,449 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ace7fcb76/382ebe6150064d4ebaa1fcac9eac6ce7/FLAG79f7a46d0 [2022-07-14 00:23:32,124 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:23:32,125 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2022-07-14 00:23:32,170 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ace7fcb76/382ebe6150064d4ebaa1fcac9eac6ce7/FLAG79f7a46d0 [2022-07-14 00:23:32,500 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ace7fcb76/382ebe6150064d4ebaa1fcac9eac6ce7 [2022-07-14 00:23:32,502 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:23:32,503 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:23:32,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:23:32,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:23:32,507 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:23:32,508 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:23:32" (1/1) ... [2022-07-14 00:23:32,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28d65247 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:23:32, skipping insertion in model container [2022-07-14 00:23:32,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:23:32" (1/1) ... [2022-07-14 00:23:32,514 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:23:32,646 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:23:33,064 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5986] [2022-07-14 00:23:33,065 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5987-5988] [2022-07-14 00:23:33,440 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i[188410,188423] [2022-07-14 00:23:34,290 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:23:34,317 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:23:34,402 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [5986] [2022-07-14 00:23:34,403 WARN L1251 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [5987-5988] [2022-07-14 00:23:34,415 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i[188410,188423] [2022-07-14 00:23:34,624 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:23:34,739 INFO L208 MainTranslator]: Completed translation [2022-07-14 00:23:34,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:23:34 WrapperNode [2022-07-14 00:23:34,739 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 00:23:34,740 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 00:23:34,740 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 00:23:34,740 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 00:23:34,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:23:34" (1/1) ... [2022-07-14 00:23:34,847 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:23:34" (1/1) ... [2022-07-14 00:23:34,984 INFO L137 Inliner]: procedures = 350, calls = 2000, calls flagged for inlining = 171, calls inlined = 139, statements flattened = 4723 [2022-07-14 00:23:34,985 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 00:23:34,985 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 00:23:34,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 00:23:34,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 00:23:34,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:23:34" (1/1) ... [2022-07-14 00:23:34,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:23:34" (1/1) ... [2022-07-14 00:23:35,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:23:34" (1/1) ... [2022-07-14 00:23:35,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:23:34" (1/1) ... [2022-07-14 00:23:35,119 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:23:34" (1/1) ... [2022-07-14 00:23:35,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:23:34" (1/1) ... [2022-07-14 00:23:35,153 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:23:34" (1/1) ... [2022-07-14 00:23:35,235 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 00:23:35,236 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 00:23:35,236 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 00:23:35,236 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 00:23:35,237 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:23:34" (1/1) ... [2022-07-14 00:23:35,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:23:35,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:23:35,286 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-14 00:23:35,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-14 00:23:35,320 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 00:23:35,321 INFO L130 BoogieDeclarations]: Found specification of procedure get_page [2022-07-14 00:23:35,321 INFO L138 BoogieDeclarations]: Found implementation of procedure get_page [2022-07-14 00:23:35,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 00:23:35,321 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_release_tx_bufs [2022-07-14 00:23:35,321 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_release_tx_bufs [2022-07-14 00:23:35,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 00:23:35,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 00:23:35,322 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2022-07-14 00:23:35,322 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2022-07-14 00:23:35,322 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-07-14 00:23:35,322 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-07-14 00:23:35,322 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_change_mtu [2022-07-14 00:23:35,322 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_change_mtu [2022-07-14 00:23:35,322 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2022-07-14 00:23:35,322 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2022-07-14 00:23:35,323 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_write [2022-07-14 00:23:35,323 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_write [2022-07-14 00:23:35,323 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-07-14 00:23:35,323 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-07-14 00:23:35,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2022-07-14 00:23:35,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2022-07-14 00:23:35,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 00:23:35,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 00:23:35,324 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2022-07-14 00:23:35,324 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2022-07-14 00:23:35,324 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2022-07-14 00:23:35,324 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2022-07-14 00:23:35,324 INFO L130 BoogieDeclarations]: Found specification of procedure bind_evtchn_to_irqhandler [2022-07-14 00:23:35,324 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_evtchn_to_irqhandler [2022-07-14 00:23:35,324 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2022-07-14 00:23:35,324 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2022-07-14 00:23:35,325 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_remove [2022-07-14 00:23:35,325 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_remove [2022-07-14 00:23:35,325 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 00:23:35,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 00:23:35,325 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2022-07-14 00:23:35,325 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2022-07-14 00:23:35,325 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-14 00:23:35,326 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-14 00:23:35,326 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_grant_ring [2022-07-14 00:23:35,326 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_grant_ring [2022-07-14 00:23:35,326 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2022-07-14 00:23:35,326 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2022-07-14 00:23:35,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-07-14 00:23:35,326 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-07-14 00:23:35,326 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_claim_grant_reference [2022-07-14 00:23:35,327 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_claim_grant_reference [2022-07-14 00:23:35,327 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 00:23:35,327 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 00:23:35,327 INFO L130 BoogieDeclarations]: Found specification of procedure netif_set_real_num_tx_queues [2022-07-14 00:23:35,327 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_set_real_num_tx_queues [2022-07-14 00:23:35,327 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2022-07-14 00:23:35,327 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2022-07-14 00:23:35,328 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_disconnect_backend [2022-07-14 00:23:35,328 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_disconnect_backend [2022-07-14 00:23:35,328 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_stats64 [2022-07-14 00:23:35,328 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_stats64 [2022-07-14 00:23:35,328 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-14 00:23:35,328 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-14 00:23:35,328 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_alloc_evtchn [2022-07-14 00:23:35,328 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_alloc_evtchn [2022-07-14 00:23:35,329 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2022-07-14 00:23:35,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2022-07-14 00:23:35,329 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_alloc_grant_references [2022-07-14 00:23:35,329 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_alloc_grant_references [2022-07-14 00:23:35,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 00:23:35,329 INFO L130 BoogieDeclarations]: Found specification of procedure netfront_tx_slot_available [2022-07-14 00:23:35,329 INFO L138 BoogieDeclarations]: Found implementation of procedure netfront_tx_slot_available [2022-07-14 00:23:35,330 INFO L130 BoogieDeclarations]: Found specification of procedure notify_remote_via_irq [2022-07-14 00:23:35,330 INFO L138 BoogieDeclarations]: Found implementation of procedure notify_remote_via_irq [2022-07-14 00:23:35,330 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_release_grant_reference [2022-07-14 00:23:35,330 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_release_grant_reference [2022-07-14 00:23:35,330 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-07-14 00:23:35,330 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-07-14 00:23:35,330 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_can_sg [2022-07-14 00:23:35,330 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_can_sg [2022-07-14 00:23:35,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 00:23:35,331 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-14 00:23:35,331 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-14 00:23:35,331 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-14 00:23:35,331 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-14 00:23:35,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2022-07-14 00:23:35,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2022-07-14 00:23:35,332 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-07-14 00:23:35,332 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2022-07-14 00:23:35,332 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2022-07-14 00:23:35,332 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rxidx [2022-07-14 00:23:35,332 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rxidx [2022-07-14 00:23:35,332 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-14 00:23:35,332 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-14 00:23:35,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 00:23:35,333 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2022-07-14 00:23:35,333 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2022-07-14 00:23:35,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 00:23:35,333 INFO L130 BoogieDeclarations]: Found specification of procedure write_queue_xenstore_keys [2022-07-14 00:23:35,333 INFO L138 BoogieDeclarations]: Found implementation of procedure write_queue_xenstore_keys [2022-07-14 00:23:35,333 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2022-07-14 00:23:35,333 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2022-07-14 00:23:35,334 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2022-07-14 00:23:35,334 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2022-07-14 00:23:35,334 INFO L130 BoogieDeclarations]: Found specification of procedure add_id_to_freelist [2022-07-14 00:23:35,334 INFO L138 BoogieDeclarations]: Found implementation of procedure add_id_to_freelist [2022-07-14 00:23:35,334 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_alloc_rx_buffers [2022-07-14 00:23:35,334 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_alloc_rx_buffers [2022-07-14 00:23:35,334 INFO L130 BoogieDeclarations]: Found specification of procedure skb_entry_set_link [2022-07-14 00:23:35,334 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_entry_set_link [2022-07-14 00:23:35,335 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-14 00:23:35,335 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-14 00:23:35,335 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-14 00:23:35,335 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-14 00:23:35,335 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_bh [2022-07-14 00:23:35,335 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_bh [2022-07-14 00:23:35,335 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2022-07-14 00:23:35,335 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2022-07-14 00:23:35,336 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access_ref [2022-07-14 00:23:35,336 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access_ref [2022-07-14 00:23:35,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-14 00:23:35,336 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-14 00:23:35,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-14 00:23:35,336 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-07-14 00:23:35,336 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-07-14 00:23:35,337 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_free_grant_references [2022-07-14 00:23:35,337 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_free_grant_references [2022-07-14 00:23:35,337 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2022-07-14 00:23:35,337 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2022-07-14 00:23:35,337 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2022-07-14 00:23:35,337 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2022-07-14 00:23:35,337 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-14 00:23:35,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-14 00:23:35,338 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-14 00:23:35,338 INFO L130 BoogieDeclarations]: Found specification of procedure unbind_from_irqhandler [2022-07-14 00:23:35,338 INFO L138 BoogieDeclarations]: Found implementation of procedure unbind_from_irqhandler [2022-07-14 00:23:35,338 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2022-07-14 00:23:35,338 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2022-07-14 00:23:35,338 INFO L130 BoogieDeclarations]: Found specification of procedure netback_changed [2022-07-14 00:23:35,338 INFO L138 BoogieDeclarations]: Found implementation of procedure netback_changed [2022-07-14 00:23:35,339 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_poll_controller [2022-07-14 00:23:35,339 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_poll_controller [2022-07-14 00:23:35,339 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2022-07-14 00:23:35,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2022-07-14 00:23:35,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 00:23:35,339 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-14 00:23:35,339 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-14 00:23:35,339 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-14 00:23:35,340 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-14 00:23:35,340 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2022-07-14 00:23:35,340 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2022-07-14 00:23:35,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-07-14 00:23:35,340 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-07-14 00:23:35,340 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_select_queue [2022-07-14 00:23:35,340 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_select_queue [2022-07-14 00:23:35,340 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_end_access [2022-07-14 00:23:35,341 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_end_access [2022-07-14 00:23:35,341 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get [2022-07-14 00:23:35,341 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get [2022-07-14 00:23:35,341 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-14 00:23:35,341 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-14 00:23:35,341 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-07-14 00:23:35,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-07-14 00:23:35,341 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_ref [2022-07-14 00:23:35,341 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_ref [2022-07-14 00:23:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 00:23:35,342 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 00:23:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2022-07-14 00:23:35,342 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2022-07-14 00:23:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure skb_add_rx_frag [2022-07-14 00:23:35,342 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_add_rx_frag [2022-07-14 00:23:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 00:23:35,342 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2022-07-14 00:23:35,343 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2022-07-14 00:23:35,343 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-07-14 00:23:35,343 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-07-14 00:23:35,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 00:23:35,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 00:23:35,343 INFO L130 BoogieDeclarations]: Found specification of procedure get_id_from_freelist [2022-07-14 00:23:35,343 INFO L138 BoogieDeclarations]: Found implementation of procedure get_id_from_freelist [2022-07-14 00:23:35,344 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2022-07-14 00:23:35,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2022-07-14 00:23:35,344 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_fix_features [2022-07-14 00:23:35,344 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_fix_features [2022-07-14 00:23:35,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 00:23:35,344 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-14 00:23:35,344 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-14 00:23:35,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 00:23:35,345 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-07-14 00:23:35,345 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-07-14 00:23:35,345 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2022-07-14 00:23:35,345 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2022-07-14 00:23:35,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 00:23:35,345 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2022-07-14 00:23:35,345 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2022-07-14 00:23:35,345 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2022-07-14 00:23:35,346 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2022-07-14 00:23:35,346 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-07-14 00:23:35,346 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-07-14 00:23:35,346 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-07-14 00:23:35,346 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-07-14 00:23:35,346 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2022-07-14 00:23:35,346 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2022-07-14 00:23:35,346 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2022-07-14 00:23:35,347 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2022-07-14 00:23:35,347 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2022-07-14 00:23:35,347 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2022-07-14 00:23:35,347 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2022-07-14 00:23:35,347 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2022-07-14 00:23:35,347 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_grant_foreign_access_ref [2022-07-14 00:23:35,347 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_grant_foreign_access_ref [2022-07-14 00:23:35,348 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-14 00:23:35,348 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-14 00:23:35,348 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_set_features [2022-07-14 00:23:35,348 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_set_features [2022-07-14 00:23:35,348 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2022-07-14 00:23:35,348 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2022-07-14 00:23:35,348 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-14 00:23:35,348 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-14 00:23:35,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 00:23:35,349 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-07-14 00:23:35,349 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-07-14 00:23:35,349 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2022-07-14 00:23:35,349 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2022-07-14 00:23:35,349 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_free_evtchn [2022-07-14 00:23:35,349 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_free_evtchn [2022-07-14 00:23:35,349 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_skb [2022-07-14 00:23:35,349 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_skb [2022-07-14 00:23:35,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 00:23:35,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 00:23:35,350 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_buf_gc [2022-07-14 00:23:35,350 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_buf_gc [2022-07-14 00:23:35,350 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_bh [2022-07-14 00:23:35,350 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_bh [2022-07-14 00:23:35,350 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-14 00:23:35,350 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-14 00:23:35,909 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 00:23:35,913 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 00:23:36,683 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 00:23:43,233 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 00:23:43,260 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 00:23:43,260 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-14 00:23:43,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:23:43 BoogieIcfgContainer [2022-07-14 00:23:43,264 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 00:23:43,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 00:23:43,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 00:23:43,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 00:23:43,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:23:32" (1/3) ... [2022-07-14 00:23:43,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f5aed61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:23:43, skipping insertion in model container [2022-07-14 00:23:43,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:23:34" (2/3) ... [2022-07-14 00:23:43,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f5aed61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:23:43, skipping insertion in model container [2022-07-14 00:23:43,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:23:43" (3/3) ... [2022-07-14 00:23:43,273 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_bitvector_linux-3.16-rc1.tar.xz-43_2a-drivers--net--xen-netfront.ko-entry_point.cil.out.i [2022-07-14 00:23:43,284 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 00:23:43,285 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 00:23:43,365 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 00:23:43,371 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@64a9efcc, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@32ca15b7 [2022-07-14 00:23:43,372 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 00:23:43,380 INFO L276 IsEmpty]: Start isEmpty. Operand has 1624 states, 1148 states have (on average 1.318815331010453) internal successors, (1514), 1178 states have internal predecessors, (1514), 367 states have call successors, (367), 108 states have call predecessors, (367), 107 states have return successors, (362), 360 states have call predecessors, (362), 362 states have call successors, (362) [2022-07-14 00:23:43,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2022-07-14 00:23:43,410 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:23:43,411 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:23:43,412 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:23:43,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:23:43,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1904983006, now seen corresponding path program 1 times [2022-07-14 00:23:43,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:23:43,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520471287] [2022-07-14 00:23:43,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:23:43,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:23:43,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:43,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:23:43,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:43,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:23:43,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:43,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:23:43,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:44,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:23:44,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:44,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:23:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:44,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:23:44,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:44,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:23:44,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:44,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:23:44,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:44,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:23:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:44,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 00:23:44,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:44,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:23:44,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:44,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:23:44,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:44,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-07-14 00:23:44,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:44,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2022-07-14 00:23:44,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:44,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-07-14 00:23:44,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:44,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:23:44,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:44,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-07-14 00:23:44,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:44,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:23:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:44,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-14 00:23:44,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:44,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:23:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:44,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-07-14 00:23:44,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:44,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:23:44,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:44,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2022-07-14 00:23:44,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:44,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-14 00:23:44,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:44,290 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2022-07-14 00:23:44,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:23:44,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520471287] [2022-07-14 00:23:44,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520471287] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:23:44,293 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:23:44,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:23:44,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630976750] [2022-07-14 00:23:44,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:23:44,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:23:44,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:23:44,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:23:44,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:23:44,328 INFO L87 Difference]: Start difference. First operand has 1624 states, 1148 states have (on average 1.318815331010453) internal successors, (1514), 1178 states have internal predecessors, (1514), 367 states have call successors, (367), 108 states have call predecessors, (367), 107 states have return successors, (362), 360 states have call predecessors, (362), 362 states have call successors, (362) Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-14 00:23:50,611 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:23:53,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:23:56,414 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:23:57,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:23:57,578 INFO L93 Difference]: Finished difference Result 4651 states and 6525 transitions. [2022-07-14 00:23:57,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-07-14 00:23:57,589 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 162 [2022-07-14 00:23:57,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:23:57,630 INFO L225 Difference]: With dead ends: 4651 [2022-07-14 00:23:57,632 INFO L226 Difference]: Without dead ends: 2984 [2022-07-14 00:23:57,646 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2022-07-14 00:23:57,649 INFO L413 NwaCegarLoop]: 2196 mSDtfsCounter, 4049 mSDsluCounter, 3210 mSDsCounter, 0 mSdLazyCounter, 4042 mSolverCounterSat, 2808 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4275 SdHoareTripleChecker+Valid, 5406 SdHoareTripleChecker+Invalid, 6853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2808 IncrementalHoareTripleChecker+Valid, 4042 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2022-07-14 00:23:57,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4275 Valid, 5406 Invalid, 6853 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2808 Valid, 4042 Invalid, 3 Unknown, 0 Unchecked, 12.7s Time] [2022-07-14 00:23:57,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2984 states. [2022-07-14 00:23:57,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2984 to 2610. [2022-07-14 00:23:57,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2610 states, 1844 states have (on average 1.2787418655097613) internal successors, (2358), 1887 states have internal predecessors, (2358), 572 states have call successors, (572), 193 states have call predecessors, (572), 193 states have return successors, (576), 562 states have call predecessors, (576), 571 states have call successors, (576) [2022-07-14 00:23:57,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2610 states to 2610 states and 3506 transitions. [2022-07-14 00:23:57,853 INFO L78 Accepts]: Start accepts. Automaton has 2610 states and 3506 transitions. Word has length 162 [2022-07-14 00:23:57,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:23:57,854 INFO L495 AbstractCegarLoop]: Abstraction has 2610 states and 3506 transitions. [2022-07-14 00:23:57,854 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (26), 5 states have call predecessors, (26), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2022-07-14 00:23:57,855 INFO L276 IsEmpty]: Start isEmpty. Operand 2610 states and 3506 transitions. [2022-07-14 00:23:57,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-07-14 00:23:57,865 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:23:57,865 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:23:57,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 00:23:57,866 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:23:57,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:23:57,866 INFO L85 PathProgramCache]: Analyzing trace with hash -1691301829, now seen corresponding path program 1 times [2022-07-14 00:23:57,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:23:57,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338465488] [2022-07-14 00:23:57,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:23:57,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:23:57,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:58,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:23:58,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:58,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:23:58,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:58,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:23:58,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:58,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:23:58,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:58,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:23:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:58,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:23:58,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:58,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:23:58,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:58,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:23:58,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:58,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:23:58,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:58,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 00:23:58,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:58,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:23:58,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:58,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:23:58,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:58,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-14 00:23:58,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:58,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2022-07-14 00:23:58,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:58,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:23:58,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:58,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-14 00:23:58,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:58,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 00:23:58,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:58,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:23:58,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:58,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 00:23:58,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:23:58,226 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 159 trivial. 0 not checked. [2022-07-14 00:23:58,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:23:58,227 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338465488] [2022-07-14 00:23:58,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338465488] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:23:58,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:23:58,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:23:58,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804492449] [2022-07-14 00:23:58,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:23:58,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:23:58,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:23:58,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:23:58,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:23:58,232 INFO L87 Difference]: Start difference. First operand 2610 states and 3506 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-14 00:24:03,885 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:24:05,974 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:24:08,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:24:08,256 INFO L93 Difference]: Finished difference Result 6894 states and 9387 transitions. [2022-07-14 00:24:08,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 00:24:08,256 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 154 [2022-07-14 00:24:08,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:24:08,278 INFO L225 Difference]: With dead ends: 6894 [2022-07-14 00:24:08,278 INFO L226 Difference]: Without dead ends: 4311 [2022-07-14 00:24:08,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-14 00:24:08,290 INFO L413 NwaCegarLoop]: 3027 mSDtfsCounter, 2925 mSDsluCounter, 3830 mSDsCounter, 0 mSdLazyCounter, 3272 mSolverCounterSat, 1969 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3167 SdHoareTripleChecker+Valid, 6857 SdHoareTripleChecker+Invalid, 5243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1969 IncrementalHoareTripleChecker+Valid, 3272 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-07-14 00:24:08,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3167 Valid, 6857 Invalid, 5243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1969 Valid, 3272 Invalid, 2 Unknown, 0 Unchecked, 9.6s Time] [2022-07-14 00:24:08,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4311 states. [2022-07-14 00:24:08,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4311 to 3821. [2022-07-14 00:24:08,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3821 states, 2724 states have (on average 1.2826725403817916) internal successors, (3494), 2785 states have internal predecessors, (3494), 818 states have call successors, (818), 273 states have call predecessors, (818), 278 states have return successors, (845), 809 states have call predecessors, (845), 817 states have call successors, (845) [2022-07-14 00:24:08,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3821 states to 3821 states and 5157 transitions. [2022-07-14 00:24:08,475 INFO L78 Accepts]: Start accepts. Automaton has 3821 states and 5157 transitions. Word has length 154 [2022-07-14 00:24:08,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:24:08,476 INFO L495 AbstractCegarLoop]: Abstraction has 3821 states and 5157 transitions. [2022-07-14 00:24:08,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (22), 5 states have call predecessors, (22), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2022-07-14 00:24:08,476 INFO L276 IsEmpty]: Start isEmpty. Operand 3821 states and 5157 transitions. [2022-07-14 00:24:08,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-07-14 00:24:08,481 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:24:08,481 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:24:08,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 00:24:08,482 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:24:08,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:24:08,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1780284180, now seen corresponding path program 1 times [2022-07-14 00:24:08,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:24:08,483 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307472114] [2022-07-14 00:24:08,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:24:08,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:24:08,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:08,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:24:08,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:08,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:24:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:08,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:24:08,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:08,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:24:08,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:08,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:24:08,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:08,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:24:08,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:08,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:24:08,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:08,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:24:08,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:08,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:24:08,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:08,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 00:24:08,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:08,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:24:08,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:08,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:24:08,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:08,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-07-14 00:24:08,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:08,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-14 00:24:08,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:08,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-14 00:24:08,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:08,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2022-07-14 00:24:08,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:08,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-14 00:24:08,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:08,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-07-14 00:24:08,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:08,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-07-14 00:24:08,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:08,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:24:08,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:08,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-14 00:24:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:08,926 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-07-14 00:24:08,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:24:08,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307472114] [2022-07-14 00:24:08,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307472114] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:24:08,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:24:08,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 00:24:08,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474471329] [2022-07-14 00:24:08,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:24:08,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 00:24:08,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:24:08,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 00:24:08,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:24:08,930 INFO L87 Difference]: Start difference. First operand 3821 states and 5157 transitions. Second operand has 7 states, 7 states have (on average 14.0) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 00:24:14,262 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:24:16,784 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:24:19,143 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:24:21,221 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:24:21,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:24:21,983 INFO L93 Difference]: Finished difference Result 8104 states and 11046 transitions. [2022-07-14 00:24:21,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:24:21,984 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 181 [2022-07-14 00:24:21,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:24:22,002 INFO L225 Difference]: With dead ends: 8104 [2022-07-14 00:24:22,002 INFO L226 Difference]: Without dead ends: 4327 [2022-07-14 00:24:22,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-14 00:24:22,015 INFO L413 NwaCegarLoop]: 2029 mSDtfsCounter, 1053 mSDsluCounter, 5192 mSDsCounter, 0 mSdLazyCounter, 3844 mSolverCounterSat, 953 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 7221 SdHoareTripleChecker+Invalid, 4801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 953 IncrementalHoareTripleChecker+Valid, 3844 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2022-07-14 00:24:22,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1119 Valid, 7221 Invalid, 4801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [953 Valid, 3844 Invalid, 4 Unknown, 0 Unchecked, 12.8s Time] [2022-07-14 00:24:22,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4327 states. [2022-07-14 00:24:22,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4327 to 3851. [2022-07-14 00:24:22,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3851 states, 2743 states have (on average 1.2796208530805686) internal successors, (3510), 2806 states have internal predecessors, (3510), 828 states have call successors, (828), 273 states have call predecessors, (828), 279 states have return successors, (861), 819 states have call predecessors, (861), 827 states have call successors, (861) [2022-07-14 00:24:22,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3851 states to 3851 states and 5199 transitions. [2022-07-14 00:24:22,131 INFO L78 Accepts]: Start accepts. Automaton has 3851 states and 5199 transitions. Word has length 181 [2022-07-14 00:24:22,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:24:22,132 INFO L495 AbstractCegarLoop]: Abstraction has 3851 states and 5199 transitions. [2022-07-14 00:24:22,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.0) internal successors, (98), 4 states have internal predecessors, (98), 2 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 00:24:22,133 INFO L276 IsEmpty]: Start isEmpty. Operand 3851 states and 5199 transitions. [2022-07-14 00:24:22,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-14 00:24:22,136 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:24:22,136 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:24:22,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 00:24:22,137 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:24:22,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:24:22,137 INFO L85 PathProgramCache]: Analyzing trace with hash -342410580, now seen corresponding path program 1 times [2022-07-14 00:24:22,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:24:22,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201075318] [2022-07-14 00:24:22,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:24:22,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:24:22,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:22,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:24:22,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:22,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:24:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:22,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:24:22,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:22,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:24:22,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:22,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:24:22,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:22,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:24:22,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:22,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:24:22,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:22,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:24:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:22,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:24:22,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:22,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 00:24:22,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:22,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:24:22,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:22,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:24:22,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:22,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-14 00:24:22,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:22,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-14 00:24:22,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:22,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-07-14 00:24:22,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:22,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 00:24:22,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:22,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-14 00:24:22,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:22,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2022-07-14 00:24:22,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:22,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2022-07-14 00:24:22,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:22,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:24:22,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:22,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-07-14 00:24:22,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:22,492 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2022-07-14 00:24:22,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:24:22,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201075318] [2022-07-14 00:24:22,493 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201075318] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:24:22,493 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:24:22,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:24:22,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635080410] [2022-07-14 00:24:22,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:24:22,494 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:24:22,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:24:22,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:24:22,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:24:22,495 INFO L87 Difference]: Start difference. First operand 3851 states and 5199 transitions. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-14 00:24:28,419 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:24:31,468 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:24:33,679 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:24:36,033 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:24:38,120 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:24:40,195 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:24:42,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:24:43,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:24:43,765 INFO L93 Difference]: Finished difference Result 10867 states and 14820 transitions. [2022-07-14 00:24:43,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 00:24:43,765 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 189 [2022-07-14 00:24:43,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:24:43,798 INFO L225 Difference]: With dead ends: 10867 [2022-07-14 00:24:43,799 INFO L226 Difference]: Without dead ends: 7068 [2022-07-14 00:24:43,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-14 00:24:43,813 INFO L413 NwaCegarLoop]: 3104 mSDtfsCounter, 3319 mSDsluCounter, 5160 mSDsCounter, 0 mSdLazyCounter, 4207 mSolverCounterSat, 1798 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3657 SdHoareTripleChecker+Valid, 8264 SdHoareTripleChecker+Invalid, 6012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1798 IncrementalHoareTripleChecker+Valid, 4207 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.9s IncrementalHoareTripleChecker+Time [2022-07-14 00:24:43,814 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3657 Valid, 8264 Invalid, 6012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1798 Valid, 4207 Invalid, 7 Unknown, 0 Unchecked, 20.9s Time] [2022-07-14 00:24:43,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7068 states. [2022-07-14 00:24:44,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7068 to 6129. [2022-07-14 00:24:44,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6129 states, 4367 states have (on average 1.2784520265628578) internal successors, (5583), 4462 states have internal predecessors, (5583), 1306 states have call successors, (1306), 449 states have call predecessors, (1306), 455 states have return successors, (1340), 1296 states have call predecessors, (1340), 1305 states have call successors, (1340) [2022-07-14 00:24:44,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6129 states to 6129 states and 8229 transitions. [2022-07-14 00:24:44,056 INFO L78 Accepts]: Start accepts. Automaton has 6129 states and 8229 transitions. Word has length 189 [2022-07-14 00:24:44,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:24:44,057 INFO L495 AbstractCegarLoop]: Abstraction has 6129 states and 8229 transitions. [2022-07-14 00:24:44,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (24), 5 states have call predecessors, (24), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2022-07-14 00:24:44,058 INFO L276 IsEmpty]: Start isEmpty. Operand 6129 states and 8229 transitions. [2022-07-14 00:24:44,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-07-14 00:24:44,063 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:24:44,063 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:24:44,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 00:24:44,063 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:24:44,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:24:44,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1252714224, now seen corresponding path program 1 times [2022-07-14 00:24:44,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:24:44,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020979363] [2022-07-14 00:24:44,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:24:44,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:24:44,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:44,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:24:44,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:44,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:24:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:44,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:24:44,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:44,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:24:44,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:44,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:24:44,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:44,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:24:44,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:44,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:24:44,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:44,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:24:44,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:44,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:24:44,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:44,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 00:24:44,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:44,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:24:44,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:44,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:24:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:44,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-14 00:24:44,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:44,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-14 00:24:44,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:44,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-14 00:24:44,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:44,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-14 00:24:44,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:44,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-07-14 00:24:44,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:44,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-07-14 00:24:44,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:44,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2022-07-14 00:24:44,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:44,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:24:44,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:44,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-14 00:24:44,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:24:44,449 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2022-07-14 00:24:44,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:24:44,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020979363] [2022-07-14 00:24:44,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020979363] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:24:44,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:24:44,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:24:44,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656552031] [2022-07-14 00:24:44,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:24:44,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:24:44,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:24:44,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:24:44,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:24:44,451 INFO L87 Difference]: Start difference. First operand 6129 states and 8229 transitions. Second operand has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 00:24:49,666 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:24:52,466 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:24:54,548 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:24:56,783 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:24:59,112 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:25:01,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:25:03,311 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:25:05,408 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:25:07,486 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:25:09,567 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:25:10,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:25:10,696 INFO L93 Difference]: Finished difference Result 12367 states and 16916 transitions. [2022-07-14 00:25:10,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 00:25:10,697 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 187 [2022-07-14 00:25:10,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:25:10,748 INFO L225 Difference]: With dead ends: 12367 [2022-07-14 00:25:10,748 INFO L226 Difference]: Without dead ends: 12364 [2022-07-14 00:25:10,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-07-14 00:25:10,756 INFO L413 NwaCegarLoop]: 2369 mSDtfsCounter, 3867 mSDsluCounter, 3196 mSDsCounter, 0 mSdLazyCounter, 3049 mSolverCounterSat, 2600 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4104 SdHoareTripleChecker+Valid, 5565 SdHoareTripleChecker+Invalid, 5659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2600 IncrementalHoareTripleChecker+Valid, 3049 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.8s IncrementalHoareTripleChecker+Time [2022-07-14 00:25:10,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4104 Valid, 5565 Invalid, 5659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2600 Valid, 3049 Invalid, 10 Unknown, 0 Unchecked, 25.8s Time] [2022-07-14 00:25:10,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12364 states. [2022-07-14 00:25:11,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12364 to 10620. [2022-07-14 00:25:11,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10620 states, 7670 states have (on average 1.2891786179921774) internal successors, (9888), 7841 states have internal predecessors, (9888), 2133 states have call successors, (2133), 804 states have call predecessors, (2133), 816 states have return successors, (2221), 2105 states have call predecessors, (2221), 2132 states have call successors, (2221) [2022-07-14 00:25:11,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10620 states to 10620 states and 14242 transitions. [2022-07-14 00:25:11,176 INFO L78 Accepts]: Start accepts. Automaton has 10620 states and 14242 transitions. Word has length 187 [2022-07-14 00:25:11,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:25:11,176 INFO L495 AbstractCegarLoop]: Abstraction has 10620 states and 14242 transitions. [2022-07-14 00:25:11,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.833333333333332) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (24), 6 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2022-07-14 00:25:11,177 INFO L276 IsEmpty]: Start isEmpty. Operand 10620 states and 14242 transitions. [2022-07-14 00:25:11,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2022-07-14 00:25:11,189 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:25:11,190 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:25:11,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-14 00:25:11,190 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:25:11,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:25:11,191 INFO L85 PathProgramCache]: Analyzing trace with hash -898207309, now seen corresponding path program 1 times [2022-07-14 00:25:11,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:25:11,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665502554] [2022-07-14 00:25:11,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:25:11,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:25:11,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:25:11,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:25:11,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:25:11,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:25:11,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:25:11,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:25:11,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:25:11,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:25:11,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:25:11,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 00:25:11,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:25:11,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:25:11,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-14 00:25:11,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-14 00:25:11,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-14 00:25:11,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-14 00:25:11,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 00:25:11,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:25:11,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 00:25:11,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:25:11,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-14 00:25:11,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-14 00:25:11,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-07-14 00:25:11,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2022-07-14 00:25:11,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2022-07-14 00:25:11,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-14 00:25:11,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:25:11,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-14 00:25:11,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:25:11,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-14 00:25:11,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:25:11,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-14 00:25:11,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2022-07-14 00:25:11,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:11,532 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2022-07-14 00:25:11,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:25:11,532 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665502554] [2022-07-14 00:25:11,532 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665502554] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:25:11,533 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:25:11,533 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 00:25:11,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467166013] [2022-07-14 00:25:11,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:25:11,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 00:25:11,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:25:11,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 00:25:11,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:25:11,536 INFO L87 Difference]: Start difference. First operand 10620 states and 14242 transitions. Second operand has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-14 00:25:18,325 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:25:21,549 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:25:24,081 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:25:26,170 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:25:28,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:25:31,144 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:25:31,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:25:31,945 INFO L93 Difference]: Finished difference Result 28745 states and 39091 transitions. [2022-07-14 00:25:31,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-14 00:25:31,948 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 254 [2022-07-14 00:25:31,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:25:32,008 INFO L225 Difference]: With dead ends: 28745 [2022-07-14 00:25:32,009 INFO L226 Difference]: Without dead ends: 18177 [2022-07-14 00:25:32,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2022-07-14 00:25:32,039 INFO L413 NwaCegarLoop]: 2898 mSDtfsCounter, 3657 mSDsluCounter, 5162 mSDsCounter, 0 mSdLazyCounter, 5611 mSolverCounterSat, 2731 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3859 SdHoareTripleChecker+Valid, 8060 SdHoareTripleChecker+Invalid, 8348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2731 IncrementalHoareTripleChecker+Valid, 5611 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.7s IncrementalHoareTripleChecker+Time [2022-07-14 00:25:32,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3859 Valid, 8060 Invalid, 8348 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2731 Valid, 5611 Invalid, 6 Unknown, 0 Unchecked, 19.7s Time] [2022-07-14 00:25:32,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18177 states. [2022-07-14 00:25:32,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18177 to 15445. [2022-07-14 00:25:32,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15445 states, 11300 states have (on average 1.2875221238938053) internal successors, (14549), 11542 states have internal predecessors, (14549), 2940 states have call successors, (2940), 1176 states have call predecessors, (2940), 1204 states have return successors, (3072), 2905 states have call predecessors, (3072), 2939 states have call successors, (3072) [2022-07-14 00:25:32,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15445 states to 15445 states and 20561 transitions. [2022-07-14 00:25:32,592 INFO L78 Accepts]: Start accepts. Automaton has 15445 states and 20561 transitions. Word has length 254 [2022-07-14 00:25:32,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:25:32,592 INFO L495 AbstractCegarLoop]: Abstraction has 15445 states and 20561 transitions. [2022-07-14 00:25:32,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 18.571428571428573) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2022-07-14 00:25:32,593 INFO L276 IsEmpty]: Start isEmpty. Operand 15445 states and 20561 transitions. [2022-07-14 00:25:32,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2022-07-14 00:25:32,609 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:25:32,610 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:25:32,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 00:25:32,610 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:25:32,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:25:32,610 INFO L85 PathProgramCache]: Analyzing trace with hash 2121719809, now seen corresponding path program 1 times [2022-07-14 00:25:32,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:25:32,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850184051] [2022-07-14 00:25:32,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:25:32,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:25:32,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:32,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:25:32,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:32,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:25:32,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:32,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:25:32,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:32,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:25:32,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:32,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:25:32,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:32,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:25:32,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:32,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:25:32,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:32,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:25:32,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:32,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:25:32,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:32,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 00:25:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:32,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:25:32,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:32,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:25:32,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:32,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-14 00:25:32,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:32,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-14 00:25:32,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:32,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-14 00:25:32,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:32,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-14 00:25:32,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:32,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 00:25:32,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:32,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:25:32,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:32,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 00:25:32,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:32,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:25:32,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:32,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-14 00:25:32,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:32,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-14 00:25:32,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:32,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2022-07-14 00:25:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:32,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-14 00:25:32,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:32,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2022-07-14 00:25:32,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:32,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-14 00:25:32,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:32,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:25:32,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:32,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2022-07-14 00:25:32,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:32,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:25:32,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:32,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2022-07-14 00:25:32,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:33,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:25:33,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:33,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2022-07-14 00:25:33,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:33,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2022-07-14 00:25:33,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:33,126 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2022-07-14 00:25:33,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:25:33,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850184051] [2022-07-14 00:25:33,127 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850184051] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:25:33,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:25:33,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 00:25:33,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714701134] [2022-07-14 00:25:33,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:25:33,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 00:25:33,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:25:33,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 00:25:33,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:25:33,129 INFO L87 Difference]: Start difference. First operand 15445 states and 20561 transitions. Second operand has 7 states, 7 states have (on average 20.0) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-14 00:25:38,235 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:25:41,236 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:25:43,323 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:25:44,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:25:44,282 INFO L93 Difference]: Finished difference Result 33504 states and 45164 transitions. [2022-07-14 00:25:44,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-07-14 00:25:44,282 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 273 [2022-07-14 00:25:44,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:25:44,339 INFO L225 Difference]: With dead ends: 33504 [2022-07-14 00:25:44,339 INFO L226 Difference]: Without dead ends: 18111 [2022-07-14 00:25:44,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-07-14 00:25:44,376 INFO L413 NwaCegarLoop]: 1913 mSDtfsCounter, 2388 mSDsluCounter, 3266 mSDsCounter, 0 mSdLazyCounter, 3274 mSolverCounterSat, 2103 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2519 SdHoareTripleChecker+Valid, 5179 SdHoareTripleChecker+Invalid, 5380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2103 IncrementalHoareTripleChecker+Valid, 3274 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2022-07-14 00:25:44,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2519 Valid, 5179 Invalid, 5380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2103 Valid, 3274 Invalid, 3 Unknown, 0 Unchecked, 10.4s Time] [2022-07-14 00:25:44,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18111 states. [2022-07-14 00:25:44,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18111 to 15447. [2022-07-14 00:25:44,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15447 states, 11302 states have (on average 1.2874712440276057) internal successors, (14551), 11544 states have internal predecessors, (14551), 2940 states have call successors, (2940), 1176 states have call predecessors, (2940), 1204 states have return successors, (3072), 2905 states have call predecessors, (3072), 2939 states have call successors, (3072) [2022-07-14 00:25:44,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15447 states to 15447 states and 20563 transitions. [2022-07-14 00:25:44,915 INFO L78 Accepts]: Start accepts. Automaton has 15447 states and 20563 transitions. Word has length 273 [2022-07-14 00:25:44,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:25:44,915 INFO L495 AbstractCegarLoop]: Abstraction has 15447 states and 20563 transitions. [2022-07-14 00:25:44,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.0) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (35), 6 states have call predecessors, (35), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-14 00:25:44,916 INFO L276 IsEmpty]: Start isEmpty. Operand 15447 states and 20563 transitions. [2022-07-14 00:25:44,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2022-07-14 00:25:44,933 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:25:44,933 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:25:44,933 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-14 00:25:44,934 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:25:44,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:25:44,934 INFO L85 PathProgramCache]: Analyzing trace with hash -782873689, now seen corresponding path program 1 times [2022-07-14 00:25:44,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:25:44,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800440303] [2022-07-14 00:25:44,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:25:44,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:25:45,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:25:45,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:25:45,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:25:45,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:25:45,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:25:45,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:25:45,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:25:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:25:45,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:25:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 00:25:45,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:25:45,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:25:45,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-14 00:25:45,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-14 00:25:45,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-14 00:25:45,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-14 00:25:45,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 00:25:45,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:25:45,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 00:25:45,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:25:45,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-14 00:25:45,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2022-07-14 00:25:45,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-14 00:25:45,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-14 00:25:45,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 00:25:45,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-14 00:25:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:25:45,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-14 00:25:45,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:25:45,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2022-07-14 00:25:45,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:25:45,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-07-14 00:25:45,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2022-07-14 00:25:45,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:45,465 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2022-07-14 00:25:45,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:25:45,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800440303] [2022-07-14 00:25:45,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800440303] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:25:45,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [318834314] [2022-07-14 00:25:45,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:25:45,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:25:45,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:25:45,468 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:25:45,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 00:25:46,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:25:46,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 2993 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 00:25:46,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:25:46,336 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2022-07-14 00:25:46,336 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:25:46,483 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2022-07-14 00:25:46,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [318834314] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:25:46,483 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 00:25:46,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 11 [2022-07-14 00:25:46,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523960098] [2022-07-14 00:25:46,484 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 00:25:46,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-07-14 00:25:46,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:25:46,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-07-14 00:25:46,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-07-14 00:25:46,487 INFO L87 Difference]: Start difference. First operand 15447 states and 20563 transitions. Second operand has 11 states, 11 states have (on average 16.181818181818183) internal successors, (178), 7 states have internal predecessors, (178), 2 states have call successors, (65), 6 states have call predecessors, (65), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-07-14 00:25:53,242 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:25:56,167 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:25:58,248 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:26:00,769 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:26:01,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:26:01,888 INFO L93 Difference]: Finished difference Result 37169 states and 50924 transitions. [2022-07-14 00:26:01,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-14 00:26:01,889 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 16.181818181818183) internal successors, (178), 7 states have internal predecessors, (178), 2 states have call successors, (65), 6 states have call predecessors, (65), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 277 [2022-07-14 00:26:01,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:26:01,977 INFO L225 Difference]: With dead ends: 37169 [2022-07-14 00:26:01,977 INFO L226 Difference]: Without dead ends: 21774 [2022-07-14 00:26:02,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 630 GetRequests, 617 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-07-14 00:26:02,015 INFO L413 NwaCegarLoop]: 2422 mSDtfsCounter, 2949 mSDsluCounter, 5639 mSDsCounter, 0 mSdLazyCounter, 5076 mSolverCounterSat, 2431 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3254 SdHoareTripleChecker+Valid, 8061 SdHoareTripleChecker+Invalid, 7511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2431 IncrementalHoareTripleChecker+Valid, 5076 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2022-07-14 00:26:02,016 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3254 Valid, 8061 Invalid, 7511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2431 Valid, 5076 Invalid, 4 Unknown, 0 Unchecked, 14.4s Time] [2022-07-14 00:26:02,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21774 states. [2022-07-14 00:26:02,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21774 to 15467. [2022-07-14 00:26:02,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15467 states, 11322 states have (on average 1.287316728493199) internal successors, (14575), 11564 states have internal predecessors, (14575), 2940 states have call successors, (2940), 1176 states have call predecessors, (2940), 1204 states have return successors, (3072), 2905 states have call predecessors, (3072), 2939 states have call successors, (3072) [2022-07-14 00:26:02,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15467 states to 15467 states and 20587 transitions. [2022-07-14 00:26:02,702 INFO L78 Accepts]: Start accepts. Automaton has 15467 states and 20587 transitions. Word has length 277 [2022-07-14 00:26:02,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:26:02,703 INFO L495 AbstractCegarLoop]: Abstraction has 15467 states and 20587 transitions. [2022-07-14 00:26:02,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.181818181818183) internal successors, (178), 7 states have internal predecessors, (178), 2 states have call successors, (65), 6 states have call predecessors, (65), 2 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2022-07-14 00:26:02,704 INFO L276 IsEmpty]: Start isEmpty. Operand 15467 states and 20587 transitions. [2022-07-14 00:26:02,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2022-07-14 00:26:02,723 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:26:02,723 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:26:02,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-14 00:26:02,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:26:02,932 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:26:02,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:26:02,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1852354626, now seen corresponding path program 1 times [2022-07-14 00:26:02,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:26:02,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289596843] [2022-07-14 00:26:02,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:26:02,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:26:03,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:26:03,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:26:03,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:26:03,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:26:03,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:26:03,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:26:03,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:26:03,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:26:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:26:03,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 00:26:03,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:26:03,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:26:03,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-14 00:26:03,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-14 00:26:03,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-14 00:26:03,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-14 00:26:03,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 00:26:03,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:26:03,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 00:26:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:26:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-14 00:26:03,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-14 00:26:03,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-14 00:26:03,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2022-07-14 00:26:03,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2022-07-14 00:26:03,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2022-07-14 00:26:03,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:26:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-14 00:26:03,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:26:03,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2022-07-14 00:26:03,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:26:03,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2022-07-14 00:26:03,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2022-07-14 00:26:03,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:03,583 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2022-07-14 00:26:03,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:26:03,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289596843] [2022-07-14 00:26:03,584 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289596843] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:26:03,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960149267] [2022-07-14 00:26:03,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:26:03,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:26:03,584 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:26:03,588 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:26:03,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 00:26:04,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:04,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 2992 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 00:26:04,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:26:04,510 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2022-07-14 00:26:04,510 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:26:04,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960149267] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:26:04,511 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:26:04,511 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [16] total 19 [2022-07-14 00:26:04,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188356870] [2022-07-14 00:26:04,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:26:04,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:26:04,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:26:04,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:26:04,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=306, Unknown=0, NotChecked=0, Total=342 [2022-07-14 00:26:04,513 INFO L87 Difference]: Start difference. First operand 15467 states and 20587 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-14 00:26:05,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:26:05,186 INFO L93 Difference]: Finished difference Result 32548 states and 43645 transitions. [2022-07-14 00:26:05,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:26:05,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 278 [2022-07-14 00:26:05,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:26:05,233 INFO L225 Difference]: With dead ends: 32548 [2022-07-14 00:26:05,234 INFO L226 Difference]: Without dead ends: 17133 [2022-07-14 00:26:05,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 356 GetRequests, 337 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2022-07-14 00:26:05,264 INFO L413 NwaCegarLoop]: 2448 mSDtfsCounter, 921 mSDsluCounter, 7076 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 940 SdHoareTripleChecker+Valid, 9524 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:26:05,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [940 Valid, 9524 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 00:26:05,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17133 states. [2022-07-14 00:26:05,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17133 to 15471. [2022-07-14 00:26:05,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15471 states, 11326 states have (on average 1.2872152569309554) internal successors, (14579), 11568 states have internal predecessors, (14579), 2940 states have call successors, (2940), 1176 states have call predecessors, (2940), 1204 states have return successors, (3072), 2905 states have call predecessors, (3072), 2939 states have call successors, (3072) [2022-07-14 00:26:05,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15471 states to 15471 states and 20591 transitions. [2022-07-14 00:26:05,877 INFO L78 Accepts]: Start accepts. Automaton has 15471 states and 20591 transitions. Word has length 278 [2022-07-14 00:26:05,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:26:05,879 INFO L495 AbstractCegarLoop]: Abstraction has 15471 states and 20591 transitions. [2022-07-14 00:26:05,879 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-14 00:26:05,879 INFO L276 IsEmpty]: Start isEmpty. Operand 15471 states and 20591 transitions. [2022-07-14 00:26:05,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2022-07-14 00:26:05,897 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:26:05,897 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:26:05,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-14 00:26:06,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-07-14 00:26:06,126 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:26:06,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:26:06,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1280301555, now seen corresponding path program 2 times [2022-07-14 00:26:06,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:26:06,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [658105980] [2022-07-14 00:26:06,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:26:06,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:26:06,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:26:06,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:26:06,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:26:06,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:26:06,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:26:06,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:26:06,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:26:06,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:26:06,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:26:06,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 00:26:06,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-07-14 00:26:06,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2022-07-14 00:26:06,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2022-07-14 00:26:06,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2022-07-14 00:26:06,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-07-14 00:26:06,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2022-07-14 00:26:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2022-07-14 00:26:06,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:26:06,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-14 00:26:06,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-07-14 00:26:06,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-07-14 00:26:06,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2022-07-14 00:26:06,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2022-07-14 00:26:06,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2022-07-14 00:26:06,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2022-07-14 00:26:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2022-07-14 00:26:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:26:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2022-07-14 00:26:06,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:26:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2022-07-14 00:26:06,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:26:06,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-07-14 00:26:06,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-14 00:26:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:06,735 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 327 trivial. 0 not checked. [2022-07-14 00:26:06,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:26:06,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [658105980] [2022-07-14 00:26:06,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [658105980] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:26:06,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [18968750] [2022-07-14 00:26:06,736 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 00:26:06,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:26:06,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:26:06,737 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:26:06,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-14 00:26:07,682 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 00:26:07,682 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 00:26:07,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 3047 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-14 00:26:07,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:26:07,757 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 116 proven. 0 refuted. 0 times theorem prover too weak. 223 trivial. 0 not checked. [2022-07-14 00:26:07,758 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:26:07,758 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [18968750] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:26:07,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:26:07,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [16] total 18 [2022-07-14 00:26:07,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819750158] [2022-07-14 00:26:07,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:26:07,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 00:26:07,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:26:07,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 00:26:07,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2022-07-14 00:26:07,759 INFO L87 Difference]: Start difference. First operand 15471 states and 20591 transitions. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-14 00:26:08,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:26:08,271 INFO L93 Difference]: Finished difference Result 30938 states and 41248 transitions. [2022-07-14 00:26:08,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 00:26:08,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 285 [2022-07-14 00:26:08,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:26:08,323 INFO L225 Difference]: With dead ends: 30938 [2022-07-14 00:26:08,323 INFO L226 Difference]: Without dead ends: 15484 [2022-07-14 00:26:08,356 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 343 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=304, Unknown=0, NotChecked=0, Total=342 [2022-07-14 00:26:08,356 INFO L413 NwaCegarLoop]: 2166 mSDtfsCounter, 2 mSDsluCounter, 4326 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 6492 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:26:08,357 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 6492 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 00:26:08,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15484 states. [2022-07-14 00:26:08,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15484 to 15484. [2022-07-14 00:26:08,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15484 states, 11339 states have (on average 1.2868859687803158) internal successors, (14592), 11581 states have internal predecessors, (14592), 2940 states have call successors, (2940), 1176 states have call predecessors, (2940), 1204 states have return successors, (3072), 2905 states have call predecessors, (3072), 2939 states have call successors, (3072) [2022-07-14 00:26:09,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15484 states to 15484 states and 20604 transitions. [2022-07-14 00:26:09,015 INFO L78 Accepts]: Start accepts. Automaton has 15484 states and 20604 transitions. Word has length 285 [2022-07-14 00:26:09,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:26:09,016 INFO L495 AbstractCegarLoop]: Abstraction has 15484 states and 20604 transitions. [2022-07-14 00:26:09,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 2 states have call successors, (35), 2 states have call predecessors, (35), 3 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2022-07-14 00:26:09,016 INFO L276 IsEmpty]: Start isEmpty. Operand 15484 states and 20604 transitions. [2022-07-14 00:26:09,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2022-07-14 00:26:09,037 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:26:09,037 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:26:09,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-14 00:26:09,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:26:09,264 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:26:09,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:26:09,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1301539557, now seen corresponding path program 1 times [2022-07-14 00:26:09,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:26:09,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6511094] [2022-07-14 00:26:09,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:26:09,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:26:09,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:26:09,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:26:09,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:26:09,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:26:09,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:26:09,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:26:09,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:26:09,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:26:09,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:26:09,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 00:26:09,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2022-07-14 00:26:09,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2022-07-14 00:26:09,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2022-07-14 00:26:09,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:26:09,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-07-14 00:26:09,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2022-07-14 00:26:09,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2022-07-14 00:26:09,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:26:09,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-14 00:26:09,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-14 00:26:09,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-14 00:26:09,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2022-07-14 00:26:09,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 00:26:09,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2022-07-14 00:26:09,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-14 00:26:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2022-07-14 00:26:09,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:26:09,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-07-14 00:26:09,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:26:09,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2022-07-14 00:26:09,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:26:09,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2022-07-14 00:26:09,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2022-07-14 00:26:09,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:09,942 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2022-07-14 00:26:09,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:26:09,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6511094] [2022-07-14 00:26:09,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6511094] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:26:09,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [667128717] [2022-07-14 00:26:09,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:26:09,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:26:09,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:26:09,953 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:26:09,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-14 00:26:10,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:10,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 3092 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 00:26:10,848 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:26:10,917 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 122 proven. 1 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2022-07-14 00:26:10,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:26:11,113 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2022-07-14 00:26:11,113 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [667128717] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:26:11,113 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 00:26:11,113 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 5, 5] total 22 [2022-07-14 00:26:11,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857724400] [2022-07-14 00:26:11,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 00:26:11,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-14 00:26:11,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:26:11,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-14 00:26:11,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2022-07-14 00:26:11,115 INFO L87 Difference]: Start difference. First operand 15484 states and 20604 transitions. Second operand has 22 states, 20 states have (on average 12.05) internal successors, (241), 15 states have internal predecessors, (241), 4 states have call successors, (79), 6 states have call predecessors, (79), 7 states have return successors, (64), 5 states have call predecessors, (64), 4 states have call successors, (64) [2022-07-14 00:26:25,276 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:26:27,364 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:26:29,444 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:26:31,523 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:26:33,461 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:26:38,306 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:26:40,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:26:43,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:26:43,996 INFO L93 Difference]: Finished difference Result 37073 states and 50853 transitions. [2022-07-14 00:26:43,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-07-14 00:26:43,997 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 12.05) internal successors, (241), 15 states have internal predecessors, (241), 4 states have call successors, (79), 6 states have call predecessors, (79), 7 states have return successors, (64), 5 states have call predecessors, (64), 4 states have call successors, (64) Word has length 288 [2022-07-14 00:26:43,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:26:44,059 INFO L225 Difference]: With dead ends: 37073 [2022-07-14 00:26:44,059 INFO L226 Difference]: Without dead ends: 21606 [2022-07-14 00:26:44,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 675 GetRequests, 634 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=260, Invalid=1546, Unknown=0, NotChecked=0, Total=1806 [2022-07-14 00:26:44,094 INFO L413 NwaCegarLoop]: 2598 mSDtfsCounter, 3466 mSDsluCounter, 27001 mSDsCounter, 0 mSdLazyCounter, 20881 mSolverCounterSat, 2158 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3595 SdHoareTripleChecker+Valid, 29599 SdHoareTripleChecker+Invalid, 23045 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2158 IncrementalHoareTripleChecker+Valid, 20881 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:26:44,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3595 Valid, 29599 Invalid, 23045 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2158 Valid, 20881 Invalid, 6 Unknown, 0 Unchecked, 31.1s Time] [2022-07-14 00:26:44,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21606 states. [2022-07-14 00:26:44,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21606 to 15529. [2022-07-14 00:26:44,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15529 states, 11377 states have (on average 1.2861914388678914) internal successors, (14633), 11619 states have internal predecessors, (14633), 2946 states have call successors, (2946), 1177 states have call predecessors, (2946), 1205 states have return successors, (3078), 2911 states have call predecessors, (3078), 2945 states have call successors, (3078) [2022-07-14 00:26:44,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15529 states to 15529 states and 20657 transitions. [2022-07-14 00:26:44,867 INFO L78 Accepts]: Start accepts. Automaton has 15529 states and 20657 transitions. Word has length 288 [2022-07-14 00:26:44,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:26:44,867 INFO L495 AbstractCegarLoop]: Abstraction has 15529 states and 20657 transitions. [2022-07-14 00:26:44,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 12.05) internal successors, (241), 15 states have internal predecessors, (241), 4 states have call successors, (79), 6 states have call predecessors, (79), 7 states have return successors, (64), 5 states have call predecessors, (64), 4 states have call successors, (64) [2022-07-14 00:26:44,867 INFO L276 IsEmpty]: Start isEmpty. Operand 15529 states and 20657 transitions. [2022-07-14 00:26:44,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2022-07-14 00:26:44,886 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:26:44,887 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 10, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:26:44,921 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-14 00:26:45,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:26:45,096 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:26:45,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:26:45,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1166084140, now seen corresponding path program 1 times [2022-07-14 00:26:45,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:26:45,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686930200] [2022-07-14 00:26:45,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:26:45,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:26:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:26:45,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:26:45,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:26:45,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:26:45,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:26:45,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:26:45,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:26:45,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:26:45,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:26:45,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 00:26:45,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 00:26:45,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-14 00:26:45,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2022-07-14 00:26:45,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-07-14 00:26:45,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2022-07-14 00:26:45,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-14 00:26:45,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 00:26:45,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-07-14 00:26:45,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2022-07-14 00:26:45,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2022-07-14 00:26:45,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:26:45,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-14 00:26:45,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-14 00:26:45,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-07-14 00:26:45,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2022-07-14 00:26:45,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-14 00:26:45,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2022-07-14 00:26:45,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-14 00:26:45,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2022-07-14 00:26:45,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:26:45,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2022-07-14 00:26:45,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:26:45,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2022-07-14 00:26:45,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:26:45,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2022-07-14 00:26:45,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2022-07-14 00:26:45,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:45,527 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 414 trivial. 0 not checked. [2022-07-14 00:26:45,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:26:45,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686930200] [2022-07-14 00:26:45,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686930200] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 00:26:45,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717978442] [2022-07-14 00:26:45,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:26:45,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 00:26:45,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:26:45,529 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 00:26:45,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-14 00:26:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:26:46,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 3428 conjuncts, 21 conjunts are in the unsatisfiable core [2022-07-14 00:26:46,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:26:46,466 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 127 proven. 50 refuted. 0 times theorem prover too weak. 247 trivial. 0 not checked. [2022-07-14 00:26:46,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:26:46,738 INFO L134 CoverageAnalysis]: Checked inductivity of 424 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 387 trivial. 0 not checked. [2022-07-14 00:26:46,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717978442] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:26:46,738 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 00:26:46,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 6] total 20 [2022-07-14 00:26:46,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015796873] [2022-07-14 00:26:46,738 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 00:26:46,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-07-14 00:26:46,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:26:46,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-07-14 00:26:46,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2022-07-14 00:26:46,740 INFO L87 Difference]: Start difference. First operand 15529 states and 20657 transitions. Second operand has 20 states, 20 states have (on average 12.15) internal successors, (243), 15 states have internal predecessors, (243), 2 states have call successors, (81), 6 states have call predecessors, (81), 5 states have return successors, (63), 3 states have call predecessors, (63), 2 states have call successors, (63) [2022-07-14 00:26:58,317 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:27:00,399 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:27:02,477 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:27:04,572 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:27:09,950 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:27:12,061 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:27:14,155 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:27:16,706 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:27:18,788 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:27:22,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:27:22,606 INFO L93 Difference]: Finished difference Result 37242 states and 51081 transitions. [2022-07-14 00:27:22,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-14 00:27:22,606 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 12.15) internal successors, (243), 15 states have internal predecessors, (243), 2 states have call successors, (81), 6 states have call predecessors, (81), 5 states have return successors, (63), 3 states have call predecessors, (63), 2 states have call successors, (63) Word has length 316 [2022-07-14 00:27:22,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:27:22,669 INFO L225 Difference]: With dead ends: 37242 [2022-07-14 00:27:22,670 INFO L226 Difference]: Without dead ends: 21743 [2022-07-14 00:27:22,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 734 GetRequests, 696 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=239, Invalid=1243, Unknown=0, NotChecked=0, Total=1482 [2022-07-14 00:27:22,709 INFO L413 NwaCegarLoop]: 2636 mSDtfsCounter, 3014 mSDsluCounter, 20725 mSDsCounter, 0 mSdLazyCounter, 15904 mSolverCounterSat, 2023 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3147 SdHoareTripleChecker+Valid, 23361 SdHoareTripleChecker+Invalid, 17936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2023 IncrementalHoareTripleChecker+Valid, 15904 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:27:22,710 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3147 Valid, 23361 Invalid, 17936 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2023 Valid, 15904 Invalid, 9 Unknown, 0 Unchecked, 34.1s Time] [2022-07-14 00:27:22,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21743 states. [2022-07-14 00:27:23,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21743 to 15573. [2022-07-14 00:27:23,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15573 states, 11415 states have (on average 1.2849759088918091) internal successors, (14668), 11657 states have internal predecessors, (14668), 2946 states have call successors, (2946), 1177 states have call predecessors, (2946), 1211 states have return successors, (3126), 2917 states have call predecessors, (3126), 2945 states have call successors, (3126) [2022-07-14 00:27:23,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15573 states to 15573 states and 20740 transitions. [2022-07-14 00:27:23,438 INFO L78 Accepts]: Start accepts. Automaton has 15573 states and 20740 transitions. Word has length 316 [2022-07-14 00:27:23,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:27:23,438 INFO L495 AbstractCegarLoop]: Abstraction has 15573 states and 20740 transitions. [2022-07-14 00:27:23,439 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 12.15) internal successors, (243), 15 states have internal predecessors, (243), 2 states have call successors, (81), 6 states have call predecessors, (81), 5 states have return successors, (63), 3 states have call predecessors, (63), 2 states have call successors, (63) [2022-07-14 00:27:23,439 INFO L276 IsEmpty]: Start isEmpty. Operand 15573 states and 20740 transitions. [2022-07-14 00:27:23,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2022-07-14 00:27:23,452 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:27:23,452 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:27:23,479 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-14 00:27:23,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-14 00:27:23,660 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:27:23,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:27:23,660 INFO L85 PathProgramCache]: Analyzing trace with hash -10081009, now seen corresponding path program 1 times [2022-07-14 00:27:23,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:27:23,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332897392] [2022-07-14 00:27:23,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:27:23,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:27:23,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:23,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:27:23,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:23,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:27:23,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:23,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:27:23,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:23,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:27:23,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:23,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:27:23,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:23,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:27:23,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:23,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:27:23,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:23,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:27:23,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:23,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:27:23,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:23,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-07-14 00:27:23,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:23,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-14 00:27:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:23,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2022-07-14 00:27:23,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:23,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2022-07-14 00:27:23,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:23,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-14 00:27:23,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:23,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2022-07-14 00:27:23,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:23,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-07-14 00:27:23,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:23,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-14 00:27:23,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:23,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-07-14 00:27:23,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:23,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2022-07-14 00:27:23,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:24,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:27:24,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:24,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2022-07-14 00:27:24,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:24,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-07-14 00:27:24,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:24,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-07-14 00:27:24,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:24,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2022-07-14 00:27:24,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:24,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:27:24,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:24,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2022-07-14 00:27:24,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:24,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:27:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:24,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2022-07-14 00:27:24,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:24,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-07-14 00:27:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:24,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2022-07-14 00:27:24,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:24,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:27:24,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:24,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:27:24,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:24,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:27:24,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:24,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-14 00:27:24,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:24,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2022-07-14 00:27:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:24,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-07-14 00:27:24,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:24,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 292 [2022-07-14 00:27:24,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:24,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:27:24,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:24,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2022-07-14 00:27:24,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:24,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 309 [2022-07-14 00:27:24,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:27:24,148 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2022-07-14 00:27:24,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:27:24,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332897392] [2022-07-14 00:27:24,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332897392] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:27:24,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:27:24,149 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 00:27:24,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464318274] [2022-07-14 00:27:24,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:27:24,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 00:27:24,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:27:24,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 00:27:24,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:27:24,151 INFO L87 Difference]: Start difference. First operand 15573 states and 20740 transitions. Second operand has 7 states, 7 states have (on average 24.285714285714285) internal successors, (170), 3 states have internal predecessors, (170), 2 states have call successors, (43), 6 states have call predecessors, (43), 1 states have return successors, (39), 2 states have call predecessors, (39), 2 states have call successors, (39) [2022-07-14 00:27:29,057 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:27:31,804 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:27:34,087 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:27:36,172 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []