./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.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 97d835cf94d1b164c94e454298c9901161d3451d2aec7fccfb9f6ea65c4976ed --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 18:28:27,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 18:28:27,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 18:28:27,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 18:28:27,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 18:28:27,245 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 18:28:27,247 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 18:28:27,253 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 18:28:27,255 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 18:28:27,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 18:28:27,260 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 18:28:27,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 18:28:27,261 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 18:28:27,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 18:28:27,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 18:28:27,269 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 18:28:27,269 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 18:28:27,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 18:28:27,274 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 18:28:27,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 18:28:27,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 18:28:27,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 18:28:27,280 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 18:28:27,281 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 18:28:27,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 18:28:27,285 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 18:28:27,286 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 18:28:27,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 18:28:27,287 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 18:28:27,288 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 18:28:27,288 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 18:28:27,289 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 18:28:27,290 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 18:28:27,291 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 18:28:27,292 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 18:28:27,292 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 18:28:27,292 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 18:28:27,292 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 18:28:27,293 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 18:28:27,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 18:28:27,293 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 18:28:27,294 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 18:28:27,319 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 18:28:27,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 18:28:27,321 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 18:28:27,321 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 18:28:27,322 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 18:28:27,322 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 18:28:27,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 18:28:27,323 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 18:28:27,323 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 18:28:27,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 18:28:27,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 18:28:27,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 18:28:27,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 18:28:27,324 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 18:28:27,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 18:28:27,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 18:28:27,325 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 18:28:27,325 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 18:28:27,325 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 18:28:27,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 18:28:27,325 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 18:28:27,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:28:27,326 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 18:28:27,326 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 18:28:27,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 18:28:27,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 18:28:27,327 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 18:28:27,327 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 18:28:27,327 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 18:28:27,327 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 18:28:27,327 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 18:28:27,328 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97d835cf94d1b164c94e454298c9901161d3451d2aec7fccfb9f6ea65c4976ed [2021-12-14 18:28:27,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 18:28:27,514 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 18:28:27,516 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 18:28:27,516 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 18:28:27,517 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 18:28:27,518 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i [2021-12-14 18:28:27,585 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06982cc0e/981ba298a1e5499097116564a7daafc3/FLAGa8d3c0314 [2021-12-14 18:28:28,175 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 18:28:28,176 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i [2021-12-14 18:28:28,216 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06982cc0e/981ba298a1e5499097116564a7daafc3/FLAGa8d3c0314 [2021-12-14 18:28:28,317 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06982cc0e/981ba298a1e5499097116564a7daafc3 [2021-12-14 18:28:28,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 18:28:28,319 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 18:28:28,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 18:28:28,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 18:28:28,322 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 18:28:28,323 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:28:28" (1/1) ... [2021-12-14 18:28:28,324 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c4f0f92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:28:28, skipping insertion in model container [2021-12-14 18:28:28,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:28:28" (1/1) ... [2021-12-14 18:28:28,328 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 18:28:28,394 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 18:28:30,033 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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327451,327464] [2021-12-14 18:28:30,035 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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327596,327609] [2021-12-14 18:28:30,047 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:28:30,101 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 18:28:30,333 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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327451,327464] [2021-12-14 18:28:30,334 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-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i[327596,327609] [2021-12-14 18:28:30,339 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:28:30,494 INFO L208 MainTranslator]: Completed translation [2021-12-14 18:28:30,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:28:30 WrapperNode [2021-12-14 18:28:30,495 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 18:28:30,496 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 18:28:30,496 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 18:28:30,496 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 18:28:30,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:28:30" (1/1) ... [2021-12-14 18:28:30,600 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:28:30" (1/1) ... [2021-12-14 18:28:30,729 INFO L137 Inliner]: procedures = 393, calls = 3228, calls flagged for inlining = 185, calls inlined = 165, statements flattened = 5478 [2021-12-14 18:28:30,730 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 18:28:30,730 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 18:28:30,730 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 18:28:30,730 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 18:28:30,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:28:30" (1/1) ... [2021-12-14 18:28:30,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:28:30" (1/1) ... [2021-12-14 18:28:30,768 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:28:30" (1/1) ... [2021-12-14 18:28:30,768 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:28:30" (1/1) ... [2021-12-14 18:28:30,920 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:28:30" (1/1) ... [2021-12-14 18:28:30,943 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:28:30" (1/1) ... [2021-12-14 18:28:30,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:28:30" (1/1) ... [2021-12-14 18:28:31,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 18:28:31,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 18:28:31,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 18:28:31,013 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 18:28:31,014 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:28:30" (1/1) ... [2021-12-14 18:28:31,019 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:28:31,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:28:31,053 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 18:28:31,055 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 18:28:31,081 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-14 18:28:31,081 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-14 18:28:31,081 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2021-12-14 18:28:31,082 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2021-12-14 18:28:31,082 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 18:28:31,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 18:28:31,082 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2021-12-14 18:28:31,082 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2021-12-14 18:28:31,082 INFO L130 BoogieDeclarations]: Found specification of procedure set_carrier [2021-12-14 18:28:31,082 INFO L138 BoogieDeclarations]: Found implementation of procedure set_carrier [2021-12-14 18:28:31,082 INFO L130 BoogieDeclarations]: Found specification of procedure read_mii_word [2021-12-14 18:28:31,083 INFO L138 BoogieDeclarations]: Found implementation of procedure read_mii_word [2021-12-14 18:28:31,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-14 18:28:31,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-14 18:28:31,083 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-14 18:28:31,083 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-14 18:28:31,083 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-14 18:28:31,083 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-14 18:28:31,083 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-14 18:28:31,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-14 18:28:31,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 18:28:31,084 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-12-14 18:28:31,084 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-12-14 18:28:31,084 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_dec_workqueue [2021-12-14 18:28:31,084 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_dec_workqueue [2021-12-14 18:28:31,084 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-14 18:28:31,084 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-14 18:28:31,084 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_disconnect [2021-12-14 18:28:31,085 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_disconnect [2021-12-14 18:28:31,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 18:28:31,085 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2021-12-14 18:28:31,085 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2021-12-14 18:28:31,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 18:28:31,085 INFO L130 BoogieDeclarations]: Found specification of procedure __mii_op [2021-12-14 18:28:31,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __mii_op [2021-12-14 18:28:31,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-14 18:28:31,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-14 18:28:31,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 18:28:31,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-12-14 18:28:31,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-12-14 18:28:31,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 18:28:31,086 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 18:28:31,086 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_set_wol [2021-12-14 18:28:31,086 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_set_wol [2021-12-14 18:28:31,087 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-14 18:28:31,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-14 18:28:31,087 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-12-14 18:28:31,087 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-12-14 18:28:31,088 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-14 18:28:31,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-14 18:28:31,088 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_set_multicast [2021-12-14 18:28:31,088 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_set_multicast [2021-12-14 18:28:31,088 INFO L130 BoogieDeclarations]: Found specification of procedure set_register [2021-12-14 18:28:31,089 INFO L138 BoogieDeclarations]: Found implementation of procedure set_register [2021-12-14 18:28:31,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 18:28:31,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-14 18:28:31,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-14 18:28:31,091 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 18:28:31,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-14 18:28:31,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-14 18:28:31,091 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 18:28:31,091 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-14 18:28:31,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-14 18:28:31,091 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-12-14 18:28:31,092 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-12-14 18:28:31,092 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-12-14 18:28:31,092 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-12-14 18:28:31,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-12-14 18:28:31,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-12-14 18:28:31,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-12-14 18:28:31,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-12-14 18:28:31,092 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-12-14 18:28:31,092 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-12-14 18:28:31,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-14 18:28:31,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-14 18:28:31,093 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-12-14 18:28:31,093 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-12-14 18:28:31,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 18:28:31,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 18:28:31,094 INFO L130 BoogieDeclarations]: Found specification of procedure read_bulk_callback [2021-12-14 18:28:31,094 INFO L138 BoogieDeclarations]: Found implementation of procedure read_bulk_callback [2021-12-14 18:28:31,094 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-12-14 18:28:31,094 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-12-14 18:28:31,094 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 18:28:31,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 18:28:31,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 18:28:31,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 18:28:31,095 INFO L130 BoogieDeclarations]: Found specification of procedure write_mii_word [2021-12-14 18:28:31,095 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mii_word [2021-12-14 18:28:31,095 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-12-14 18:28:31,095 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-12-14 18:28:31,096 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2021-12-14 18:28:31,096 INFO L138 BoogieDeclarations]: Found implementation of procedure strsep [2021-12-14 18:28:31,096 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-14 18:28:31,096 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-14 18:28:31,096 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_open [2021-12-14 18:28:31,096 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_open [2021-12-14 18:28:31,096 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-14 18:28:31,097 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-14 18:28:31,097 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-12-14 18:28:31,097 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-12-14 18:28:31,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 18:28:31,097 INFO L130 BoogieDeclarations]: Found specification of procedure read_eprom_word [2021-12-14 18:28:31,097 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eprom_word [2021-12-14 18:28:31,097 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-14 18:28:31,098 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-14 18:28:31,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 18:28:31,098 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_nway_reset [2021-12-14 18:28:31,098 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_nway_reset [2021-12-14 18:28:31,098 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_resume [2021-12-14 18:28:31,098 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_resume [2021-12-14 18:28:31,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 18:28:31,099 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_tx_timeout [2021-12-14 18:28:31,099 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_tx_timeout [2021-12-14 18:28:31,099 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-14 18:28:31,099 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-14 18:28:31,100 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-12-14 18:28:31,102 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-12-14 18:28:31,102 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urbs [2021-12-14 18:28:31,102 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urbs [2021-12-14 18:28:31,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-14 18:28:31,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-14 18:28:31,104 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-14 18:28:31,104 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-14 18:28:31,104 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-14 18:28:31,105 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-14 18:28:31,108 INFO L130 BoogieDeclarations]: Found specification of procedure intr_callback [2021-12-14 18:28:31,108 INFO L138 BoogieDeclarations]: Found implementation of procedure intr_callback [2021-12-14 18:28:31,108 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb_ip_align [2021-12-14 18:28:31,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb_ip_align [2021-12-14 18:28:31,108 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-12-14 18:28:31,108 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-12-14 18:28:31,108 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-14 18:28:31,109 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-14 18:28:31,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pegasus_exit_11_2 [2021-12-14 18:28:31,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pegasus_exit_11_2 [2021-12-14 18:28:31,109 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 18:28:31,109 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 18:28:31,109 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 18:28:31,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 18:28:31,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 18:28:31,109 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-14 18:28:31,109 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-14 18:28:31,110 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2021-12-14 18:28:31,110 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2021-12-14 18:28:31,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-14 18:28:31,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-14 18:28:31,110 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_close [2021-12-14 18:28:31,110 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_close [2021-12-14 18:28:31,110 INFO L130 BoogieDeclarations]: Found specification of procedure get_registers [2021-12-14 18:28:31,110 INFO L138 BoogieDeclarations]: Found implementation of procedure get_registers [2021-12-14 18:28:31,110 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-12-14 18:28:31,110 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_3_4 [2021-12-14 18:28:31,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_3_4 [2021-12-14 18:28:31,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 18:28:31,111 INFO L130 BoogieDeclarations]: Found specification of procedure set_registers [2021-12-14 18:28:31,111 INFO L138 BoogieDeclarations]: Found implementation of procedure set_registers [2021-12-14 18:28:31,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-14 18:28:31,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-14 18:28:31,642 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 18:28:31,645 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 18:28:32,002 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 18:28:34,979 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-14 18:28:35,202 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 18:28:35,221 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 18:28:35,222 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 18:28:35,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:28:35 BoogieIcfgContainer [2021-12-14 18:28:35,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 18:28:35,226 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 18:28:35,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 18:28:35,229 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 18:28:35,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:28:28" (1/3) ... [2021-12-14 18:28:35,229 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d69ff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:28:35, skipping insertion in model container [2021-12-14 18:28:35,229 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:28:30" (2/3) ... [2021-12-14 18:28:35,230 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38d69ff9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:28:35, skipping insertion in model container [2021-12-14 18:28:35,230 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:28:35" (3/3) ... [2021-12-14 18:28:35,231 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i [2021-12-14 18:28:35,238 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 18:28:35,238 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 18:28:35,274 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 18:28:35,278 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 18:28:35,279 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 18:28:35,310 INFO L276 IsEmpty]: Start isEmpty. Operand has 1406 states, 1013 states have (on average 1.297137216189536) internal successors, (1314), 1021 states have internal predecessors, (1314), 322 states have call successors, (322), 71 states have call predecessors, (322), 70 states have return successors, (316), 314 states have call predecessors, (316), 316 states have call successors, (316) [2021-12-14 18:28:35,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-12-14 18:28:35,324 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:28:35,324 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:28:35,325 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:28:35,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:28:35,328 INFO L85 PathProgramCache]: Analyzing trace with hash -347322488, now seen corresponding path program 1 times [2021-12-14 18:28:35,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:28:35,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548396188] [2021-12-14 18:28:35,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:28:35,335 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:28:35,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:35,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:28:35,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:35,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:36,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:28:36,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:36,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:36,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:36,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:28:36,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:36,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:36,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:36,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:28:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:36,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:36,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:36,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:28:36,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:36,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:36,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:36,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:28:36,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:36,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:36,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:36,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:28:36,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:36,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:36,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:36,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:28:36,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:36,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:36,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:36,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:28:36,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:36,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:36,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:28:36,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:36,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:36,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:36,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:28:36,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:36,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:36,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:36,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:28:36,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:36,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:36,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:36,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-14 18:28:36,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:36,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-14 18:28:36,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:36,284 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-12-14 18:28:36,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:28:36,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548396188] [2021-12-14 18:28:36,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548396188] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:28:36,285 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:28:36,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:28:36,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064392422] [2021-12-14 18:28:36,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:28:36,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:28:36,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:28:36,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:28:36,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:28:36,315 INFO L87 Difference]: Start difference. First operand has 1406 states, 1013 states have (on average 1.297137216189536) internal successors, (1314), 1021 states have internal predecessors, (1314), 322 states have call successors, (322), 71 states have call predecessors, (322), 70 states have return successors, (316), 314 states have call predecessors, (316), 316 states have call successors, (316) Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-14 18:28:38,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:28:38,261 INFO L93 Difference]: Finished difference Result 4160 states and 5850 transitions. [2021-12-14 18:28:38,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:28:38,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 165 [2021-12-14 18:28:38,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:28:38,293 INFO L225 Difference]: With dead ends: 4160 [2021-12-14 18:28:38,293 INFO L226 Difference]: Without dead ends: 2702 [2021-12-14 18:28:38,313 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:28:38,316 INFO L933 BasicCegarLoop]: 2158 mSDtfsCounter, 2144 mSDsluCounter, 2758 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 785 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2360 SdHoareTripleChecker+Valid, 4916 SdHoareTripleChecker+Invalid, 1669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 785 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-14 18:28:38,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2360 Valid, 4916 Invalid, 1669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [785 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-14 18:28:38,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2702 states. [2021-12-14 18:28:38,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2702 to 2646. [2021-12-14 18:28:38,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2646 states, 1938 states have (on average 1.2961816305469556) internal successors, (2512), 1952 states have internal predecessors, (2512), 573 states have call successors, (573), 134 states have call predecessors, (573), 134 states have return successors, (573), 568 states have call predecessors, (573), 573 states have call successors, (573) [2021-12-14 18:28:38,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2646 states to 2646 states and 3658 transitions. [2021-12-14 18:28:38,507 INFO L78 Accepts]: Start accepts. Automaton has 2646 states and 3658 transitions. Word has length 165 [2021-12-14 18:28:38,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:28:38,508 INFO L470 AbstractCegarLoop]: Abstraction has 2646 states and 3658 transitions. [2021-12-14 18:28:38,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-14 18:28:38,508 INFO L276 IsEmpty]: Start isEmpty. Operand 2646 states and 3658 transitions. [2021-12-14 18:28:38,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-12-14 18:28:38,513 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:28:38,513 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:28:38,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 18:28:38,514 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:28:38,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:28:38,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1754380236, now seen corresponding path program 1 times [2021-12-14 18:28:38,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:28:38,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568344601] [2021-12-14 18:28:38,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:28:38,515 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:28:38,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:38,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:28:38,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:38,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:38,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:38,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:28:38,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:38,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:38,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:38,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:28:38,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:38,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:38,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:28:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:38,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:38,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:38,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:28:38,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:38,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:38,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:38,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:28:38,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:38,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:38,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:38,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:28:38,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:38,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:38,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:38,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:28:38,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:38,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:38,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:38,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:28:38,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:38,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:38,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:38,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:28:38,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:38,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:38,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:38,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:28:38,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:38,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:38,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:38,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:28:38,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:38,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:38,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:38,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-14 18:28:38,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:38,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 18:28:38,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:38,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-14 18:28:38,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:38,849 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-12-14 18:28:38,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:28:38,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568344601] [2021-12-14 18:28:38,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568344601] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:28:38,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:28:38,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:28:38,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456808751] [2021-12-14 18:28:38,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:28:38,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:28:38,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:28:38,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:28:38,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:28:38,852 INFO L87 Difference]: Start difference. First operand 2646 states and 3658 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-14 18:28:40,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:28:40,346 INFO L93 Difference]: Finished difference Result 7458 states and 10348 transitions. [2021-12-14 18:28:40,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:28:40,346 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 180 [2021-12-14 18:28:40,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:28:40,365 INFO L225 Difference]: With dead ends: 7458 [2021-12-14 18:28:40,365 INFO L226 Difference]: Without dead ends: 4841 [2021-12-14 18:28:40,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:28:40,373 INFO L933 BasicCegarLoop]: 2045 mSDtfsCounter, 1763 mSDsluCounter, 2631 mSDsCounter, 0 mSdLazyCounter, 843 mSolverCounterSat, 650 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1930 SdHoareTripleChecker+Valid, 4676 SdHoareTripleChecker+Invalid, 1493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 650 IncrementalHoareTripleChecker+Valid, 843 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-14 18:28:40,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1930 Valid, 4676 Invalid, 1493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [650 Valid, 843 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-14 18:28:40,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4841 states. [2021-12-14 18:28:40,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4841 to 4731. [2021-12-14 18:28:40,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4731 states, 3436 states have (on average 1.2974388824214202) internal successors, (4458), 3464 states have internal predecessors, (4458), 1038 states have call successors, (1038), 256 states have call predecessors, (1038), 256 states have return successors, (1044), 1024 states have call predecessors, (1044), 1038 states have call successors, (1044) [2021-12-14 18:28:40,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4731 states to 4731 states and 6540 transitions. [2021-12-14 18:28:40,493 INFO L78 Accepts]: Start accepts. Automaton has 4731 states and 6540 transitions. Word has length 180 [2021-12-14 18:28:40,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:28:40,493 INFO L470 AbstractCegarLoop]: Abstraction has 4731 states and 6540 transitions. [2021-12-14 18:28:40,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (18), 3 states have call predecessors, (18), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-14 18:28:40,494 INFO L276 IsEmpty]: Start isEmpty. Operand 4731 states and 6540 transitions. [2021-12-14 18:28:40,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-12-14 18:28:40,496 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:28:40,496 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:28:40,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 18:28:40,497 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:28:40,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:28:40,497 INFO L85 PathProgramCache]: Analyzing trace with hash 450289277, now seen corresponding path program 1 times [2021-12-14 18:28:40,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:28:40,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722362292] [2021-12-14 18:28:40,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:28:40,498 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:28:40,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:40,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:28:40,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:40,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:40,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:40,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:28:40,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:40,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:40,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:40,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:28:40,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:40,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:40,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:40,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:28:40,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:40,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:40,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:40,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:28:40,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:40,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:40,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:40,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:28:40,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:40,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:40,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:40,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:28:40,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:40,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:40,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:40,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:28:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:40,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:40,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:40,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:28:40,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:40,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:40,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:40,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:28:40,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:40,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:40,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:40,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:28:40,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:40,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:40,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:40,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:28:40,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:40,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:40,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:40,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-14 18:28:40,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:40,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-12-14 18:28:40,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:40,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-14 18:28:40,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:40,813 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-12-14 18:28:40,813 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:28:40,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722362292] [2021-12-14 18:28:40,813 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722362292] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:28:40,813 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:28:40,813 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:28:40,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056890573] [2021-12-14 18:28:40,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:28:40,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:28:40,814 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:28:40,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:28:40,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:28:40,815 INFO L87 Difference]: Start difference. First operand 4731 states and 6540 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-14 18:28:42,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:28:42,218 INFO L93 Difference]: Finished difference Result 11159 states and 15411 transitions. [2021-12-14 18:28:42,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:28:42,218 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 182 [2021-12-14 18:28:42,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:28:42,248 INFO L225 Difference]: With dead ends: 11159 [2021-12-14 18:28:42,248 INFO L226 Difference]: Without dead ends: 6457 [2021-12-14 18:28:42,268 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:28:42,269 INFO L933 BasicCegarLoop]: 2304 mSDtfsCounter, 1049 mSDsluCounter, 2810 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 411 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1155 SdHoareTripleChecker+Valid, 5114 SdHoareTripleChecker+Invalid, 1170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 411 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-14 18:28:42,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1155 Valid, 5114 Invalid, 1170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [411 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-14 18:28:42,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6457 states. [2021-12-14 18:28:42,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6457 to 6311. [2021-12-14 18:28:42,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6311 states, 4650 states have (on average 1.2939784946236559) internal successors, (6017), 4696 states have internal predecessors, (6017), 1307 states have call successors, (1307), 353 states have call predecessors, (1307), 353 states have return successors, (1313), 1279 states have call predecessors, (1313), 1307 states have call successors, (1313) [2021-12-14 18:28:42,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6311 states to 6311 states and 8637 transitions. [2021-12-14 18:28:42,476 INFO L78 Accepts]: Start accepts. Automaton has 6311 states and 8637 transitions. Word has length 182 [2021-12-14 18:28:42,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:28:42,477 INFO L470 AbstractCegarLoop]: Abstraction has 6311 states and 8637 transitions. [2021-12-14 18:28:42,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2021-12-14 18:28:42,477 INFO L276 IsEmpty]: Start isEmpty. Operand 6311 states and 8637 transitions. [2021-12-14 18:28:42,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-12-14 18:28:42,479 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:28:42,480 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 12, 12, 12, 12, 12, 12, 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] [2021-12-14 18:28:42,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 18:28:42,480 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:28:42,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:28:42,481 INFO L85 PathProgramCache]: Analyzing trace with hash -885392, now seen corresponding path program 1 times [2021-12-14 18:28:42,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:28:42,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907413411] [2021-12-14 18:28:42,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:28:42,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:28:42,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:42,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:28:42,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:42,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:42,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:42,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:28:42,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:42,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:42,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:42,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:28:42,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:42,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:42,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:42,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:28:42,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:42,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:42,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:28:42,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:42,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:42,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:42,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:28:42,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:42,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:42,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:42,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:28:42,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:42,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:42,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:28:42,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:42,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:42,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:42,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:28:42,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:42,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:42,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:42,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:28:42,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:42,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:42,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:42,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:28:42,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:42,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:42,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:42,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:28:42,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:42,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:42,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:42,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-14 18:28:42,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:42,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-14 18:28:42,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:42,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-12-14 18:28:42,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:42,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-14 18:28:42,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:42,775 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2021-12-14 18:28:42,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:28:42,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907413411] [2021-12-14 18:28:42,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907413411] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:28:42,776 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:28:42,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:28:42,776 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588653399] [2021-12-14 18:28:42,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:28:42,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:28:42,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:28:42,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:28:42,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:28:42,777 INFO L87 Difference]: Start difference. First operand 6311 states and 8637 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-14 18:28:44,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:28:44,401 INFO L93 Difference]: Finished difference Result 19075 states and 26173 transitions. [2021-12-14 18:28:44,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:28:44,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 188 [2021-12-14 18:28:44,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:28:44,465 INFO L225 Difference]: With dead ends: 19075 [2021-12-14 18:28:44,465 INFO L226 Difference]: Without dead ends: 12793 [2021-12-14 18:28:44,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:28:44,489 INFO L933 BasicCegarLoop]: 2147 mSDtfsCounter, 2108 mSDsluCounter, 2747 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 695 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2308 SdHoareTripleChecker+Valid, 4894 SdHoareTripleChecker+Invalid, 1521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 695 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-14 18:28:44,489 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2308 Valid, 4894 Invalid, 1521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [695 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-14 18:28:44,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12793 states. [2021-12-14 18:28:44,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12793 to 12503. [2021-12-14 18:28:44,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12503 states, 9210 states have (on average 1.294245385450597) internal successors, (11920), 9310 states have internal predecessors, (11920), 2586 states have call successors, (2586), 706 states have call predecessors, (2586), 706 states have return successors, (2598), 2522 states have call predecessors, (2598), 2586 states have call successors, (2598) [2021-12-14 18:28:44,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12503 states to 12503 states and 17104 transitions. [2021-12-14 18:28:44,849 INFO L78 Accepts]: Start accepts. Automaton has 12503 states and 17104 transitions. Word has length 188 [2021-12-14 18:28:44,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:28:44,849 INFO L470 AbstractCegarLoop]: Abstraction has 12503 states and 17104 transitions. [2021-12-14 18:28:44,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2021-12-14 18:28:44,850 INFO L276 IsEmpty]: Start isEmpty. Operand 12503 states and 17104 transitions. [2021-12-14 18:28:44,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-12-14 18:28:44,855 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:28:44,855 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 12, 12, 12, 12, 12, 12, 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] [2021-12-14 18:28:44,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 18:28:44,856 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:28:44,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:28:44,856 INFO L85 PathProgramCache]: Analyzing trace with hash 362972016, now seen corresponding path program 1 times [2021-12-14 18:28:44,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:28:44,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881317237] [2021-12-14 18:28:44,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:28:44,857 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:28:44,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:45,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:28:45,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:45,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:45,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:45,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:28:45,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:45,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:45,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:45,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:28:45,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:45,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:45,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:45,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:28:45,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:45,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:45,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:45,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:28:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:45,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:45,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:28:45,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:45,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:45,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:28:45,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:45,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:45,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:45,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:28:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:45,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:45,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:45,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:28:45,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:45,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:45,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:45,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:28:45,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:45,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:45,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:28:45,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:45,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:45,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:45,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:28:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:45,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:45,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:45,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-14 18:28:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:45,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 18:28:45,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:45,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-14 18:28:45,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:45,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-14 18:28:45,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:45,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-12-14 18:28:45,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:45,241 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2021-12-14 18:28:45,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:28:45,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881317237] [2021-12-14 18:28:45,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881317237] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:28:45,242 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:28:45,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:28:45,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615223118] [2021-12-14 18:28:45,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:28:45,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:28:45,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:28:45,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:28:45,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:28:45,244 INFO L87 Difference]: Start difference. First operand 12503 states and 17104 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-14 18:28:47,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:28:47,187 INFO L93 Difference]: Finished difference Result 37883 states and 51938 transitions. [2021-12-14 18:28:47,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:28:47,188 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 205 [2021-12-14 18:28:47,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:28:47,291 INFO L225 Difference]: With dead ends: 37883 [2021-12-14 18:28:47,292 INFO L226 Difference]: Without dead ends: 25409 [2021-12-14 18:28:47,333 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:28:47,334 INFO L933 BasicCegarLoop]: 3349 mSDtfsCounter, 1919 mSDsluCounter, 3486 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 454 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2119 SdHoareTripleChecker+Valid, 6835 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 454 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-14 18:28:47,335 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2119 Valid, 6835 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [454 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-14 18:28:47,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25409 states. [2021-12-14 18:28:47,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25409 to 24847. [2021-12-14 18:28:47,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24847 states, 18306 states have (on average 1.2934556975854912) internal successors, (23678), 18506 states have internal predecessors, (23678), 5128 states have call successors, (5128), 1412 states have call predecessors, (5128), 1412 states have return successors, (5152), 5000 states have call predecessors, (5152), 5128 states have call successors, (5152) [2021-12-14 18:28:48,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24847 states to 24847 states and 33958 transitions. [2021-12-14 18:28:48,021 INFO L78 Accepts]: Start accepts. Automaton has 24847 states and 33958 transitions. Word has length 205 [2021-12-14 18:28:48,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:28:48,022 INFO L470 AbstractCegarLoop]: Abstraction has 24847 states and 33958 transitions. [2021-12-14 18:28:48,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 3 states have internal predecessors, (73), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-14 18:28:48,022 INFO L276 IsEmpty]: Start isEmpty. Operand 24847 states and 33958 transitions. [2021-12-14 18:28:48,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-12-14 18:28:48,024 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:28:48,024 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 12, 12, 12, 12, 12, 12, 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] [2021-12-14 18:28:48,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-14 18:28:48,025 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:28:48,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:28:48,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1033994697, now seen corresponding path program 1 times [2021-12-14 18:28:48,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:28:48,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516788617] [2021-12-14 18:28:48,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:28:48,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:28:48,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:48,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:28:48,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:48,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:48,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:48,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:28:48,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:48,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:48,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:48,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:28:48,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:48,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:48,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:28:48,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:48,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:48,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:48,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:28:48,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:48,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:48,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:48,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:28:48,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:48,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:48,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:48,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:28:48,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:48,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:48,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:28:48,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:48,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:48,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:48,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:28:48,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:48,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:48,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:48,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:28:48,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:48,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:48,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:28:48,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:48,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:48,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:48,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:28:48,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:48,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:48,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:48,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-14 18:28:48,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:48,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-14 18:28:48,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:48,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-14 18:28:48,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:48,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-12-14 18:28:48,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:48,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-14 18:28:48,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:48,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-14 18:28:48,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:48,416 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 720 trivial. 0 not checked. [2021-12-14 18:28:48,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:28:48,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516788617] [2021-12-14 18:28:48,417 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516788617] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:28:48,417 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:28:48,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:28:48,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997510968] [2021-12-14 18:28:48,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:28:48,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:28:48,418 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:28:48,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:28:48,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:28:48,419 INFO L87 Difference]: Start difference. First operand 24847 states and 33958 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-14 18:28:50,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:28:50,367 INFO L93 Difference]: Finished difference Result 51011 states and 69531 transitions. [2021-12-14 18:28:50,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:28:50,367 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 206 [2021-12-14 18:28:50,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:28:50,474 INFO L225 Difference]: With dead ends: 51011 [2021-12-14 18:28:50,474 INFO L226 Difference]: Without dead ends: 26193 [2021-12-14 18:28:50,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:28:50,538 INFO L933 BasicCegarLoop]: 1845 mSDtfsCounter, 409 mSDsluCounter, 2555 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 4400 SdHoareTripleChecker+Invalid, 925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 305 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-14 18:28:50,538 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [454 Valid, 4400 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-14 18:28:50,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26193 states. [2021-12-14 18:28:51,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26193 to 25593. [2021-12-14 18:28:51,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25593 states, 18787 states have (on average 1.2876989407569064) internal successors, (24192), 18987 states have internal predecessors, (24192), 5257 states have call successors, (5257), 1548 states have call predecessors, (5257), 1548 states have return successors, (5281), 5129 states have call predecessors, (5281), 5257 states have call successors, (5281) [2021-12-14 18:28:51,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25593 states to 25593 states and 34730 transitions. [2021-12-14 18:28:51,361 INFO L78 Accepts]: Start accepts. Automaton has 25593 states and 34730 transitions. Word has length 206 [2021-12-14 18:28:51,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:28:51,361 INFO L470 AbstractCegarLoop]: Abstraction has 25593 states and 34730 transitions. [2021-12-14 18:28:51,362 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-12-14 18:28:51,362 INFO L276 IsEmpty]: Start isEmpty. Operand 25593 states and 34730 transitions. [2021-12-14 18:28:51,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-12-14 18:28:51,367 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:28:51,367 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 12, 12, 12, 12, 12, 12, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:28:51,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 18:28:51,368 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:28:51,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:28:51,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1219407040, now seen corresponding path program 1 times [2021-12-14 18:28:51,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:28:51,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765855551] [2021-12-14 18:28:51,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:28:51,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:28:51,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:28:51,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:51,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:28:51,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:51,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:28:51,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:51,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:28:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:51,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:28:51,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:51,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:28:51,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:51,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:28:51,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:51,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:28:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:51,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:28:51,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:51,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:28:51,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:51,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:28:51,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:51,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:28:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:51,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-14 18:28:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 18:28:51,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-14 18:28:51,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-14 18:28:51,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-14 18:28:51,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:51,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-14 18:28:51,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-14 18:28:51,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-14 18:28:51,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-14 18:28:51,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-14 18:28:51,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-14 18:28:51,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-12-14 18:28:51,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:51,716 INFO L134 CoverageAnalysis]: Checked inductivity of 921 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-12-14 18:28:51,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:28:51,717 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765855551] [2021-12-14 18:28:51,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765855551] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:28:51,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:28:51,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:28:51,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552456764] [2021-12-14 18:28:51,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:28:51,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:28:51,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:28:51,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:28:51,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:28:51,718 INFO L87 Difference]: Start difference. First operand 25593 states and 34730 transitions. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-14 18:28:53,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:28:53,927 INFO L93 Difference]: Finished difference Result 74701 states and 101664 transitions. [2021-12-14 18:28:53,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:28:53,928 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 265 [2021-12-14 18:28:53,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:28:54,091 INFO L225 Difference]: With dead ends: 74701 [2021-12-14 18:28:54,092 INFO L226 Difference]: Without dead ends: 49187 [2021-12-14 18:28:54,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:28:54,150 INFO L933 BasicCegarLoop]: 3500 mSDtfsCounter, 1792 mSDsluCounter, 3574 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 419 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1980 SdHoareTripleChecker+Valid, 7074 SdHoareTripleChecker+Invalid, 1325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 419 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-14 18:28:54,150 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1980 Valid, 7074 Invalid, 1325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [419 Valid, 906 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-14 18:28:54,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49187 states. [2021-12-14 18:28:55,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49187 to 48145. [2021-12-14 18:28:55,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48145 states, 35507 states have (on average 1.2907877319965078) internal successors, (45832), 35859 states have internal predecessors, (45832), 9765 states have call successors, (9765), 2872 states have call predecessors, (9765), 2872 states have return successors, (9813), 9557 states have call predecessors, (9813), 9765 states have call successors, (9813) [2021-12-14 18:28:55,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48145 states to 48145 states and 65410 transitions. [2021-12-14 18:28:55,524 INFO L78 Accepts]: Start accepts. Automaton has 48145 states and 65410 transitions. Word has length 265 [2021-12-14 18:28:55,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:28:55,525 INFO L470 AbstractCegarLoop]: Abstraction has 48145 states and 65410 transitions. [2021-12-14 18:28:55,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-14 18:28:55,525 INFO L276 IsEmpty]: Start isEmpty. Operand 48145 states and 65410 transitions. [2021-12-14 18:28:55,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2021-12-14 18:28:55,531 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:28:55,531 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 12, 12, 12, 12, 12, 12, 5, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:28:55,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-14 18:28:55,532 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:28:55,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:28:55,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1696517317, now seen corresponding path program 1 times [2021-12-14 18:28:55,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:28:55,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644903691] [2021-12-14 18:28:55,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:28:55,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:28:55,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:55,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:28:55,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:55,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:55,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:55,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:28:55,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:55,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:55,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:55,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:28:55,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:55,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:55,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:55,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:28:55,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:56,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:56,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:56,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:28:56,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:56,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:56,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:56,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:28:56,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:56,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:56,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:56,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:28:56,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:56,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:56,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:56,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:28:56,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:56,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:56,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:56,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:28:56,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:56,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:56,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:56,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:28:56,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:56,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:56,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:56,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:28:56,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:56,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:56,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:56,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:28:56,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:56,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:56,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:56,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-14 18:28:56,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:56,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 18:28:56,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:56,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-14 18:28:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:56,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-14 18:28:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:56,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-14 18:28:56,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:56,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:28:56,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:56,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-14 18:28:56,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:56,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-14 18:28:56,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:56,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-14 18:28:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:56,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-14 18:28:56,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:56,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-12-14 18:28:56,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:56,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-14 18:28:56,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:56,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-14 18:28:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:28:56,336 INFO L134 CoverageAnalysis]: Checked inductivity of 921 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-12-14 18:28:56,337 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:28:56,337 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644903691] [2021-12-14 18:28:56,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644903691] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:28:56,337 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:28:56,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:28:56,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548405115] [2021-12-14 18:28:56,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:28:56,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:28:56,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:28:56,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:28:56,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:28:56,338 INFO L87 Difference]: Start difference. First operand 48145 states and 65410 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-14 18:28:59,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:28:59,023 INFO L93 Difference]: Finished difference Result 120273 states and 163697 transitions. [2021-12-14 18:28:59,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:28:59,024 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 267 [2021-12-14 18:28:59,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:28:59,307 INFO L225 Difference]: With dead ends: 120273 [2021-12-14 18:28:59,307 INFO L226 Difference]: Without dead ends: 71833 [2021-12-14 18:28:59,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:28:59,425 INFO L933 BasicCegarLoop]: 3504 mSDtfsCounter, 1789 mSDsluCounter, 3581 mSDsCounter, 0 mSdLazyCounter, 907 mSolverCounterSat, 417 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1975 SdHoareTripleChecker+Valid, 7085 SdHoareTripleChecker+Invalid, 1324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 417 IncrementalHoareTripleChecker+Valid, 907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-14 18:28:59,425 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1975 Valid, 7085 Invalid, 1324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [417 Valid, 907 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-14 18:28:59,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71833 states. [2021-12-14 18:29:01,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71833 to 70351. [2021-12-14 18:29:01,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70351 states, 51925 states have (on average 1.2924217621569571) internal successors, (67109), 52425 states have internal predecessors, (67109), 14237 states have call successors, (14237), 4188 states have call predecessors, (14237), 4188 states have return successors, (14305), 13952 states have call predecessors, (14305), 14236 states have call successors, (14305) [2021-12-14 18:29:01,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70351 states to 70351 states and 95651 transitions. [2021-12-14 18:29:01,620 INFO L78 Accepts]: Start accepts. Automaton has 70351 states and 95651 transitions. Word has length 267 [2021-12-14 18:29:01,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:29:01,621 INFO L470 AbstractCegarLoop]: Abstraction has 70351 states and 95651 transitions. [2021-12-14 18:29:01,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-14 18:29:01,621 INFO L276 IsEmpty]: Start isEmpty. Operand 70351 states and 95651 transitions. [2021-12-14 18:29:01,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-12-14 18:29:01,626 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:29:01,626 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 12, 12, 12, 12, 12, 12, 5, 5, 5, 3, 3, 3, 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] [2021-12-14 18:29:01,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-14 18:29:01,627 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:29:01,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:29:01,627 INFO L85 PathProgramCache]: Analyzing trace with hash 170478624, now seen corresponding path program 1 times [2021-12-14 18:29:01,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:29:01,627 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808121172] [2021-12-14 18:29:01,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:29:01,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:29:02,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:29:02,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:02,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:29:02,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:29:02,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:02,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:29:02,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:02,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:29:02,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:02,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:29:02,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:02,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:29:02,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:29:02,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:29:02,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:02,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:29:02,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:02,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:29:02,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:02,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:29:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:02,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-14 18:29:02,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 18:29:02,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-14 18:29:02,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-14 18:29:02,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-14 18:29:02,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-14 18:29:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-14 18:29:02,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-14 18:29:02,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-12-14 18:29:02,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-12-14 18:29:02,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-12-14 18:29:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-14 18:29:02,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:02,267 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 847 trivial. 0 not checked. [2021-12-14 18:29:02,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:29:02,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808121172] [2021-12-14 18:29:02,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808121172] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:29:02,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:29:02,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:29:02,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241750160] [2021-12-14 18:29:02,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:29:02,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:29:02,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:29:02,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:29:02,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:29:02,269 INFO L87 Difference]: Start difference. First operand 70351 states and 95651 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-14 18:29:05,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:29:05,436 INFO L93 Difference]: Finished difference Result 169491 states and 229663 transitions. [2021-12-14 18:29:05,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:29:05,437 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 272 [2021-12-14 18:29:05,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:29:05,873 INFO L225 Difference]: With dead ends: 169491 [2021-12-14 18:29:05,873 INFO L226 Difference]: Without dead ends: 99219 [2021-12-14 18:29:06,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:29:06,049 INFO L933 BasicCegarLoop]: 2758 mSDtfsCounter, 1529 mSDsluCounter, 2770 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1690 SdHoareTripleChecker+Valid, 5528 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-14 18:29:06,050 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1690 Valid, 5528 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 808 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-14 18:29:06,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99219 states. [2021-12-14 18:29:08,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99219 to 97274. [2021-12-14 18:29:08,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97274 states, 71906 states have (on average 1.2880149083525714) internal successors, (92616), 72573 states have internal predecessors, (92616), 19107 states have call successors, (19107), 6260 states have call predecessors, (19107), 6260 states have return successors, (19175), 18703 states have call predecessors, (19175), 19106 states have call successors, (19175) [2021-12-14 18:29:08,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97274 states to 97274 states and 130898 transitions. [2021-12-14 18:29:08,856 INFO L78 Accepts]: Start accepts. Automaton has 97274 states and 130898 transitions. Word has length 272 [2021-12-14 18:29:08,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:29:08,858 INFO L470 AbstractCegarLoop]: Abstraction has 97274 states and 130898 transitions. [2021-12-14 18:29:08,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 3 states have internal predecessors, (105), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-14 18:29:08,858 INFO L276 IsEmpty]: Start isEmpty. Operand 97274 states and 130898 transitions. [2021-12-14 18:29:08,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2021-12-14 18:29:08,863 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:29:08,864 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 12, 12, 12, 12, 12, 12, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 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] [2021-12-14 18:29:08,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-14 18:29:08,864 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:29:08,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:29:08,864 INFO L85 PathProgramCache]: Analyzing trace with hash -2144596284, now seen corresponding path program 1 times [2021-12-14 18:29:08,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:29:08,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806421456] [2021-12-14 18:29:08,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:29:08,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:29:08,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:29:09,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:29:09,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:09,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:29:09,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:09,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:29:09,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:09,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:29:09,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:09,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:29:09,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:09,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:29:09,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:09,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:29:09,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:09,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:29:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:09,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:29:09,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:09,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:29:09,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:09,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:29:09,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:09,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-14 18:29:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 18:29:09,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-14 18:29:09,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-14 18:29:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-14 18:29:09,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:09,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-14 18:29:09,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-14 18:29:09,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-14 18:29:09,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-14 18:29:09,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-14 18:29:09,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-14 18:29:09,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-14 18:29:09,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-14 18:29:09,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-14 18:29:09,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-12-14 18:29:09,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:09,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1077 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 1040 trivial. 0 not checked. [2021-12-14 18:29:09,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:29:09,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806421456] [2021-12-14 18:29:09,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806421456] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:29:09,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:29:09,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:29:09,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359217571] [2021-12-14 18:29:09,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:29:09,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:29:09,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:29:09,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:29:09,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:29:09,446 INFO L87 Difference]: Start difference. First operand 97274 states and 130898 transitions. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-12-14 18:29:13,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:29:13,263 INFO L93 Difference]: Finished difference Result 227851 states and 306843 transitions. [2021-12-14 18:29:13,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:29:13,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 291 [2021-12-14 18:29:13,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:29:13,872 INFO L225 Difference]: With dead ends: 227851 [2021-12-14 18:29:13,872 INFO L226 Difference]: Without dead ends: 130317 [2021-12-14 18:29:14,348 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:29:14,350 INFO L933 BasicCegarLoop]: 3501 mSDtfsCounter, 1787 mSDsluCounter, 3575 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1973 SdHoareTripleChecker+Valid, 7076 SdHoareTripleChecker+Invalid, 1313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 414 IncrementalHoareTripleChecker+Valid, 899 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2021-12-14 18:29:14,350 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1973 Valid, 7076 Invalid, 1313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [414 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2021-12-14 18:29:14,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130317 states. [2021-12-14 18:29:17,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130317 to 97274. [2021-12-14 18:29:17,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97274 states, 71906 states have (on average 1.2880010013072622) internal successors, (92615), 72573 states have internal predecessors, (92615), 19107 states have call successors, (19107), 6260 states have call predecessors, (19107), 6260 states have return successors, (19175), 18703 states have call predecessors, (19175), 19106 states have call successors, (19175) [2021-12-14 18:29:17,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97274 states to 97274 states and 130897 transitions. [2021-12-14 18:29:17,407 INFO L78 Accepts]: Start accepts. Automaton has 97274 states and 130897 transitions. Word has length 291 [2021-12-14 18:29:17,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:29:17,408 INFO L470 AbstractCegarLoop]: Abstraction has 97274 states and 130897 transitions. [2021-12-14 18:29:17,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 3 states have internal predecessors, (102), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2021-12-14 18:29:17,408 INFO L276 IsEmpty]: Start isEmpty. Operand 97274 states and 130897 transitions. [2021-12-14 18:29:17,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2021-12-14 18:29:17,413 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:29:17,413 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 12, 12, 12, 12, 12, 12, 6, 6, 6, 5, 5, 5, 3, 3, 3, 3, 3, 3, 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] [2021-12-14 18:29:17,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-14 18:29:17,413 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:29:17,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:29:17,414 INFO L85 PathProgramCache]: Analyzing trace with hash 227255181, now seen corresponding path program 1 times [2021-12-14 18:29:17,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:29:17,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276725967] [2021-12-14 18:29:17,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:29:17,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:29:17,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:17,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:29:17,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:17,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:17,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:17,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:29:17,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:17,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:17,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:17,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:29:17,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:17,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:17,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:17,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:29:17,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:17,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:17,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:17,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:29:17,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:17,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:17,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:17,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:29:17,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:17,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:17,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:17,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:29:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:17,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:17,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:17,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:29:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:17,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:17,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:17,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:29:17,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:17,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:17,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:17,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:29:17,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:17,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:17,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:17,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:29:17,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:17,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:17,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:17,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:29:17,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:17,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:17,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:17,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-14 18:29:17,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:17,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 18:29:17,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:17,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-14 18:29:17,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:18,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-14 18:29:18,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:18,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-14 18:29:18,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:18,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:29:18,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:18,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-14 18:29:18,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:18,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-14 18:29:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:18,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-12-14 18:29:18,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:18,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-12-14 18:29:18,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:18,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-14 18:29:18,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:18,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-14 18:29:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:18,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-14 18:29:18,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:18,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-12-14 18:29:18,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:18,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-14 18:29:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:18,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-14 18:29:18,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:29:18,093 INFO L134 CoverageAnalysis]: Checked inductivity of 1077 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1077 trivial. 0 not checked. [2021-12-14 18:29:18,093 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:29:18,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276725967] [2021-12-14 18:29:18,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276725967] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:29:18,094 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:29:18,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:29:18,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364881097] [2021-12-14 18:29:18,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:29:18,094 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:29:18,094 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:29:18,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:29:18,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:29:18,095 INFO L87 Difference]: Start difference. First operand 97274 states and 130897 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 2 states have call successors, (26), 3 states have call predecessors, (26), 2 states have return successors, (25), 3 states have call predecessors, (25), 2 states have call successors, (25)