./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 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-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 0.2.1-dev-0f8a17c [2021-11-17 06:45:16,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 06:45:16,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 06:45:17,002 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 06:45:17,005 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 06:45:17,009 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 06:45:17,011 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 06:45:17,014 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 06:45:17,015 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 06:45:17,019 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 06:45:17,020 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 06:45:17,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 06:45:17,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 06:45:17,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 06:45:17,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 06:45:17,026 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 06:45:17,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 06:45:17,027 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 06:45:17,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 06:45:17,036 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 06:45:17,037 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 06:45:17,038 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 06:45:17,039 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 06:45:17,040 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 06:45:17,042 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 06:45:17,042 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 06:45:17,043 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 06:45:17,044 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 06:45:17,044 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 06:45:17,045 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 06:45:17,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 06:45:17,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 06:45:17,047 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 06:45:17,048 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 06:45:17,049 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 06:45:17,049 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 06:45:17,050 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 06:45:17,050 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 06:45:17,051 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 06:45:17,051 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 06:45:17,052 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 06:45:17,053 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 06:45:17,082 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 06:45:17,082 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 06:45:17,082 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 06:45:17,083 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 06:45:17,083 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 06:45:17,084 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 06:45:17,084 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 06:45:17,084 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 06:45:17,084 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 06:45:17,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 06:45:17,085 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 06:45:17,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 06:45:17,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 06:45:17,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 06:45:17,086 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 06:45:17,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 06:45:17,087 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 06:45:17,087 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 06:45:17,087 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 06:45:17,087 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 06:45:17,087 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 06:45:17,088 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 06:45:17,088 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 06:45:17,088 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 06:45:17,088 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 06:45:17,088 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 06:45:17,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 06:45:17,089 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 06:45:17,089 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 06:45:17,089 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 06:45:17,090 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 06:45:17,090 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97d835cf94d1b164c94e454298c9901161d3451d2aec7fccfb9f6ea65c4976ed [2021-11-17 06:45:17,316 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 06:45:17,342 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 06:45:17,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 06:45:17,346 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 06:45:17,347 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 06:45:17,348 INFO L432 ainManager$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 [2021-11-17 06:45:17,415 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25ed7e753/f512403ab14542e8a25f3da77167c52e/FLAG040348f2b [2021-11-17 06:45:18,101 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 06:45:18,102 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 [2021-11-17 06:45:18,143 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25ed7e753/f512403ab14542e8a25f3da77167c52e/FLAG040348f2b [2021-11-17 06:45:18,182 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/25ed7e753/f512403ab14542e8a25f3da77167c52e [2021-11-17 06:45:18,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 06:45:18,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 06:45:18,188 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 06:45:18,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 06:45:18,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 06:45:18,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 06:45:18" (1/1) ... [2021-11-17 06:45:18,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bbf11c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:45:18, skipping insertion in model container [2021-11-17 06:45:18,194 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 06:45:18" (1/1) ... [2021-11-17 06:45:18,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 06:45:18,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 06:45:20,006 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] [2021-11-17 06:45:20,009 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] [2021-11-17 06:45:20,022 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 06:45:20,063 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 06:45:20,351 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] [2021-11-17 06:45:20,352 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] [2021-11-17 06:45:20,357 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 06:45:20,532 INFO L208 MainTranslator]: Completed translation [2021-11-17 06:45:20,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:45:20 WrapperNode [2021-11-17 06:45:20,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 06:45:20,534 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 06:45:20,534 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 06:45:20,535 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 06:45:20,539 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:45:20" (1/1) ... [2021-11-17 06:45:20,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:45:20" (1/1) ... [2021-11-17 06:45:20,828 INFO L137 Inliner]: procedures = 393, calls = 3228, calls flagged for inlining = 185, calls inlined = 165, statements flattened = 5472 [2021-11-17 06:45:20,829 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 06:45:20,830 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 06:45:20,830 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 06:45:20,831 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 06:45:20,839 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:45:20" (1/1) ... [2021-11-17 06:45:20,839 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:45:20" (1/1) ... [2021-11-17 06:45:20,886 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:45:20" (1/1) ... [2021-11-17 06:45:20,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:45:20" (1/1) ... [2021-11-17 06:45:20,999 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:45:20" (1/1) ... [2021-11-17 06:45:21,023 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:45:20" (1/1) ... [2021-11-17 06:45:21,056 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:45:20" (1/1) ... [2021-11-17 06:45:21,092 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 06:45:21,093 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 06:45:21,093 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 06:45:21,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 06:45:21,095 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:45:20" (1/1) ... [2021-11-17 06:45:21,101 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 06:45:21,110 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 06:45:21,123 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-17 06:45:21,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-17 06:45:21,166 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 06:45:21,166 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 06:45:21,166 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2021-11-17 06:45:21,167 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2021-11-17 06:45:21,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 06:45:21,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 06:45:21,167 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work [2021-11-17 06:45:21,167 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work [2021-11-17 06:45:21,167 INFO L130 BoogieDeclarations]: Found specification of procedure set_carrier [2021-11-17 06:45:21,168 INFO L138 BoogieDeclarations]: Found implementation of procedure set_carrier [2021-11-17 06:45:21,168 INFO L130 BoogieDeclarations]: Found specification of procedure read_mii_word [2021-11-17 06:45:21,168 INFO L138 BoogieDeclarations]: Found implementation of procedure read_mii_word [2021-11-17 06:45:21,168 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-17 06:45:21,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-17 06:45:21,168 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-17 06:45:21,168 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-17 06:45:21,169 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-17 06:45:21,169 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-17 06:45:21,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 06:45:21,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 06:45:21,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 06:45:21,169 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-11-17 06:45:21,170 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-11-17 06:45:21,170 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_dec_workqueue [2021-11-17 06:45:21,170 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_dec_workqueue [2021-11-17 06:45:21,170 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 06:45:21,170 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 06:45:21,170 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_disconnect [2021-11-17 06:45:21,170 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_disconnect [2021-11-17 06:45:21,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 06:45:21,171 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2021-11-17 06:45:21,171 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2021-11-17 06:45:21,171 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 06:45:21,171 INFO L130 BoogieDeclarations]: Found specification of procedure __mii_op [2021-11-17 06:45:21,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __mii_op [2021-11-17 06:45:21,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-17 06:45:21,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-17 06:45:21,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 06:45:21,172 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-11-17 06:45:21,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-11-17 06:45:21,173 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 06:45:21,173 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 06:45:21,173 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_set_wol [2021-11-17 06:45:21,173 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_set_wol [2021-11-17 06:45:21,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-17 06:45:21,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-17 06:45:21,174 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-17 06:45:21,174 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-17 06:45:21,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-11-17 06:45:21,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-11-17 06:45:21,174 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_set_multicast [2021-11-17 06:45:21,174 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_set_multicast [2021-11-17 06:45:21,175 INFO L130 BoogieDeclarations]: Found specification of procedure set_register [2021-11-17 06:45:21,175 INFO L138 BoogieDeclarations]: Found implementation of procedure set_register [2021-11-17 06:45:21,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 06:45:21,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-17 06:45:21,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-17 06:45:21,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 06:45:21,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 06:45:21,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 06:45:21,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 06:45:21,178 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-17 06:45:21,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-17 06:45:21,178 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2021-11-17 06:45:21,178 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2021-11-17 06:45:21,178 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-11-17 06:45:21,178 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-11-17 06:45:21,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-11-17 06:45:21,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-11-17 06:45:21,179 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-11-17 06:45:21,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-11-17 06:45:21,180 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-11-17 06:45:21,180 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-11-17 06:45:21,180 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-17 06:45:21,180 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-17 06:45:21,180 INFO L130 BoogieDeclarations]: Found specification of procedure queue_delayed_work [2021-11-17 06:45:21,180 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_delayed_work [2021-11-17 06:45:21,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 06:45:21,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 06:45:21,181 INFO L130 BoogieDeclarations]: Found specification of procedure read_bulk_callback [2021-11-17 06:45:21,181 INFO L138 BoogieDeclarations]: Found implementation of procedure read_bulk_callback [2021-11-17 06:45:21,181 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-11-17 06:45:21,181 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-11-17 06:45:21,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 06:45:21,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 06:45:21,182 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 06:45:21,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 06:45:21,182 INFO L130 BoogieDeclarations]: Found specification of procedure write_mii_word [2021-11-17 06:45:21,182 INFO L138 BoogieDeclarations]: Found implementation of procedure write_mii_word [2021-11-17 06:45:21,183 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2021-11-17 06:45:21,183 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2021-11-17 06:45:21,183 INFO L130 BoogieDeclarations]: Found specification of procedure strsep [2021-11-17 06:45:21,183 INFO L138 BoogieDeclarations]: Found implementation of procedure strsep [2021-11-17 06:45:21,184 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-17 06:45:21,184 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-17 06:45:21,184 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_open [2021-11-17 06:45:21,184 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_open [2021-11-17 06:45:21,185 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-17 06:45:21,185 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-17 06:45:21,185 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-17 06:45:21,185 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-17 06:45:21,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 06:45:21,185 INFO L130 BoogieDeclarations]: Found specification of procedure read_eprom_word [2021-11-17 06:45:21,186 INFO L138 BoogieDeclarations]: Found implementation of procedure read_eprom_word [2021-11-17 06:45:21,186 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-17 06:45:21,186 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-17 06:45:21,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 06:45:21,186 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_nway_reset [2021-11-17 06:45:21,187 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_nway_reset [2021-11-17 06:45:21,187 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_resume [2021-11-17 06:45:21,187 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_resume [2021-11-17 06:45:21,187 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 06:45:21,187 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_tx_timeout [2021-11-17 06:45:21,188 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_tx_timeout [2021-11-17 06:45:21,188 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 06:45:21,188 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 06:45:21,189 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-17 06:45:21,191 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-17 06:45:21,191 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urbs [2021-11-17 06:45:21,191 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urbs [2021-11-17 06:45:21,191 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-17 06:45:21,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-17 06:45:21,193 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-17 06:45:21,193 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-17 06:45:21,193 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-17 06:45:21,194 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-17 06:45:21,199 INFO L130 BoogieDeclarations]: Found specification of procedure intr_callback [2021-11-17 06:45:21,200 INFO L138 BoogieDeclarations]: Found implementation of procedure intr_callback [2021-11-17 06:45:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb_ip_align [2021-11-17 06:45:21,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb_ip_align [2021-11-17 06:45:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-17 06:45:21,200 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-17 06:45:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-17 06:45:21,200 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-17 06:45:21,200 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pegasus_exit_11_2 [2021-11-17 06:45:21,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pegasus_exit_11_2 [2021-11-17 06:45:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 06:45:21,201 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 06:45:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 06:45:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 06:45:21,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 06:45:21,201 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-17 06:45:21,202 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-17 06:45:21,202 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2021-11-17 06:45:21,202 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2021-11-17 06:45:21,202 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-17 06:45:21,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-17 06:45:21,202 INFO L130 BoogieDeclarations]: Found specification of procedure pegasus_close [2021-11-17 06:45:21,202 INFO L138 BoogieDeclarations]: Found implementation of procedure pegasus_close [2021-11-17 06:45:21,202 INFO L130 BoogieDeclarations]: Found specification of procedure get_registers [2021-11-17 06:45:21,203 INFO L138 BoogieDeclarations]: Found implementation of procedure get_registers [2021-11-17 06:45:21,203 INFO L130 BoogieDeclarations]: Found specification of procedure delayed_work_timer_fn [2021-11-17 06:45:21,203 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_3_4 [2021-11-17 06:45:21,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_3_4 [2021-11-17 06:45:21,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 06:45:21,203 INFO L130 BoogieDeclarations]: Found specification of procedure set_registers [2021-11-17 06:45:21,204 INFO L138 BoogieDeclarations]: Found implementation of procedure set_registers [2021-11-17 06:45:21,204 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-17 06:45:21,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-17 06:45:21,932 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 06:45:21,934 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 06:45:22,260 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 06:45:26,310 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-17 06:45:26,529 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 06:45:26,550 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 06:45:26,551 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-17 06:45:26,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 06:45:26 BoogieIcfgContainer [2021-11-17 06:45:26,554 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 06:45:26,555 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 06:45:26,555 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 06:45:26,558 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 06:45:26,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 06:45:18" (1/3) ... [2021-11-17 06:45:26,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57af4045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 06:45:26, skipping insertion in model container [2021-11-17 06:45:26,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 06:45:20" (2/3) ... [2021-11-17 06:45:26,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57af4045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 06:45:26, skipping insertion in model container [2021-11-17 06:45:26,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 06:45:26" (3/3) ... [2021-11-17 06:45:26,561 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-usb-pegasus.cil.i [2021-11-17 06:45:26,565 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 06:45:26,565 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-17 06:45:26,618 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 06:45:26,632 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-17 06:45:26,632 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-17 06:45:26,678 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) [2021-11-17 06:45:26,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-17 06:45:26,699 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:45:26,700 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] [2021-11-17 06:45:26,700 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:45:26,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:45:26,705 INFO L85 PathProgramCache]: Analyzing trace with hash -347322488, now seen corresponding path program 1 times [2021-11-17 06:45:26,712 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:45:26,713 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866510070] [2021-11-17 06:45:26,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:45:26,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:45:27,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:27,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:45:27,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:27,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:27,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:27,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:45:27,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:27,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:27,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:27,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:45:27,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:27,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:27,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:27,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:45:27,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:27,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:27,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:27,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:45:27,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:27,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:27,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:45:27,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:27,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:27,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:27,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:45:27,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:27,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:27,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:27,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:45:27,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:27,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:27,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:27,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 06:45:27,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:27,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:27,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:27,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 06:45:27,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:27,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:27,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:27,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 06:45:27,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:27,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:27,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 06:45:27,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:27,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:27,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 06:45:27,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:27,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 06:45:27,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:27,665 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-11-17 06:45:27,665 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:45:27,665 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866510070] [2021-11-17 06:45:27,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866510070] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:45:27,666 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:45:27,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 06:45:27,669 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457837169] [2021-11-17 06:45:27,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:45:27,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 06:45:27,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:45:27,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 06:45:27,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 06:45:27,706 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) [2021-11-17 06:45:30,277 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:45:32,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:45:32,743 INFO L93 Difference]: Finished difference Result 4160 states and 5850 transitions. [2021-11-17 06:45:32,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 06:45:32,746 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 [2021-11-17 06:45:32,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:45:32,782 INFO L225 Difference]: With dead ends: 4160 [2021-11-17 06:45:32,782 INFO L226 Difference]: Without dead ends: 2702 [2021-11-17 06:45:32,793 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 [2021-11-17 06:45:32,801 INFO L933 BasicCegarLoop]: 2158 mSDtfsCounter, 2144 mSDsluCounter, 2758 mSDsCounter, 0 mSdLazyCounter, 883 mSolverCounterSat, 785 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2360 SdHoareTripleChecker+Valid, 4916 SdHoareTripleChecker+Invalid, 1669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 785 IncrementalHoareTripleChecker+Valid, 883 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2021-11-17 06:45:32,802 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2360 Valid, 4916 Invalid, 1669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [785 Valid, 883 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2021-11-17 06:45:32,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2702 states. [2021-11-17 06:45:32,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2702 to 2646. [2021-11-17 06:45:32,983 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) [2021-11-17 06:45:32,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2646 states to 2646 states and 3658 transitions. [2021-11-17 06:45:33,002 INFO L78 Accepts]: Start accepts. Automaton has 2646 states and 3658 transitions. Word has length 165 [2021-11-17 06:45:33,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:45:33,003 INFO L470 AbstractCegarLoop]: Abstraction has 2646 states and 3658 transitions. [2021-11-17 06:45:33,003 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) [2021-11-17 06:45:33,004 INFO L276 IsEmpty]: Start isEmpty. Operand 2646 states and 3658 transitions. [2021-11-17 06:45:33,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-11-17 06:45:33,009 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:45:33,009 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] [2021-11-17 06:45:33,009 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 06:45:33,010 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:45:33,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:45:33,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1754380236, now seen corresponding path program 1 times [2021-11-17 06:45:33,010 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:45:33,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515379841] [2021-11-17 06:45:33,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:45:33,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:45:33,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:33,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:45:33,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:33,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:33,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:33,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:45:33,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:33,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:33,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:33,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:45:33,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:33,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:33,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:33,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:45:33,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:33,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:33,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:33,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:45:33,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:33,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:33,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:33,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:45:33,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:33,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:33,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:33,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:45:33,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:33,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:33,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:33,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:45:33,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:33,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:33,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:33,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 06:45:33,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:33,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:33,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:33,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 06:45:33,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:33,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:33,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:33,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 06:45:33,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:33,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:33,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:33,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 06:45:33,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:33,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:33,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:33,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 06:45:33,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:33,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-11-17 06:45:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:33,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 06:45:33,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:33,504 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-11-17 06:45:33,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:45:33,505 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515379841] [2021-11-17 06:45:33,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515379841] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:45:33,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:45:33,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 06:45:33,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214030548] [2021-11-17 06:45:33,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:45:33,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 06:45:33,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:45:33,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 06:45:33,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 06:45:33,509 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) [2021-11-17 06:45:35,586 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:45:38,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:45:38,009 INFO L93 Difference]: Finished difference Result 7458 states and 10348 transitions. [2021-11-17 06:45:38,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 06:45:38,010 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 [2021-11-17 06:45:38,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:45:38,041 INFO L225 Difference]: With dead ends: 7458 [2021-11-17 06:45:38,041 INFO L226 Difference]: Without dead ends: 4841 [2021-11-17 06:45:38,054 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 [2021-11-17 06:45:38,055 INFO L933 BasicCegarLoop]: 2045 mSDtfsCounter, 1763 mSDsluCounter, 2631 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 650 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1930 SdHoareTripleChecker+Valid, 4676 SdHoareTripleChecker+Invalid, 1493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 650 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-11-17 06:45:38,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1930 Valid, 4676 Invalid, 1493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [650 Valid, 842 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2021-11-17 06:45:38,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4841 states. [2021-11-17 06:45:38,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4841 to 4731. [2021-11-17 06:45:38,280 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) [2021-11-17 06:45:38,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4731 states to 4731 states and 6540 transitions. [2021-11-17 06:45:38,303 INFO L78 Accepts]: Start accepts. Automaton has 4731 states and 6540 transitions. Word has length 180 [2021-11-17 06:45:38,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:45:38,305 INFO L470 AbstractCegarLoop]: Abstraction has 4731 states and 6540 transitions. [2021-11-17 06:45:38,306 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) [2021-11-17 06:45:38,306 INFO L276 IsEmpty]: Start isEmpty. Operand 4731 states and 6540 transitions. [2021-11-17 06:45:38,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-11-17 06:45:38,312 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:45:38,312 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] [2021-11-17 06:45:38,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 06:45:38,313 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:45:38,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:45:38,314 INFO L85 PathProgramCache]: Analyzing trace with hash 450289277, now seen corresponding path program 1 times [2021-11-17 06:45:38,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:45:38,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413466429] [2021-11-17 06:45:38,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:45:38,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:45:38,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:38,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:45:38,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:38,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:38,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:38,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:45:38,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:38,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:38,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:38,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:45:38,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:38,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:38,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:38,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:45:38,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:38,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:38,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:38,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:45:38,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:38,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:38,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:45:38,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:38,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:38,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:38,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:45:38,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:38,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:38,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:38,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:45:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:38,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:38,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:38,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 06:45:38,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:38,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:38,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:38,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 06:45:38,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:38,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:38,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:38,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 06:45:38,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:38,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:38,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:38,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 06:45:38,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:38,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:38,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:38,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 06:45:38,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:38,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2021-11-17 06:45:38,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:38,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-11-17 06:45:38,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:38,742 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 630 trivial. 0 not checked. [2021-11-17 06:45:38,742 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:45:38,743 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413466429] [2021-11-17 06:45:38,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413466429] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:45:38,743 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:45:38,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 06:45:38,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690755924] [2021-11-17 06:45:38,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:45:38,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 06:45:38,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:45:38,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 06:45:38,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 06:45:38,748 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) [2021-11-17 06:45:40,196 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:45:41,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:45:41,875 INFO L93 Difference]: Finished difference Result 11159 states and 15411 transitions. [2021-11-17 06:45:41,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 06:45:41,876 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 [2021-11-17 06:45:41,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:45:41,908 INFO L225 Difference]: With dead ends: 11159 [2021-11-17 06:45:41,908 INFO L226 Difference]: Without dead ends: 6457 [2021-11-17 06:45:41,922 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 [2021-11-17 06:45:41,926 INFO L933 BasicCegarLoop]: 2304 mSDtfsCounter, 1049 mSDsluCounter, 2810 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 411 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s 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, 2.9s IncrementalHoareTripleChecker+Time [2021-11-17 06:45:41,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1155 Valid, 5114 Invalid, 1170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [411 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-17 06:45:41,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6457 states. [2021-11-17 06:45:42,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6457 to 6311. [2021-11-17 06:45:42,126 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) [2021-11-17 06:45:42,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6311 states to 6311 states and 8637 transitions. [2021-11-17 06:45:42,149 INFO L78 Accepts]: Start accepts. Automaton has 6311 states and 8637 transitions. Word has length 182 [2021-11-17 06:45:42,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:45:42,151 INFO L470 AbstractCegarLoop]: Abstraction has 6311 states and 8637 transitions. [2021-11-17 06:45:42,151 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) [2021-11-17 06:45:42,151 INFO L276 IsEmpty]: Start isEmpty. Operand 6311 states and 8637 transitions. [2021-11-17 06:45:42,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-11-17 06:45:42,154 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:45:42,154 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] [2021-11-17 06:45:42,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 06:45:42,155 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:45:42,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:45:42,155 INFO L85 PathProgramCache]: Analyzing trace with hash -885392, now seen corresponding path program 1 times [2021-11-17 06:45:42,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:45:42,156 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730185410] [2021-11-17 06:45:42,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:45:42,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:45:42,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:42,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:45:42,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:42,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:42,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:42,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:45:42,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:42,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:42,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:45:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:42,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:42,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:42,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:45:42,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:42,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:42,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:42,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:45:42,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:42,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:42,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:45:42,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:42,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:42,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:45:42,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:42,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:42,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:42,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:45:42,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:42,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:42,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 06:45:42,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:42,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:42,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 06:45:42,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:42,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:42,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:42,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 06:45:42,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:42,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:42,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:42,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 06:45:42,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:42,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:42,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:42,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 06:45:42,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:42,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-11-17 06:45:42,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:42,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2021-11-17 06:45:42,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:42,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-11-17 06:45:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:42,579 INFO L134 CoverageAnalysis]: Checked inductivity of 674 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2021-11-17 06:45:42,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:45:42,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730185410] [2021-11-17 06:45:42,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730185410] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:45:42,579 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:45:42,580 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 06:45:42,580 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409072707] [2021-11-17 06:45:42,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:45:42,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 06:45:42,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:45:42,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 06:45:42,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 06:45:42,584 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) [2021-11-17 06:45:44,659 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:45:46,716 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:45:48,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:45:48,816 INFO L93 Difference]: Finished difference Result 19075 states and 26173 transitions. [2021-11-17 06:45:48,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 06:45:48,817 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 [2021-11-17 06:45:48,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:45:48,906 INFO L225 Difference]: With dead ends: 19075 [2021-11-17 06:45:48,906 INFO L226 Difference]: Without dead ends: 12793 [2021-11-17 06:45:48,935 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 [2021-11-17 06:45:48,937 INFO L933 BasicCegarLoop]: 2147 mSDtfsCounter, 2108 mSDsluCounter, 2747 mSDsCounter, 0 mSdLazyCounter, 824 mSolverCounterSat, 695 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2308 SdHoareTripleChecker+Valid, 4894 SdHoareTripleChecker+Invalid, 1521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 695 IncrementalHoareTripleChecker+Valid, 824 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-11-17 06:45:48,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2308 Valid, 4894 Invalid, 1521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [695 Valid, 824 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2021-11-17 06:45:48,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12793 states. [2021-11-17 06:45:49,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12793 to 12503. [2021-11-17 06:45:49,413 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) [2021-11-17 06:45:49,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12503 states to 12503 states and 17104 transitions. [2021-11-17 06:45:49,467 INFO L78 Accepts]: Start accepts. Automaton has 12503 states and 17104 transitions. Word has length 188 [2021-11-17 06:45:49,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:45:49,467 INFO L470 AbstractCegarLoop]: Abstraction has 12503 states and 17104 transitions. [2021-11-17 06:45:49,468 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) [2021-11-17 06:45:49,469 INFO L276 IsEmpty]: Start isEmpty. Operand 12503 states and 17104 transitions. [2021-11-17 06:45:49,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-11-17 06:45:49,474 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:45:49,474 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] [2021-11-17 06:45:49,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 06:45:49,475 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:45:49,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:45:49,475 INFO L85 PathProgramCache]: Analyzing trace with hash 362972016, now seen corresponding path program 1 times [2021-11-17 06:45:49,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:45:49,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112589218] [2021-11-17 06:45:49,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:45:49,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:45:49,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:49,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:45:49,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:49,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:49,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:49,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:45:49,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:49,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:49,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:49,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:45:49,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:49,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:49,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:49,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:45:49,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:49,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:49,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:49,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:45:49,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:49,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:49,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:49,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:45:49,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:49,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:49,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:45:49,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:49,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:49,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:49,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:45:49,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:49,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:49,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:49,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 06:45:49,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:49,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:49,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:49,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 06:45:49,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:49,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:49,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:49,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 06:45:49,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:49,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:49,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:49,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 06:45:49,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:49,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:49,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:49,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 06:45:49,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:49,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-17 06:45:49,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:49,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-11-17 06:45:49,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:49,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-11-17 06:45:49,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:49,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2021-11-17 06:45:49,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:49,832 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2021-11-17 06:45:49,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:45:49,833 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112589218] [2021-11-17 06:45:49,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112589218] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:45:49,833 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:45:49,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 06:45:49,833 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670885804] [2021-11-17 06:45:49,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:45:49,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 06:45:49,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:45:49,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 06:45:49,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 06:45:49,835 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) [2021-11-17 06:45:51,716 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:45:53,491 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:45:55,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:45:55,502 INFO L93 Difference]: Finished difference Result 37883 states and 51938 transitions. [2021-11-17 06:45:55,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 06:45:55,502 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 [2021-11-17 06:45:55,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:45:55,620 INFO L225 Difference]: With dead ends: 37883 [2021-11-17 06:45:55,621 INFO L226 Difference]: Without dead ends: 25409 [2021-11-17 06:45:55,674 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 [2021-11-17 06:45:55,677 INFO L933 BasicCegarLoop]: 3349 mSDtfsCounter, 1919 mSDsluCounter, 3486 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 454 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s 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, 5.2s IncrementalHoareTripleChecker+Time [2021-11-17 06:45:55,677 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2119 Valid, 6835 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [454 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2021-11-17 06:45:55,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25409 states. [2021-11-17 06:45:56,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25409 to 24847. [2021-11-17 06:45:56,442 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) [2021-11-17 06:45:56,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24847 states to 24847 states and 33958 transitions. [2021-11-17 06:45:56,636 INFO L78 Accepts]: Start accepts. Automaton has 24847 states and 33958 transitions. Word has length 205 [2021-11-17 06:45:56,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:45:56,637 INFO L470 AbstractCegarLoop]: Abstraction has 24847 states and 33958 transitions. [2021-11-17 06:45:56,637 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) [2021-11-17 06:45:56,637 INFO L276 IsEmpty]: Start isEmpty. Operand 24847 states and 33958 transitions. [2021-11-17 06:45:56,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-11-17 06:45:56,640 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:45:56,641 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] [2021-11-17 06:45:56,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 06:45:56,641 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:45:56,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:45:56,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1033994697, now seen corresponding path program 1 times [2021-11-17 06:45:56,642 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:45:56,642 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754959970] [2021-11-17 06:45:56,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:45:56,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:45:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:56,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:45:56,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:56,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:56,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:56,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:45:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:56,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:56,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:56,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:45:56,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:56,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:56,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:56,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:45:56,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:56,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:56,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:56,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:45:56,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:56,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:56,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:56,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:45:56,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:56,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:56,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:56,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:45:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:56,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:56,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:56,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:45:56,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:56,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:56,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:56,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 06:45:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:56,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:56,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:56,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 06:45:56,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:56,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:56,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:56,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 06:45:56,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:56,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:56,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:56,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 06:45:56,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:56,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:45:56,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:56,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 06:45:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:56,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-11-17 06:45:56,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:56,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 06:45:56,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:56,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2021-11-17 06:45:56,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:56,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-11-17 06:45:56,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:56,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-11-17 06:45:56,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:45:56,979 INFO L134 CoverageAnalysis]: Checked inductivity of 726 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 720 trivial. 0 not checked. [2021-11-17 06:45:56,980 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:45:56,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754959970] [2021-11-17 06:45:56,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754959970] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:45:56,980 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:45:56,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 06:45:56,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130578827] [2021-11-17 06:45:56,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:45:56,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 06:45:56,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:45:56,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 06:45:56,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 06:45:56,982 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) [2021-11-17 06:45:59,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:45:59,595 INFO L93 Difference]: Finished difference Result 51011 states and 69531 transitions. [2021-11-17 06:45:59,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 06:45:59,596 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 [2021-11-17 06:45:59,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:45:59,710 INFO L225 Difference]: With dead ends: 51011 [2021-11-17 06:45:59,711 INFO L226 Difference]: Without dead ends: 26193 [2021-11-17 06:45:59,782 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 [2021-11-17 06:45:59,784 INFO L933 BasicCegarLoop]: 1845 mSDtfsCounter, 409 mSDsluCounter, 2555 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 305 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s 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, 2.2s IncrementalHoareTripleChecker+Time [2021-11-17 06:45:59,784 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [454 Valid, 4400 Invalid, 925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [305 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2021-11-17 06:45:59,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26193 states. [2021-11-17 06:46:00,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26193 to 25593. [2021-11-17 06:46:00,662 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) [2021-11-17 06:46:00,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25593 states to 25593 states and 34730 transitions. [2021-11-17 06:46:00,749 INFO L78 Accepts]: Start accepts. Automaton has 25593 states and 34730 transitions. Word has length 206 [2021-11-17 06:46:00,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:46:00,749 INFO L470 AbstractCegarLoop]: Abstraction has 25593 states and 34730 transitions. [2021-11-17 06:46:00,750 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) [2021-11-17 06:46:00,750 INFO L276 IsEmpty]: Start isEmpty. Operand 25593 states and 34730 transitions. [2021-11-17 06:46:00,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-11-17 06:46:00,764 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:46:00,765 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] [2021-11-17 06:46:00,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 06:46:00,765 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:46:00,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:46:00,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1219407040, now seen corresponding path program 1 times [2021-11-17 06:46:00,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:46:00,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241283433] [2021-11-17 06:46:00,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:46:00,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:46:00,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:00,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:46:00,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:00,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:00,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:00,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:46:00,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:00,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:00,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:00,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:46:00,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:00,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:00,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:46:01,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:01,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:46:01,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:01,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:46:01,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:01,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:46:01,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:01,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:46:01,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:01,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 06:46:01,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:01,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 06:46:01,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:01,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 06:46:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 06:46:01,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:01,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 06:46:01,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-17 06:46:01,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 06:46:01,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-17 06:46:01,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 06:46:01,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:01,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 06:46:01,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 06:46:01,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 06:46:01,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-11-17 06:46:01,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-17 06:46:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-11-17 06:46:01,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2021-11-17 06:46:01,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:01,179 INFO L134 CoverageAnalysis]: Checked inductivity of 921 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-11-17 06:46:01,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:46:01,180 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241283433] [2021-11-17 06:46:01,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241283433] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:46:01,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:46:01,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 06:46:01,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172749099] [2021-11-17 06:46:01,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:46:01,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 06:46:01,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:46:01,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 06:46:01,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 06:46:01,182 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) [2021-11-17 06:46:03,547 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:46:05,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:46:05,903 INFO L93 Difference]: Finished difference Result 74701 states and 101664 transitions. [2021-11-17 06:46:05,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 06:46:05,903 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 [2021-11-17 06:46:05,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:46:06,136 INFO L225 Difference]: With dead ends: 74701 [2021-11-17 06:46:06,137 INFO L226 Difference]: Without dead ends: 49187 [2021-11-17 06:46:06,227 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 [2021-11-17 06:46:06,229 INFO L933 BasicCegarLoop]: 3500 mSDtfsCounter, 1792 mSDsluCounter, 3574 mSDsCounter, 0 mSdLazyCounter, 905 mSolverCounterSat, 419 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1980 SdHoareTripleChecker+Valid, 7074 SdHoareTripleChecker+Invalid, 1325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 419 IncrementalHoareTripleChecker+Valid, 905 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-11-17 06:46:06,229 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1980 Valid, 7074 Invalid, 1325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [419 Valid, 905 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2021-11-17 06:46:06,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49187 states. [2021-11-17 06:46:07,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49187 to 48145. [2021-11-17 06:46:07,797 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) [2021-11-17 06:46:08,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48145 states to 48145 states and 65410 transitions. [2021-11-17 06:46:08,159 INFO L78 Accepts]: Start accepts. Automaton has 48145 states and 65410 transitions. Word has length 265 [2021-11-17 06:46:08,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:46:08,160 INFO L470 AbstractCegarLoop]: Abstraction has 48145 states and 65410 transitions. [2021-11-17 06:46:08,160 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) [2021-11-17 06:46:08,160 INFO L276 IsEmpty]: Start isEmpty. Operand 48145 states and 65410 transitions. [2021-11-17 06:46:08,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2021-11-17 06:46:08,168 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:46:08,168 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] [2021-11-17 06:46:08,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 06:46:08,169 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:46:08,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:46:08,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1696517317, now seen corresponding path program 1 times [2021-11-17 06:46:08,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:46:08,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363423383] [2021-11-17 06:46:08,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:46:08,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:46:08,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:46:08,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:08,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:46:08,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:08,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:46:08,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:08,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:46:08,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:08,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:46:08,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:08,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:46:08,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:08,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:46:08,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:08,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:46:08,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:08,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 06:46:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 06:46:08,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:08,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 06:46:08,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:08,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 06:46:08,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:08,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 06:46:08,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-17 06:46:08,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 06:46:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-17 06:46:08,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 06:46:08,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:08,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 06:46:08,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 06:46:08,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-11-17 06:46:08,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-11-17 06:46:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-17 06:46:08,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-11-17 06:46:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-11-17 06:46:08,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:08,562 INFO L134 CoverageAnalysis]: Checked inductivity of 921 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 900 trivial. 0 not checked. [2021-11-17 06:46:08,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:46:08,562 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363423383] [2021-11-17 06:46:08,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363423383] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:46:08,563 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:46:08,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 06:46:08,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709154339] [2021-11-17 06:46:08,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:46:08,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 06:46:08,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:46:08,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 06:46:08,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 06:46:08,565 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) [2021-11-17 06:46:10,636 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:46:12,694 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:46:15,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:46:15,617 INFO L93 Difference]: Finished difference Result 120273 states and 163697 transitions. [2021-11-17 06:46:15,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 06:46:15,617 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 [2021-11-17 06:46:15,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:46:16,035 INFO L225 Difference]: With dead ends: 120273 [2021-11-17 06:46:16,035 INFO L226 Difference]: Without dead ends: 71833 [2021-11-17 06:46:16,185 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 [2021-11-17 06:46:16,186 INFO L933 BasicCegarLoop]: 3504 mSDtfsCounter, 1789 mSDsluCounter, 3581 mSDsCounter, 0 mSdLazyCounter, 905 mSolverCounterSat, 417 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1975 SdHoareTripleChecker+Valid, 7085 SdHoareTripleChecker+Invalid, 1324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 417 IncrementalHoareTripleChecker+Valid, 905 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2021-11-17 06:46:16,186 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1975 Valid, 7085 Invalid, 1324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [417 Valid, 905 Invalid, 2 Unknown, 0 Unchecked, 5.6s Time] [2021-11-17 06:46:16,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71833 states. [2021-11-17 06:46:18,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71833 to 70351. [2021-11-17 06:46:18,342 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) [2021-11-17 06:46:18,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70351 states to 70351 states and 95651 transitions. [2021-11-17 06:46:18,640 INFO L78 Accepts]: Start accepts. Automaton has 70351 states and 95651 transitions. Word has length 267 [2021-11-17 06:46:18,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:46:18,641 INFO L470 AbstractCegarLoop]: Abstraction has 70351 states and 95651 transitions. [2021-11-17 06:46:18,641 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) [2021-11-17 06:46:18,641 INFO L276 IsEmpty]: Start isEmpty. Operand 70351 states and 95651 transitions. [2021-11-17 06:46:18,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2021-11-17 06:46:18,649 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:46:18,649 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] [2021-11-17 06:46:18,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 06:46:18,650 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:46:18,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:46:18,650 INFO L85 PathProgramCache]: Analyzing trace with hash 170478624, now seen corresponding path program 1 times [2021-11-17 06:46:18,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:46:18,650 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833655213] [2021-11-17 06:46:18,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:46:18,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:46:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:46:19,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:19,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:46:19,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:19,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:46:19,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:19,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:46:19,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:46:19,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:19,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:46:19,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:19,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:46:19,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:19,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:46:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 06:46:19,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:19,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 06:46:19,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:19,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 06:46:19,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:19,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 06:46:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:19,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 06:46:19,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-17 06:46:19,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 06:46:19,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-17 06:46:19,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-17 06:46:19,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 06:46:19,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 06:46:19,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-17 06:46:19,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2021-11-17 06:46:19,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-11-17 06:46:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 06:46:19,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-11-17 06:46:19,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:19,249 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 847 trivial. 0 not checked. [2021-11-17 06:46:19,250 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:46:19,250 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833655213] [2021-11-17 06:46:19,250 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833655213] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:46:19,250 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:46:19,250 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 06:46:19,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130011013] [2021-11-17 06:46:19,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:46:19,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 06:46:19,252 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:46:19,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 06:46:19,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 06:46:19,252 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) [2021-11-17 06:46:21,321 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:46:25,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:46:25,431 INFO L93 Difference]: Finished difference Result 169491 states and 229663 transitions. [2021-11-17 06:46:25,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 06:46:25,432 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 [2021-11-17 06:46:25,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:46:25,921 INFO L225 Difference]: With dead ends: 169491 [2021-11-17 06:46:25,921 INFO L226 Difference]: Without dead ends: 99219 [2021-11-17 06:46:26,102 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 [2021-11-17 06:46:26,102 INFO L933 BasicCegarLoop]: 2758 mSDtfsCounter, 1529 mSDsluCounter, 2770 mSDsCounter, 0 mSdLazyCounter, 807 mSolverCounterSat, 390 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1690 SdHoareTripleChecker+Valid, 5528 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 807 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2021-11-17 06:46:26,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1690 Valid, 5528 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 807 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2021-11-17 06:46:26,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99219 states. [2021-11-17 06:46:28,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99219 to 97274. [2021-11-17 06:46:28,564 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) [2021-11-17 06:46:28,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97274 states to 97274 states and 130898 transitions. [2021-11-17 06:46:28,935 INFO L78 Accepts]: Start accepts. Automaton has 97274 states and 130898 transitions. Word has length 272 [2021-11-17 06:46:28,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:46:28,936 INFO L470 AbstractCegarLoop]: Abstraction has 97274 states and 130898 transitions. [2021-11-17 06:46:28,936 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) [2021-11-17 06:46:28,937 INFO L276 IsEmpty]: Start isEmpty. Operand 97274 states and 130898 transitions. [2021-11-17 06:46:28,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2021-11-17 06:46:28,944 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:46:28,944 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] [2021-11-17 06:46:28,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 06:46:28,945 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:46:28,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:46:28,945 INFO L85 PathProgramCache]: Analyzing trace with hash -2144596284, now seen corresponding path program 1 times [2021-11-17 06:46:28,945 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:46:28,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39322196] [2021-11-17 06:46:28,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:46:28,946 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:46:29,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:46:29,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:29,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:46:29,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:29,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:46:29,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:46:29,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:29,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:46:29,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:46:29,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:29,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:46:29,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:29,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:46:29,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:29,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 06:46:29,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:29,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 06:46:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:29,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 06:46:29,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:29,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 06:46:29,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:29,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 06:46:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-17 06:46:29,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 06:46:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-17 06:46:29,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 06:46:29,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:29,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 06:46:29,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 06:46:29,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-11-17 06:46:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 06:46:29,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 06:46:29,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-11-17 06:46:29,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-11-17 06:46:29,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-17 06:46:29,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-11-17 06:46:29,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 284 [2021-11-17 06:46:29,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:29,316 INFO L134 CoverageAnalysis]: Checked inductivity of 1077 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 1040 trivial. 0 not checked. [2021-11-17 06:46:29,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:46:29,317 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39322196] [2021-11-17 06:46:29,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39322196] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:46:29,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:46:29,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 06:46:29,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003402175] [2021-11-17 06:46:29,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:46:29,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 06:46:29,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:46:29,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 06:46:29,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 06:46:29,320 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) [2021-11-17 06:46:30,580 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:46:34,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:46:34,623 INFO L93 Difference]: Finished difference Result 227851 states and 306843 transitions. [2021-11-17 06:46:34,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 06:46:34,624 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 [2021-11-17 06:46:34,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:46:35,222 INFO L225 Difference]: With dead ends: 227851 [2021-11-17 06:46:35,222 INFO L226 Difference]: Without dead ends: 130317 [2021-11-17 06:46:35,405 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 [2021-11-17 06:46:35,406 INFO L933 BasicCegarLoop]: 3501 mSDtfsCounter, 1787 mSDsluCounter, 3575 mSDsCounter, 0 mSdLazyCounter, 899 mSolverCounterSat, 414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s 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, 2.9s IncrementalHoareTripleChecker+Time [2021-11-17 06:46:35,406 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1973 Valid, 7076 Invalid, 1313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [414 Valid, 899 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2021-11-17 06:46:35,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130317 states. [2021-11-17 06:46:38,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130317 to 97274. [2021-11-17 06:46:38,152 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) [2021-11-17 06:46:38,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97274 states to 97274 states and 130897 transitions. [2021-11-17 06:46:38,428 INFO L78 Accepts]: Start accepts. Automaton has 97274 states and 130897 transitions. Word has length 291 [2021-11-17 06:46:38,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:46:38,431 INFO L470 AbstractCegarLoop]: Abstraction has 97274 states and 130897 transitions. [2021-11-17 06:46:38,431 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) [2021-11-17 06:46:38,431 INFO L276 IsEmpty]: Start isEmpty. Operand 97274 states and 130897 transitions. [2021-11-17 06:46:38,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2021-11-17 06:46:38,440 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:46:38,440 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] [2021-11-17 06:46:38,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-17 06:46:38,441 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:46:38,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:46:38,441 INFO L85 PathProgramCache]: Analyzing trace with hash 227255181, now seen corresponding path program 1 times [2021-11-17 06:46:38,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:46:38,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485789999] [2021-11-17 06:46:38,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:46:38,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:46:38,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:46:38,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:38,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:46:38,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:38,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:46:38,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:38,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:46:38,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:38,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:46:38,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:38,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:46:38,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:38,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:46:38,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:38,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:46:38,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:38,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 06:46:38,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:38,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 06:46:38,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:38,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 06:46:38,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:38,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 06:46:38,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:38,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 06:46:38,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-17 06:46:38,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 06:46:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-17 06:46:38,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 06:46:38,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:38,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 06:46:38,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 06:46:38,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-11-17 06:46:38,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 06:46:38,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 06:46:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-11-17 06:46:38,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-11-17 06:46:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-17 06:46:38,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-11-17 06:46:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-17 06:46:38,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:38,941 INFO L134 CoverageAnalysis]: Checked inductivity of 1077 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1077 trivial. 0 not checked. [2021-11-17 06:46:38,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:46:38,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485789999] [2021-11-17 06:46:38,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485789999] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:46:38,942 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:46:38,942 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-17 06:46:38,942 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291245979] [2021-11-17 06:46:38,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:46:38,943 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-17 06:46:38,943 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:46:38,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-17 06:46:38,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-17 06:46:38,944 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) [2021-11-17 06:46:40,358 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:46:41,793 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:46:45,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:46:45,434 INFO L93 Difference]: Finished difference Result 196365 states and 266098 transitions. [2021-11-17 06:46:45,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 06:46:45,434 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 289 [2021-11-17 06:46:45,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:46:45,877 INFO L225 Difference]: With dead ends: 196365 [2021-11-17 06:46:45,878 INFO L226 Difference]: Without dead ends: 99170 [2021-11-17 06:46:46,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-17 06:46:46,047 INFO L933 BasicCegarLoop]: 1821 mSDtfsCounter, 1835 mSDsluCounter, 2090 mSDsCounter, 0 mSdLazyCounter, 1154 mSolverCounterSat, 414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1998 SdHoareTripleChecker+Valid, 3911 SdHoareTripleChecker+Invalid, 1568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 414 IncrementalHoareTripleChecker+Valid, 1154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-11-17 06:46:46,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1998 Valid, 3911 Invalid, 1568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [414 Valid, 1154 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2021-11-17 06:46:46,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99170 states. [2021-11-17 06:46:48,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99170 to 97274. [2021-11-17 06:46:48,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97274 states, 71906 states have (on average 1.286165271326454) internal successors, (92483), 72573 states have internal predecessors, (92483), 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) [2021-11-17 06:46:48,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97274 states to 97274 states and 130765 transitions. [2021-11-17 06:46:48,783 INFO L78 Accepts]: Start accepts. Automaton has 97274 states and 130765 transitions. Word has length 289 [2021-11-17 06:46:48,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 06:46:48,784 INFO L470 AbstractCegarLoop]: Abstraction has 97274 states and 130765 transitions. [2021-11-17 06:46:48,784 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-11-17 06:46:48,784 INFO L276 IsEmpty]: Start isEmpty. Operand 97274 states and 130765 transitions. [2021-11-17 06:46:48,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-11-17 06:46:48,791 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 06:46:48,791 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] [2021-11-17 06:46:48,791 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-17 06:46:48,791 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-17 06:46:48,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 06:46:48,792 INFO L85 PathProgramCache]: Analyzing trace with hash 258221885, now seen corresponding path program 1 times [2021-11-17 06:46:48,792 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 06:46:48,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743774766] [2021-11-17 06:46:48,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 06:46:48,793 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 06:46:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 06:46:49,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:49,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 06:46:49,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:49,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 06:46:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:49,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 06:46:49,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:49,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 06:46:49,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:49,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 06:46:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:49,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 06:46:49,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:49,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 06:46:49,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:49,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 06:46:49,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:49,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 06:46:49,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 06:46:49,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:49,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 06:46:49,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:49,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-11-17 06:46:49,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-11-17 06:46:49,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-11-17 06:46:49,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-11-17 06:46:49,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-11-17 06:46:49,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 06:46:49,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-11-17 06:46:49,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-11-17 06:46:49,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2021-11-17 06:46:49,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2021-11-17 06:46:49,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-11-17 06:46:49,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-11-17 06:46:49,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-11-17 06:46:49,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2021-11-17 06:46:49,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-11-17 06:46:49,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-17 06:46:49,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 06:46:49,710 INFO L134 CoverageAnalysis]: Checked inductivity of 1077 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1077 trivial. 0 not checked. [2021-11-17 06:46:49,711 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 06:46:49,711 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743774766] [2021-11-17 06:46:49,711 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743774766] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 06:46:49,711 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 06:46:49,711 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 06:46:49,711 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314934680] [2021-11-17 06:46:49,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 06:46:49,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 06:46:49,712 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 06:46:49,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 06:46:49,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-17 06:46:49,713 INFO L87 Difference]: Start difference. First operand 97274 states and 130765 transitions. Second operand has 6 states, 6 states have (on average 15.5) internal successors, (93), 5 states have internal predecessors, (93), 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) [2021-11-17 06:46:51,790 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:46:53,874 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 06:46:58,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 06:46:58,338 INFO L93 Difference]: Finished difference Result 196365 states and 265834 transitions. [2021-11-17 06:46:58,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-17 06:46:58,339 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.5) internal successors, (93), 5 states have internal predecessors, (93), 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) Word has length 290 [2021-11-17 06:46:58,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 06:46:58,873 INFO L225 Difference]: With dead ends: 196365 [2021-11-17 06:46:58,874 INFO L226 Difference]: Without dead ends: 99170 [2021-11-17 06:46:59,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-11-17 06:46:59,047 INFO L933 BasicCegarLoop]: 1819 mSDtfsCounter, 2761 mSDsluCounter, 2090 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 1579 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2761 SdHoareTripleChecker+Valid, 3909 SdHoareTripleChecker+Invalid, 2733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1579 IncrementalHoareTripleChecker+Valid, 1152 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-11-17 06:46:59,048 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2761 Valid, 3909 Invalid, 2733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1579 Valid, 1152 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2021-11-17 06:46:59,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99170 states.