./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ae007674 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-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.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 3ddf607d1745197f42ec93d91371fe3b581377117340b3a7d449f25d43cdec16 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 05:16:05,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 05:16:05,866 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 05:16:05,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 05:16:05,905 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 05:16:05,910 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 05:16:05,911 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 05:16:05,916 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 05:16:05,918 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 05:16:05,924 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 05:16:05,925 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 05:16:05,930 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 05:16:05,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 05:16:05,933 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 05:16:05,933 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 05:16:05,934 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 05:16:05,935 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 05:16:05,936 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 05:16:05,937 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 05:16:05,938 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 05:16:05,939 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 05:16:05,941 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 05:16:05,942 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 05:16:05,943 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 05:16:05,947 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 05:16:05,950 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 05:16:05,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 05:16:05,952 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 05:16:05,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 05:16:05,955 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 05:16:05,955 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 05:16:05,956 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 05:16:05,958 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 05:16:05,958 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 05:16:05,960 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 05:16:05,960 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 05:16:05,961 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 05:16:05,961 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 05:16:05,961 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 05:16:05,963 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 05:16:05,963 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 05:16:05,968 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 05:16:06,002 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 05:16:06,003 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 05:16:06,004 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 05:16:06,004 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 05:16:06,005 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 05:16:06,005 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 05:16:06,006 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 05:16:06,006 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 05:16:06,006 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 05:16:06,007 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 05:16:06,007 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 05:16:06,008 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 05:16:06,008 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 05:16:06,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 05:16:06,008 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 05:16:06,008 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 05:16:06,008 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 05:16:06,009 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 05:16:06,009 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 05:16:06,009 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 05:16:06,009 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 05:16:06,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 05:16:06,010 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 05:16:06,010 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 05:16:06,010 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 05:16:06,010 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 05:16:06,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 05:16:06,011 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 05:16:06,011 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 05:16:06,011 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 05:16:06,011 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ddf607d1745197f42ec93d91371fe3b581377117340b3a7d449f25d43cdec16 [2021-12-28 05:16:06,376 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 05:16:06,406 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 05:16:06,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 05:16:06,410 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 05:16:06,411 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 05:16:06,412 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i [2021-12-28 05:16:06,498 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/258afa6c0/c3bf650785af4bdba192c78d000c72f9/FLAG3459510a2 [2021-12-28 05:16:07,356 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 05:16:07,357 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i [2021-12-28 05:16:07,402 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/258afa6c0/c3bf650785af4bdba192c78d000c72f9/FLAG3459510a2 [2021-12-28 05:16:07,875 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/258afa6c0/c3bf650785af4bdba192c78d000c72f9 [2021-12-28 05:16:07,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 05:16:07,879 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 05:16:07,881 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 05:16:07,881 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 05:16:07,893 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 05:16:07,894 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:16:07" (1/1) ... [2021-12-28 05:16:07,895 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c1392a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:16:07, skipping insertion in model container [2021-12-28 05:16:07,895 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:16:07" (1/1) ... [2021-12-28 05:16:07,901 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 05:16:08,068 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 05:16:11,070 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-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[402050,402063] [2021-12-28 05:16:11,081 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-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[402195,402208] [2021-12-28 05:16:11,118 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 05:16:11,153 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 05:16:11,598 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-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[402050,402063] [2021-12-28 05:16:11,598 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-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i[402195,402208] [2021-12-28 05:16:11,604 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 05:16:11,879 INFO L208 MainTranslator]: Completed translation [2021-12-28 05:16:11,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:16:11 WrapperNode [2021-12-28 05:16:11,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 05:16:11,881 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 05:16:11,882 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 05:16:11,882 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 05:16:11,888 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:16:11" (1/1) ... [2021-12-28 05:16:12,048 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:16:11" (1/1) ... [2021-12-28 05:16:12,229 INFO L137 Inliner]: procedures = 547, calls = 2335, calls flagged for inlining = 258, calls inlined = 200, statements flattened = 4937 [2021-12-28 05:16:12,230 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 05:16:12,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 05:16:12,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 05:16:12,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 05:16:12,238 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:16:11" (1/1) ... [2021-12-28 05:16:12,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:16:11" (1/1) ... [2021-12-28 05:16:12,259 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:16:11" (1/1) ... [2021-12-28 05:16:12,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:16:11" (1/1) ... [2021-12-28 05:16:12,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:16:11" (1/1) ... [2021-12-28 05:16:12,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:16:11" (1/1) ... [2021-12-28 05:16:12,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:16:11" (1/1) ... [2021-12-28 05:16:12,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 05:16:12,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 05:16:12,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 05:16:12,463 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 05:16:12,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:16:11" (1/1) ... [2021-12-28 05:16:12,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 05:16:12,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 05:16:12,496 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-28 05:16:12,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-28 05:16:12,532 INFO L130 BoogieDeclarations]: Found specification of procedure get_page [2021-12-28 05:16:12,533 INFO L138 BoogieDeclarations]: Found implementation of procedure get_page [2021-12-28 05:16:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-28 05:16:12,533 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-28 05:16:12,533 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2021-12-28 05:16:12,533 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2021-12-28 05:16:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-12-28 05:16:12,534 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-12-28 05:16:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 05:16:12,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 05:16:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_rx_lock_of_netfront_info [2021-12-28 05:16:12,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_rx_lock_of_netfront_info [2021-12-28 05:16:12,534 INFO L130 BoogieDeclarations]: Found specification of procedure bind_evtchn_to_irqhandler [2021-12-28 05:16:12,535 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_evtchn_to_irqhandler [2021-12-28 05:16:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-28 05:16:12,535 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-28 05:16:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_interrupt [2021-12-28 05:16:12,535 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_interrupt [2021-12-28 05:16:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-28 05:16:12,535 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-28 05:16:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_grant_ring [2021-12-28 05:16:12,536 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_grant_ring [2021-12-28 05:16:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure free_percpu [2021-12-28 05:16:12,536 INFO L138 BoogieDeclarations]: Found implementation of procedure free_percpu [2021-12-28 05:16:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_claim_grant_reference [2021-12-28 05:16:12,536 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_claim_grant_reference [2021-12-28 05:16:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2021-12-28 05:16:12,537 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2021-12-28 05:16:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_disconnect_backend [2021-12-28 05:16:12,537 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_disconnect_backend [2021-12-28 05:16:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-28 05:16:12,537 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-28 05:16:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_alloc_grant_references [2021-12-28 05:16:12,537 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_alloc_grant_references [2021-12-28 05:16:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_release_grant_reference [2021-12-28 05:16:12,538 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_release_grant_reference [2021-12-28 05:16:12,538 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-28 05:16:12,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-28 05:16:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-28 05:16:12,539 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-28 05:16:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-28 05:16:12,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-28 05:16:12,539 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rxidx [2021-12-28 05:16:12,540 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rxidx [2021-12-28 05:16:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 05:16:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-28 05:16:12,540 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-28 05:16:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2021-12-28 05:16:12,540 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2021-12-28 05:16:12,540 INFO L130 BoogieDeclarations]: Found specification of procedure skb_entry_set_link [2021-12-28 05:16:12,541 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_entry_set_link [2021-12-28 05:16:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-28 05:16:12,541 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-28 05:16:12,541 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 05:16:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_free_grant_references [2021-12-28 05:16:12,542 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_free_grant_references [2021-12-28 05:16:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2021-12-28 05:16:12,543 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2021-12-28 05:16:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-12-28 05:16:12,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-12-28 05:16:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-28 05:16:12,544 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-28 05:16:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 05:16:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-28 05:16:12,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-28 05:16:12,544 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_poll_controller [2021-12-28 05:16:12,545 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_poll_controller [2021-12-28 05:16:12,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 05:16:12,545 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-28 05:16:12,545 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-28 05:16:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-28 05:16:12,546 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-28 05:16:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-28 05:16:12,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-28 05:16:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_124 [2021-12-28 05:16:12,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_124 [2021-12-28 05:16:12,546 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-28 05:16:12,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-28 05:16:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get [2021-12-28 05:16:12,547 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get [2021-12-28 05:16:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-28 05:16:12,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-28 05:16:12,547 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_ref [2021-12-28 05:16:12,547 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_ref [2021-12-28 05:16:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_netfront_info [2021-12-28 05:16:12,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_netfront_info [2021-12-28 05:16:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_uninit [2021-12-28 05:16:12,548 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_uninit [2021-12-28 05:16:12,548 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-12-28 05:16:12,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-12-28 05:16:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 05:16:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 05:16:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-28 05:16:12,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-28 05:16:12,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 05:16:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-12-28 05:16:12,550 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-12-28 05:16:12,550 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-12-28 05:16:12,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-12-28 05:16:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-12-28 05:16:12,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-12-28 05:16:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-12-28 05:16:12,551 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-12-28 05:16:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_grant_foreign_access_ref [2021-12-28 05:16:12,551 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_grant_foreign_access_ref [2021-12-28 05:16:12,551 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-28 05:16:12,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-28 05:16:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-28 05:16:12,552 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-28 05:16:12,552 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-28 05:16:12,552 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-28 05:16:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-12-28 05:16:12,553 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-12-28 05:16:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-28 05:16:12,553 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-28 05:16:12,553 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_skb [2021-12-28 05:16:12,554 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_skb [2021-12-28 05:16:12,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 05:16:12,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 05:16:12,556 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-28 05:16:12,557 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-28 05:16:12,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 05:16:12,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 05:16:12,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 05:16:12,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 05:16:12,559 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_release_tx_bufs [2021-12-28 05:16:12,559 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_release_tx_bufs [2021-12-28 05:16:12,564 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-12-28 05:16:12,564 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-12-28 05:16:12,564 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_write [2021-12-28 05:16:12,564 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_write [2021-12-28 05:16:12,564 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-28 05:16:12,564 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-28 05:16:12,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-28 05:16:12,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-28 05:16:12,565 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2021-12-28 05:16:12,565 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2021-12-28 05:16:12,565 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2021-12-28 05:16:12,565 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2021-12-28 05:16:12,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-28 05:16:12,565 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-28 05:16:12,565 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-28 05:16:12,566 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-28 05:16:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-12-28 05:16:12,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-12-28 05:16:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_alloc_evtchn [2021-12-28 05:16:12,566 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_alloc_evtchn [2021-12-28 05:16:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-28 05:16:12,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-28 05:16:12,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 05:16:12,567 INFO L130 BoogieDeclarations]: Found specification of procedure netfront_tx_slot_available [2021-12-28 05:16:12,567 INFO L138 BoogieDeclarations]: Found implementation of procedure netfront_tx_slot_available [2021-12-28 05:16:12,567 INFO L130 BoogieDeclarations]: Found specification of procedure notify_remote_via_irq [2021-12-28 05:16:12,567 INFO L138 BoogieDeclarations]: Found implementation of procedure notify_remote_via_irq [2021-12-28 05:16:12,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_tx_lock_of_netfront_info [2021-12-28 05:16:12,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_tx_lock_of_netfront_info [2021-12-28 05:16:12,567 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_can_sg [2021-12-28 05:16:12,567 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_can_sg [2021-12-28 05:16:12,568 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 05:16:12,568 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2021-12-28 05:16:12,568 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2021-12-28 05:16:12,568 INFO L130 BoogieDeclarations]: Found specification of procedure store_rxbuf_min [2021-12-28 05:16:12,568 INFO L138 BoogieDeclarations]: Found implementation of procedure store_rxbuf_min [2021-12-28 05:16:12,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_107 [2021-12-28 05:16:12,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_107 [2021-12-28 05:16:12,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 05:16:12,569 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-12-28 05:16:12,569 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-12-28 05:16:12,569 INFO L130 BoogieDeclarations]: Found specification of procedure add_id_to_freelist [2021-12-28 05:16:12,569 INFO L138 BoogieDeclarations]: Found implementation of procedure add_id_to_freelist [2021-12-28 05:16:12,569 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_alloc_rx_buffers [2021-12-28 05:16:12,569 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_alloc_rx_buffers [2021-12-28 05:16:12,569 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-28 05:16:12,570 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-28 05:16:12,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-28 05:16:12,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-28 05:16:12,570 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2021-12-28 05:16:12,570 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2021-12-28 05:16:12,570 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access_ref [2021-12-28 05:16:12,571 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access_ref [2021-12-28 05:16:12,571 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-28 05:16:12,571 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-28 05:16:12,571 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_104 [2021-12-28 05:16:12,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_104 [2021-12-28 05:16:12,571 INFO L130 BoogieDeclarations]: Found specification of procedure unbind_from_irqhandler [2021-12-28 05:16:12,571 INFO L138 BoogieDeclarations]: Found implementation of procedure unbind_from_irqhandler [2021-12-28 05:16:12,571 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2021-12-28 05:16:12,572 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2021-12-28 05:16:12,572 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2021-12-28 05:16:12,572 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2021-12-28 05:16:12,572 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-28 05:16:12,573 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-28 05:16:12,573 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-28 05:16:12,573 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-28 05:16:12,573 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-12-28 05:16:12,574 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-12-28 05:16:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_end_access [2021-12-28 05:16:12,574 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_end_access [2021-12-28 05:16:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-28 05:16:12,574 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-28 05:16:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 05:16:12,574 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 05:16:12,574 INFO L130 BoogieDeclarations]: Found specification of procedure skb_add_rx_frag [2021-12-28 05:16:12,574 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_add_rx_frag [2021-12-28 05:16:12,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 05:16:12,575 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-12-28 05:16:12,575 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-12-28 05:16:12,575 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 05:16:12,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 05:16:12,575 INFO L130 BoogieDeclarations]: Found specification of procedure get_id_from_freelist [2021-12-28 05:16:12,575 INFO L138 BoogieDeclarations]: Found implementation of procedure get_id_from_freelist [2021-12-28 05:16:12,576 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-28 05:16:12,576 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-28 05:16:12,576 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rx_interrupt [2021-12-28 05:16:12,576 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rx_interrupt [2021-12-28 05:16:12,576 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_rx_lock_of_netfront_info [2021-12-28 05:16:12,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_rx_lock_of_netfront_info [2021-12-28 05:16:12,576 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-28 05:16:12,576 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-28 05:16:12,577 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2021-12-28 05:16:12,577 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2021-12-28 05:16:12,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_105 [2021-12-28 05:16:12,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_105 [2021-12-28 05:16:12,577 INFO L130 BoogieDeclarations]: Found specification of procedure store_rxbuf_max [2021-12-28 05:16:12,577 INFO L138 BoogieDeclarations]: Found implementation of procedure store_rxbuf_max [2021-12-28 05:16:12,577 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-28 05:16:12,577 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-28 05:16:12,578 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-12-28 05:16:12,578 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-12-28 05:16:12,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-28 05:16:12,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-28 05:16:12,578 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_interrupt [2021-12-28 05:16:12,578 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_interrupt [2021-12-28 05:16:12,578 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_123 [2021-12-28 05:16:12,578 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_123 [2021-12-28 05:16:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 05:16:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-28 05:16:12,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-28 05:16:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-12-28 05:16:12,579 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-12-28 05:16:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2021-12-28 05:16:12,579 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2021-12-28 05:16:12,579 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_free_evtchn [2021-12-28 05:16:12,580 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_free_evtchn [2021-12-28 05:16:12,581 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_buf_gc [2021-12-28 05:16:12,583 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_buf_gc [2021-12-28 05:16:13,494 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 05:16:13,499 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 05:16:13,674 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 05:16:20,050 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 05:16:20,072 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 05:16:20,073 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 05:16:20,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:16:20 BoogieIcfgContainer [2021-12-28 05:16:20,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 05:16:20,079 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 05:16:20,079 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 05:16:20,081 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 05:16:20,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 05:16:07" (1/3) ... [2021-12-28 05:16:20,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42a92376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:16:20, skipping insertion in model container [2021-12-28 05:16:20,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:16:11" (2/3) ... [2021-12-28 05:16:20,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42a92376 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:16:20, skipping insertion in model container [2021-12-28 05:16:20,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:16:20" (3/3) ... [2021-12-28 05:16:20,084 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i [2021-12-28 05:16:20,088 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 05:16:20,088 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 05:16:20,141 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 05:16:20,149 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 05:16:20,150 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 05:16:20,198 INFO L276 IsEmpty]: Start isEmpty. Operand has 1683 states, 1140 states have (on average 1.2526315789473683) internal successors, (1428), 1179 states have internal predecessors, (1428), 427 states have call successors, (427), 115 states have call predecessors, (427), 114 states have return successors, (423), 420 states have call predecessors, (423), 423 states have call successors, (423) [2021-12-28 05:16:20,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-28 05:16:20,225 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:16:20,226 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-28 05:16:20,227 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 05:16:20,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:16:20,232 INFO L85 PathProgramCache]: Analyzing trace with hash 51079051, now seen corresponding path program 1 times [2021-12-28 05:16:20,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:16:20,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968510585] [2021-12-28 05:16:20,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:16:20,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:16:20,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:20,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:16:20,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:20,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:16:20,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:20,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 05:16:20,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:20,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 05:16:20,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:20,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-28 05:16:20,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:20,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 05:16:20,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:20,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:16:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:20,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:16:20,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:20,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:16:20,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:20,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 05:16:20,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:20,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-28 05:16:20,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:20,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:16:20,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:20,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:16:20,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:21,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:16:21,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:21,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 05:16:21,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:21,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-28 05:16:21,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:21,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:16:21,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:21,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:16:21,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:21,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:16:21,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:21,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-28 05:16:21,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:21,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-28 05:16:21,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:21,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:16:21,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:21,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:16:21,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:21,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:16:21,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:21,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-28 05:16:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:21,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-28 05:16:21,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:21,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-28 05:16:21,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:21,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-28 05:16:21,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:21,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:16:21,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:21,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-28 05:16:21,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:21,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:16:21,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:21,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-28 05:16:21,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:21,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-28 05:16:21,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:21,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:16:21,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:21,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-28 05:16:21,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:21,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-28 05:16:21,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:21,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-28 05:16:21,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:21,318 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2021-12-28 05:16:21,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:16:21,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968510585] [2021-12-28 05:16:21,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968510585] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:16:21,321 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:16:21,321 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:16:21,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230501752] [2021-12-28 05:16:21,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:16:21,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:16:21,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:16:21,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:16:21,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:16:21,361 INFO L87 Difference]: Start difference. First operand has 1683 states, 1140 states have (on average 1.2526315789473683) internal successors, (1428), 1179 states have internal predecessors, (1428), 427 states have call successors, (427), 115 states have call predecessors, (427), 114 states have return successors, (423), 420 states have call predecessors, (423), 423 states have call successors, (423) Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-28 05:16:24,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 05:16:27,371 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 05:16:29,468 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 05:16:31,563 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 05:16:33,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:16:33,283 INFO L93 Difference]: Finished difference Result 3418 states and 4673 transitions. [2021-12-28 05:16:33,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 05:16:33,285 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) Word has length 227 [2021-12-28 05:16:33,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:16:33,324 INFO L225 Difference]: With dead ends: 3418 [2021-12-28 05:16:33,324 INFO L226 Difference]: Without dead ends: 1724 [2021-12-28 05:16:33,339 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-28 05:16:33,342 INFO L933 BasicCegarLoop]: 2078 mSDtfsCounter, 1193 mSDsluCounter, 2656 mSDsCounter, 0 mSdLazyCounter, 2159 mSolverCounterSat, 1167 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1261 SdHoareTripleChecker+Valid, 4734 SdHoareTripleChecker+Invalid, 3330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1167 IncrementalHoareTripleChecker+Valid, 2159 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2021-12-28 05:16:33,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1261 Valid, 4734 Invalid, 3330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1167 Valid, 2159 Invalid, 4 Unknown, 0 Unchecked, 11.6s Time] [2021-12-28 05:16:33,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1724 states. [2021-12-28 05:16:33,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1724 to 1642. [2021-12-28 05:16:33,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1642 states, 1124 states have (on average 1.23932384341637) internal successors, (1393), 1159 states have internal predecessors, (1393), 404 states have call successors, (404), 113 states have call predecessors, (404), 113 states have return successors, (404), 401 states have call predecessors, (404), 404 states have call successors, (404) [2021-12-28 05:16:33,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 2201 transitions. [2021-12-28 05:16:33,508 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 2201 transitions. Word has length 227 [2021-12-28 05:16:33,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:16:33,511 INFO L470 AbstractCegarLoop]: Abstraction has 1642 states and 2201 transitions. [2021-12-28 05:16:33,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-28 05:16:33,512 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 2201 transitions. [2021-12-28 05:16:33,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-12-28 05:16:33,521 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:16:33,522 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 05:16:33,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 05:16:33,524 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 05:16:33,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:16:33,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1148756917, now seen corresponding path program 1 times [2021-12-28 05:16:33,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:16:33,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92252180] [2021-12-28 05:16:33,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:16:33,527 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:16:33,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:33,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:16:33,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:33,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:16:33,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:33,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 05:16:33,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:33,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 05:16:33,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:33,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-28 05:16:33,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:33,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 05:16:33,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:33,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:16:33,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:33,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:16:33,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:33,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:16:33,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:33,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 05:16:33,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:33,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 05:16:33,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:33,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:16:33,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:33,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:16:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:33,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:16:33,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:33,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 05:16:33,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:33,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-28 05:16:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:33,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:16:33,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:33,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:16:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:33,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:16:33,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:33,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-28 05:16:33,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:33,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-28 05:16:33,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:33,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-28 05:16:33,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:33,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-28 05:16:33,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:33,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:16:33,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:33,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-28 05:16:33,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:33,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:16:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:33,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-28 05:16:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:34,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-28 05:16:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:34,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:16:34,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:34,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-28 05:16:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:34,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-28 05:16:34,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:34,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-28 05:16:34,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:34,045 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2021-12-28 05:16:34,046 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:16:34,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92252180] [2021-12-28 05:16:34,046 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92252180] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:16:34,046 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:16:34,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:16:34,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358469677] [2021-12-28 05:16:34,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:16:34,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:16:34,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:16:34,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:16:34,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:16:34,049 INFO L87 Difference]: Start difference. First operand 1642 states and 2201 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2021-12-28 05:16:36,651 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 05:16:38,746 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 05:16:41,843 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 05:16:43,931 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 05:16:45,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:16:45,935 INFO L93 Difference]: Finished difference Result 2129 states and 2855 transitions. [2021-12-28 05:16:45,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 05:16:45,936 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) Word has length 201 [2021-12-28 05:16:45,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:16:45,949 INFO L225 Difference]: With dead ends: 2129 [2021-12-28 05:16:45,950 INFO L226 Difference]: Without dead ends: 1722 [2021-12-28 05:16:45,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-28 05:16:45,955 INFO L933 BasicCegarLoop]: 2034 mSDtfsCounter, 1192 mSDsluCounter, 2598 mSDsCounter, 0 mSdLazyCounter, 2091 mSolverCounterSat, 1091 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 4632 SdHoareTripleChecker+Invalid, 3186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1091 IncrementalHoareTripleChecker+Valid, 2091 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2021-12-28 05:16:45,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1263 Valid, 4632 Invalid, 3186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1091 Valid, 2091 Invalid, 4 Unknown, 0 Unchecked, 11.7s Time] [2021-12-28 05:16:45,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2021-12-28 05:16:46,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1642. [2021-12-28 05:16:46,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1642 states, 1124 states have (on average 1.2384341637010676) internal successors, (1392), 1159 states have internal predecessors, (1392), 404 states have call successors, (404), 113 states have call predecessors, (404), 113 states have return successors, (404), 401 states have call predecessors, (404), 404 states have call successors, (404) [2021-12-28 05:16:46,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 2200 transitions. [2021-12-28 05:16:46,026 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 2200 transitions. Word has length 201 [2021-12-28 05:16:46,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:16:46,028 INFO L470 AbstractCegarLoop]: Abstraction has 1642 states and 2200 transitions. [2021-12-28 05:16:46,029 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 3 states have internal predecessors, (90), 3 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (26), 2 states have call predecessors, (26), 3 states have call successors, (26) [2021-12-28 05:16:46,029 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 2200 transitions. [2021-12-28 05:16:46,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-28 05:16:46,033 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:16:46,033 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-28 05:16:46,034 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 05:16:46,034 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 05:16:46,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:16:46,034 INFO L85 PathProgramCache]: Analyzing trace with hash 24013449, now seen corresponding path program 1 times [2021-12-28 05:16:46,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:16:46,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788834599] [2021-12-28 05:16:46,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:16:46,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:16:46,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:16:46,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:16:46,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 05:16:46,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 05:16:46,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-28 05:16:46,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 05:16:46,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:16:46,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:16:46,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:16:46,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 05:16:46,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-28 05:16:46,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:16:46,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:16:46,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:16:46,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 05:16:46,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-28 05:16:46,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:16:46,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:16:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:16:46,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-28 05:16:46,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-28 05:16:46,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:16:46,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:16:46,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:16:46,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-28 05:16:46,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-28 05:16:46,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-28 05:16:46,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-28 05:16:46,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:16:46,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-28 05:16:46,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:16:46,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-28 05:16:46,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-28 05:16:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:16:46,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-28 05:16:46,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-28 05:16:46,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-28 05:16:46,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:46,572 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2021-12-28 05:16:46,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:16:46,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788834599] [2021-12-28 05:16:46,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788834599] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:16:46,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:16:46,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 05:16:46,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893685112] [2021-12-28 05:16:46,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:16:46,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 05:16:46,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:16:46,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 05:16:46,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 05:16:46,576 INFO L87 Difference]: Start difference. First operand 1642 states and 2200 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-28 05:16:49,164 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 05:16:52,215 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 05:16:54,308 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 05:16:56,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 05:16:58,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:16:58,232 INFO L93 Difference]: Finished difference Result 2129 states and 2853 transitions. [2021-12-28 05:16:58,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 05:16:58,233 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) Word has length 227 [2021-12-28 05:16:58,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:16:58,243 INFO L225 Difference]: With dead ends: 2129 [2021-12-28 05:16:58,243 INFO L226 Difference]: Without dead ends: 1722 [2021-12-28 05:16:58,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-28 05:16:58,247 INFO L933 BasicCegarLoop]: 2033 mSDtfsCounter, 1191 mSDsluCounter, 2596 mSDsCounter, 0 mSdLazyCounter, 2092 mSolverCounterSat, 1090 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1262 SdHoareTripleChecker+Valid, 4629 SdHoareTripleChecker+Invalid, 3186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1090 IncrementalHoareTripleChecker+Valid, 2092 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2021-12-28 05:16:58,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1262 Valid, 4629 Invalid, 3186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1090 Valid, 2092 Invalid, 4 Unknown, 0 Unchecked, 11.5s Time] [2021-12-28 05:16:58,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2021-12-28 05:16:58,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1642. [2021-12-28 05:16:58,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1642 states, 1124 states have (on average 1.2375444839857652) internal successors, (1391), 1159 states have internal predecessors, (1391), 404 states have call successors, (404), 113 states have call predecessors, (404), 113 states have return successors, (404), 401 states have call predecessors, (404), 404 states have call successors, (404) [2021-12-28 05:16:58,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 2199 transitions. [2021-12-28 05:16:58,302 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 2199 transitions. Word has length 227 [2021-12-28 05:16:58,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:16:58,303 INFO L470 AbstractCegarLoop]: Abstraction has 1642 states and 2199 transitions. [2021-12-28 05:16:58,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (28), 2 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-28 05:16:58,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 2199 transitions. [2021-12-28 05:16:58,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-28 05:16:58,337 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:16:58,337 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2021-12-28 05:16:58,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 05:16:58,338 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 05:16:58,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:16:58,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1192140277, now seen corresponding path program 1 times [2021-12-28 05:16:58,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:16:58,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388096768] [2021-12-28 05:16:58,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:16:58,340 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:16:58,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:16:58,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:16:58,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-28 05:16:58,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-28 05:16:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-28 05:16:58,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 05:16:58,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:16:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:16:58,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:16:58,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 05:16:58,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-28 05:16:58,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:16:58,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:16:58,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:16:58,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-28 05:16:58,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-28 05:16:58,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:16:58,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:16:58,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:16:58,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-28 05:16:58,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-28 05:16:58,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:16:58,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 05:16:58,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-28 05:16:58,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-28 05:16:58,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-28 05:16:58,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-28 05:16:58,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-28 05:16:58,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:16:58,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-28 05:16:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 05:16:58,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-28 05:16:58,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-28 05:16:58,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:16:58,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-28 05:16:58,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-28 05:16:58,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-28 05:16:58,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:16:58,830 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2021-12-28 05:16:58,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:16:58,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388096768] [2021-12-28 05:16:58,831 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388096768] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:16:58,831 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:16:58,831 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-28 05:16:58,831 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193133246] [2021-12-28 05:16:58,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:16:58,832 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-28 05:16:58,832 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:16:58,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-28 05:16:58,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-28 05:16:58,833 INFO L87 Difference]: Start difference. First operand 1642 states and 2199 transitions. Second operand has 8 states, 7 states have (on average 13.142857142857142) internal successors, (92), 5 states have internal predecessors, (92), 4 states have call successors, (31), 4 states have call predecessors, (31), 2 states have return successors, (28), 3 states have call predecessors, (28), 4 states have call successors, (28) [2021-12-28 05:17:01,675 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 05:17:03,758 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 05:17:05,845 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 05:17:07,927 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []