./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 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-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 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 19:03:51,003 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 19:03:51,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 19:03:51,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 19:03:51,039 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 19:03:51,044 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 19:03:51,046 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 19:03:51,050 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 19:03:51,052 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 19:03:51,053 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 19:03:51,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 19:03:51,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 19:03:51,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 19:03:51,065 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 19:03:51,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 19:03:51,071 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 19:03:51,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 19:03:51,078 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 19:03:51,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 19:03:51,082 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 19:03:51,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 19:03:51,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 19:03:51,089 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 19:03:51,091 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 19:03:51,095 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 19:03:51,098 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 19:03:51,098 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 19:03:51,100 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 19:03:51,101 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 19:03:51,102 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 19:03:51,103 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 19:03:51,104 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 19:03:51,105 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 19:03:51,106 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 19:03:51,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 19:03:51,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 19:03:51,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 19:03:51,109 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 19:03:51,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 19:03:51,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 19:03:51,110 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 19:03:51,111 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 19:03:51,143 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 19:03:51,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 19:03:51,144 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 19:03:51,145 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 19:03:51,146 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 19:03:51,146 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 19:03:51,147 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 19:03:51,147 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 19:03:51,147 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 19:03:51,147 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 19:03:51,147 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 19:03:51,148 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 19:03:51,148 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 19:03:51,148 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 19:03:51,151 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 19:03:51,152 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 19:03:51,152 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 19:03:51,152 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 19:03:51,152 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 19:03:51,152 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 19:03:51,153 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 19:03:51,153 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 19:03:51,153 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 19:03:51,153 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 19:03:51,153 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 19:03:51,154 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 19:03:51,154 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 19:03:51,154 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 19:03:51,154 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 19:03:51,154 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 19:03:51,155 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 19:03:51,155 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ddf607d1745197f42ec93d91371fe3b581377117340b3a7d449f25d43cdec16 [2021-12-14 19:03:51,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 19:03:51,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 19:03:51,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 19:03:51,457 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 19:03:51,457 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 19:03:51,459 INFO L432 ainManager$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 [2021-12-14 19:03:51,535 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2cdafb6d/b56a66c0ce59496f9a7448bd62cd9d89/FLAGc72455549 [2021-12-14 19:03:52,305 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 19:03:52,306 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 [2021-12-14 19:03:52,359 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2cdafb6d/b56a66c0ce59496f9a7448bd62cd9d89/FLAGc72455549 [2021-12-14 19:03:52,844 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2cdafb6d/b56a66c0ce59496f9a7448bd62cd9d89 [2021-12-14 19:03:52,847 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 19:03:52,849 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 19:03:52,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 19:03:52,858 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 19:03:52,866 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 19:03:52,867 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:03:52" (1/1) ... [2021-12-14 19:03:52,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@386cf852 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:03:52, skipping insertion in model container [2021-12-14 19:03:52,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 07:03:52" (1/1) ... [2021-12-14 19:03:52,878 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 19:03:52,999 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 19:03:56,609 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] [2021-12-14 19:03:56,613 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] [2021-12-14 19:03:56,639 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 19:03:56,664 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 19:03:57,045 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] [2021-12-14 19:03:57,046 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] [2021-12-14 19:03:57,053 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 19:03:57,266 INFO L208 MainTranslator]: Completed translation [2021-12-14 19:03:57,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:03:57 WrapperNode [2021-12-14 19:03:57,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 19:03:57,268 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 19:03:57,268 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 19:03:57,269 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 19:03:57,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:03:57" (1/1) ... [2021-12-14 19:03:57,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:03:57" (1/1) ... [2021-12-14 19:03:57,595 INFO L137 Inliner]: procedures = 547, calls = 2335, calls flagged for inlining = 258, calls inlined = 200, statements flattened = 4937 [2021-12-14 19:03:57,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 19:03:57,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 19:03:57,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 19:03:57,597 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 19:03:57,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:03:57" (1/1) ... [2021-12-14 19:03:57,605 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:03:57" (1/1) ... [2021-12-14 19:03:57,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:03:57" (1/1) ... [2021-12-14 19:03:57,627 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:03:57" (1/1) ... [2021-12-14 19:03:57,750 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:03:57" (1/1) ... [2021-12-14 19:03:57,775 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:03:57" (1/1) ... [2021-12-14 19:03:57,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:03:57" (1/1) ... [2021-12-14 19:03:57,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 19:03:57,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 19:03:57,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 19:03:57,849 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 19:03:57,850 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:03:57" (1/1) ... [2021-12-14 19:03:57,857 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 19:03:57,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 19:03:57,889 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 19:03:57,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 19:03:57,926 INFO L130 BoogieDeclarations]: Found specification of procedure get_page [2021-12-14 19:03:57,927 INFO L138 BoogieDeclarations]: Found implementation of procedure get_page [2021-12-14 19:03:57,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-14 19:03:57,927 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-14 19:03:57,927 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2021-12-14 19:03:57,927 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2021-12-14 19:03:57,928 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2021-12-14 19:03:57,928 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2021-12-14 19:03:57,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 19:03:57,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 19:03:57,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_rx_lock_of_netfront_info [2021-12-14 19:03:57,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_rx_lock_of_netfront_info [2021-12-14 19:03:57,928 INFO L130 BoogieDeclarations]: Found specification of procedure bind_evtchn_to_irqhandler [2021-12-14 19:03:57,929 INFO L138 BoogieDeclarations]: Found implementation of procedure bind_evtchn_to_irqhandler [2021-12-14 19:03:57,929 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-14 19:03:57,929 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-14 19:03:57,929 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_interrupt [2021-12-14 19:03:57,929 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_interrupt [2021-12-14 19:03:57,929 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-14 19:03:57,929 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-14 19:03:57,930 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_grant_ring [2021-12-14 19:03:57,930 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_grant_ring [2021-12-14 19:03:57,930 INFO L130 BoogieDeclarations]: Found specification of procedure free_percpu [2021-12-14 19:03:57,930 INFO L138 BoogieDeclarations]: Found implementation of procedure free_percpu [2021-12-14 19:03:57,930 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_claim_grant_reference [2021-12-14 19:03:57,930 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_claim_grant_reference [2021-12-14 19:03:57,930 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access [2021-12-14 19:03:57,931 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access [2021-12-14 19:03:57,931 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_disconnect_backend [2021-12-14 19:03:57,931 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_disconnect_backend [2021-12-14 19:03:57,931 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-14 19:03:57,931 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-14 19:03:57,931 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_alloc_grant_references [2021-12-14 19:03:57,931 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_alloc_grant_references [2021-12-14 19:03:57,931 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_release_grant_reference [2021-12-14 19:03:57,932 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_release_grant_reference [2021-12-14 19:03:57,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-14 19:03:57,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-14 19:03:57,932 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-14 19:03:57,933 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-14 19:03:57,933 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-14 19:03:57,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-14 19:03:57,933 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rxidx [2021-12-14 19:03:57,933 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rxidx [2021-12-14 19:03:57,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 19:03:57,933 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-14 19:03:57,934 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-14 19:03:57,934 INFO L130 BoogieDeclarations]: Found specification of procedure pfn_to_mfn [2021-12-14 19:03:57,934 INFO L138 BoogieDeclarations]: Found implementation of procedure pfn_to_mfn [2021-12-14 19:03:57,934 INFO L130 BoogieDeclarations]: Found specification of procedure skb_entry_set_link [2021-12-14 19:03:57,934 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_entry_set_link [2021-12-14 19:03:57,935 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-14 19:03:57,935 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-14 19:03:57,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 19:03:57,935 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_free_grant_references [2021-12-14 19:03:57,936 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_free_grant_references [2021-12-14 19:03:57,936 INFO L130 BoogieDeclarations]: Found specification of procedure simple_strtoul [2021-12-14 19:03:57,937 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_strtoul [2021-12-14 19:03:57,937 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-12-14 19:03:57,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-12-14 19:03:57,937 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-14 19:03:57,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-14 19:03:57,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 19:03:57,938 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-14 19:03:57,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-14 19:03:57,938 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_poll_controller [2021-12-14 19:03:57,938 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_poll_controller [2021-12-14 19:03:57,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 19:03:57,938 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-14 19:03:57,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-14 19:03:57,939 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 19:03:57,939 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 19:03:57,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-14 19:03:57,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-14 19:03:57,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_124 [2021-12-14 19:03:57,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_124 [2021-12-14 19:03:57,940 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-14 19:03:57,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-14 19:03:57,941 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get [2021-12-14 19:03:57,941 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get [2021-12-14 19:03:57,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-14 19:03:57,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-14 19:03:57,941 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_ref [2021-12-14 19:03:57,941 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_ref [2021-12-14 19:03:57,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_tx_lock_of_netfront_info [2021-12-14 19:03:57,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_tx_lock_of_netfront_info [2021-12-14 19:03:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_uninit [2021-12-14 19:03:57,942 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_uninit [2021-12-14 19:03:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_dequeue [2021-12-14 19:03:57,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_dequeue [2021-12-14 19:03:57,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 19:03:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 19:03:57,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-14 19:03:57,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-14 19:03:57,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 19:03:57,944 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-12-14 19:03:57,944 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-12-14 19:03:57,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-12-14 19:03:57,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-12-14 19:03:57,944 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-12-14 19:03:57,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-12-14 19:03:57,945 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-12-14 19:03:57,945 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-12-14 19:03:57,945 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_grant_foreign_access_ref [2021-12-14 19:03:57,945 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_grant_foreign_access_ref [2021-12-14 19:03:57,945 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-14 19:03:57,945 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-14 19:03:57,945 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-14 19:03:57,946 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-14 19:03:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-14 19:03:57,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-14 19:03:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-12-14 19:03:57,946 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-12-14 19:03:57,946 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-14 19:03:57,947 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-14 19:03:57,947 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_get_rx_skb [2021-12-14 19:03:57,948 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_get_rx_skb [2021-12-14 19:03:57,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 19:03:57,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 19:03:57,950 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-14 19:03:57,951 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-14 19:03:57,952 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 19:03:57,953 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 19:03:57,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 19:03:57,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 19:03:57,954 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_release_tx_bufs [2021-12-14 19:03:57,959 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_release_tx_bufs [2021-12-14 19:03:57,959 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2021-12-14 19:03:57,959 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2021-12-14 19:03:57,959 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_write [2021-12-14 19:03:57,959 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_write [2021-12-14 19:03:57,960 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-14 19:03:57,960 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-14 19:03:57,960 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-14 19:03:57,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-14 19:03:57,960 INFO L130 BoogieDeclarations]: Found specification of procedure u64_stats_update_begin [2021-12-14 19:03:57,960 INFO L138 BoogieDeclarations]: Found implementation of procedure u64_stats_update_begin [2021-12-14 19:03:57,961 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_transaction_end [2021-12-14 19:03:57,961 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_transaction_end [2021-12-14 19:03:57,961 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 19:03:57,961 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 19:03:57,961 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-14 19:03:57,961 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-14 19:03:57,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-12-14 19:03:57,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-12-14 19:03:57,962 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_alloc_evtchn [2021-12-14 19:03:57,962 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_alloc_evtchn [2021-12-14 19:03:57,962 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-14 19:03:57,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-14 19:03:57,962 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 19:03:57,962 INFO L130 BoogieDeclarations]: Found specification of procedure netfront_tx_slot_available [2021-12-14 19:03:57,962 INFO L138 BoogieDeclarations]: Found implementation of procedure netfront_tx_slot_available [2021-12-14 19:03:57,963 INFO L130 BoogieDeclarations]: Found specification of procedure notify_remote_via_irq [2021-12-14 19:03:57,963 INFO L138 BoogieDeclarations]: Found implementation of procedure notify_remote_via_irq [2021-12-14 19:03:57,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_tx_lock_of_netfront_info [2021-12-14 19:03:57,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_tx_lock_of_netfront_info [2021-12-14 19:03:57,963 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_can_sg [2021-12-14 19:03:57,963 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_can_sg [2021-12-14 19:03:57,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 19:03:57,964 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_queue_tail [2021-12-14 19:03:57,964 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_queue_tail [2021-12-14 19:03:57,964 INFO L130 BoogieDeclarations]: Found specification of procedure store_rxbuf_min [2021-12-14 19:03:57,964 INFO L138 BoogieDeclarations]: Found implementation of procedure store_rxbuf_min [2021-12-14 19:03:57,964 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_107 [2021-12-14 19:03:57,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_107 [2021-12-14 19:03:57,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 19:03:57,964 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-12-14 19:03:57,965 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-12-14 19:03:57,965 INFO L130 BoogieDeclarations]: Found specification of procedure add_id_to_freelist [2021-12-14 19:03:57,965 INFO L138 BoogieDeclarations]: Found implementation of procedure add_id_to_freelist [2021-12-14 19:03:57,965 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_alloc_rx_buffers [2021-12-14 19:03:57,965 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_alloc_rx_buffers [2021-12-14 19:03:57,965 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-14 19:03:57,965 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-14 19:03:57,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-14 19:03:57,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-14 19:03:57,966 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2021-12-14 19:03:57,966 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2021-12-14 19:03:57,966 INFO L130 BoogieDeclarations]: Found specification of procedure gnttab_end_foreign_access_ref [2021-12-14 19:03:57,966 INFO L138 BoogieDeclarations]: Found implementation of procedure gnttab_end_foreign_access_ref [2021-12-14 19:03:57,966 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2021-12-14 19:03:57,966 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2021-12-14 19:03:57,966 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_104 [2021-12-14 19:03:57,967 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_104 [2021-12-14 19:03:57,967 INFO L130 BoogieDeclarations]: Found specification of procedure unbind_from_irqhandler [2021-12-14 19:03:57,967 INFO L138 BoogieDeclarations]: Found implementation of procedure unbind_from_irqhandler [2021-12-14 19:03:57,967 INFO L130 BoogieDeclarations]: Found specification of procedure get_zeroed_page [2021-12-14 19:03:57,967 INFO L138 BoogieDeclarations]: Found implementation of procedure get_zeroed_page [2021-12-14 19:03:57,968 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_insert [2021-12-14 19:03:57,968 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_insert [2021-12-14 19:03:57,968 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-14 19:03:57,968 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-14 19:03:57,968 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-14 19:03:57,968 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-14 19:03:57,968 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_page [2021-12-14 19:03:57,969 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_page [2021-12-14 19:03:57,969 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_end_access [2021-12-14 19:03:57,969 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_end_access [2021-12-14 19:03:57,969 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-14 19:03:57,969 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-14 19:03:57,969 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 19:03:57,969 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 19:03:57,969 INFO L130 BoogieDeclarations]: Found specification of procedure skb_add_rx_frag [2021-12-14 19:03:57,970 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_add_rx_frag [2021-12-14 19:03:57,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 19:03:57,970 INFO L130 BoogieDeclarations]: Found specification of procedure net_ratelimit [2021-12-14 19:03:57,970 INFO L138 BoogieDeclarations]: Found implementation of procedure net_ratelimit [2021-12-14 19:03:57,970 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 19:03:57,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 19:03:57,970 INFO L130 BoogieDeclarations]: Found specification of procedure get_id_from_freelist [2021-12-14 19:03:57,970 INFO L138 BoogieDeclarations]: Found implementation of procedure get_id_from_freelist [2021-12-14 19:03:57,971 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-14 19:03:57,971 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-14 19:03:57,971 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_rx_interrupt [2021-12-14 19:03:57,971 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_rx_interrupt [2021-12-14 19:03:57,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_rx_lock_of_netfront_info [2021-12-14 19:03:57,971 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_rx_lock_of_netfront_info [2021-12-14 19:03:57,971 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-14 19:03:57,971 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-14 19:03:57,972 INFO L130 BoogieDeclarations]: Found specification of procedure cpumask_next [2021-12-14 19:03:57,972 INFO L138 BoogieDeclarations]: Found implementation of procedure cpumask_next [2021-12-14 19:03:57,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_105 [2021-12-14 19:03:57,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_105 [2021-12-14 19:03:57,972 INFO L130 BoogieDeclarations]: Found specification of procedure store_rxbuf_max [2021-12-14 19:03:57,972 INFO L138 BoogieDeclarations]: Found implementation of procedure store_rxbuf_max [2021-12-14 19:03:57,972 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-14 19:03:57,973 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-14 19:03:57,973 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2021-12-14 19:03:57,973 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2021-12-14 19:03:57,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-14 19:03:57,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-14 19:03:57,973 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_interrupt [2021-12-14 19:03:57,973 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_interrupt [2021-12-14 19:03:57,973 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_123 [2021-12-14 19:03:57,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_123 [2021-12-14 19:03:57,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 19:03:57,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-14 19:03:57,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-14 19:03:57,974 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-12-14 19:03:57,974 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-12-14 19:03:57,974 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2021-12-14 19:03:57,975 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2021-12-14 19:03:57,975 INFO L130 BoogieDeclarations]: Found specification of procedure xenbus_free_evtchn [2021-12-14 19:03:57,976 INFO L138 BoogieDeclarations]: Found implementation of procedure xenbus_free_evtchn [2021-12-14 19:03:57,979 INFO L130 BoogieDeclarations]: Found specification of procedure xennet_tx_buf_gc [2021-12-14 19:03:57,979 INFO L138 BoogieDeclarations]: Found implementation of procedure xennet_tx_buf_gc [2021-12-14 19:03:58,832 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 19:03:58,841 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 19:03:59,049 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 19:04:05,496 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 19:04:05,521 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 19:04:05,521 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 19:04:05,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:04:05 BoogieIcfgContainer [2021-12-14 19:04:05,527 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 19:04:05,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 19:04:05,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 19:04:05,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 19:04:05,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 07:03:52" (1/3) ... [2021-12-14 19:04:05,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ad9e5c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:04:05, skipping insertion in model container [2021-12-14 19:04:05,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 07:03:57" (2/3) ... [2021-12-14 19:04:05,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ad9e5c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 07:04:05, skipping insertion in model container [2021-12-14 19:04:05,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 07:04:05" (3/3) ... [2021-12-14 19:04:05,536 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-xen-netfront.cil.i [2021-12-14 19:04:05,541 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 19:04:05,541 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 19:04:05,603 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 19:04:05,610 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 19:04:05,610 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 19:04:05,659 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) [2021-12-14 19:04:05,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-14 19:04:05,690 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:04:05,691 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] [2021-12-14 19:04:05,691 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 19:04:05,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:04:05,696 INFO L85 PathProgramCache]: Analyzing trace with hash 51079051, now seen corresponding path program 1 times [2021-12-14 19:04:05,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:04:05,704 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454287367] [2021-12-14 19:04:05,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:04:05,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:04:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:04:06,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:06,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 19:04:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 19:04:06,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-14 19:04:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 19:04:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:06,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:04:06,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:04:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 19:04:06,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-14 19:04:06,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:06,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:04:06,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:04:06,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 19:04:06,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 19:04:06,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:06,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:04:06,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:04:06,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-14 19:04:06,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-14 19:04:06,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:06,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:04:06,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:04:06,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-14 19:04:06,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 19:04:06,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-14 19:04:06,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 19:04:06,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:06,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-14 19:04:06,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 19:04:06,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-14 19:04:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-14 19:04:06,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:06,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-14 19:04:06,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-14 19:04:06,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-14 19:04:06,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:06,973 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2021-12-14 19:04:06,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:04:06,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454287367] [2021-12-14 19:04:06,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454287367] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:04:06,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:04:06,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 19:04:06,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635945121] [2021-12-14 19:04:06,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:04:06,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 19:04:06,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:04:07,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 19:04:07,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 19:04:07,023 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) [2021-12-14 19:04:09,962 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 [] [2021-12-14 19:04:13,145 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 19:04:15,233 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 19:04:17,315 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 [] [2021-12-14 19:04:19,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:04:19,145 INFO L93 Difference]: Finished difference Result 3418 states and 4673 transitions. [2021-12-14 19:04:19,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 19:04:19,148 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 [2021-12-14 19:04:19,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:04:19,172 INFO L225 Difference]: With dead ends: 3418 [2021-12-14 19:04:19,172 INFO L226 Difference]: Without dead ends: 1724 [2021-12-14 19:04:19,184 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 [2021-12-14 19:04:19,187 INFO L933 BasicCegarLoop]: 2078 mSDtfsCounter, 1193 mSDsluCounter, 3115 mSDsCounter, 0 mSdLazyCounter, 1700 mSolverCounterSat, 1167 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1261 SdHoareTripleChecker+Valid, 5193 SdHoareTripleChecker+Invalid, 2871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1167 IncrementalHoareTripleChecker+Valid, 1700 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2021-12-14 19:04:19,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1261 Valid, 5193 Invalid, 2871 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1167 Valid, 1700 Invalid, 4 Unknown, 0 Unchecked, 11.7s Time] [2021-12-14 19:04:19,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1724 states. [2021-12-14 19:04:19,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1724 to 1642. [2021-12-14 19:04:19,339 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) [2021-12-14 19:04:19,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 2201 transitions. [2021-12-14 19:04:19,357 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 2201 transitions. Word has length 227 [2021-12-14 19:04:19,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:04:19,360 INFO L470 AbstractCegarLoop]: Abstraction has 1642 states and 2201 transitions. [2021-12-14 19:04:19,361 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) [2021-12-14 19:04:19,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 2201 transitions. [2021-12-14 19:04:19,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-12-14 19:04:19,373 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:04:19,374 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] [2021-12-14 19:04:19,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 19:04:19,376 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 19:04:19,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:04:19,377 INFO L85 PathProgramCache]: Analyzing trace with hash 1148756917, now seen corresponding path program 1 times [2021-12-14 19:04:19,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:04:19,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134871446] [2021-12-14 19:04:19,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:04:19,379 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:04:19,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:04:19,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:19,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 19:04:19,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 19:04:19,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-14 19:04:19,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 19:04:19,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:19,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:04:19,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:04:19,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 19:04:19,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 19:04:19,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:19,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:04:19,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:04:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 19:04:19,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2021-12-14 19:04:19,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:19,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:04:19,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:04:19,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2021-12-14 19:04:19,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2021-12-14 19:04:19,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-14 19:04:19,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-14 19:04:19,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:19,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-14 19:04:19,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 19:04:19,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 19:04:19,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-14 19:04:19,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:19,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2021-12-14 19:04:19,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-14 19:04:19,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2021-12-14 19:04:19,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:19,943 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 198 trivial. 0 not checked. [2021-12-14 19:04:19,944 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:04:19,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134871446] [2021-12-14 19:04:19,944 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134871446] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:04:19,944 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:04:19,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 19:04:19,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320106250] [2021-12-14 19:04:19,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:04:19,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 19:04:19,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:04:19,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 19:04:19,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 19:04:19,950 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) [2021-12-14 19:04:22,506 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 [] [2021-12-14 19:04:25,589 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 19:04:27,671 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 19:04:29,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:04:29,190 INFO L93 Difference]: Finished difference Result 2129 states and 2855 transitions. [2021-12-14 19:04:29,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 19:04:29,191 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 [2021-12-14 19:04:29,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:04:29,204 INFO L225 Difference]: With dead ends: 2129 [2021-12-14 19:04:29,205 INFO L226 Difference]: Without dead ends: 1722 [2021-12-14 19:04:29,207 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 [2021-12-14 19:04:29,209 INFO L933 BasicCegarLoop]: 2034 mSDtfsCounter, 1192 mSDsluCounter, 3035 mSDsCounter, 0 mSdLazyCounter, 1655 mSolverCounterSat, 1091 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1263 SdHoareTripleChecker+Valid, 5069 SdHoareTripleChecker+Invalid, 2749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1091 IncrementalHoareTripleChecker+Valid, 1655 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2021-12-14 19:04:29,209 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1263 Valid, 5069 Invalid, 2749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1091 Valid, 1655 Invalid, 3 Unknown, 0 Unchecked, 9.1s Time] [2021-12-14 19:04:29,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2021-12-14 19:04:29,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1642. [2021-12-14 19:04:29,269 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) [2021-12-14 19:04:29,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 2200 transitions. [2021-12-14 19:04:29,279 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 2200 transitions. Word has length 201 [2021-12-14 19:04:29,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:04:29,281 INFO L470 AbstractCegarLoop]: Abstraction has 1642 states and 2200 transitions. [2021-12-14 19:04:29,281 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) [2021-12-14 19:04:29,281 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 2200 transitions. [2021-12-14 19:04:29,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-14 19:04:29,285 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:04:29,286 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] [2021-12-14 19:04:29,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 19:04:29,286 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 19:04:29,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:04:29,287 INFO L85 PathProgramCache]: Analyzing trace with hash 24013449, now seen corresponding path program 1 times [2021-12-14 19:04:29,287 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:04:29,287 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973980755] [2021-12-14 19:04:29,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:04:29,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:04:29,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:04:29,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:29,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 19:04:29,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 19:04:29,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-14 19:04:29,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 19:04:29,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:04:29,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:04:29,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 19:04:29,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-14 19:04:29,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:29,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:04:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:04:29,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 19:04:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 19:04:29,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:29,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:04:29,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:04:29,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-14 19:04:29,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-14 19:04:29,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:29,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:04:29,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:04:29,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-14 19:04:29,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 19:04:29,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-14 19:04:29,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 19:04:29,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:29,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-14 19:04:29,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 19:04:29,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-14 19:04:29,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-14 19:04:29,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:29,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-14 19:04:29,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-14 19:04:29,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-14 19:04:29,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:29,743 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2021-12-14 19:04:29,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:04:29,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973980755] [2021-12-14 19:04:29,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973980755] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:04:29,745 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:04:29,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 19:04:29,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523680772] [2021-12-14 19:04:29,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:04:29,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 19:04:29,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:04:29,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 19:04:29,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 19:04:29,747 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) [2021-12-14 19:04:32,294 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 19:04:35,224 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 19:04:37,311 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 19:04:39,391 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 19:04:40,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 19:04:40,931 INFO L93 Difference]: Finished difference Result 2129 states and 2853 transitions. [2021-12-14 19:04:40,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 19:04:40,931 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 [2021-12-14 19:04:40,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 19:04:40,941 INFO L225 Difference]: With dead ends: 2129 [2021-12-14 19:04:40,941 INFO L226 Difference]: Without dead ends: 1722 [2021-12-14 19:04:40,943 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 [2021-12-14 19:04:40,944 INFO L933 BasicCegarLoop]: 2033 mSDtfsCounter, 1191 mSDsluCounter, 3033 mSDsCounter, 0 mSdLazyCounter, 1655 mSolverCounterSat, 1090 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1262 SdHoareTripleChecker+Valid, 5066 SdHoareTripleChecker+Invalid, 2749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1090 IncrementalHoareTripleChecker+Valid, 1655 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.0s IncrementalHoareTripleChecker+Time [2021-12-14 19:04:40,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1262 Valid, 5066 Invalid, 2749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1090 Valid, 1655 Invalid, 4 Unknown, 0 Unchecked, 11.0s Time] [2021-12-14 19:04:40,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2021-12-14 19:04:40,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1642. [2021-12-14 19:04:40,991 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) [2021-12-14 19:04:40,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 2199 transitions. [2021-12-14 19:04:41,000 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 2199 transitions. Word has length 227 [2021-12-14 19:04:41,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 19:04:41,001 INFO L470 AbstractCegarLoop]: Abstraction has 1642 states and 2199 transitions. [2021-12-14 19:04:41,001 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) [2021-12-14 19:04:41,001 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 2199 transitions. [2021-12-14 19:04:41,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-12-14 19:04:41,005 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 19:04:41,006 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] [2021-12-14 19:04:41,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 19:04:41,006 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 19:04:41,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 19:04:41,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1192140277, now seen corresponding path program 1 times [2021-12-14 19:04:41,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 19:04:41,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428727969] [2021-12-14 19:04:41,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 19:04:41,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 19:04:41,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:04:41,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:41,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 19:04:41,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 19:04:41,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-14 19:04:41,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 19:04:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:41,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:04:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:04:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 19:04:41,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-14 19:04:41,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:04:41,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:04:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 19:04:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 19:04:41,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:41,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:04:41,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:04:41,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2021-12-14 19:04:41,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-14 19:04:41,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:41,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 19:04:41,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 19:04:41,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2021-12-14 19:04:41,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 19:04:41,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2021-12-14 19:04:41,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 19:04:41,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:41,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-14 19:04:41,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 19:04:41,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2021-12-14 19:04:41,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2021-12-14 19:04:41,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 19:04:41,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-14 19:04:41,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-14 19:04:41,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-14 19:04:41,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 19:04:41,561 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2021-12-14 19:04:41,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 19:04:41,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428727969] [2021-12-14 19:04:41,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428727969] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 19:04:41,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 19:04:41,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 19:04:41,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503044957] [2021-12-14 19:04:41,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 19:04:41,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 19:04:41,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 19:04:41,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 19:04:41,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-12-14 19:04:41,564 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) [2021-12-14 19:04:44,218 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 19:04:46,302 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 19:04:48,397 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 19:04:50,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 19:04:52,544 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []