./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.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 cde51297e6fd0e941efee971bf40d8442d789ab4fb58443b4ef667bb6a80abb8 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 15:20:44,101 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 15:20:44,102 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 15:20:44,168 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 15:20:44,168 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 15:20:44,171 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 15:20:44,172 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 15:20:44,174 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 15:20:44,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 15:20:44,178 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 15:20:44,178 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 15:20:44,179 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 15:20:44,180 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 15:20:44,196 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 15:20:44,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 15:20:44,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 15:20:44,200 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 15:20:44,200 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 15:20:44,202 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 15:20:44,205 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 15:20:44,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 15:20:44,207 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 15:20:44,208 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 15:20:44,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 15:20:44,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 15:20:44,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 15:20:44,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 15:20:44,214 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 15:20:44,215 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 15:20:44,215 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 15:20:44,215 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 15:20:44,216 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 15:20:44,217 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 15:20:44,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 15:20:44,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 15:20:44,219 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 15:20:44,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 15:20:44,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 15:20:44,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 15:20:44,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 15:20:44,221 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 15:20:44,222 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 15:20:44,244 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 15:20:44,245 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 15:20:44,245 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 15:20:44,245 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 15:20:44,246 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 15:20:44,246 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 15:20:44,246 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 15:20:44,247 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 15:20:44,247 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 15:20:44,247 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 15:20:44,248 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 15:20:44,248 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 15:20:44,248 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 15:20:44,248 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 15:20:44,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 15:20:44,248 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 15:20:44,248 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 15:20:44,249 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 15:20:44,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 15:20:44,249 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 15:20:44,249 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 15:20:44,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:20:44,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 15:20:44,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 15:20:44,249 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 15:20:44,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 15:20:44,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 15:20:44,251 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 15:20:44,251 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 15:20:44,251 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 15:20:44,251 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 15:20:44,251 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cde51297e6fd0e941efee971bf40d8442d789ab4fb58443b4ef667bb6a80abb8 [2021-12-22 15:20:44,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 15:20:44,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 15:20:44,432 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 15:20:44,439 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 15:20:44,439 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 15:20:44,440 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i [2021-12-22 15:20:44,507 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca1841cec/302c5485ba2c4506a5cab5de80574c77/FLAG5c75e5c0a [2021-12-22 15:20:45,172 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 15:20:45,173 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i [2021-12-22 15:20:45,228 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca1841cec/302c5485ba2c4506a5cab5de80574c77/FLAG5c75e5c0a [2021-12-22 15:20:45,520 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca1841cec/302c5485ba2c4506a5cab5de80574c77 [2021-12-22 15:20:45,523 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 15:20:45,524 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 15:20:45,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 15:20:45,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 15:20:45,527 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 15:20:45,528 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:20:45" (1/1) ... [2021-12-22 15:20:45,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59b39aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:20:45, skipping insertion in model container [2021-12-22 15:20:45,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:20:45" (1/1) ... [2021-12-22 15:20:45,533 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 15:20:45,622 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 15:20:48,794 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[464446,464459] [2021-12-22 15:20:48,797 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[464591,464604] [2021-12-22 15:20:48,823 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:20:48,874 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 15:20:49,150 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[464446,464459] [2021-12-22 15:20:49,150 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i[464591,464604] [2021-12-22 15:20:49,154 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:20:49,305 INFO L208 MainTranslator]: Completed translation [2021-12-22 15:20:49,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:20:49 WrapperNode [2021-12-22 15:20:49,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 15:20:49,307 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 15:20:49,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 15:20:49,307 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 15:20:49,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:20:49" (1/1) ... [2021-12-22 15:20:49,385 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:20:49" (1/1) ... [2021-12-22 15:20:49,559 INFO L137 Inliner]: procedures = 623, calls = 3565, calls flagged for inlining = 310, calls inlined = 274, statements flattened = 8094 [2021-12-22 15:20:49,560 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 15:20:49,560 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 15:20:49,560 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 15:20:49,561 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 15:20:49,566 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:20:49" (1/1) ... [2021-12-22 15:20:49,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:20:49" (1/1) ... [2021-12-22 15:20:49,613 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:20:49" (1/1) ... [2021-12-22 15:20:49,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:20:49" (1/1) ... [2021-12-22 15:20:49,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:20:49" (1/1) ... [2021-12-22 15:20:49,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:20:49" (1/1) ... [2021-12-22 15:20:49,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:20:49" (1/1) ... [2021-12-22 15:20:49,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 15:20:49,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 15:20:49,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 15:20:49,935 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 15:20:49,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:20:49" (1/1) ... [2021-12-22 15:20:49,941 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:20:49,948 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:20:49,960 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) [2021-12-22 15:20:49,991 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 [2021-12-22 15:20:49,997 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-22 15:20:49,997 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-22 15:20:49,997 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-22 15:20:49,997 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-22 15:20:49,997 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_phy_reg [2021-12-22 15:20:49,997 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_phy_reg [2021-12-22 15:20:49,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 15:20:49,998 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 15:20:49,998 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_force_ps [2021-12-22 15:20:49,998 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_force_ps [2021-12-22 15:20:49,998 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-12-22 15:20:49,998 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-12-22 15:20:49,998 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-22 15:20:49,998 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-22 15:20:49,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 15:20:49,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 15:20:49,999 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_del_timer [2021-12-22 15:20:49,999 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_del_timer [2021-12-22 15:20:49,999 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-12-22 15:20:49,999 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-12-22 15:20:49,999 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-22 15:20:49,999 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-22 15:20:49,999 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-22 15:20:49,999 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-22 15:20:50,000 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-22 15:20:50,000 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-22 15:20:50,000 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-22 15:20:50,000 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-22 15:20:50,000 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_disable [2021-12-22 15:20:50,000 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_disable [2021-12-22 15:20:50,000 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_io_resume [2021-12-22 15:20:50,000 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_io_resume [2021-12-22 15:20:50,001 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_restart_autoneg [2021-12-22 15:20:50,001 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_restart_autoneg [2021-12-22 15:20:50,001 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_close [2021-12-22 15:20:50,001 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_close [2021-12-22 15:20:50,001 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-22 15:20:50,001 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-22 15:20:50,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-22 15:20:50,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-22 15:20:50,001 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tpd [2021-12-22 15:20:50,002 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tpd [2021-12-22 15:20:50,002 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-22 15:20:50,002 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-22 15:20:50,002 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-22 15:20:50,002 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-22 15:20:50,002 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-22 15:20:50,002 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-22 15:20:50,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-22 15:20:50,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-22 15:20:50,003 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 15:20:50,003 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 15:20:50,003 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_irq [2021-12-22 15:20:50,003 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_irq [2021-12-22 15:20:50,003 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-22 15:20:50,003 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-22 15:20:50,003 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-12-22 15:20:50,004 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-12-22 15:20:50,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 15:20:50,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_106 [2021-12-22 15:20:50,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_106 [2021-12-22 15:20:50,004 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-12-22 15:20:50,004 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-12-22 15:20:50,004 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_shutdown [2021-12-22 15:20:50,004 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_shutdown [2021-12-22 15:20:50,005 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-12-22 15:20:50,005 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-12-22 15:20:50,005 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_check_eeprom_exist [2021-12-22 15:20:50,005 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_check_eeprom_exist [2021-12-22 15:20:50,005 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-12-22 15:20:50,005 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-12-22 15:20:50,005 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-22 15:20:50,005 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-22 15:20:50,006 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-22 15:20:50,006 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-22 15:20:50,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 15:20:50,006 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_hw_set_mac_addr [2021-12-22 15:20:50,006 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_hw_set_mac_addr [2021-12-22 15:20:50,006 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-22 15:20:50,006 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-22 15:20:50,006 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-22 15:20:50,006 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-22 15:20:50,007 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tx_buffer [2021-12-22 15:20:50,007 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tx_buffer [2021-12-22 15:20:50,007 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 15:20:50,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-22 15:20:50,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-22 15:20:50,007 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 15:20:50,007 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-22 15:20:50,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-22 15:20:50,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-12-22 15:20:50,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-12-22 15:20:50,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 15:20:50,008 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 15:20:50,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-22 15:20:50,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-22 15:20:50,008 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-12-22 15:20:50,008 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-12-22 15:20:50,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-22 15:20:50,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-22 15:20:50,009 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2021-12-22 15:20:50,009 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2021-12-22 15:20:50,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-22 15:20:50,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-22 15:20:50,009 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-22 15:20:50,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-22 15:20:50,009 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_reset [2021-12-22 15:20:50,009 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_reset [2021-12-22 15:20:50,010 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-22 15:20:50,010 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-22 15:20:50,010 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-22 15:20:50,010 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-22 15:20:50,010 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_down [2021-12-22 15:20:50,010 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_down [2021-12-22 15:20:50,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 15:20:50,010 INFO L130 BoogieDeclarations]: Found specification of procedure __atl1e_vlan_mode [2021-12-22 15:20:50,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __atl1e_vlan_mode [2021-12-22 15:20:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-22 15:20:50,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-22 15:20:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-22 15:20:50,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-22 15:20:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 15:20:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-12-22 15:20:50,011 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-12-22 15:20:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-22 15:20:50,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-22 15:20:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-22 15:20:50,012 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-22 15:20:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 15:20:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-22 15:20:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-12-22 15:20:50,013 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-12-22 15:20:50,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-12-22 15:20:50,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-12-22 15:20:50,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-12-22 15:20:50,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-12-22 15:20:50,013 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-12-22 15:20:50,013 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-12-22 15:20:50,013 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_set_multi [2021-12-22 15:20:50,014 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_set_multi [2021-12-22 15:20:50,014 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_remove [2021-12-22 15:20:50,014 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_remove [2021-12-22 15:20:50,014 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-22 15:20:50,014 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-22 15:20:50,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_atl1e_driver_exit_14_2 [2021-12-22 15:20:50,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_atl1e_driver_exit_14_2 [2021-12-22 15:20:50,014 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-22 15:20:50,015 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-22 15:20:50,015 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-12-22 15:20:50,015 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-12-22 15:20:50,015 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-22 15:20:50,015 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-22 15:20:50,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-22 15:20:50,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-22 15:20:50,015 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_ring_resources [2021-12-22 15:20:50,016 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_ring_resources [2021-12-22 15:20:50,016 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-12-22 15:20:50,016 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-12-22 15:20:50,016 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-22 15:20:50,016 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-22 15:20:50,016 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-22 15:20:50,016 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-22 15:20:50,016 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_validate_option [2021-12-22 15:20:50,017 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_validate_option [2021-12-22 15:20:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2021-12-22 15:20:50,017 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2021-12-22 15:20:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-12-22 15:20:50,017 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-12-22 15:20:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 15:20:50,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 15:20:50,017 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-12-22 15:20:50,017 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-12-22 15:20:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-22 15:20:50,018 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-22 15:20:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 15:20:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 15:20:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 15:20:50,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 15:20:50,018 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-22 15:20:50,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-22 15:20:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-22 15:20:50,019 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-22 15:20:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-22 15:20:50,019 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-22 15:20:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-22 15:20:50,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-22 15:20:50,019 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_tx_ring [2021-12-22 15:20:50,019 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_tx_ring [2021-12-22 15:20:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mdio_lock_of_atl1e_adapter [2021-12-22 15:20:50,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mdio_lock_of_atl1e_adapter [2021-12-22 15:20:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-22 15:20:50,020 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-22 15:20:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-12-22 15:20:50,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-12-22 15:20:50,020 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-12-22 15:20:50,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-12-22 15:20:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_mdio_lock_of_atl1e_adapter [2021-12-22 15:20:50,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_mdio_lock_of_atl1e_adapter [2021-12-22 15:20:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-22 15:20:50,021 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-22 15:20:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 15:20:50,021 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 15:20:50,021 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_resume [2021-12-22 15:20:50,021 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_resume [2021-12-22 15:20:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-22 15:20:50,022 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-22 15:20:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-12-22 15:20:50,022 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-12-22 15:20:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 15:20:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-22 15:20:50,022 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-22 15:20:50,022 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-12-22 15:20:50,022 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-12-22 15:20:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-22 15:20:50,023 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-22 15:20:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_tx_timeout [2021-12-22 15:20:50,023 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_tx_timeout [2021-12-22 15:20:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_114 [2021-12-22 15:20:50,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_114 [2021-12-22 15:20:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 15:20:50,023 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_vlan_mode [2021-12-22 15:20:50,024 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_vlan_mode [2021-12-22 15:20:50,024 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_write_phy_reg [2021-12-22 15:20:50,024 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_write_phy_reg [2021-12-22 15:20:50,024 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-12-22 15:20:50,024 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-12-22 15:20:50,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_102 [2021-12-22 15:20:50,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_102 [2021-12-22 15:20:50,024 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_up [2021-12-22 15:20:50,025 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_up [2021-12-22 15:20:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 15:20:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_commit [2021-12-22 15:20:50,025 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_commit [2021-12-22 15:20:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-12-22 15:20:50,025 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-12-22 15:20:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-22 15:20:50,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-22 15:20:50,025 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-22 15:20:50,026 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-22 15:20:50,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-22 15:20:50,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-22 15:20:50,026 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-22 15:20:50,026 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-22 15:20:50,026 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-22 15:20:50,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-22 15:20:50,026 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reinit_locked [2021-12-22 15:20:50,027 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reinit_locked [2021-12-22 15:20:50,027 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_init [2021-12-22 15:20:50,027 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_init [2021-12-22 15:20:50,027 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_intr [2021-12-22 15:20:50,027 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_intr [2021-12-22 15:20:50,027 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-22 15:20:50,027 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-22 15:20:50,027 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-12-22 15:20:50,028 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-12-22 15:20:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_open [2021-12-22 15:20:50,028 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_open [2021-12-22 15:20:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-22 15:20:50,028 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-22 15:20:50,028 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-12-22 15:20:50,028 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-12-22 15:20:50,029 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_enable [2021-12-22 15:20:50,029 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_enable [2021-12-22 15:20:50,029 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 15:20:50,029 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 15:20:50,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 15:20:50,029 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_netpoll [2021-12-22 15:20:50,029 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_netpoll [2021-12-22 15:20:50,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 15:20:50,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 15:20:50,030 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_eeprom [2021-12-22 15:20:50,030 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_eeprom [2021-12-22 15:20:50,030 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_suspend [2021-12-22 15:20:50,030 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_suspend [2021-12-22 15:20:50,030 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-22 15:20:50,030 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-22 15:20:50,030 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-22 15:20:50,030 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-22 15:20:50,031 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_nway_reset [2021-12-22 15:20:50,031 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_nway_reset [2021-12-22 15:20:50,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_105 [2021-12-22 15:20:50,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_105 [2021-12-22 15:20:50,031 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-22 15:20:50,031 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-22 15:20:50,031 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_request_irq [2021-12-22 15:20:50,031 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_request_irq [2021-12-22 15:20:50,032 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2021-12-22 15:20:50,032 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2021-12-22 15:20:50,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-22 15:20:50,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-22 15:20:50,032 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-22 15:20:50,032 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-22 15:20:50,032 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-22 15:20:50,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-22 15:20:50,033 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_eeprom_len [2021-12-22 15:20:50,033 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_eeprom_len [2021-12-22 15:20:50,033 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-22 15:20:50,033 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-22 15:20:50,033 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-22 15:20:50,033 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-22 15:20:50,033 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reset_hw [2021-12-22 15:20:50,033 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reset_hw [2021-12-22 15:20:50,034 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-12-22 15:20:50,034 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-12-22 15:20:50,034 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-22 15:20:50,034 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-22 15:20:50,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 15:20:50,034 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-12-22 15:20:50,034 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-12-22 15:20:50,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-22 15:20:50,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-22 15:20:50,035 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_regs_len [2021-12-22 15:20:50,035 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_regs_len [2021-12-22 15:20:50,035 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_rx_ring [2021-12-22 15:20:50,035 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_rx_ring [2021-12-22 15:20:50,861 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 15:20:50,863 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 15:20:51,084 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 15:21:00,546 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-22 15:21:00,757 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 15:21:00,773 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 15:21:00,774 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-22 15:21:00,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:21:00 BoogieIcfgContainer [2021-12-22 15:21:00,779 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 15:21:00,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 15:21:00,781 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 15:21:00,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 15:21:00,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:20:45" (1/3) ... [2021-12-22 15:21:00,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38e48319 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:21:00, skipping insertion in model container [2021-12-22 15:21:00,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:20:49" (2/3) ... [2021-12-22 15:21:00,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38e48319 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:21:00, skipping insertion in model container [2021-12-22 15:21:00,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:21:00" (3/3) ... [2021-12-22 15:21:00,787 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i [2021-12-22 15:21:00,793 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 15:21:00,793 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 15:21:00,846 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 15:21:00,858 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 [2021-12-22 15:21:00,858 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 15:21:00,920 INFO L276 IsEmpty]: Start isEmpty. Operand has 2837 states, 1921 states have (on average 1.2613222280062468) internal successors, (2423), 1946 states have internal predecessors, (2423), 767 states have call successors, (767), 149 states have call predecessors, (767), 148 states have return successors, (761), 759 states have call predecessors, (761), 761 states have call successors, (761) [2021-12-22 15:21:00,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-12-22 15:21:00,954 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:21:00,955 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:21:00,955 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:21:00,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:21:00,960 INFO L85 PathProgramCache]: Analyzing trace with hash -24091557, now seen corresponding path program 1 times [2021-12-22 15:21:00,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:21:00,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709039502] [2021-12-22 15:21:00,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:21:00,969 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:21:01,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:21:01,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:21:01,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:21:01,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:21:01,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:21:01,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:21:01,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:21:01,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:21:01,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:21:01,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:21:01,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:21:01,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:21:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:21:01,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:21:01,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 15:21:01,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:21:01,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-22 15:21:01,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:21:01,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-22 15:21:01,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:21:01,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 15:21:01,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:21:01,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 15:21:01,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:21:01,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-22 15:21:01,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:21:01,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 15:21:01,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:21:01,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-22 15:21:01,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-22 15:21:01,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:21:01,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:21:01,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-22 15:21:01,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-22 15:21:01,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-22 15:21:01,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:21:01,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 15:21:01,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-22 15:21:01,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:01,831 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 865 trivial. 0 not checked. [2021-12-22 15:21:01,831 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:21:01,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709039502] [2021-12-22 15:21:01,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709039502] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:21:01,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:21:01,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:21:01,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461174375] [2021-12-22 15:21:01,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:21:01,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:21:01,838 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:21:01,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:21:01,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:21:01,864 INFO L87 Difference]: Start difference. First operand has 2837 states, 1921 states have (on average 1.2613222280062468) internal successors, (2423), 1946 states have internal predecessors, (2423), 767 states have call successors, (767), 149 states have call predecessors, (767), 148 states have return successors, (761), 759 states have call predecessors, (761), 761 states have call successors, (761) Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-22 15:21:07,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:21:07,261 INFO L93 Difference]: Finished difference Result 7783 states and 10945 transitions. [2021-12-22 15:21:07,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:21:07,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 231 [2021-12-22 15:21:07,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:21:07,299 INFO L225 Difference]: With dead ends: 7783 [2021-12-22 15:21:07,299 INFO L226 Difference]: Without dead ends: 4893 [2021-12-22 15:21:07,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:21:07,320 INFO L933 BasicCegarLoop]: 4108 mSDtfsCounter, 3707 mSDsluCounter, 4515 mSDsCounter, 0 mSdLazyCounter, 2392 mSolverCounterSat, 1870 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4243 SdHoareTripleChecker+Valid, 8623 SdHoareTripleChecker+Invalid, 4262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1870 IncrementalHoareTripleChecker+Valid, 2392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2021-12-22 15:21:07,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4243 Valid, 8623 Invalid, 4262 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1870 Valid, 2392 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2021-12-22 15:21:07,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4893 states. [2021-12-22 15:21:07,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4893 to 4656. [2021-12-22 15:21:07,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4656 states, 3168 states have (on average 1.2512626262626263) internal successors, (3964), 3211 states have internal predecessors, (3964), 1222 states have call successors, (1222), 266 states have call predecessors, (1222), 265 states have return successors, (1222), 1215 states have call predecessors, (1222), 1222 states have call successors, (1222) [2021-12-22 15:21:07,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4656 states to 4656 states and 6408 transitions. [2021-12-22 15:21:07,611 INFO L78 Accepts]: Start accepts. Automaton has 4656 states and 6408 transitions. Word has length 231 [2021-12-22 15:21:07,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:21:07,615 INFO L470 AbstractCegarLoop]: Abstraction has 4656 states and 6408 transitions. [2021-12-22 15:21:07,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 3 states have internal predecessors, (70), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2021-12-22 15:21:07,615 INFO L276 IsEmpty]: Start isEmpty. Operand 4656 states and 6408 transitions. [2021-12-22 15:21:07,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2021-12-22 15:21:07,622 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:21:07,622 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:21:07,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 15:21:07,625 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:21:07,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:21:07,626 INFO L85 PathProgramCache]: Analyzing trace with hash 757183165, now seen corresponding path program 1 times [2021-12-22 15:21:07,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:21:07,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801208244] [2021-12-22 15:21:07,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:21:07,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:21:07,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:07,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:21:07,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:07,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:21:07,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:07,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:21:07,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:07,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:21:07,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:07,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:21:07,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:07,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:21:07,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:07,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:21:07,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:07,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:21:07,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:07,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:21:07,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:07,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:21:07,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:07,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:21:07,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:07,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:21:07,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:07,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:21:07,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:07,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:21:07,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:08,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 15:21:08,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:08,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:21:08,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:08,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-22 15:21:08,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:08,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:21:08,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:08,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-22 15:21:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:08,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:21:08,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:08,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 15:21:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:08,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:21:08,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:08,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 15:21:08,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:08,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:21:08,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:08,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-22 15:21:08,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:08,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:21:08,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:08,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 15:21:08,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:08,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:21:08,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:08,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-22 15:21:08,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:08,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-22 15:21:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:08,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-22 15:21:08,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:08,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-22 15:21:08,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:08,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:21:08,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:08,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-22 15:21:08,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:08,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-22 15:21:08,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:08,188 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2021-12-22 15:21:08,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:21:08,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801208244] [2021-12-22 15:21:08,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801208244] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:21:08,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:21:08,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:21:08,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343035912] [2021-12-22 15:21:08,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:21:08,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:21:08,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:21:08,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:21:08,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:21:08,195 INFO L87 Difference]: Start difference. First operand 4656 states and 6408 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-22 15:21:14,537 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:21:17,932 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:21:20,283 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:21:23,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:21:23,210 INFO L93 Difference]: Finished difference Result 12961 states and 18069 transitions. [2021-12-22 15:21:23,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 15:21:23,210 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 239 [2021-12-22 15:21:23,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:21:23,245 INFO L225 Difference]: With dead ends: 12961 [2021-12-22 15:21:23,246 INFO L226 Difference]: Without dead ends: 8338 [2021-12-22 15:21:23,260 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-12-22 15:21:23,261 INFO L933 BasicCegarLoop]: 5265 mSDtfsCounter, 4923 mSDsluCounter, 6806 mSDsCounter, 0 mSdLazyCounter, 4738 mSolverCounterSat, 3219 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5353 SdHoareTripleChecker+Valid, 12071 SdHoareTripleChecker+Invalid, 7959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3219 IncrementalHoareTripleChecker+Valid, 4738 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2021-12-22 15:21:23,261 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5353 Valid, 12071 Invalid, 7959 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3219 Valid, 4738 Invalid, 2 Unknown, 0 Unchecked, 14.4s Time] [2021-12-22 15:21:23,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8338 states. [2021-12-22 15:21:23,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8338 to 7061. [2021-12-22 15:21:23,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7061 states, 4834 states have (on average 1.2498965659908978) internal successors, (6042), 4895 states have internal predecessors, (6042), 1808 states have call successors, (1808), 419 states have call predecessors, (1808), 418 states have return successors, (1808), 1798 states have call predecessors, (1808), 1808 states have call successors, (1808) [2021-12-22 15:21:23,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7061 states to 7061 states and 9658 transitions. [2021-12-22 15:21:23,753 INFO L78 Accepts]: Start accepts. Automaton has 7061 states and 9658 transitions. Word has length 239 [2021-12-22 15:21:23,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:21:23,754 INFO L470 AbstractCegarLoop]: Abstraction has 7061 states and 9658 transitions. [2021-12-22 15:21:23,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-12-22 15:21:23,755 INFO L276 IsEmpty]: Start isEmpty. Operand 7061 states and 9658 transitions. [2021-12-22 15:21:23,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2021-12-22 15:21:23,761 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:21:23,761 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:21:23,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 15:21:23,762 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:21:23,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:21:23,762 INFO L85 PathProgramCache]: Analyzing trace with hash -2051024223, now seen corresponding path program 1 times [2021-12-22 15:21:23,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:21:23,762 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735852349] [2021-12-22 15:21:23,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:21:23,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:21:23,853 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-22 15:21:23,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1611502137] [2021-12-22 15:21:23,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:21:23,855 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 15:21:23,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:21:23,857 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 15:21:23,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-22 15:21:24,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:24,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 4059 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 15:21:24,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 15:21:25,536 INFO L134 CoverageAnalysis]: Checked inductivity of 1032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2021-12-22 15:21:25,536 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 15:21:25,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:21:25,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735852349] [2021-12-22 15:21:25,537 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-22 15:21:25,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611502137] [2021-12-22 15:21:25,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611502137] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:21:25,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:21:25,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-22 15:21:25,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766593974] [2021-12-22 15:21:25,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:21:25,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 15:21:25,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:21:25,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 15:21:25,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 15:21:25,539 INFO L87 Difference]: Start difference. First operand 7061 states and 9658 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 1 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2021-12-22 15:21:25,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:21:25,712 INFO L93 Difference]: Finished difference Result 14089 states and 19286 transitions. [2021-12-22 15:21:25,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 15:21:25,713 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 1 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) Word has length 303 [2021-12-22 15:21:25,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:21:25,741 INFO L225 Difference]: With dead ends: 14089 [2021-12-22 15:21:25,741 INFO L226 Difference]: Without dead ends: 7061 [2021-12-22 15:21:25,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 301 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 15:21:25,765 INFO L933 BasicCegarLoop]: 3853 mSDtfsCounter, 3681 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3681 SdHoareTripleChecker+Valid, 3853 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:21:25,766 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3681 Valid, 3853 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:21:25,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7061 states. [2021-12-22 15:21:26,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7061 to 7061. [2021-12-22 15:21:26,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7061 states, 4834 states have (on average 1.2492759619362845) internal successors, (6039), 4895 states have internal predecessors, (6039), 1808 states have call successors, (1808), 419 states have call predecessors, (1808), 418 states have return successors, (1808), 1798 states have call predecessors, (1808), 1808 states have call successors, (1808) [2021-12-22 15:21:26,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7061 states to 7061 states and 9655 transitions. [2021-12-22 15:21:26,060 INFO L78 Accepts]: Start accepts. Automaton has 7061 states and 9655 transitions. Word has length 303 [2021-12-22 15:21:26,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:21:26,061 INFO L470 AbstractCegarLoop]: Abstraction has 7061 states and 9655 transitions. [2021-12-22 15:21:26,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 1 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2021-12-22 15:21:26,061 INFO L276 IsEmpty]: Start isEmpty. Operand 7061 states and 9655 transitions. [2021-12-22 15:21:26,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2021-12-22 15:21:26,068 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:21:26,068 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:21:26,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-22 15:21:26,285 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 15:21:26,286 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:21:26,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:21:26,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1224467345, now seen corresponding path program 1 times [2021-12-22 15:21:26,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:21:26,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698324601] [2021-12-22 15:21:26,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:21:26,287 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:21:26,369 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-22 15:21:26,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [168010826] [2021-12-22 15:21:26,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:21:26,377 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 15:21:26,378 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:21:26,379 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 15:21:26,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-22 15:21:27,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:27,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 4060 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 15:21:27,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 15:21:28,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2021-12-22 15:21:28,067 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 15:21:28,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:21:28,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698324601] [2021-12-22 15:21:28,067 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-22 15:21:28,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [168010826] [2021-12-22 15:21:28,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [168010826] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:21:28,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:21:28,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-22 15:21:28,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639651562] [2021-12-22 15:21:28,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:21:28,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 15:21:28,069 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:21:28,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 15:21:28,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 15:21:28,070 INFO L87 Difference]: Start difference. First operand 7061 states and 9655 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 1 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2021-12-22 15:21:28,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:21:28,230 INFO L93 Difference]: Finished difference Result 14089 states and 19280 transitions. [2021-12-22 15:21:28,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 15:21:28,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 1 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) Word has length 304 [2021-12-22 15:21:28,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:21:28,269 INFO L225 Difference]: With dead ends: 14089 [2021-12-22 15:21:28,269 INFO L226 Difference]: Without dead ends: 7061 [2021-12-22 15:21:28,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 15:21:28,296 INFO L933 BasicCegarLoop]: 3852 mSDtfsCounter, 3679 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3679 SdHoareTripleChecker+Valid, 3852 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:21:28,297 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3679 Valid, 3852 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:21:28,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7061 states. [2021-12-22 15:21:28,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7061 to 7061. [2021-12-22 15:21:28,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7061 states, 4834 states have (on average 1.2486553578816715) internal successors, (6036), 4895 states have internal predecessors, (6036), 1808 states have call successors, (1808), 419 states have call predecessors, (1808), 418 states have return successors, (1808), 1798 states have call predecessors, (1808), 1808 states have call successors, (1808) [2021-12-22 15:21:28,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7061 states to 7061 states and 9652 transitions. [2021-12-22 15:21:28,631 INFO L78 Accepts]: Start accepts. Automaton has 7061 states and 9652 transitions. Word has length 304 [2021-12-22 15:21:28,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:21:28,631 INFO L470 AbstractCegarLoop]: Abstraction has 7061 states and 9652 transitions. [2021-12-22 15:21:28,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 1 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2021-12-22 15:21:28,632 INFO L276 IsEmpty]: Start isEmpty. Operand 7061 states and 9652 transitions. [2021-12-22 15:21:28,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2021-12-22 15:21:28,638 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:21:28,639 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:21:28,666 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-22 15:21:28,851 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-12-22 15:21:28,852 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:21:28,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:21:28,852 INFO L85 PathProgramCache]: Analyzing trace with hash -199992547, now seen corresponding path program 1 times [2021-12-22 15:21:28,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:21:28,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785266159] [2021-12-22 15:21:28,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:21:28,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:21:28,984 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-22 15:21:28,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2139087795] [2021-12-22 15:21:28,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:21:28,985 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 15:21:28,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:21:28,995 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 15:21:29,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-22 15:21:30,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:30,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 4061 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 15:21:30,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 15:21:30,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2021-12-22 15:21:30,583 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 15:21:30,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:21:30,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785266159] [2021-12-22 15:21:30,583 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-22 15:21:30,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2139087795] [2021-12-22 15:21:30,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2139087795] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:21:30,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:21:30,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-22 15:21:30,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749792712] [2021-12-22 15:21:30,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:21:30,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 15:21:30,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:21:30,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 15:21:30,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 15:21:30,585 INFO L87 Difference]: Start difference. First operand 7061 states and 9652 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 1 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2021-12-22 15:21:30,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:21:30,752 INFO L93 Difference]: Finished difference Result 14089 states and 19274 transitions. [2021-12-22 15:21:30,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 15:21:30,753 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 1 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) Word has length 305 [2021-12-22 15:21:30,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:21:30,779 INFO L225 Difference]: With dead ends: 14089 [2021-12-22 15:21:30,780 INFO L226 Difference]: Without dead ends: 7061 [2021-12-22 15:21:30,799 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 15:21:30,800 INFO L933 BasicCegarLoop]: 3851 mSDtfsCounter, 3677 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3677 SdHoareTripleChecker+Valid, 3851 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:21:30,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3677 Valid, 3851 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:21:30,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7061 states. [2021-12-22 15:21:31,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7061 to 7061. [2021-12-22 15:21:31,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7061 states, 4834 states have (on average 1.2480347538270584) internal successors, (6033), 4895 states have internal predecessors, (6033), 1808 states have call successors, (1808), 419 states have call predecessors, (1808), 418 states have return successors, (1808), 1798 states have call predecessors, (1808), 1808 states have call successors, (1808) [2021-12-22 15:21:31,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7061 states to 7061 states and 9649 transitions. [2021-12-22 15:21:31,094 INFO L78 Accepts]: Start accepts. Automaton has 7061 states and 9649 transitions. Word has length 305 [2021-12-22 15:21:31,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:21:31,095 INFO L470 AbstractCegarLoop]: Abstraction has 7061 states and 9649 transitions. [2021-12-22 15:21:31,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 1 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2021-12-22 15:21:31,095 INFO L276 IsEmpty]: Start isEmpty. Operand 7061 states and 9649 transitions. [2021-12-22 15:21:31,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2021-12-22 15:21:31,101 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:21:31,101 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:21:31,133 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-22 15:21:31,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 15:21:31,317 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:21:31,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:21:31,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1294059635, now seen corresponding path program 1 times [2021-12-22 15:21:31,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:21:31,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364742993] [2021-12-22 15:21:31,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:21:31,318 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:21:31,397 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-22 15:21:31,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [195826391] [2021-12-22 15:21:31,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:21:31,397 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 15:21:31,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:21:31,412 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 15:21:31,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-22 15:21:32,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:32,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 4062 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 15:21:32,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 15:21:32,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2021-12-22 15:21:32,983 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 15:21:32,983 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:21:32,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364742993] [2021-12-22 15:21:32,983 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-22 15:21:32,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [195826391] [2021-12-22 15:21:32,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [195826391] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:21:32,983 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:21:32,983 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-22 15:21:32,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001252029] [2021-12-22 15:21:32,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:21:32,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 15:21:32,984 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:21:32,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 15:21:32,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 15:21:32,985 INFO L87 Difference]: Start difference. First operand 7061 states and 9649 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 1 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2021-12-22 15:21:33,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:21:33,164 INFO L93 Difference]: Finished difference Result 14089 states and 19268 transitions. [2021-12-22 15:21:33,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 15:21:33,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 1 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) Word has length 306 [2021-12-22 15:21:33,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:21:33,300 INFO L225 Difference]: With dead ends: 14089 [2021-12-22 15:21:33,301 INFO L226 Difference]: Without dead ends: 7061 [2021-12-22 15:21:33,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 15:21:33,315 INFO L933 BasicCegarLoop]: 3850 mSDtfsCounter, 3675 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3675 SdHoareTripleChecker+Valid, 3850 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:21:33,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3675 Valid, 3850 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:21:33,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7061 states. [2021-12-22 15:21:33,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7061 to 7061. [2021-12-22 15:21:33,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7061 states, 4834 states have (on average 1.2474141497724451) internal successors, (6030), 4895 states have internal predecessors, (6030), 1808 states have call successors, (1808), 419 states have call predecessors, (1808), 418 states have return successors, (1808), 1798 states have call predecessors, (1808), 1808 states have call successors, (1808) [2021-12-22 15:21:33,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7061 states to 7061 states and 9646 transitions. [2021-12-22 15:21:33,614 INFO L78 Accepts]: Start accepts. Automaton has 7061 states and 9646 transitions. Word has length 306 [2021-12-22 15:21:33,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:21:33,615 INFO L470 AbstractCegarLoop]: Abstraction has 7061 states and 9646 transitions. [2021-12-22 15:21:33,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 1 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2021-12-22 15:21:33,615 INFO L276 IsEmpty]: Start isEmpty. Operand 7061 states and 9646 transitions. [2021-12-22 15:21:33,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2021-12-22 15:21:33,622 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:21:33,623 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:21:33,676 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-22 15:21:33,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 15:21:33,836 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:21:33,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:21:33,836 INFO L85 PathProgramCache]: Analyzing trace with hash -735884391, now seen corresponding path program 1 times [2021-12-22 15:21:33,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:21:33,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728513194] [2021-12-22 15:21:33,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:21:33,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:21:33,901 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-22 15:21:33,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1154462571] [2021-12-22 15:21:33,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:21:33,901 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 15:21:33,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:21:33,916 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 15:21:33,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-22 15:21:34,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:34,958 INFO L263 TraceCheckSpWp]: Trace formula consists of 4063 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 15:21:34,963 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 15:21:35,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2021-12-22 15:21:35,504 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 15:21:35,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:21:35,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728513194] [2021-12-22 15:21:35,504 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-22 15:21:35,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1154462571] [2021-12-22 15:21:35,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1154462571] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:21:35,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:21:35,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-22 15:21:35,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24959634] [2021-12-22 15:21:35,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:21:35,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 15:21:35,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:21:35,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 15:21:35,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 15:21:35,505 INFO L87 Difference]: Start difference. First operand 7061 states and 9646 transitions. Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 1 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2021-12-22 15:21:35,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:21:35,690 INFO L93 Difference]: Finished difference Result 14089 states and 19262 transitions. [2021-12-22 15:21:35,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 15:21:35,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 1 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) Word has length 307 [2021-12-22 15:21:35,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:21:35,715 INFO L225 Difference]: With dead ends: 14089 [2021-12-22 15:21:35,715 INFO L226 Difference]: Without dead ends: 7061 [2021-12-22 15:21:35,731 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 15:21:35,732 INFO L933 BasicCegarLoop]: 3849 mSDtfsCounter, 3673 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3673 SdHoareTripleChecker+Valid, 3849 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:21:35,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3673 Valid, 3849 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:21:35,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7061 states. [2021-12-22 15:21:36,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7061 to 7061. [2021-12-22 15:21:36,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7061 states, 4834 states have (on average 1.246793545717832) internal successors, (6027), 4895 states have internal predecessors, (6027), 1808 states have call successors, (1808), 419 states have call predecessors, (1808), 418 states have return successors, (1808), 1798 states have call predecessors, (1808), 1808 states have call successors, (1808) [2021-12-22 15:21:36,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7061 states to 7061 states and 9643 transitions. [2021-12-22 15:21:36,173 INFO L78 Accepts]: Start accepts. Automaton has 7061 states and 9643 transitions. Word has length 307 [2021-12-22 15:21:36,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:21:36,175 INFO L470 AbstractCegarLoop]: Abstraction has 7061 states and 9643 transitions. [2021-12-22 15:21:36,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 1 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2021-12-22 15:21:36,176 INFO L276 IsEmpty]: Start isEmpty. Operand 7061 states and 9643 transitions. [2021-12-22 15:21:36,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2021-12-22 15:21:36,183 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:21:36,183 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:21:36,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-22 15:21:36,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 15:21:36,409 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:21:36,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:21:36,409 INFO L85 PathProgramCache]: Analyzing trace with hash -497804407, now seen corresponding path program 1 times [2021-12-22 15:21:36,409 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:21:36,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782609746] [2021-12-22 15:21:36,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:21:36,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:21:36,495 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-22 15:21:36,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [990878609] [2021-12-22 15:21:36,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:21:36,495 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 15:21:36,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:21:36,497 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 15:21:36,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-22 15:21:37,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:37,537 INFO L263 TraceCheckSpWp]: Trace formula consists of 4064 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 15:21:37,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 15:21:38,054 INFO L134 CoverageAnalysis]: Checked inductivity of 1032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2021-12-22 15:21:38,055 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 15:21:38,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:21:38,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782609746] [2021-12-22 15:21:38,055 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-22 15:21:38,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990878609] [2021-12-22 15:21:38,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990878609] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:21:38,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:21:38,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-22 15:21:38,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636308051] [2021-12-22 15:21:38,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:21:38,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 15:21:38,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:21:38,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 15:21:38,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 15:21:38,057 INFO L87 Difference]: Start difference. First operand 7061 states and 9643 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 1 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2021-12-22 15:21:38,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:21:38,262 INFO L93 Difference]: Finished difference Result 14089 states and 19256 transitions. [2021-12-22 15:21:38,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 15:21:38,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 1 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) Word has length 308 [2021-12-22 15:21:38,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:21:38,324 INFO L225 Difference]: With dead ends: 14089 [2021-12-22 15:21:38,330 INFO L226 Difference]: Without dead ends: 7061 [2021-12-22 15:21:38,353 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 15:21:38,354 INFO L933 BasicCegarLoop]: 3848 mSDtfsCounter, 3671 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3671 SdHoareTripleChecker+Valid, 3848 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:21:38,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3671 Valid, 3848 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:21:38,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7061 states. [2021-12-22 15:21:38,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7061 to 7061. [2021-12-22 15:21:38,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7061 states, 4834 states have (on average 1.2461729416632188) internal successors, (6024), 4895 states have internal predecessors, (6024), 1808 states have call successors, (1808), 419 states have call predecessors, (1808), 418 states have return successors, (1808), 1798 states have call predecessors, (1808), 1808 states have call successors, (1808) [2021-12-22 15:21:38,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7061 states to 7061 states and 9640 transitions. [2021-12-22 15:21:38,687 INFO L78 Accepts]: Start accepts. Automaton has 7061 states and 9640 transitions. Word has length 308 [2021-12-22 15:21:38,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:21:38,688 INFO L470 AbstractCegarLoop]: Abstraction has 7061 states and 9640 transitions. [2021-12-22 15:21:38,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 2 states have internal predecessors, (124), 1 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2021-12-22 15:21:38,688 INFO L276 IsEmpty]: Start isEmpty. Operand 7061 states and 9640 transitions. [2021-12-22 15:21:38,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2021-12-22 15:21:38,694 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:21:38,694 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:21:38,722 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-22 15:21:38,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 15:21:38,916 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:21:38,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:21:38,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1592742891, now seen corresponding path program 1 times [2021-12-22 15:21:38,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:21:38,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111290180] [2021-12-22 15:21:38,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:21:38,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:21:39,076 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-22 15:21:39,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1821436000] [2021-12-22 15:21:39,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:21:39,077 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 15:21:39,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:21:39,092 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 15:21:39,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-22 15:21:40,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:40,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 4065 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 15:21:40,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 15:21:40,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2021-12-22 15:21:40,914 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 15:21:40,914 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:21:40,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111290180] [2021-12-22 15:21:40,914 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-22 15:21:40,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1821436000] [2021-12-22 15:21:40,914 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1821436000] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:21:40,914 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:21:40,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-22 15:21:40,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639464660] [2021-12-22 15:21:40,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:21:40,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 15:21:40,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:21:40,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 15:21:40,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 15:21:40,915 INFO L87 Difference]: Start difference. First operand 7061 states and 9640 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 1 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2021-12-22 15:21:41,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:21:41,193 INFO L93 Difference]: Finished difference Result 14089 states and 19250 transitions. [2021-12-22 15:21:41,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-22 15:21:41,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 1 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) Word has length 309 [2021-12-22 15:21:41,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:21:41,209 INFO L225 Difference]: With dead ends: 14089 [2021-12-22 15:21:41,209 INFO L226 Difference]: Without dead ends: 7061 [2021-12-22 15:21:41,220 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 308 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 15:21:41,221 INFO L933 BasicCegarLoop]: 3847 mSDtfsCounter, 3669 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3669 SdHoareTripleChecker+Valid, 3847 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:21:41,221 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3669 Valid, 3847 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:21:41,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7061 states. [2021-12-22 15:21:41,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7061 to 7061. [2021-12-22 15:21:41,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7061 states, 4834 states have (on average 1.2455523376086057) internal successors, (6021), 4895 states have internal predecessors, (6021), 1808 states have call successors, (1808), 419 states have call predecessors, (1808), 418 states have return successors, (1808), 1798 states have call predecessors, (1808), 1808 states have call successors, (1808) [2021-12-22 15:21:41,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7061 states to 7061 states and 9637 transitions. [2021-12-22 15:21:41,455 INFO L78 Accepts]: Start accepts. Automaton has 7061 states and 9637 transitions. Word has length 309 [2021-12-22 15:21:41,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:21:41,455 INFO L470 AbstractCegarLoop]: Abstraction has 7061 states and 9637 transitions. [2021-12-22 15:21:41,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 2 states have internal predecessors, (125), 1 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29) [2021-12-22 15:21:41,455 INFO L276 IsEmpty]: Start isEmpty. Operand 7061 states and 9637 transitions. [2021-12-22 15:21:41,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2021-12-22 15:21:41,460 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:21:41,461 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 14, 14, 14, 14, 14, 14, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:21:41,485 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-22 15:21:41,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 15:21:41,678 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:21:41,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:21:41,679 INFO L85 PathProgramCache]: Analyzing trace with hash -1061580923, now seen corresponding path program 1 times [2021-12-22 15:21:41,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:21:41,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154681455] [2021-12-22 15:21:41,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:21:41,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:21:41,746 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-22 15:21:41,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [248129425] [2021-12-22 15:21:41,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:21:41,747 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 15:21:41,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:21:41,748 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 15:21:41,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-22 15:21:42,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:21:42,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 4066 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-22 15:21:42,799 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 15:21:43,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2021-12-22 15:21:43,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-22 15:21:43,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:21:43,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154681455] [2021-12-22 15:21:43,336 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-22 15:21:43,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248129425] [2021-12-22 15:21:43,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248129425] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:21:43,336 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:21:43,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-22 15:21:43,336 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524432033] [2021-12-22 15:21:43,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:21:43,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-22 15:21:43,336 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:21:43,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-22 15:21:43,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-22 15:21:43,337 INFO L87 Difference]: Start difference. First operand 7061 states and 9637 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 1 states have call successors, (31), 1 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 1 states have call successors, (29)