./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 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-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 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 18:26:39,025 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 18:26:39,027 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 18:26:39,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 18:26:39,062 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 18:26:39,065 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 18:26:39,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 18:26:39,069 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 18:26:39,070 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 18:26:39,074 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 18:26:39,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 18:26:39,075 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 18:26:39,076 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 18:26:39,077 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 18:26:39,079 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 18:26:39,083 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 18:26:39,085 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 18:26:39,086 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 18:26:39,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 18:26:39,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 18:26:39,101 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 18:26:39,102 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 18:26:39,103 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 18:26:39,103 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 18:26:39,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 18:26:39,105 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 18:26:39,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 18:26:39,109 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 18:26:39,109 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 18:26:39,110 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 18:26:39,110 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 18:26:39,110 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 18:26:39,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 18:26:39,112 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 18:26:39,113 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 18:26:39,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 18:26:39,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 18:26:39,114 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 18:26:39,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 18:26:39,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 18:26:39,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 18:26:39,116 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 18:26:39,131 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 18:26:39,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 18:26:39,135 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 18:26:39,136 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 18:26:39,136 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 18:26:39,137 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 18:26:39,137 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 18:26:39,137 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 18:26:39,137 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 18:26:39,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 18:26:39,138 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 18:26:39,138 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 18:26:39,138 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 18:26:39,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 18:26:39,139 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 18:26:39,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 18:26:39,139 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 18:26:39,139 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 18:26:39,139 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 18:26:39,139 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 18:26:39,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 18:26:39,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:26:39,140 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 18:26:39,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 18:26:39,140 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 18:26:39,140 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 18:26:39,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 18:26:39,141 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 18:26:39,142 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 18:26:39,142 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 18:26:39,142 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 18:26:39,142 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cde51297e6fd0e941efee971bf40d8442d789ab4fb58443b4ef667bb6a80abb8 [2021-12-14 18:26:39,395 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 18:26:39,430 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 18:26:39,431 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 18:26:39,432 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 18:26:39,434 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 18:26:39,435 INFO L432 ainManager$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 [2021-12-14 18:26:39,492 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/380bed2bd/1b83c4e4e27b4033bbdfbca18351c5c3/FLAGfbae4a383 [2021-12-14 18:26:40,234 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 18:26:40,234 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 [2021-12-14 18:26:40,291 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/380bed2bd/1b83c4e4e27b4033bbdfbca18351c5c3/FLAGfbae4a383 [2021-12-14 18:26:40,771 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/380bed2bd/1b83c4e4e27b4033bbdfbca18351c5c3 [2021-12-14 18:26:40,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 18:26:40,774 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 18:26:40,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 18:26:40,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 18:26:40,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 18:26:40,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:26:40" (1/1) ... [2021-12-14 18:26:40,781 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e536001 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:26:40, skipping insertion in model container [2021-12-14 18:26:40,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:26:40" (1/1) ... [2021-12-14 18:26:40,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 18:26:40,894 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 18:26:43,855 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] [2021-12-14 18:26:43,857 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] [2021-12-14 18:26:43,884 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:26:43,961 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 18:26:44,273 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] [2021-12-14 18:26:44,273 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] [2021-12-14 18:26:44,277 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:26:44,456 INFO L208 MainTranslator]: Completed translation [2021-12-14 18:26:44,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:26:44 WrapperNode [2021-12-14 18:26:44,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 18:26:44,457 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 18:26:44,457 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 18:26:44,457 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 18:26:44,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:26:44" (1/1) ... [2021-12-14 18:26:44,540 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:26:44" (1/1) ... [2021-12-14 18:26:44,718 INFO L137 Inliner]: procedures = 623, calls = 3565, calls flagged for inlining = 310, calls inlined = 274, statements flattened = 8094 [2021-12-14 18:26:44,721 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 18:26:44,721 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 18:26:44,721 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 18:26:44,722 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 18:26:44,728 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:26:44" (1/1) ... [2021-12-14 18:26:44,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:26:44" (1/1) ... [2021-12-14 18:26:44,755 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:26:44" (1/1) ... [2021-12-14 18:26:44,756 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:26:44" (1/1) ... [2021-12-14 18:26:44,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:26:44" (1/1) ... [2021-12-14 18:26:44,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:26:44" (1/1) ... [2021-12-14 18:26:44,904 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:26:44" (1/1) ... [2021-12-14 18:26:44,933 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 18:26:44,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 18:26:44,935 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 18:26:44,935 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 18:26:44,936 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:26:44" (1/1) ... [2021-12-14 18:26:44,941 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:26:44,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:26:44,959 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 18:26:44,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 18:26:44,991 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-12-14 18:26:44,991 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-12-14 18:26:44,991 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-12-14 18:26:44,991 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-12-14 18:26:44,991 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_phy_reg [2021-12-14 18:26:44,992 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_phy_reg [2021-12-14 18:26:44,992 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-14 18:26:44,992 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-14 18:26:44,992 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_force_ps [2021-12-14 18:26:44,992 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_force_ps [2021-12-14 18:26:44,992 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_page [2021-12-14 18:26:44,992 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_page [2021-12-14 18:26:44,992 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-14 18:26:44,993 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-14 18:26:44,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 18:26:44,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 18:26:44,993 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_del_timer [2021-12-14 18:26:44,993 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_del_timer [2021-12-14 18:26:44,993 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_word [2021-12-14 18:26:44,993 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_word [2021-12-14 18:26:44,993 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2021-12-14 18:26:44,994 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2021-12-14 18:26:44,994 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-14 18:26:44,994 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-14 18:26:44,994 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-14 18:26:44,994 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-14 18:26:44,994 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-14 18:26:44,994 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-14 18:26:44,994 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_disable [2021-12-14 18:26:44,994 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_disable [2021-12-14 18:26:44,995 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_io_resume [2021-12-14 18:26:44,995 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_io_resume [2021-12-14 18:26:44,995 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_restart_autoneg [2021-12-14 18:26:44,995 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_restart_autoneg [2021-12-14 18:26:44,995 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_close [2021-12-14 18:26:44,995 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_close [2021-12-14 18:26:44,996 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-14 18:26:44,996 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-14 18:26:44,996 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-14 18:26:44,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-14 18:26:44,996 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tpd [2021-12-14 18:26:44,996 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tpd [2021-12-14 18:26:44,996 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-14 18:26:44,996 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-14 18:26:44,997 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-14 18:26:44,997 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-14 18:26:44,997 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-14 18:26:44,997 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-14 18:26:44,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-14 18:26:44,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-14 18:26:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-14 18:26:44,998 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-14 18:26:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_irq [2021-12-14 18:26:44,998 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_irq [2021-12-14 18:26:44,998 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-14 18:26:44,999 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-14 18:26:44,999 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2021-12-14 18:26:45,000 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2021-12-14 18:26:45,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 18:26:45,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_106 [2021-12-14 18:26:45,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_106 [2021-12-14 18:26:45,000 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2021-12-14 18:26:45,000 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2021-12-14 18:26:45,000 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_shutdown [2021-12-14 18:26:45,001 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_shutdown [2021-12-14 18:26:45,001 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_work_sync [2021-12-14 18:26:45,001 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_work_sync [2021-12-14 18:26:45,001 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_check_eeprom_exist [2021-12-14 18:26:45,001 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_check_eeprom_exist [2021-12-14 18:26:45,001 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2021-12-14 18:26:45,001 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2021-12-14 18:26:45,002 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-14 18:26:45,002 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-14 18:26:45,002 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-14 18:26:45,002 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-14 18:26:45,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 18:26:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_hw_set_mac_addr [2021-12-14 18:26:45,003 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_hw_set_mac_addr [2021-12-14 18:26:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-14 18:26:45,003 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-14 18:26:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-14 18:26:45,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-14 18:26:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_tx_buffer [2021-12-14 18:26:45,003 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_tx_buffer [2021-12-14 18:26:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 18:26:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-14 18:26:45,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-14 18:26:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 18:26:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-14 18:26:45,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-14 18:26:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-12-14 18:26:45,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-12-14 18:26:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 18:26:45,005 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 18:26:45,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-14 18:26:45,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-14 18:26:45,006 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_header [2021-12-14 18:26:45,006 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_header [2021-12-14 18:26:45,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-14 18:26:45,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-14 18:26:45,006 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2021-12-14 18:26:45,006 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2021-12-14 18:26:45,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-14 18:26:45,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-14 18:26:45,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-14 18:26:45,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-14 18:26:45,007 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_reset [2021-12-14 18:26:45,007 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_reset [2021-12-14 18:26:45,007 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-14 18:26:45,007 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-14 18:26:45,008 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-14 18:26:45,008 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-14 18:26:45,008 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_down [2021-12-14 18:26:45,008 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_down [2021-12-14 18:26:45,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 18:26:45,009 INFO L130 BoogieDeclarations]: Found specification of procedure __atl1e_vlan_mode [2021-12-14 18:26:45,009 INFO L138 BoogieDeclarations]: Found implementation of procedure __atl1e_vlan_mode [2021-12-14 18:26:45,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-14 18:26:45,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-14 18:26:45,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-14 18:26:45,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-14 18:26:45,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 18:26:45,013 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-12-14 18:26:45,013 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-12-14 18:26:45,013 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-14 18:26:45,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-14 18:26:45,018 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-14 18:26:45,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-14 18:26:45,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 18:26:45,018 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-14 18:26:45,018 INFO L130 BoogieDeclarations]: Found specification of procedure skb_headlen [2021-12-14 18:26:45,018 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_headlen [2021-12-14 18:26:45,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-12-14 18:26:45,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-12-14 18:26:45,019 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-12-14 18:26:45,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-12-14 18:26:45,019 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2021-12-14 18:26:45,019 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2021-12-14 18:26:45,019 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_set_multi [2021-12-14 18:26:45,019 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_set_multi [2021-12-14 18:26:45,019 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_remove [2021-12-14 18:26:45,020 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_remove [2021-12-14 18:26:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-14 18:26:45,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-14 18:26:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_atl1e_driver_exit_14_2 [2021-12-14 18:26:45,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_atl1e_driver_exit_14_2 [2021-12-14 18:26:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-14 18:26:45,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-14 18:26:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-12-14 18:26:45,020 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-12-14 18:26:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-14 18:26:45,021 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-14 18:26:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-14 18:26:45,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-14 18:26:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_free_ring_resources [2021-12-14 18:26:45,021 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_free_ring_resources [2021-12-14 18:26:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-12-14 18:26:45,021 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-12-14 18:26:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-14 18:26:45,021 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-14 18:26:45,022 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-14 18:26:45,022 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-14 18:26:45,022 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_validate_option [2021-12-14 18:26:45,022 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_validate_option [2021-12-14 18:26:45,022 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2021-12-14 18:26:45,022 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2021-12-14 18:26:45,022 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-12-14 18:26:45,022 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-12-14 18:26:45,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 18:26:45,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 18:26:45,023 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdr [2021-12-14 18:26:45,023 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdr [2021-12-14 18:26:45,023 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-14 18:26:45,023 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-14 18:26:45,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 18:26:45,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 18:26:45,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 18:26:45,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 18:26:45,024 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-14 18:26:45,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-12-14 18:26:45,024 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-12-14 18:26:45,024 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-12-14 18:26:45,024 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-12-14 18:26:45,024 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-12-14 18:26:45,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-14 18:26:45,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-14 18:26:45,024 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_tx_ring [2021-12-14 18:26:45,025 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_tx_ring [2021-12-14 18:26:45,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mdio_lock_of_atl1e_adapter [2021-12-14 18:26:45,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mdio_lock_of_atl1e_adapter [2021-12-14 18:26:45,025 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-14 18:26:45,025 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-14 18:26:45,025 INFO L130 BoogieDeclarations]: Found specification of procedure ip_hdr [2021-12-14 18:26:45,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ip_hdr [2021-12-14 18:26:45,025 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-12-14 18:26:45,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-12-14 18:26:45,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_mdio_lock_of_atl1e_adapter [2021-12-14 18:26:45,026 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_mdio_lock_of_atl1e_adapter [2021-12-14 18:26:45,026 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-12-14 18:26:45,026 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-12-14 18:26:45,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 18:26:45,026 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 18:26:45,026 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_resume [2021-12-14 18:26:45,027 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_resume [2021-12-14 18:26:45,027 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-14 18:26:45,027 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-14 18:26:45,027 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2021-12-14 18:26:45,027 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2021-12-14 18:26:45,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 18:26:45,027 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-14 18:26:45,027 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-14 18:26:45,027 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2021-12-14 18:26:45,027 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2021-12-14 18:26:45,028 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-14 18:26:45,028 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-14 18:26:45,028 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_tx_timeout [2021-12-14 18:26:45,028 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_tx_timeout [2021-12-14 18:26:45,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_114 [2021-12-14 18:26:45,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_114 [2021-12-14 18:26:45,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 18:26:45,028 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_vlan_mode [2021-12-14 18:26:45,028 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_vlan_mode [2021-12-14 18:26:45,029 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_write_phy_reg [2021-12-14 18:26:45,029 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_write_phy_reg [2021-12-14 18:26:45,029 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-12-14 18:26:45,029 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-12-14 18:26:45,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_102 [2021-12-14 18:26:45,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_102 [2021-12-14 18:26:45,029 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_up [2021-12-14 18:26:45,029 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_up [2021-12-14 18:26:45,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 18:26:45,030 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_commit [2021-12-14 18:26:45,030 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_commit [2021-12-14 18:26:45,030 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2021-12-14 18:26:45,030 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2021-12-14 18:26:45,030 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-14 18:26:45,030 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-14 18:26:45,030 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-14 18:26:45,030 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-14 18:26:45,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-14 18:26:45,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-14 18:26:45,031 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-14 18:26:45,031 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-14 18:26:45,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-14 18:26:45,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-14 18:26:45,034 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reinit_locked [2021-12-14 18:26:45,034 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reinit_locked [2021-12-14 18:26:45,034 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_phy_init [2021-12-14 18:26:45,034 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_phy_init [2021-12-14 18:26:45,034 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_intr [2021-12-14 18:26:45,034 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_intr [2021-12-14 18:26:45,034 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-14 18:26:45,034 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-14 18:26:45,035 INFO L130 BoogieDeclarations]: Found specification of procedure skb_transport_offset [2021-12-14 18:26:45,035 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_transport_offset [2021-12-14 18:26:45,036 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_open [2021-12-14 18:26:45,036 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_open [2021-12-14 18:26:45,036 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-14 18:26:45,036 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-14 18:26:45,036 INFO L130 BoogieDeclarations]: Found specification of procedure skb_network_header [2021-12-14 18:26:45,036 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_network_header [2021-12-14 18:26:45,036 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_irq_enable [2021-12-14 18:26:45,036 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_irq_enable [2021-12-14 18:26:45,036 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 18:26:45,037 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 18:26:45,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 18:26:45,037 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_netpoll [2021-12-14 18:26:45,037 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_netpoll [2021-12-14 18:26:45,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 18:26:45,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 18:26:45,037 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_read_eeprom [2021-12-14 18:26:45,037 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_read_eeprom [2021-12-14 18:26:45,037 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_suspend [2021-12-14 18:26:45,038 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_suspend [2021-12-14 18:26:45,038 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-14 18:26:45,038 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-14 18:26:45,038 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-14 18:26:45,038 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-14 18:26:45,038 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_nway_reset [2021-12-14 18:26:45,038 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_nway_reset [2021-12-14 18:26:45,038 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_105 [2021-12-14 18:26:45,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_105 [2021-12-14 18:26:45,039 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2021-12-14 18:26:45,039 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2021-12-14 18:26:45,039 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_request_irq [2021-12-14 18:26:45,039 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_request_irq [2021-12-14 18:26:45,039 INFO L130 BoogieDeclarations]: Found specification of procedure tcp_hdrlen [2021-12-14 18:26:45,039 INFO L138 BoogieDeclarations]: Found implementation of procedure tcp_hdrlen [2021-12-14 18:26:45,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-14 18:26:45,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-14 18:26:45,039 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-14 18:26:45,039 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-14 18:26:45,040 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-14 18:26:45,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2021-12-14 18:26:45,040 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_eeprom_len [2021-12-14 18:26:45,040 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_eeprom_len [2021-12-14 18:26:45,040 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2021-12-14 18:26:45,040 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2021-12-14 18:26:45,040 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-14 18:26:45,040 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-14 18:26:45,040 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_reset_hw [2021-12-14 18:26:45,041 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_reset_hw [2021-12-14 18:26:45,041 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-12-14 18:26:45,041 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-12-14 18:26:45,041 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-14 18:26:45,041 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-14 18:26:45,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 18:26:45,041 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2021-12-14 18:26:45,041 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2021-12-14 18:26:45,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-14 18:26:45,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-14 18:26:45,042 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_get_regs_len [2021-12-14 18:26:45,042 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_get_regs_len [2021-12-14 18:26:45,042 INFO L130 BoogieDeclarations]: Found specification of procedure atl1e_clean_rx_ring [2021-12-14 18:26:45,042 INFO L138 BoogieDeclarations]: Found implementation of procedure atl1e_clean_rx_ring [2021-12-14 18:26:45,868 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 18:26:45,870 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 18:26:46,053 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 18:26:53,397 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-14 18:26:53,485 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 18:26:53,507 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 18:26:53,507 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-14 18:26:53,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:26:53 BoogieIcfgContainer [2021-12-14 18:26:53,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 18:26:53,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 18:26:53,512 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 18:26:53,514 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 18:26:53,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:26:40" (1/3) ... [2021-12-14 18:26:53,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ca266d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:26:53, skipping insertion in model container [2021-12-14 18:26:53,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:26:44" (2/3) ... [2021-12-14 18:26:53,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50ca266d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:26:53, skipping insertion in model container [2021-12-14 18:26:53,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:26:53" (3/3) ... [2021-12-14 18:26:53,516 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-atheros-atl1e-atl1e.cil.i [2021-12-14 18:26:53,522 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 18:26:53,522 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 18:26:53,569 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 18:26:53,582 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 18:26:53,582 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 18:26:53,636 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) [2021-12-14 18:26:53,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2021-12-14 18:26:53,664 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:26:53,665 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] [2021-12-14 18:26:53,665 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:26:53,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:26:53,669 INFO L85 PathProgramCache]: Analyzing trace with hash -24091557, now seen corresponding path program 1 times [2021-12-14 18:26:53,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:26:53,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132967050] [2021-12-14 18:26:53,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:26:53,677 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:26:53,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:26:54,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:26:54,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:26:54,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:26:54,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:26:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:26:54,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:26:54,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:26:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:26:54,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:26:54,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:26:54,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:26:54,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:26:54,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:26:54,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:26:54,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:26:54,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:26:54,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:26:54,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:26:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:26:54,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:26:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:26:54,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:26:54,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:26:54,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-14 18:26:54,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:26:54,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-14 18:26:54,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:26:54,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-14 18:26:54,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2021-12-14 18:26:54,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:26:54,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:26:54,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:26:54,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-14 18:26:54,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-14 18:26:54,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:26:54,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 18:26:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-14 18:26:54,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:54,429 INFO L134 CoverageAnalysis]: Checked inductivity of 865 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 865 trivial. 0 not checked. [2021-12-14 18:26:54,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:26:54,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132967050] [2021-12-14 18:26:54,430 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132967050] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:26:54,430 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:26:54,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:26:54,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022481663] [2021-12-14 18:26:54,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:26:54,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:26:54,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:26:54,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:26:54,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:26:54,457 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) [2021-12-14 18:26:59,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:26:59,246 INFO L93 Difference]: Finished difference Result 7783 states and 10945 transitions. [2021-12-14 18:26:59,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:26:59,248 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 [2021-12-14 18:26:59,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:26:59,298 INFO L225 Difference]: With dead ends: 7783 [2021-12-14 18:26:59,299 INFO L226 Difference]: Without dead ends: 4893 [2021-12-14 18:26:59,314 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 [2021-12-14 18:26:59,317 INFO L933 BasicCegarLoop]: 4108 mSDtfsCounter, 3707 mSDsluCounter, 4515 mSDsCounter, 0 mSdLazyCounter, 2392 mSolverCounterSat, 1870 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s 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, 4.4s IncrementalHoareTripleChecker+Time [2021-12-14 18:26:59,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4243 Valid, 8623 Invalid, 4262 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1870 Valid, 2392 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2021-12-14 18:26:59,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4893 states. [2021-12-14 18:26:59,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4893 to 4656. [2021-12-14 18:26:59,533 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) [2021-12-14 18:26:59,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4656 states to 4656 states and 6408 transitions. [2021-12-14 18:26:59,560 INFO L78 Accepts]: Start accepts. Automaton has 4656 states and 6408 transitions. Word has length 231 [2021-12-14 18:26:59,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:26:59,564 INFO L470 AbstractCegarLoop]: Abstraction has 4656 states and 6408 transitions. [2021-12-14 18:26:59,564 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) [2021-12-14 18:26:59,564 INFO L276 IsEmpty]: Start isEmpty. Operand 4656 states and 6408 transitions. [2021-12-14 18:26:59,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2021-12-14 18:26:59,571 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:26:59,571 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] [2021-12-14 18:26:59,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 18:26:59,574 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:26:59,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:26:59,574 INFO L85 PathProgramCache]: Analyzing trace with hash 757183165, now seen corresponding path program 1 times [2021-12-14 18:26:59,574 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:26:59,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669834745] [2021-12-14 18:26:59,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:26:59,575 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:26:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:26:59,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:26:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:26:59,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:26:59,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:26:59,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:26:59,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:26:59,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:26:59,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:26:59,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:26:59,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:26:59,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:26:59,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:26:59,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:26:59,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:26:59,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:26:59,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:26:59,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:26:59,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:26:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:26:59,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:26:59,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:26:59,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:26:59,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:26:59,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-14 18:26:59,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:26:59,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-14 18:26:59,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:26:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-14 18:26:59,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-14 18:26:59,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-14 18:26:59,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-14 18:26:59,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:26:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-14 18:26:59,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2021-12-14 18:26:59,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:26:59,993 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2021-12-14 18:26:59,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:26:59,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669834745] [2021-12-14 18:26:59,994 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669834745] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:26:59,994 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:26:59,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:26:59,995 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191170874] [2021-12-14 18:26:59,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:26:59,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:26:59,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:26:59,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:26:59,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:27:00,000 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) [2021-12-14 18:27:06,124 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:27:09,514 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:27:10,962 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:27:15,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:27:15,072 INFO L93 Difference]: Finished difference Result 12961 states and 18069 transitions. [2021-12-14 18:27:15,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 18:27:15,073 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 [2021-12-14 18:27:15,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:27:15,109 INFO L225 Difference]: With dead ends: 12961 [2021-12-14 18:27:15,109 INFO L226 Difference]: Without dead ends: 8338 [2021-12-14 18:27:15,123 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 [2021-12-14 18:27:15,124 INFO L933 BasicCegarLoop]: 5266 mSDtfsCounter, 4923 mSDsluCounter, 6808 mSDsCounter, 0 mSdLazyCounter, 4740 mSolverCounterSat, 3219 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5353 SdHoareTripleChecker+Valid, 12074 SdHoareTripleChecker+Invalid, 7960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3219 IncrementalHoareTripleChecker+Valid, 4740 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2021-12-14 18:27:15,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5353 Valid, 12074 Invalid, 7960 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3219 Valid, 4740 Invalid, 1 Unknown, 0 Unchecked, 14.5s Time] [2021-12-14 18:27:15,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8338 states. [2021-12-14 18:27:15,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8338 to 7061. [2021-12-14 18:27:15,366 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) [2021-12-14 18:27:15,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7061 states to 7061 states and 9658 transitions. [2021-12-14 18:27:15,392 INFO L78 Accepts]: Start accepts. Automaton has 7061 states and 9658 transitions. Word has length 239 [2021-12-14 18:27:15,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:27:15,393 INFO L470 AbstractCegarLoop]: Abstraction has 7061 states and 9658 transitions. [2021-12-14 18:27:15,394 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) [2021-12-14 18:27:15,394 INFO L276 IsEmpty]: Start isEmpty. Operand 7061 states and 9658 transitions. [2021-12-14 18:27:15,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2021-12-14 18:27:15,400 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:27:15,400 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] [2021-12-14 18:27:15,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 18:27:15,401 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:27:15,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:27:15,401 INFO L85 PathProgramCache]: Analyzing trace with hash -2051024223, now seen corresponding path program 1 times [2021-12-14 18:27:15,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:27:15,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342261797] [2021-12-14 18:27:15,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:27:15,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:27:15,475 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 18:27:15,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [598503848] [2021-12-14 18:27:15,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:27:15,477 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 18:27:15,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:27:15,479 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) [2021-12-14 18:27:15,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-14 18:27:16,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:27:16,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 4059 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 18:27:16,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 18:27:17,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2021-12-14 18:27:17,157 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 18:27:17,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:27:17,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342261797] [2021-12-14 18:27:17,157 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-14 18:27:17,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598503848] [2021-12-14 18:27:17,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [598503848] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:27:17,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:27:17,158 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 18:27:17,158 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851180301] [2021-12-14 18:27:17,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:27:17,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 18:27:17,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:27:17,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 18:27:17,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 18:27:17,159 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) [2021-12-14 18:27:17,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:27:17,380 INFO L93 Difference]: Finished difference Result 14089 states and 19286 transitions. [2021-12-14 18:27:17,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 18:27:17,389 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 [2021-12-14 18:27:17,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:27:17,418 INFO L225 Difference]: With dead ends: 14089 [2021-12-14 18:27:17,418 INFO L226 Difference]: Without dead ends: 7061 [2021-12-14 18:27:17,438 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 [2021-12-14 18:27:17,442 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 [2021-12-14 18:27:17,443 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] [2021-12-14 18:27:17,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7061 states. [2021-12-14 18:27:17,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7061 to 7061. [2021-12-14 18:27:17,630 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) [2021-12-14 18:27:17,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7061 states to 7061 states and 9655 transitions. [2021-12-14 18:27:17,656 INFO L78 Accepts]: Start accepts. Automaton has 7061 states and 9655 transitions. Word has length 303 [2021-12-14 18:27:17,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:27:17,657 INFO L470 AbstractCegarLoop]: Abstraction has 7061 states and 9655 transitions. [2021-12-14 18:27:17,657 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) [2021-12-14 18:27:17,657 INFO L276 IsEmpty]: Start isEmpty. Operand 7061 states and 9655 transitions. [2021-12-14 18:27:17,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2021-12-14 18:27:17,663 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:27:17,663 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] [2021-12-14 18:27:17,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-14 18:27:17,878 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 [2021-12-14 18:27:17,879 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:27:17,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:27:17,879 INFO L85 PathProgramCache]: Analyzing trace with hash 1224467345, now seen corresponding path program 1 times [2021-12-14 18:27:17,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:27:17,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455449656] [2021-12-14 18:27:17,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:27:17,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:27:17,962 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 18:27:17,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [680882392] [2021-12-14 18:27:17,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:27:17,963 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 18:27:17,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:27:17,964 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) [2021-12-14 18:27:17,965 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-14 18:27:18,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:27:18,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 4060 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 18:27:18,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 18:27:19,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2021-12-14 18:27:19,498 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 18:27:19,498 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:27:19,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455449656] [2021-12-14 18:27:19,498 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-14 18:27:19,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680882392] [2021-12-14 18:27:19,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680882392] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:27:19,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:27:19,498 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 18:27:19,498 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070976848] [2021-12-14 18:27:19,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:27:19,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 18:27:19,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:27:19,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 18:27:19,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 18:27:19,499 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) [2021-12-14 18:27:19,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:27:19,647 INFO L93 Difference]: Finished difference Result 14089 states and 19280 transitions. [2021-12-14 18:27:19,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 18:27:19,647 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 [2021-12-14 18:27:19,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:27:19,692 INFO L225 Difference]: With dead ends: 14089 [2021-12-14 18:27:19,692 INFO L226 Difference]: Without dead ends: 7061 [2021-12-14 18:27:19,716 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 [2021-12-14 18:27:19,718 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 [2021-12-14 18:27:19,719 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] [2021-12-14 18:27:19,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7061 states. [2021-12-14 18:27:19,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7061 to 7061. [2021-12-14 18:27:19,982 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) [2021-12-14 18:27:20,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7061 states to 7061 states and 9652 transitions. [2021-12-14 18:27:20,006 INFO L78 Accepts]: Start accepts. Automaton has 7061 states and 9652 transitions. Word has length 304 [2021-12-14 18:27:20,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:27:20,007 INFO L470 AbstractCegarLoop]: Abstraction has 7061 states and 9652 transitions. [2021-12-14 18:27:20,008 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) [2021-12-14 18:27:20,008 INFO L276 IsEmpty]: Start isEmpty. Operand 7061 states and 9652 transitions. [2021-12-14 18:27:20,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2021-12-14 18:27:20,014 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:27:20,014 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] [2021-12-14 18:27:20,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-14 18:27:20,228 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 [2021-12-14 18:27:20,228 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:27:20,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:27:20,229 INFO L85 PathProgramCache]: Analyzing trace with hash -199992547, now seen corresponding path program 1 times [2021-12-14 18:27:20,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:27:20,229 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841639951] [2021-12-14 18:27:20,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:27:20,229 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:27:20,296 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 18:27:20,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1676278517] [2021-12-14 18:27:20,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:27:20,296 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 18:27:20,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:27:20,312 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) [2021-12-14 18:27:20,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-14 18:27:21,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:27:21,376 INFO L263 TraceCheckSpWp]: Trace formula consists of 4061 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 18:27:21,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 18:27:21,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2021-12-14 18:27:21,880 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 18:27:21,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:27:21,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841639951] [2021-12-14 18:27:21,880 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-14 18:27:21,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676278517] [2021-12-14 18:27:21,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676278517] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:27:21,880 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:27:21,880 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 18:27:21,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1813214374] [2021-12-14 18:27:21,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:27:21,881 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 18:27:21,881 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:27:21,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 18:27:21,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 18:27:21,881 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) [2021-12-14 18:27:22,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:27:22,031 INFO L93 Difference]: Finished difference Result 14089 states and 19274 transitions. [2021-12-14 18:27:22,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 18:27:22,032 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 [2021-12-14 18:27:22,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:27:22,061 INFO L225 Difference]: With dead ends: 14089 [2021-12-14 18:27:22,061 INFO L226 Difference]: Without dead ends: 7061 [2021-12-14 18:27:22,083 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 [2021-12-14 18:27:22,084 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 [2021-12-14 18:27:22,084 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] [2021-12-14 18:27:22,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7061 states. [2021-12-14 18:27:22,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7061 to 7061. [2021-12-14 18:27:22,364 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) [2021-12-14 18:27:22,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7061 states to 7061 states and 9649 transitions. [2021-12-14 18:27:22,390 INFO L78 Accepts]: Start accepts. Automaton has 7061 states and 9649 transitions. Word has length 305 [2021-12-14 18:27:22,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:27:22,391 INFO L470 AbstractCegarLoop]: Abstraction has 7061 states and 9649 transitions. [2021-12-14 18:27:22,391 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) [2021-12-14 18:27:22,391 INFO L276 IsEmpty]: Start isEmpty. Operand 7061 states and 9649 transitions. [2021-12-14 18:27:22,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2021-12-14 18:27:22,398 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:27:22,399 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] [2021-12-14 18:27:22,440 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-14 18:27:22,624 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 [2021-12-14 18:27:22,625 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:27:22,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:27:22,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1294059635, now seen corresponding path program 1 times [2021-12-14 18:27:22,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:27:22,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952903707] [2021-12-14 18:27:22,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:27:22,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:27:22,725 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 18:27:22,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1858339661] [2021-12-14 18:27:22,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:27:22,726 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 18:27:22,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:27:22,727 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) [2021-12-14 18:27:22,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-14 18:27:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:27:23,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 4062 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 18:27:23,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 18:27:24,326 INFO L134 CoverageAnalysis]: Checked inductivity of 1032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2021-12-14 18:27:24,328 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 18:27:24,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:27:24,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952903707] [2021-12-14 18:27:24,328 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-14 18:27:24,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858339661] [2021-12-14 18:27:24,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858339661] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:27:24,328 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:27:24,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 18:27:24,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238114462] [2021-12-14 18:27:24,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:27:24,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 18:27:24,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:27:24,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 18:27:24,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 18:27:24,330 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) [2021-12-14 18:27:24,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:27:24,479 INFO L93 Difference]: Finished difference Result 14089 states and 19268 transitions. [2021-12-14 18:27:24,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 18:27:24,480 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 [2021-12-14 18:27:24,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:27:24,505 INFO L225 Difference]: With dead ends: 14089 [2021-12-14 18:27:24,505 INFO L226 Difference]: Without dead ends: 7061 [2021-12-14 18:27:24,525 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 [2021-12-14 18:27:24,526 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 [2021-12-14 18:27:24,526 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] [2021-12-14 18:27:24,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7061 states. [2021-12-14 18:27:24,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7061 to 7061. [2021-12-14 18:27:24,795 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) [2021-12-14 18:27:24,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7061 states to 7061 states and 9646 transitions. [2021-12-14 18:27:24,817 INFO L78 Accepts]: Start accepts. Automaton has 7061 states and 9646 transitions. Word has length 306 [2021-12-14 18:27:24,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:27:24,818 INFO L470 AbstractCegarLoop]: Abstraction has 7061 states and 9646 transitions. [2021-12-14 18:27:24,818 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) [2021-12-14 18:27:24,818 INFO L276 IsEmpty]: Start isEmpty. Operand 7061 states and 9646 transitions. [2021-12-14 18:27:24,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2021-12-14 18:27:24,825 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:27:24,825 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] [2021-12-14 18:27:24,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-14 18:27:25,065 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 [2021-12-14 18:27:25,066 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:27:25,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:27:25,066 INFO L85 PathProgramCache]: Analyzing trace with hash -735884391, now seen corresponding path program 1 times [2021-12-14 18:27:25,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:27:25,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137192373] [2021-12-14 18:27:25,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:27:25,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:27:25,137 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 18:27:25,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [453851551] [2021-12-14 18:27:25,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:27:25,138 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 18:27:25,138 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:27:25,139 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) [2021-12-14 18:27:25,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-14 18:27:26,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:27:26,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 4063 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 18:27:26,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 18:27:26,628 INFO L134 CoverageAnalysis]: Checked inductivity of 1032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2021-12-14 18:27:26,628 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 18:27:26,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:27:26,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137192373] [2021-12-14 18:27:26,628 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-14 18:27:26,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453851551] [2021-12-14 18:27:26,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453851551] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:27:26,628 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:27:26,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 18:27:26,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108871368] [2021-12-14 18:27:26,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:27:26,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 18:27:26,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:27:26,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 18:27:26,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 18:27:26,629 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) [2021-12-14 18:27:26,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:27:26,795 INFO L93 Difference]: Finished difference Result 14089 states and 19262 transitions. [2021-12-14 18:27:26,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 18:27:26,796 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 [2021-12-14 18:27:26,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:27:26,823 INFO L225 Difference]: With dead ends: 14089 [2021-12-14 18:27:26,823 INFO L226 Difference]: Without dead ends: 7061 [2021-12-14 18:27:26,841 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 [2021-12-14 18:27:26,842 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 [2021-12-14 18:27:26,842 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] [2021-12-14 18:27:26,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7061 states. [2021-12-14 18:27:27,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7061 to 7061. [2021-12-14 18:27:27,033 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) [2021-12-14 18:27:27,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7061 states to 7061 states and 9643 transitions. [2021-12-14 18:27:27,058 INFO L78 Accepts]: Start accepts. Automaton has 7061 states and 9643 transitions. Word has length 307 [2021-12-14 18:27:27,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:27:27,060 INFO L470 AbstractCegarLoop]: Abstraction has 7061 states and 9643 transitions. [2021-12-14 18:27:27,060 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) [2021-12-14 18:27:27,060 INFO L276 IsEmpty]: Start isEmpty. Operand 7061 states and 9643 transitions. [2021-12-14 18:27:27,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2021-12-14 18:27:27,068 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:27:27,068 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, 1, 1, 1, 1] [2021-12-14 18:27:27,094 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-14 18:27:27,287 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 [2021-12-14 18:27:27,287 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:27:27,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:27:27,287 INFO L85 PathProgramCache]: Analyzing trace with hash -497804407, now seen corresponding path program 1 times [2021-12-14 18:27:27,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:27:27,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715478455] [2021-12-14 18:27:27,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:27:27,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:27:27,424 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 18:27:27,425 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1294007083] [2021-12-14 18:27:27,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:27:27,425 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 18:27:27,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:27:27,440 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) [2021-12-14 18:27:27,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-14 18:27:28,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:27:28,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 4064 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 18:27:28,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 18:27:28,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2021-12-14 18:27:28,936 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 18:27:28,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:27:28,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715478455] [2021-12-14 18:27:28,937 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-14 18:27:28,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294007083] [2021-12-14 18:27:28,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1294007083] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:27:28,937 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:27:28,937 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 18:27:28,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833216901] [2021-12-14 18:27:28,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:27:28,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 18:27:28,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:27:28,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 18:27:28,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 18:27:28,940 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) [2021-12-14 18:27:29,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:27:29,099 INFO L93 Difference]: Finished difference Result 14089 states and 19256 transitions. [2021-12-14 18:27:29,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 18:27:29,099 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 [2021-12-14 18:27:29,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:27:29,139 INFO L225 Difference]: With dead ends: 14089 [2021-12-14 18:27:29,153 INFO L226 Difference]: Without dead ends: 7061 [2021-12-14 18:27:29,181 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 [2021-12-14 18:27:29,191 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 [2021-12-14 18:27:29,192 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] [2021-12-14 18:27:29,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7061 states. [2021-12-14 18:27:29,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7061 to 7061. [2021-12-14 18:27:29,453 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) [2021-12-14 18:27:29,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7061 states to 7061 states and 9640 transitions. [2021-12-14 18:27:29,474 INFO L78 Accepts]: Start accepts. Automaton has 7061 states and 9640 transitions. Word has length 308 [2021-12-14 18:27:29,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:27:29,475 INFO L470 AbstractCegarLoop]: Abstraction has 7061 states and 9640 transitions. [2021-12-14 18:27:29,475 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) [2021-12-14 18:27:29,475 INFO L276 IsEmpty]: Start isEmpty. Operand 7061 states and 9640 transitions. [2021-12-14 18:27:29,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2021-12-14 18:27:29,480 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:27:29,481 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] [2021-12-14 18:27:29,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-14 18:27:29,704 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 [2021-12-14 18:27:29,704 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:27:29,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:27:29,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1592742891, now seen corresponding path program 1 times [2021-12-14 18:27:29,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:27:29,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331593616] [2021-12-14 18:27:29,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:27:29,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:27:29,792 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 18:27:29,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1768288148] [2021-12-14 18:27:29,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:27:29,793 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 18:27:29,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:27:29,794 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) [2021-12-14 18:27:29,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-14 18:27:30,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:27:30,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 4065 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 18:27:30,866 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 18:27:31,373 INFO L134 CoverageAnalysis]: Checked inductivity of 1032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2021-12-14 18:27:31,373 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 18:27:31,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:27:31,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331593616] [2021-12-14 18:27:31,374 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-14 18:27:31,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768288148] [2021-12-14 18:27:31,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768288148] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:27:31,374 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:27:31,374 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 18:27:31,374 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739222914] [2021-12-14 18:27:31,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:27:31,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 18:27:31,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:27:31,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 18:27:31,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 18:27:31,376 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) [2021-12-14 18:27:31,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:27:31,550 INFO L93 Difference]: Finished difference Result 14089 states and 19250 transitions. [2021-12-14 18:27:31,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 18:27:31,551 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 [2021-12-14 18:27:31,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:27:31,599 INFO L225 Difference]: With dead ends: 14089 [2021-12-14 18:27:31,604 INFO L226 Difference]: Without dead ends: 7061 [2021-12-14 18:27:31,623 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 [2021-12-14 18:27:31,624 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 [2021-12-14 18:27:31,624 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] [2021-12-14 18:27:31,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7061 states. [2021-12-14 18:27:31,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7061 to 7061. [2021-12-14 18:27:31,824 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) [2021-12-14 18:27:31,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7061 states to 7061 states and 9637 transitions. [2021-12-14 18:27:31,845 INFO L78 Accepts]: Start accepts. Automaton has 7061 states and 9637 transitions. Word has length 309 [2021-12-14 18:27:31,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:27:31,846 INFO L470 AbstractCegarLoop]: Abstraction has 7061 states and 9637 transitions. [2021-12-14 18:27:31,846 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) [2021-12-14 18:27:31,846 INFO L276 IsEmpty]: Start isEmpty. Operand 7061 states and 9637 transitions. [2021-12-14 18:27:31,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2021-12-14 18:27:31,851 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:27:31,852 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] [2021-12-14 18:27:31,893 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-14 18:27:32,075 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 [2021-12-14 18:27:32,075 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:27:32,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:27:32,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1061580923, now seen corresponding path program 1 times [2021-12-14 18:27:32,076 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:27:32,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263754354] [2021-12-14 18:27:32,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:27:32,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:27:32,135 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 18:27:32,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1132795502] [2021-12-14 18:27:32,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:27:32,136 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 18:27:32,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:27:32,148 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) [2021-12-14 18:27:32,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-14 18:27:33,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:27:33,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 4066 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 18:27:33,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 18:27:33,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2021-12-14 18:27:33,777 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 18:27:33,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:27:33,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263754354] [2021-12-14 18:27:33,777 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-14 18:27:33,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132795502] [2021-12-14 18:27:33,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132795502] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:27:33,777 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:27:33,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 18:27:33,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706145618] [2021-12-14 18:27:33,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:27:33,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 18:27:33,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:27:33,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 18:27:33,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 18:27:33,779 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) [2021-12-14 18:27:34,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:27:34,014 INFO L93 Difference]: Finished difference Result 14089 states and 19244 transitions. [2021-12-14 18:27:34,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 18:27:34,015 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 310 [2021-12-14 18:27:34,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:27:34,036 INFO L225 Difference]: With dead ends: 14089 [2021-12-14 18:27:34,037 INFO L226 Difference]: Without dead ends: 7061 [2021-12-14 18:27:34,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 308 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 18:27:34,055 INFO L933 BasicCegarLoop]: 3846 mSDtfsCounter, 3667 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3667 SdHoareTripleChecker+Valid, 3846 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 [2021-12-14 18:27:34,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3667 Valid, 3846 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 18:27:34,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7061 states. [2021-12-14 18:27:34,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7061 to 7061. [2021-12-14 18:27:34,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7061 states, 4834 states have (on average 1.2449317335539924) internal successors, (6018), 4895 states have internal predecessors, (6018), 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) [2021-12-14 18:27:34,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7061 states to 7061 states and 9634 transitions. [2021-12-14 18:27:34,279 INFO L78 Accepts]: Start accepts. Automaton has 7061 states and 9634 transitions. Word has length 310 [2021-12-14 18:27:34,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:27:34,279 INFO L470 AbstractCegarLoop]: Abstraction has 7061 states and 9634 transitions. [2021-12-14 18:27:34,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has 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) [2021-12-14 18:27:34,280 INFO L276 IsEmpty]: Start isEmpty. Operand 7061 states and 9634 transitions. [2021-12-14 18:27:34,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2021-12-14 18:27:34,285 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:27:34,285 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, 1] [2021-12-14 18:27:34,310 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-14 18:27:34,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-14 18:27:34,503 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:27:34,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:27:34,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1660912495, now seen corresponding path program 1 times [2021-12-14 18:27:34,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:27:34,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140264385] [2021-12-14 18:27:34,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:27:34,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:27:34,566 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 18:27:34,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [264924548] [2021-12-14 18:27:34,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:27:34,567 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 18:27:34,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:27:34,584 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 18:27:34,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-14 18:27:35,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:27:35,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 4067 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 18:27:35,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 18:27:36,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2021-12-14 18:27:36,107 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 18:27:36,107 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:27:36,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140264385] [2021-12-14 18:27:36,107 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-14 18:27:36,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264924548] [2021-12-14 18:27:36,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [264924548] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:27:36,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:27:36,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 18:27:36,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139110495] [2021-12-14 18:27:36,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:27:36,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 18:27:36,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:27:36,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 18:27:36,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 18:27:36,138 INFO L87 Difference]: Start difference. First operand 7061 states and 9634 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 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) [2021-12-14 18:27:36,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:27:36,427 INFO L93 Difference]: Finished difference Result 14264 states and 19437 transitions. [2021-12-14 18:27:36,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 18:27:36,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 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 311 [2021-12-14 18:27:36,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:27:36,449 INFO L225 Difference]: With dead ends: 14264 [2021-12-14 18:27:36,449 INFO L226 Difference]: Without dead ends: 7236 [2021-12-14 18:27:36,463 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 18:27:36,465 INFO L933 BasicCegarLoop]: 3898 mSDtfsCounter, 3593 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3593 SdHoareTripleChecker+Valid, 4032 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:27:36,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3593 Valid, 4032 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 18:27:36,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7236 states. [2021-12-14 18:27:36,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7236 to 7236. [2021-12-14 18:27:36,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7236 states, 4952 states have (on average 1.2439418416801293) internal successors, (6160), 5013 states have internal predecessors, (6160), 1835 states have call successors, (1835), 449 states have call predecessors, (1835), 448 states have return successors, (1835), 1825 states have call predecessors, (1835), 1835 states have call successors, (1835) [2021-12-14 18:27:36,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7236 states to 7236 states and 9830 transitions. [2021-12-14 18:27:36,685 INFO L78 Accepts]: Start accepts. Automaton has 7236 states and 9830 transitions. Word has length 311 [2021-12-14 18:27:36,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:27:36,686 INFO L470 AbstractCegarLoop]: Abstraction has 7236 states and 9830 transitions. [2021-12-14 18:27:36,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 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) [2021-12-14 18:27:36,686 INFO L276 IsEmpty]: Start isEmpty. Operand 7236 states and 9830 transitions. [2021-12-14 18:27:36,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 313 [2021-12-14 18:27:36,691 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:27:36,691 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, 1, 1] [2021-12-14 18:27:36,718 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-12-14 18:27:36,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 18:27:36,908 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:27:36,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:27:36,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1349161857, now seen corresponding path program 1 times [2021-12-14 18:27:36,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:27:36,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994818568] [2021-12-14 18:27:36,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:27:36,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:27:36,964 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 18:27:36,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [214953195] [2021-12-14 18:27:36,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:27:36,965 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 18:27:36,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:27:36,966 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 18:27:36,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-14 18:27:38,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:27:38,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 4068 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 18:27:38,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 18:27:38,706 INFO L134 CoverageAnalysis]: Checked inductivity of 1032 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2021-12-14 18:27:38,706 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 18:27:38,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:27:38,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994818568] [2021-12-14 18:27:38,706 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2021-12-14 18:27:38,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214953195] [2021-12-14 18:27:38,706 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214953195] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:27:38,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:27:38,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 18:27:38,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277511353] [2021-12-14 18:27:38,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:27:38,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 18:27:38,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:27:38,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 18:27:38,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 18:27:38,708 INFO L87 Difference]: Start difference. First operand 7236 states and 9830 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 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) [2021-12-14 18:27:38,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:27:38,932 INFO L93 Difference]: Finished difference Result 14439 states and 19630 transitions. [2021-12-14 18:27:38,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 18:27:38,932 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 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 312 [2021-12-14 18:27:38,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:27:39,010 INFO L225 Difference]: With dead ends: 14439 [2021-12-14 18:27:39,011 INFO L226 Difference]: Without dead ends: 7236 [2021-12-14 18:27:39,021 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 311 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 18:27:39,024 INFO L933 BasicCegarLoop]: 3844 mSDtfsCounter, 3663 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3663 SdHoareTripleChecker+Valid, 3844 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 [2021-12-14 18:27:39,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3663 Valid, 3844 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 18:27:39,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7236 states. [2021-12-14 18:27:39,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7236 to 7236. [2021-12-14 18:27:39,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7236 states, 4952 states have (on average 1.243336025848142) internal successors, (6157), 5013 states have internal predecessors, (6157), 1835 states have call successors, (1835), 449 states have call predecessors, (1835), 448 states have return successors, (1835), 1825 states have call predecessors, (1835), 1835 states have call successors, (1835) [2021-12-14 18:27:39,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7236 states to 7236 states and 9827 transitions. [2021-12-14 18:27:39,460 INFO L78 Accepts]: Start accepts. Automaton has 7236 states and 9827 transitions. Word has length 312 [2021-12-14 18:27:39,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:27:39,460 INFO L470 AbstractCegarLoop]: Abstraction has 7236 states and 9827 transitions. [2021-12-14 18:27:39,460 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 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) [2021-12-14 18:27:39,460 INFO L276 IsEmpty]: Start isEmpty. Operand 7236 states and 9827 transitions. [2021-12-14 18:27:39,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2021-12-14 18:27:39,471 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:27:39,471 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, 1, 1, 1] [2021-12-14 18:27:39,496 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-14 18:27:39,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-14 18:27:39,696 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:27:39,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:27:39,697 INFO L85 PathProgramCache]: Analyzing trace with hash 286702861, now seen corresponding path program 1 times [2021-12-14 18:27:39,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:27:39,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469531426] [2021-12-14 18:27:39,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:27:39,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:27:39,757 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-14 18:27:39,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2044525216] [2021-12-14 18:27:39,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:27:39,757 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 18:27:39,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:27:39,759 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 18:27:39,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-14 18:27:40,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:27:40,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 4069 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-14 18:27:40,808 INFO L286 TraceCheckSpWp]: Computing forward predicates...