./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c621b62-313f-4659-998e-edffe122349e/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c621b62-313f-4659-998e-edffe122349e/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c621b62-313f-4659-998e-edffe122349e/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c621b62-313f-4659-998e-edffe122349e/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c621b62-313f-4659-998e-edffe122349e/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c621b62-313f-4659-998e-edffe122349e/bin/utaipan-7li7fVZpFI --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ee9ed3068f3b87df6cf8a5420a13d45365c61647fcde61bb8adac513f0f70bd0 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 03:58:04,696 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:58:04,700 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:58:04,736 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:58:04,736 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:58:04,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:58:04,740 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:58:04,742 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:58:04,744 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:58:04,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:58:04,747 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:58:04,749 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:58:04,749 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:58:04,751 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:58:04,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:58:04,754 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:58:04,755 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:58:04,756 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:58:04,758 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:58:04,761 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:58:04,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:58:04,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:58:04,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:58:04,767 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:58:04,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:58:04,772 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:58:04,773 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:58:04,774 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:58:04,775 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:58:04,776 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:58:04,777 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:58:04,778 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:58:04,779 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:58:04,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:58:04,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:58:04,783 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:58:04,784 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:58:04,784 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:58:04,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:58:04,786 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:58:04,787 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:58:04,788 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c621b62-313f-4659-998e-edffe122349e/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 03:58:04,817 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:58:04,818 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:58:04,818 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:58:04,819 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:58:04,820 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:58:04,820 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:58:04,820 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:58:04,821 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:58:04,827 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:58:04,828 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:58:04,828 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:58:04,828 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:58:04,829 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:58:04,829 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:58:04,829 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:58:04,830 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:58:04,830 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:58:04,830 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:58:04,831 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:58:04,832 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:58:04,832 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:58:04,832 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:58:04,832 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:58:04,833 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:58:04,833 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:58:04,833 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:58:04,834 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:58:04,834 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:58:04,834 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:58:04,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:58:04,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:58:04,835 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:58:04,836 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:58:04,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:58:04,836 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:58:04,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:58:04,837 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:58:04,837 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:58:04,837 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c621b62-313f-4659-998e-edffe122349e/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c621b62-313f-4659-998e-edffe122349e/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ee9ed3068f3b87df6cf8a5420a13d45365c61647fcde61bb8adac513f0f70bd0 [2022-11-03 03:58:05,197 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:58:05,230 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:58:05,234 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:58:05,236 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:58:05,237 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:58:05,239 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c621b62-313f-4659-998e-edffe122349e/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2022-11-03 03:58:05,341 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c621b62-313f-4659-998e-edffe122349e/bin/utaipan-7li7fVZpFI/data/49dbf5d87/44dd51b84c4a42dcb5252fa9b371c221/FLAG9768eae4e [2022-11-03 03:58:06,781 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:58:06,782 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c621b62-313f-4659-998e-edffe122349e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2022-11-03 03:58:06,859 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c621b62-313f-4659-998e-edffe122349e/bin/utaipan-7li7fVZpFI/data/49dbf5d87/44dd51b84c4a42dcb5252fa9b371c221/FLAG9768eae4e [2022-11-03 03:58:07,327 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c621b62-313f-4659-998e-edffe122349e/bin/utaipan-7li7fVZpFI/data/49dbf5d87/44dd51b84c4a42dcb5252fa9b371c221 [2022-11-03 03:58:07,331 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:58:07,333 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:58:07,334 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:58:07,335 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:58:07,339 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:58:07,341 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:58:07" (1/1) ... [2022-11-03 03:58:07,342 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@595e31d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:58:07, skipping insertion in model container [2022-11-03 03:58:07,343 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:58:07" (1/1) ... [2022-11-03 03:58:07,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:58:07,558 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:58:12,746 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c621b62-313f-4659-998e-edffe122349e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[464872,464885] [2022-11-03 03:58:12,750 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c621b62-313f-4659-998e-edffe122349e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[465017,465030] [2022-11-03 03:58:12,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:58:12,889 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:58:13,688 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c621b62-313f-4659-998e-edffe122349e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[464872,464885] [2022-11-03 03:58:13,689 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c621b62-313f-4659-998e-edffe122349e/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[465017,465030] [2022-11-03 03:58:13,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:58:14,184 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:58:14,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:58:14 WrapperNode [2022-11-03 03:58:14,185 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:58:14,186 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:58:14,187 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:58:14,188 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:58:14,197 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:58:14" (1/1) ... [2022-11-03 03:58:14,385 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:58:14" (1/1) ... [2022-11-03 03:58:14,796 INFO L138 Inliner]: procedures = 567, calls = 4460, calls flagged for inlining = 273, calls inlined = 252, statements flattened = 9108 [2022-11-03 03:58:14,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:58:14,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:58:14,799 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:58:14,799 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:58:14,810 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:58:14" (1/1) ... [2022-11-03 03:58:14,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:58:14" (1/1) ... [2022-11-03 03:58:14,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:58:14" (1/1) ... [2022-11-03 03:58:14,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:58:14" (1/1) ... [2022-11-03 03:58:15,230 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:58:14" (1/1) ... [2022-11-03 03:58:15,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:58:14" (1/1) ... [2022-11-03 03:58:15,341 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:58:14" (1/1) ... [2022-11-03 03:58:15,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:58:14" (1/1) ... [2022-11-03 03:58:15,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:58:15,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:58:15,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:58:15,423 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:58:15,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:58:14" (1/1) ... [2022-11-03 03:58:15,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:58:15,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c621b62-313f-4659-998e-edffe122349e/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:58:15,471 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c621b62-313f-4659-998e-edffe122349e/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:58:15,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3c621b62-313f-4659-998e-edffe122349e/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:58:15,545 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-03 03:58:15,545 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-03 03:58:15,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 03:58:15,546 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 03:58:15,546 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-03 03:58:15,546 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-03 03:58:15,547 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2022-11-03 03:58:15,547 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2022-11-03 03:58:15,547 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_nway_reset [2022-11-03 03:58:15,547 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_nway_reset [2022-11-03 03:58:15,548 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 03:58:15,548 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 03:58:15,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_88 [2022-11-03 03:58:15,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_88 [2022-11-03 03:58:15,549 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 03:58:15,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 03:58:15,549 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-03 03:58:15,549 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-03 03:58:15,549 INFO L130 BoogieDeclarations]: Found specification of procedure set_8021q_mode [2022-11-03 03:58:15,550 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8021q_mode [2022-11-03 03:58:15,550 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_remove_one [2022-11-03 03:58:15,550 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_remove_one [2022-11-03 03:58:15,550 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-03 03:58:15,551 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-03 03:58:15,551 INFO L130 BoogieDeclarations]: Found specification of procedure issue_and_wait [2022-11-03 03:58:15,551 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_and_wait [2022-11-03 03:58:15,552 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 03:58:15,552 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 03:58:15,553 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-11-03 03:58:15,553 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-11-03 03:58:15,553 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-11-03 03:58:15,554 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-11-03 03:58:15,554 INFO L130 BoogieDeclarations]: Found specification of procedure window_write32 [2022-11-03 03:58:15,554 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write32 [2022-11-03 03:58:15,554 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-03 03:58:15,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-03 03:58:15,555 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-03 03:58:15,555 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-03 03:58:15,555 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 03:58:15,555 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 03:58:15,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_window_lock_of_vortex_private [2022-11-03 03:58:15,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_window_lock_of_vortex_private [2022-11-03 03:58:15,556 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_vortex_private [2022-11-03 03:58:15,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_vortex_private [2022-11-03 03:58:15,557 INFO L130 BoogieDeclarations]: Found specification of procedure window_set [2022-11-03 03:58:15,558 INFO L138 BoogieDeclarations]: Found implementation of procedure window_set [2022-11-03 03:58:15,558 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 03:58:15,560 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 03:58:15,560 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 03:58:15,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 03:58:15,561 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 03:58:15,561 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 03:58:15,561 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-03 03:58:15,562 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-03 03:58:15,562 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-03 03:58:15,563 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-03 03:58:15,563 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-03 03:58:15,564 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-03 03:58:15,564 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 03:58:15,564 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 03:58:15,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 03:58:15,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 03:58:15,565 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-11-03 03:58:15,565 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-11-03 03:58:15,565 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 03:58:15,566 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 03:58:15,566 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-03 03:58:15,566 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-03 03:58:15,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 03:58:15,566 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tx_timestamp [2022-11-03 03:58:15,568 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tx_timestamp [2022-11-03 03:58:15,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-03 03:58:15,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-03 03:58:15,568 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 03:58:15,568 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 03:58:15,569 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_118 [2022-11-03 03:58:15,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_118 [2022-11-03 03:58:15,569 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 03:58:15,570 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 03:58:15,570 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_114 [2022-11-03 03:58:15,571 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_114 [2022-11-03 03:58:15,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 03:58:15,572 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_tx_timeout [2022-11-03 03:58:15,572 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_tx_timeout [2022-11-03 03:58:15,572 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-03 03:58:15,572 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-03 03:58:15,577 INFO L130 BoogieDeclarations]: Found specification of procedure ioport_map [2022-11-03 03:58:15,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ioport_map [2022-11-03 03:58:15,578 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 03:58:15,578 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 03:58:15,579 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-03 03:58:15,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-03 03:58:15,579 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 03:58:15,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 03:58:15,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 03:58:15,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_106 [2022-11-03 03:58:15,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_106 [2022-11-03 03:58:15,581 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 03:58:15,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 03:58:15,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 03:58:15,581 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_interrupt [2022-11-03 03:58:15,582 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_interrupt [2022-11-03 03:58:15,582 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-11-03 03:58:15,582 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-11-03 03:58:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 03:58:15,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 03:58:15,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 03:58:15,584 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 03:58:15,585 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-03 03:58:15,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-03 03:58:15,588 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 03:58:15,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 03:58:15,589 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 03:58:15,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 03:58:15,592 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 03:58:15,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 03:58:15,593 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_set_duplex [2022-11-03 03:58:15,593 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_set_duplex [2022-11-03 03:58:15,598 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_132 [2022-11-03 03:58:15,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_132 [2022-11-03 03:58:15,599 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2022-11-03 03:58:15,599 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2022-11-03 03:58:15,599 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-03 03:58:15,599 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-03 03:58:15,600 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_error [2022-11-03 03:58:15,600 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_error [2022-11-03 03:58:15,600 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 03:58:15,600 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 03:58:15,600 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_close [2022-11-03 03:58:15,601 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_close [2022-11-03 03:58:15,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 03:58:15,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-03 03:58:15,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-03 03:58:15,602 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2022-11-03 03:58:15,602 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2022-11-03 03:58:15,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-03 03:58:15,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-03 03:58:15,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-03 03:58:15,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-03 03:58:15,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2022-11-03 03:58:15,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2022-11-03 03:58:15,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-03 03:58:15,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-03 03:58:15,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:58:15,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 03:58:15,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 03:58:15,604 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 03:58:15,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 03:58:15,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 03:58:15,605 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-11-03 03:58:15,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-11-03 03:58:15,605 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 03:58:15,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 03:58:15,606 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-03 03:58:15,606 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-03 03:58:15,606 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 03:58:15,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 03:58:15,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-03 03:58:15,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-03 03:58:15,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-03 03:58:15,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-03 03:58:15,608 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_set_WOL [2022-11-03 03:58:15,608 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_set_WOL [2022-11-03 03:58:15,608 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-03 03:58:15,608 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-03 03:58:15,608 INFO L130 BoogieDeclarations]: Found specification of procedure window_write16 [2022-11-03 03:58:15,609 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write16 [2022-11-03 03:58:15,609 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-11-03 03:58:15,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-11-03 03:58:15,609 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-03 03:58:15,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-03 03:58:15,610 INFO L130 BoogieDeclarations]: Found specification of procedure window_read8 [2022-11-03 03:58:15,610 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read8 [2022-11-03 03:58:15,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_vortex_cleanup_16_2 [2022-11-03 03:58:15,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_vortex_cleanup_16_2 [2022-11-03 03:58:15,611 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-03 03:58:15,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-03 03:58:15,611 INFO L130 BoogieDeclarations]: Found specification of procedure update_stats [2022-11-03 03:58:15,611 INFO L138 BoogieDeclarations]: Found implementation of procedure update_stats [2022-11-03 03:58:15,612 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 03:58:15,612 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 03:58:15,612 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-03 03:58:15,614 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-03 03:58:15,615 INFO L130 BoogieDeclarations]: Found specification of procedure poll_vortex [2022-11-03 03:58:15,615 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_vortex [2022-11-03 03:58:15,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-03 03:58:15,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-03 03:58:15,616 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_window_lock_of_vortex_private [2022-11-03 03:58:15,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_window_lock_of_vortex_private [2022-11-03 03:58:15,616 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_check_media [2022-11-03 03:58:15,616 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_check_media [2022-11-03 03:58:15,616 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-03 03:58:15,617 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-03 03:58:15,617 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_rx [2022-11-03 03:58:15,617 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_rx [2022-11-03 03:58:15,617 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-11-03 03:58:15,618 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-11-03 03:58:15,618 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_open [2022-11-03 03:58:15,618 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_open [2022-11-03 03:58:15,618 INFO L130 BoogieDeclarations]: Found specification of procedure dump_tx_ring [2022-11-03 03:58:15,618 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_tx_ring [2022-11-03 03:58:15,619 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-03 03:58:15,619 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-03 03:58:15,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:58:15,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:58:15,620 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_probe1 [2022-11-03 03:58:15,620 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_probe1 [2022-11-03 03:58:15,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 03:58:15,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 03:58:15,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 03:58:15,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 03:58:15,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-03 03:58:15,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-03 03:58:15,621 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2022-11-03 03:58:15,621 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2022-11-03 03:58:15,622 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-03 03:58:15,622 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-03 03:58:15,622 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 03:58:15,622 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 03:58:15,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-03 03:58:15,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-03 03:58:15,623 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 03:58:15,623 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 03:58:15,623 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-03 03:58:15,624 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-03 03:58:15,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 03:58:15,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_111 [2022-11-03 03:58:15,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_111 [2022-11-03 03:58:15,624 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-03 03:58:15,625 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-03 03:58:15,625 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 03:58:15,625 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 03:58:15,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 03:58:15,626 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_suspend [2022-11-03 03:58:15,626 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_suspend [2022-11-03 03:58:15,627 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_interrupt [2022-11-03 03:58:15,632 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_interrupt [2022-11-03 03:58:15,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 03:58:15,633 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 03:58:15,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 03:58:15,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-03 03:58:15,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-03 03:58:15,634 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 03:58:15,634 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 03:58:15,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 03:58:15,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 03:58:15,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-03 03:58:15,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-03 03:58:15,638 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-03 03:58:15,639 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-03 03:58:15,639 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2022-11-03 03:58:15,639 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2022-11-03 03:58:15,639 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_resume [2022-11-03 03:58:15,639 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_resume [2022-11-03 03:58:15,640 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2022-11-03 03:58:15,640 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2022-11-03 03:58:15,640 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-03 03:58:15,640 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-03 03:58:15,640 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_rx [2022-11-03 03:58:15,640 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_rx [2022-11-03 03:58:15,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_105 [2022-11-03 03:58:15,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_105 [2022-11-03 03:58:15,641 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-03 03:58:15,641 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-03 03:58:15,641 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 03:58:15,642 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 03:58:15,642 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-03 03:58:15,642 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-03 03:58:15,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_133 [2022-11-03 03:58:15,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_133 [2022-11-03 03:58:15,643 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 03:58:15,643 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 03:58:15,643 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_delay [2022-11-03 03:58:15,643 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_delay [2022-11-03 03:58:15,643 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 03:58:15,644 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_down [2022-11-03 03:58:15,644 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_down [2022-11-03 03:58:15,644 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-03 03:58:15,644 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-03 03:58:15,644 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-03 03:58:15,645 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-03 03:58:15,645 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 03:58:15,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 03:58:15,645 INFO L130 BoogieDeclarations]: Found specification of procedure window_write8 [2022-11-03 03:58:15,646 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write8 [2022-11-03 03:58:15,646 INFO L130 BoogieDeclarations]: Found specification of procedure window_read32 [2022-11-03 03:58:15,646 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read32 [2022-11-03 03:58:15,646 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-03 03:58:15,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-03 03:58:15,646 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32_rep [2022-11-03 03:58:15,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32_rep [2022-11-03 03:58:15,647 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-03 03:58:15,647 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-03 03:58:15,647 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_up [2022-11-03 03:58:15,647 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_up [2022-11-03 03:58:15,648 INFO L130 BoogieDeclarations]: Found specification of procedure window_read16 [2022-11-03 03:58:15,648 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read16 [2022-11-03 03:58:15,648 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 03:58:15,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 03:58:15,648 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-03 03:58:15,649 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-03 03:58:15,649 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-03 03:58:15,649 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-03 03:58:15,649 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-03 03:58:15,649 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-03 03:58:15,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_vortex_private [2022-11-03 03:58:15,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_vortex_private [2022-11-03 03:58:15,650 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 03:58:15,650 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 03:58:15,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_112 [2022-11-03 03:58:15,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_112 [2022-11-03 03:58:15,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_113 [2022-11-03 03:58:15,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_113 [2022-11-03 03:58:15,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:58:15,651 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 03:58:15,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 03:58:15,652 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-03 03:58:15,652 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-03 03:58:17,236 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:58:17,242 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:58:19,538 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 03:58:29,059 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-03 03:58:29,263 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:58:33,580 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:58:33,580 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 03:58:33,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:58:33 BoogieIcfgContainer [2022-11-03 03:58:33,588 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:58:33,592 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:58:33,592 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:58:33,597 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:58:33,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:58:07" (1/3) ... [2022-11-03 03:58:33,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e38db2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:58:33, skipping insertion in model container [2022-11-03 03:58:33,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:58:14" (2/3) ... [2022-11-03 03:58:33,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e38db2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:58:33, skipping insertion in model container [2022-11-03 03:58:33,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:58:33" (3/3) ... [2022-11-03 03:58:33,603 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2022-11-03 03:58:33,638 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:58:33,638 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:58:33,834 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:58:33,844 INFO L357 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=FINITE_AUTOMATA, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@31a4f11e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:58:33,845 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:58:33,861 INFO L276 IsEmpty]: Start isEmpty. Operand has 2273 states, 1319 states have (on average 1.332827899924185) internal successors, (1758), 1388 states have internal predecessors, (1758), 803 states have call successors, (803), 151 states have call predecessors, (803), 150 states have return successors, (794), 779 states have call predecessors, (794), 794 states have call successors, (794) [2022-11-03 03:58:33,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2022-11-03 03:58:33,942 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:58:33,943 INFO L195 NwaCegarLoop]: trace histogram [19, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:58:33,944 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:58:33,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:58:33,951 INFO L85 PathProgramCache]: Analyzing trace with hash 316822121, now seen corresponding path program 1 times [2022-11-03 03:58:33,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:58:33,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1889122460] [2022-11-03 03:58:33,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:58:33,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:58:34,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:58:35,987 INFO L134 CoverageAnalysis]: Checked inductivity of 1158 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2022-11-03 03:58:35,988 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:58:35,989 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1889122460] [2022-11-03 03:58:35,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1889122460] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:58:35,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:58:35,990 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:58:35,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633035223] [2022-11-03 03:58:35,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:58:36,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:58:36,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:58:36,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:58:36,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:58:36,059 INFO L87 Difference]: Start difference. First operand has 2273 states, 1319 states have (on average 1.332827899924185) internal successors, (1758), 1388 states have internal predecessors, (1758), 803 states have call successors, (803), 151 states have call predecessors, (803), 150 states have return successors, (794), 779 states have call predecessors, (794), 794 states have call successors, (794) Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-03 03:58:40,307 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:58:44,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:58:44,659 INFO L93 Difference]: Finished difference Result 6493 states and 9664 transitions. [2022-11-03 03:58:44,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:58:44,666 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 222 [2022-11-03 03:58:44,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:58:44,732 INFO L225 Difference]: With dead ends: 6493 [2022-11-03 03:58:44,732 INFO L226 Difference]: Without dead ends: 4156 [2022-11-03 03:58:44,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:58:44,761 INFO L413 NwaCegarLoop]: 3586 mSDtfsCounter, 2911 mSDsluCounter, 3297 mSDsCounter, 0 mSdLazyCounter, 964 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2912 SdHoareTripleChecker+Valid, 6441 SdHoareTripleChecker+Invalid, 982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 964 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-11-03 03:58:44,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2912 Valid, 6441 Invalid, 982 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 964 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2022-11-03 03:58:44,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4156 states. [2022-11-03 03:58:45,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4156 to 4152. [2022-11-03 03:58:45,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4152 states, 2442 states have (on average 1.3255528255528255) internal successors, (3237), 2572 states have internal predecessors, (3237), 1421 states have call successors, (1421), 288 states have call predecessors, (1421), 288 states have return successors, (1422), 1390 states have call predecessors, (1422), 1421 states have call successors, (1422) [2022-11-03 03:58:45,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4152 states to 4152 states and 6080 transitions. [2022-11-03 03:58:45,228 INFO L78 Accepts]: Start accepts. Automaton has 4152 states and 6080 transitions. Word has length 222 [2022-11-03 03:58:45,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:58:45,234 INFO L495 AbstractCegarLoop]: Abstraction has 4152 states and 6080 transitions. [2022-11-03 03:58:45,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-03 03:58:45,235 INFO L276 IsEmpty]: Start isEmpty. Operand 4152 states and 6080 transitions. [2022-11-03 03:58:45,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2022-11-03 03:58:45,251 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:58:45,252 INFO L195 NwaCegarLoop]: trace histogram [19, 17, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:58:45,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:58:45,253 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:58:45,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:58:45,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1946518292, now seen corresponding path program 1 times [2022-11-03 03:58:45,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:58:45,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835794544] [2022-11-03 03:58:45,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:58:45,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:58:45,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:58:46,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1158 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1158 trivial. 0 not checked. [2022-11-03 03:58:46,500 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:58:46,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835794544] [2022-11-03 03:58:46,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835794544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:58:46,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:58:46,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:58:46,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143746043] [2022-11-03 03:58:46,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:58:46,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:58:46,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:58:46,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:58:46,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:58:46,513 INFO L87 Difference]: Start difference. First operand 4152 states and 6080 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-03 03:58:51,161 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:58:53,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:58:56,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:58:56,576 INFO L93 Difference]: Finished difference Result 11938 states and 17473 transitions. [2022-11-03 03:58:56,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:58:56,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 223 [2022-11-03 03:58:56,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:58:56,678 INFO L225 Difference]: With dead ends: 11938 [2022-11-03 03:58:56,678 INFO L226 Difference]: Without dead ends: 7821 [2022-11-03 03:58:56,716 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:58:56,718 INFO L413 NwaCegarLoop]: 4033 mSDtfsCounter, 2764 mSDsluCounter, 3164 mSDsCounter, 0 mSdLazyCounter, 1087 mSolverCounterSat, 29 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2766 SdHoareTripleChecker+Valid, 6775 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1087 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:58:56,718 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2766 Valid, 6775 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1087 Invalid, 1 Unknown, 0 Unchecked, 9.3s Time] [2022-11-03 03:58:56,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7821 states. [2022-11-03 03:58:57,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7821 to 7814. [2022-11-03 03:58:57,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7814 states, 4583 states have (on average 1.3176958324241763) internal successors, (6039), 4838 states have internal predecessors, (6039), 2670 states have call successors, (2670), 560 states have call predecessors, (2670), 560 states have return successors, (2674), 2607 states have call predecessors, (2674), 2670 states have call successors, (2674) [2022-11-03 03:58:57,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7814 states to 7814 states and 11383 transitions. [2022-11-03 03:58:57,557 INFO L78 Accepts]: Start accepts. Automaton has 7814 states and 11383 transitions. Word has length 223 [2022-11-03 03:58:57,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:58:57,558 INFO L495 AbstractCegarLoop]: Abstraction has 7814 states and 11383 transitions. [2022-11-03 03:58:57,559 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2022-11-03 03:58:57,559 INFO L276 IsEmpty]: Start isEmpty. Operand 7814 states and 11383 transitions. [2022-11-03 03:58:57,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2022-11-03 03:58:57,572 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:58:57,573 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 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] [2022-11-03 03:58:57,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:58:57,574 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:58:57,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:58:57,575 INFO L85 PathProgramCache]: Analyzing trace with hash -888132008, now seen corresponding path program 1 times [2022-11-03 03:58:57,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:58:57,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093961081] [2022-11-03 03:58:57,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:58:57,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:58:57,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:58:58,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1124 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1124 trivial. 0 not checked. [2022-11-03 03:58:58,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:58:58,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093961081] [2022-11-03 03:58:58,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2093961081] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:58:58,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:58:58,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:58:58,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360170456] [2022-11-03 03:58:58,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:58:58,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:58:58,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:58:58,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:58:58,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:58:58,468 INFO L87 Difference]: Start difference. First operand 7814 states and 11383 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-03 03:59:01,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:03,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:07,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:59:07,791 INFO L93 Difference]: Finished difference Result 22696 states and 33154 transitions. [2022-11-03 03:59:07,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:59:07,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 236 [2022-11-03 03:59:07,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:59:07,974 INFO L225 Difference]: With dead ends: 22696 [2022-11-03 03:59:07,974 INFO L226 Difference]: Without dead ends: 14917 [2022-11-03 03:59:08,034 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:59:08,040 INFO L413 NwaCegarLoop]: 3528 mSDtfsCounter, 2856 mSDsluCounter, 3200 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2858 SdHoareTripleChecker+Valid, 6283 SdHoareTripleChecker+Invalid, 914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:59:08,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2858 Valid, 6283 Invalid, 914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 910 Invalid, 1 Unknown, 0 Unchecked, 8.3s Time] [2022-11-03 03:59:08,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14917 states. [2022-11-03 03:59:09,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14917 to 14906. [2022-11-03 03:59:09,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14906 states, 8734 states have (on average 1.315548431417449) internal successors, (11490), 9220 states have internal predecessors, (11490), 5074 states have call successors, (5074), 1105 states have call predecessors, (5074), 1097 states have return successors, (5245), 4924 states have call predecessors, (5245), 5074 states have call successors, (5245) [2022-11-03 03:59:09,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14906 states to 14906 states and 21809 transitions. [2022-11-03 03:59:09,393 INFO L78 Accepts]: Start accepts. Automaton has 14906 states and 21809 transitions. Word has length 236 [2022-11-03 03:59:09,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:59:09,395 INFO L495 AbstractCegarLoop]: Abstraction has 14906 states and 21809 transitions. [2022-11-03 03:59:09,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-03 03:59:09,396 INFO L276 IsEmpty]: Start isEmpty. Operand 14906 states and 21809 transitions. [2022-11-03 03:59:09,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2022-11-03 03:59:09,412 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:59:09,412 INFO L195 NwaCegarLoop]: trace histogram [19, 17, 17, 17, 17, 17, 17, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:59:09,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:59:09,413 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:59:09,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:59:09,414 INFO L85 PathProgramCache]: Analyzing trace with hash -882869683, now seen corresponding path program 1 times [2022-11-03 03:59:09,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:59:09,415 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880395537] [2022-11-03 03:59:09,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:09,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:59:09,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:10,091 INFO L134 CoverageAnalysis]: Checked inductivity of 1167 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1167 trivial. 0 not checked. [2022-11-03 03:59:10,091 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:59:10,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880395537] [2022-11-03 03:59:10,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880395537] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:59:10,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:59:10,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:59:10,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013889458] [2022-11-03 03:59:10,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:59:10,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:59:10,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:59:10,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:59:10,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:59:10,095 INFO L87 Difference]: Start difference. First operand 14906 states and 21809 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-03 03:59:14,942 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:17,236 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:22,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:22,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:59:22,483 INFO L93 Difference]: Finished difference Result 43667 states and 63848 transitions. [2022-11-03 03:59:22,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:59:22,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) Word has length 247 [2022-11-03 03:59:22,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:59:22,723 INFO L225 Difference]: With dead ends: 43667 [2022-11-03 03:59:22,723 INFO L226 Difference]: Without dead ends: 28796 [2022-11-03 03:59:22,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:59:22,828 INFO L413 NwaCegarLoop]: 4107 mSDtfsCounter, 2878 mSDsluCounter, 3213 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2880 SdHoareTripleChecker+Valid, 6880 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2022-11-03 03:59:22,830 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2880 Valid, 6880 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1081 Invalid, 2 Unknown, 0 Unchecked, 10.7s Time] [2022-11-03 03:59:22,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28796 states. [2022-11-03 03:59:24,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28796 to 28777. [2022-11-03 03:59:25,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28777 states, 16871 states have (on average 1.312251793017604) internal successors, (22139), 17835 states have internal predecessors, (22139), 9760 states have call successors, (9760), 2161 states have call predecessors, (9760), 2145 states have return successors, (10094), 9455 states have call predecessors, (10094), 9760 states have call successors, (10094) [2022-11-03 03:59:25,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28777 states to 28777 states and 41993 transitions. [2022-11-03 03:59:25,226 INFO L78 Accepts]: Start accepts. Automaton has 28777 states and 41993 transitions. Word has length 247 [2022-11-03 03:59:25,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:59:25,228 INFO L495 AbstractCegarLoop]: Abstraction has 28777 states and 41993 transitions. [2022-11-03 03:59:25,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (27), 3 states have call predecessors, (27), 3 states have call successors, (27) [2022-11-03 03:59:25,228 INFO L276 IsEmpty]: Start isEmpty. Operand 28777 states and 41993 transitions. [2022-11-03 03:59:25,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-11-03 03:59:25,253 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:59:25,253 INFO L195 NwaCegarLoop]: trace histogram [20, 17, 17, 17, 17, 17, 17, 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] [2022-11-03 03:59:25,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:59:25,254 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:59:25,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:59:25,255 INFO L85 PathProgramCache]: Analyzing trace with hash 412680149, now seen corresponding path program 1 times [2022-11-03 03:59:25,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:59:25,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431733437] [2022-11-03 03:59:25,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:25,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:59:25,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:26,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1217 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1214 trivial. 0 not checked. [2022-11-03 03:59:26,272 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:59:26,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431733437] [2022-11-03 03:59:26,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431733437] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:59:26,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:59:26,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:59:26,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543813802] [2022-11-03 03:59:26,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:59:26,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:59:26,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:59:26,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:59:26,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:59:26,275 INFO L87 Difference]: Start difference. First operand 28777 states and 41993 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-03 03:59:29,782 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:35,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:59:35,514 INFO L93 Difference]: Finished difference Result 60897 states and 88571 transitions. [2022-11-03 03:59:35,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:59:35,515 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 262 [2022-11-03 03:59:35,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:59:35,752 INFO L225 Difference]: With dead ends: 60897 [2022-11-03 03:59:35,753 INFO L226 Difference]: Without dead ends: 32155 [2022-11-03 03:59:36,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:59:36,116 INFO L413 NwaCegarLoop]: 3550 mSDtfsCounter, 2219 mSDsluCounter, 3198 mSDsCounter, 0 mSdLazyCounter, 957 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2220 SdHoareTripleChecker+Valid, 6307 SdHoareTripleChecker+Invalid, 962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 957 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:59:36,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2220 Valid, 6307 Invalid, 962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 957 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2022-11-03 03:59:36,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32155 states. [2022-11-03 03:59:38,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32155 to 32113. [2022-11-03 03:59:38,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32113 states, 18818 states have (on average 1.3069401636730789) internal successors, (24594), 19870 states have internal predecessors, (24594), 10817 states have call successors, (10817), 2495 states have call predecessors, (10817), 2477 states have return successors, (11170), 10492 states have call predecessors, (11170), 10817 states have call successors, (11170) [2022-11-03 03:59:38,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32113 states to 32113 states and 46581 transitions. [2022-11-03 03:59:38,912 INFO L78 Accepts]: Start accepts. Automaton has 32113 states and 46581 transitions. Word has length 262 [2022-11-03 03:59:38,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:59:38,913 INFO L495 AbstractCegarLoop]: Abstraction has 32113 states and 46581 transitions. [2022-11-03 03:59:38,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2022-11-03 03:59:38,914 INFO L276 IsEmpty]: Start isEmpty. Operand 32113 states and 46581 transitions. [2022-11-03 03:59:38,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2022-11-03 03:59:38,939 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:59:38,940 INFO L195 NwaCegarLoop]: trace histogram [22, 17, 17, 17, 17, 17, 17, 5, 5, 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] [2022-11-03 03:59:38,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 03:59:38,941 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:59:38,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:59:38,942 INFO L85 PathProgramCache]: Analyzing trace with hash -399293891, now seen corresponding path program 1 times [2022-11-03 03:59:38,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:59:38,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309611883] [2022-11-03 03:59:38,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:38,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:59:39,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:39,856 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1308 trivial. 0 not checked. [2022-11-03 03:59:39,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:59:39,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309611883] [2022-11-03 03:59:39,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309611883] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:59:39,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:59:39,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:59:39,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681357073] [2022-11-03 03:59:39,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:59:39,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:59:39,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:59:39,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:59:39,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:59:39,860 INFO L87 Difference]: Start difference. First operand 32113 states and 46581 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-11-03 03:59:43,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:46,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 03:59:51,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:59:51,051 INFO L93 Difference]: Finished difference Result 75381 states and 109424 transitions. [2022-11-03 03:59:51,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:59:51,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 271 [2022-11-03 03:59:51,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:59:51,350 INFO L225 Difference]: With dead ends: 75381 [2022-11-03 03:59:51,350 INFO L226 Difference]: Without dead ends: 45918 [2022-11-03 03:59:51,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:59:51,517 INFO L413 NwaCegarLoop]: 5213 mSDtfsCounter, 2817 mSDsluCounter, 3195 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2818 SdHoareTripleChecker+Valid, 7970 SdHoareTripleChecker+Invalid, 1362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:59:51,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2818 Valid, 7970 Invalid, 1362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1345 Invalid, 2 Unknown, 0 Unchecked, 9.1s Time] [2022-11-03 03:59:51,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45918 states. [2022-11-03 03:59:55,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45918 to 45904. [2022-11-03 03:59:55,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45904 states, 26907 states have (on average 1.306240011892816) internal successors, (35147), 28407 states have internal predecessors, (35147), 15443 states have call successors, (15443), 3579 states have call predecessors, (15443), 3553 states have return successors, (15942), 14977 states have call predecessors, (15942), 15443 states have call successors, (15942) [2022-11-03 03:59:55,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45904 states to 45904 states and 66532 transitions. [2022-11-03 03:59:55,453 INFO L78 Accepts]: Start accepts. Automaton has 45904 states and 66532 transitions. Word has length 271 [2022-11-03 03:59:55,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:59:55,454 INFO L495 AbstractCegarLoop]: Abstraction has 45904 states and 66532 transitions. [2022-11-03 03:59:55,454 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2022-11-03 03:59:55,454 INFO L276 IsEmpty]: Start isEmpty. Operand 45904 states and 66532 transitions. [2022-11-03 03:59:55,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2022-11-03 03:59:55,475 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:59:55,476 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 17, 17, 17, 17, 17, 3, 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] [2022-11-03 03:59:55,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 03:59:55,476 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:59:55,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:59:55,477 INFO L85 PathProgramCache]: Analyzing trace with hash -49817962, now seen corresponding path program 1 times [2022-11-03 03:59:55,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:59:55,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863038943] [2022-11-03 03:59:55,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:59:55,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:59:55,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:59:56,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1130 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1130 trivial. 0 not checked. [2022-11-03 03:59:56,517 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:59:56,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863038943] [2022-11-03 03:59:56,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863038943] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:59:56,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:59:56,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:59:56,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533530357] [2022-11-03 03:59:56,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:59:56,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:59:56,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:59:56,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:59:56,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:59:56,522 INFO L87 Difference]: Start difference. First operand 45904 states and 66532 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-03 03:59:58,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:02,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:09,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:00:09,110 INFO L93 Difference]: Finished difference Result 121242 states and 174862 transitions. [2022-11-03 04:00:09,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:00:09,112 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 281 [2022-11-03 04:00:09,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:00:09,658 INFO L225 Difference]: With dead ends: 121242 [2022-11-03 04:00:09,659 INFO L226 Difference]: Without dead ends: 75373 [2022-11-03 04:00:09,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:00:09,916 INFO L413 NwaCegarLoop]: 3573 mSDtfsCounter, 2640 mSDsluCounter, 3148 mSDsCounter, 0 mSdLazyCounter, 975 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2640 SdHoareTripleChecker+Valid, 6303 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 975 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-11-03 04:00:09,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2640 Valid, 6303 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 975 Invalid, 2 Unknown, 0 Unchecked, 9.4s Time] [2022-11-03 04:00:10,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75373 states. [2022-11-03 04:00:13,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75373 to 75339. [2022-11-03 04:00:13,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75339 states, 44215 states have (on average 1.2940178672396245) internal successors, (57215), 46575 states have internal predecessors, (57215), 25060 states have call successors, (25060), 6139 states have call predecessors, (25060), 6063 states have return successors, (25949), 24259 states have call predecessors, (25949), 25060 states have call successors, (25949) [2022-11-03 04:00:14,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75339 states to 75339 states and 108224 transitions. [2022-11-03 04:00:14,554 INFO L78 Accepts]: Start accepts. Automaton has 75339 states and 108224 transitions. Word has length 281 [2022-11-03 04:00:14,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:00:14,555 INFO L495 AbstractCegarLoop]: Abstraction has 75339 states and 108224 transitions. [2022-11-03 04:00:14,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-03 04:00:14,556 INFO L276 IsEmpty]: Start isEmpty. Operand 75339 states and 108224 transitions. [2022-11-03 04:00:14,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2022-11-03 04:00:14,583 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:00:14,583 INFO L195 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:00:14,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 04:00:14,584 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:00:14,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:00:14,584 INFO L85 PathProgramCache]: Analyzing trace with hash -55083158, now seen corresponding path program 1 times [2022-11-03 04:00:14,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:00:14,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374834341] [2022-11-03 04:00:14,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:00:14,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:00:15,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 04:00:15,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1440 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 1420 trivial. 0 not checked. [2022-11-03 04:00:15,771 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 04:00:15,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374834341] [2022-11-03 04:00:15,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374834341] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 04:00:15,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 04:00:15,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 04:00:15,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112747174] [2022-11-03 04:00:15,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 04:00:15,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 04:00:15,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 04:00:15,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 04:00:15,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:00:15,775 INFO L87 Difference]: Start difference. First operand 75339 states and 108224 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-03 04:00:17,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:19,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:21,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:24,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 04:00:32,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 04:00:32,520 INFO L93 Difference]: Finished difference Result 185867 states and 267159 transitions. [2022-11-03 04:00:32,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 04:00:32,524 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 302 [2022-11-03 04:00:32,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 04:00:33,707 INFO L225 Difference]: With dead ends: 185867 [2022-11-03 04:00:33,707 INFO L226 Difference]: Without dead ends: 110667 [2022-11-03 04:00:34,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 04:00:34,099 INFO L413 NwaCegarLoop]: 5277 mSDtfsCounter, 2883 mSDsluCounter, 3212 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 9 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2885 SdHoareTripleChecker+Valid, 8048 SdHoareTripleChecker+Invalid, 1356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2022-11-03 04:00:34,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2885 Valid, 8048 Invalid, 1356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1344 Invalid, 3 Unknown, 0 Unchecked, 11.8s Time] [2022-11-03 04:00:34,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110667 states. [2022-11-03 04:00:39,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110667 to 110613. [2022-11-03 04:00:39,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110613 states, 64942 states have (on average 1.2934002648517138) internal successors, (83996), 68448 states have internal predecessors, (83996), 36762 states have call successors, (36762), 9020 states have call predecessors, (36762), 8908 states have return successors, (38080), 35561 states have call predecessors, (38080), 36762 states have call successors, (38080) [2022-11-03 04:00:40,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110613 states to 110613 states and 158838 transitions. [2022-11-03 04:00:40,669 INFO L78 Accepts]: Start accepts. Automaton has 110613 states and 158838 transitions. Word has length 302 [2022-11-03 04:00:40,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 04:00:40,670 INFO L495 AbstractCegarLoop]: Abstraction has 110613 states and 158838 transitions. [2022-11-03 04:00:40,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2022-11-03 04:00:40,671 INFO L276 IsEmpty]: Start isEmpty. Operand 110613 states and 158838 transitions. [2022-11-03 04:00:40,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2022-11-03 04:00:40,712 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 04:00:40,712 INFO L195 NwaCegarLoop]: trace histogram [24, 17, 17, 17, 17, 17, 17, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 04:00:40,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 04:00:40,713 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 04:00:40,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 04:00:40,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1843179172, now seen corresponding path program 1 times [2022-11-03 04:00:40,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 04:00:40,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645404999] [2022-11-03 04:00:40,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 04:00:40,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 04:00:41,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat