./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aba47-be43-41c1-bb54-ad40e5fc1120/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aba47-be43-41c1-bb54-ad40e5fc1120/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aba47-be43-41c1-bb54-ad40e5fc1120/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aba47-be43-41c1-bb54-ad40e5fc1120/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aba47-be43-41c1-bb54-ad40e5fc1120/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aba47-be43-41c1-bb54-ad40e5fc1120/bin/utaipan-Q6hlc19bkW --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 004fcd1800da3fcc8c5839d85d0662ed24df5100e10ec8a5024be56f561eab28 --- 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-4e7fbc6 [2022-11-23 13:53:55,512 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 13:53:55,514 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 13:53:55,540 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 13:53:55,541 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 13:53:55,542 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 13:53:55,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 13:53:55,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 13:53:55,547 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 13:53:55,548 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 13:53:55,549 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 13:53:55,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 13:53:55,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 13:53:55,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 13:53:55,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 13:53:55,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 13:53:55,555 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 13:53:55,556 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 13:53:55,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 13:53:55,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 13:53:55,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 13:53:55,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 13:53:55,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 13:53:55,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 13:53:55,569 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 13:53:55,570 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 13:53:55,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 13:53:55,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 13:53:55,572 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 13:53:55,573 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 13:53:55,573 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 13:53:55,574 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 13:53:55,575 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 13:53:55,576 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 13:53:55,577 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 13:53:55,577 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 13:53:55,578 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 13:53:55,578 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 13:53:55,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 13:53:55,579 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 13:53:55,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 13:53:55,581 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aba47-be43-41c1-bb54-ad40e5fc1120/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 13:53:55,610 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 13:53:55,610 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 13:53:55,610 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 13:53:55,611 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 13:53:55,611 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 13:53:55,612 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 13:53:55,612 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 13:53:55,612 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 13:53:55,612 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 13:53:55,613 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 13:53:55,613 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 13:53:55,613 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 13:53:55,613 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 13:53:55,613 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 13:53:55,614 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 13:53:55,614 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 13:53:55,614 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 13:53:55,614 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 13:53:55,615 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 13:53:55,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 13:53:55,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 13:53:55,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 13:53:55,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 13:53:55,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 13:53:55,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 13:53:55,616 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 13:53:55,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 13:53:55,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 13:53:55,617 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 13:53:55,617 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:53:55,618 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 13:53:55,618 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 13:53:55,618 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 13:53:55,618 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 13:53:55,618 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 13:53:55,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 13:53:55,619 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 13:53:55,619 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 13:53:55,619 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_bf2aba47-be43-41c1-bb54-ad40e5fc1120/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aba47-be43-41c1-bb54-ad40e5fc1120/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 004fcd1800da3fcc8c5839d85d0662ed24df5100e10ec8a5024be56f561eab28 [2022-11-23 13:53:55,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 13:53:55,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 13:53:55,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 13:53:55,886 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 13:53:55,887 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 13:53:55,888 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aba47-be43-41c1-bb54-ad40e5fc1120/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2022-11-23 13:53:58,994 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 13:53:59,709 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 13:53:59,710 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aba47-be43-41c1-bb54-ad40e5fc1120/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2022-11-23 13:53:59,765 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aba47-be43-41c1-bb54-ad40e5fc1120/bin/utaipan-Q6hlc19bkW/data/50193e6d6/7b5e1739efb843c7911d4f843bc5f1e6/FLAGe7f6a8baa [2022-11-23 13:53:59,784 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aba47-be43-41c1-bb54-ad40e5fc1120/bin/utaipan-Q6hlc19bkW/data/50193e6d6/7b5e1739efb843c7911d4f843bc5f1e6 [2022-11-23 13:53:59,789 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 13:53:59,791 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 13:53:59,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 13:53:59,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 13:53:59,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 13:53:59,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:53:59" (1/1) ... [2022-11-23 13:53:59,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47d0a963 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:53:59, skipping insertion in model container [2022-11-23 13:53:59,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:53:59" (1/1) ... [2022-11-23 13:53:59,809 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 13:54:00,051 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 13:54:04,079 WARN L237 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_bf2aba47-be43-41c1-bb54-ad40e5fc1120/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[452511,452524] [2022-11-23 13:54:04,084 WARN L237 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_bf2aba47-be43-41c1-bb54-ad40e5fc1120/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[452656,452669] [2022-11-23 13:54:04,125 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:54:04,192 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 13:54:04,780 WARN L237 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_bf2aba47-be43-41c1-bb54-ad40e5fc1120/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[452511,452524] [2022-11-23 13:54:04,780 WARN L237 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_bf2aba47-be43-41c1-bb54-ad40e5fc1120/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[452656,452669] [2022-11-23 13:54:04,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:54:05,064 INFO L208 MainTranslator]: Completed translation [2022-11-23 13:54:05,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05 WrapperNode [2022-11-23 13:54:05,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 13:54:05,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 13:54:05,067 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 13:54:05,067 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 13:54:05,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2022-11-23 13:54:05,236 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2022-11-23 13:54:05,545 INFO L138 Inliner]: procedures = 548, calls = 4437, calls flagged for inlining = 251, calls inlined = 230, statements flattened = 8867 [2022-11-23 13:54:05,546 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 13:54:05,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 13:54:05,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 13:54:05,547 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 13:54:05,557 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2022-11-23 13:54:05,557 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2022-11-23 13:54:05,601 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2022-11-23 13:54:05,602 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2022-11-23 13:54:05,778 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2022-11-23 13:54:05,817 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2022-11-23 13:54:05,934 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2022-11-23 13:54:05,965 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2022-11-23 13:54:06,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 13:54:06,017 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 13:54:06,017 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 13:54:06,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 13:54:06,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (1/1) ... [2022-11-23 13:54:06,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:54:06,037 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aba47-be43-41c1-bb54-ad40e5fc1120/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:54:06,053 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aba47-be43-41c1-bb54-ad40e5fc1120/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 13:54:06,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aba47-be43-41c1-bb54-ad40e5fc1120/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 13:54:06,099 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_122 [2022-11-23 13:54:06,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_122 [2022-11-23 13:54:06,099 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-23 13:54:06,100 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-23 13:54:06,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 13:54:06,100 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 13:54:06,100 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-23 13:54:06,100 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-23 13:54:06,101 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2022-11-23 13:54:06,101 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2022-11-23 13:54:06,101 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_nway_reset [2022-11-23 13:54:06,101 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_nway_reset [2022-11-23 13:54:06,101 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-23 13:54:06,101 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-23 13:54:06,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_88 [2022-11-23 13:54:06,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_88 [2022-11-23 13:54:06,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_107 [2022-11-23 13:54:06,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_107 [2022-11-23 13:54:06,102 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 13:54:06,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 13:54:06,103 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-23 13:54:06,103 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-23 13:54:06,103 INFO L130 BoogieDeclarations]: Found specification of procedure set_8021q_mode [2022-11-23 13:54:06,104 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8021q_mode [2022-11-23 13:54:06,104 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_remove_one [2022-11-23 13:54:06,105 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_remove_one [2022-11-23 13:54:06,106 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-23 13:54:06,106 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-23 13:54:06,106 INFO L130 BoogieDeclarations]: Found specification of procedure issue_and_wait [2022-11-23 13:54:06,106 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_and_wait [2022-11-23 13:54:06,106 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-23 13:54:06,106 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-23 13:54:06,107 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-11-23 13:54:06,107 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-11-23 13:54:06,107 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-11-23 13:54:06,108 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-11-23 13:54:06,108 INFO L130 BoogieDeclarations]: Found specification of procedure window_write32 [2022-11-23 13:54:06,108 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write32 [2022-11-23 13:54:06,108 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-23 13:54:06,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-23 13:54:06,108 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-23 13:54:06,109 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-23 13:54:06,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_5 [2022-11-23 13:54:06,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_5 [2022-11-23 13:54:06,109 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-23 13:54:06,109 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-23 13:54:06,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_window_lock_of_vortex_private [2022-11-23 13:54:06,110 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_window_lock_of_vortex_private [2022-11-23 13:54:06,111 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_vortex_private [2022-11-23 13:54:06,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_vortex_private [2022-11-23 13:54:06,111 INFO L130 BoogieDeclarations]: Found specification of procedure window_set [2022-11-23 13:54:06,111 INFO L138 BoogieDeclarations]: Found implementation of procedure window_set [2022-11-23 13:54:06,111 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-23 13:54:06,111 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-23 13:54:06,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-23 13:54:06,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-23 13:54:06,112 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-23 13:54:06,112 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-23 13:54:06,112 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-23 13:54:06,113 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-23 13:54:06,113 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-23 13:54:06,113 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-23 13:54:06,113 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-23 13:54:06,114 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-23 13:54:06,114 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-23 13:54:06,114 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-23 13:54:06,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 13:54:06,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 13:54:06,115 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-11-23 13:54:06,115 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-11-23 13:54:06,116 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-23 13:54:06,116 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-23 13:54:06,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_5_2 [2022-11-23 13:54:06,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_5_2 [2022-11-23 13:54:06,117 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-23 13:54:06,117 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-23 13:54:06,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 13:54:06,117 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tx_timestamp [2022-11-23 13:54:06,118 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tx_timestamp [2022-11-23 13:54:06,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-23 13:54:06,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-23 13:54:06,119 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-23 13:54:06,119 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-23 13:54:06,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_118 [2022-11-23 13:54:06,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_118 [2022-11-23 13:54:06,120 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-23 13:54:06,120 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-23 13:54:06,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_114 [2022-11-23 13:54:06,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_114 [2022-11-23 13:54:06,121 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 13:54:06,121 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_tx_timeout [2022-11-23 13:54:06,121 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_tx_timeout [2022-11-23 13:54:06,122 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-23 13:54:06,122 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-23 13:54:06,122 INFO L130 BoogieDeclarations]: Found specification of procedure ioport_map [2022-11-23 13:54:06,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ioport_map [2022-11-23 13:54:06,122 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-23 13:54:06,123 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-23 13:54:06,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-23 13:54:06,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-23 13:54:06,123 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-23 13:54:06,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-23 13:54:06,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 13:54:06,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_106 [2022-11-23 13:54:06,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_106 [2022-11-23 13:54:06,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-23 13:54:06,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-23 13:54:06,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 13:54:06,126 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_interrupt [2022-11-23 13:54:06,129 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_interrupt [2022-11-23 13:54:06,129 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-11-23 13:54:06,130 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-11-23 13:54:06,130 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-23 13:54:06,130 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-23 13:54:06,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 13:54:06,132 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 13:54:06,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-23 13:54:06,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-23 13:54:06,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-23 13:54:06,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-23 13:54:06,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-23 13:54:06,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-23 13:54:06,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-23 13:54:06,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-23 13:54:06,141 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_set_duplex [2022-11-23 13:54:06,141 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_set_duplex [2022-11-23 13:54:06,141 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_132 [2022-11-23 13:54:06,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_132 [2022-11-23 13:54:06,141 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2022-11-23 13:54:06,141 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2022-11-23 13:54:06,142 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-23 13:54:06,142 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-23 13:54:06,142 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_error [2022-11-23 13:54:06,142 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_error [2022-11-23 13:54:06,142 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-23 13:54:06,142 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-23 13:54:06,143 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_close [2022-11-23 13:54:06,143 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_close [2022-11-23 13:54:06,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 13:54:06,143 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2022-11-23 13:54:06,143 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2022-11-23 13:54:06,143 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-23 13:54:06,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-23 13:54:06,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 13:54:06,144 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-23 13:54:06,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-23 13:54:06,144 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-23 13:54:06,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-23 13:54:06,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 13:54:06,145 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-11-23 13:54:06,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-11-23 13:54:06,145 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 13:54:06,145 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 13:54:06,145 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-23 13:54:06,145 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-23 13:54:06,146 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-23 13:54:06,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-23 13:54:06,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-23 13:54:06,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-23 13:54:06,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-23 13:54:06,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-23 13:54:06,147 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_set_WOL [2022-11-23 13:54:06,147 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_set_WOL [2022-11-23 13:54:06,147 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-23 13:54:06,147 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-23 13:54:06,147 INFO L130 BoogieDeclarations]: Found specification of procedure window_write16 [2022-11-23 13:54:06,147 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write16 [2022-11-23 13:54:06,148 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-11-23 13:54:06,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-11-23 13:54:06,148 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-23 13:54:06,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-23 13:54:06,148 INFO L130 BoogieDeclarations]: Found specification of procedure window_read8 [2022-11-23 13:54:06,148 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read8 [2022-11-23 13:54:06,149 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-23 13:54:06,149 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-23 13:54:06,149 INFO L130 BoogieDeclarations]: Found specification of procedure update_stats [2022-11-23 13:54:06,149 INFO L138 BoogieDeclarations]: Found implementation of procedure update_stats [2022-11-23 13:54:06,149 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-23 13:54:06,149 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-23 13:54:06,149 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-23 13:54:06,150 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-23 13:54:06,150 INFO L130 BoogieDeclarations]: Found specification of procedure poll_vortex [2022-11-23 13:54:06,150 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_vortex [2022-11-23 13:54:06,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-23 13:54:06,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-23 13:54:06,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_window_lock_of_vortex_private [2022-11-23 13:54:06,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_window_lock_of_vortex_private [2022-11-23 13:54:06,151 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_check_media [2022-11-23 13:54:06,151 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_check_media [2022-11-23 13:54:06,151 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-11-23 13:54:06,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-11-23 13:54:06,151 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-23 13:54:06,152 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-23 13:54:06,152 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_rx [2022-11-23 13:54:06,152 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_rx [2022-11-23 13:54:06,152 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-11-23 13:54:06,152 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-11-23 13:54:06,152 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_open [2022-11-23 13:54:06,153 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_open [2022-11-23 13:54:06,153 INFO L130 BoogieDeclarations]: Found specification of procedure dump_tx_ring [2022-11-23 13:54:06,153 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_tx_ring [2022-11-23 13:54:06,153 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-23 13:54:06,153 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-23 13:54:06,153 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 13:54:06,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 13:54:06,154 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_probe1 [2022-11-23 13:54:06,154 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_probe1 [2022-11-23 13:54:06,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 13:54:06,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 13:54:06,154 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 13:54:06,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 13:54:06,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-23 13:54:06,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-23 13:54:06,155 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2022-11-23 13:54:06,155 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2022-11-23 13:54:06,155 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-23 13:54:06,156 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-23 13:54:06,156 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-23 13:54:06,156 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-23 13:54:06,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-23 13:54:06,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-23 13:54:06,156 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-23 13:54:06,157 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-23 13:54:06,157 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-23 13:54:06,157 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-23 13:54:06,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 13:54:06,157 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_111 [2022-11-23 13:54:06,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_111 [2022-11-23 13:54:06,158 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-23 13:54:06,158 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-23 13:54:06,158 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-23 13:54:06,158 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-23 13:54:06,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 13:54:06,158 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_suspend [2022-11-23 13:54:06,159 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_suspend [2022-11-23 13:54:06,160 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_interrupt [2022-11-23 13:54:06,164 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_interrupt [2022-11-23 13:54:06,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 13:54:06,165 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-23 13:54:06,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-23 13:54:06,165 INFO L130 BoogieDeclarations]: Found specification of procedure rx_oom_timer [2022-11-23 13:54:06,165 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_oom_timer [2022-11-23 13:54:06,165 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-23 13:54:06,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-23 13:54:06,166 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-23 13:54:06,166 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-23 13:54:06,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-23 13:54:06,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-23 13:54:06,167 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-23 13:54:06,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-23 13:54:06,167 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-23 13:54:06,167 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-23 13:54:06,168 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2022-11-23 13:54:06,168 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2022-11-23 13:54:06,168 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_resume [2022-11-23 13:54:06,168 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_resume [2022-11-23 13:54:06,168 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2022-11-23 13:54:06,168 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2022-11-23 13:54:06,169 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-23 13:54:06,169 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-23 13:54:06,169 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_rx [2022-11-23 13:54:06,169 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_rx [2022-11-23 13:54:06,169 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_105 [2022-11-23 13:54:06,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_105 [2022-11-23 13:54:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-23 13:54:06,170 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-23 13:54:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-23 13:54:06,170 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-23 13:54:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-23 13:54:06,170 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-23 13:54:06,170 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_133 [2022-11-23 13:54:06,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_133 [2022-11-23 13:54:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-23 13:54:06,171 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-23 13:54:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_delay [2022-11-23 13:54:06,171 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_delay [2022-11-23 13:54:06,171 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_timer [2022-11-23 13:54:06,172 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_timer [2022-11-23 13:54:06,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 13:54:06,172 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_down [2022-11-23 13:54:06,172 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_down [2022-11-23 13:54:06,172 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-23 13:54:06,172 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-23 13:54:06,172 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-23 13:54:06,173 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-23 13:54:06,173 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 13:54:06,173 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 13:54:06,173 INFO L130 BoogieDeclarations]: Found specification of procedure window_write8 [2022-11-23 13:54:06,173 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write8 [2022-11-23 13:54:06,173 INFO L130 BoogieDeclarations]: Found specification of procedure window_read32 [2022-11-23 13:54:06,174 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read32 [2022-11-23 13:54:06,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_10_2 [2022-11-23 13:54:06,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_10_2 [2022-11-23 13:54:06,174 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-23 13:54:06,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-23 13:54:06,174 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32_rep [2022-11-23 13:54:06,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32_rep [2022-11-23 13:54:06,175 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-23 13:54:06,175 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-23 13:54:06,175 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_up [2022-11-23 13:54:06,175 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_up [2022-11-23 13:54:06,175 INFO L130 BoogieDeclarations]: Found specification of procedure window_read16 [2022-11-23 13:54:06,175 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read16 [2022-11-23 13:54:06,176 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-23 13:54:06,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-23 13:54:06,176 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-23 13:54:06,176 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-23 13:54:06,176 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-23 13:54:06,176 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-23 13:54:06,177 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-23 13:54:06,177 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-23 13:54:06,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_vortex_private [2022-11-23 13:54:06,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_vortex_private [2022-11-23 13:54:06,177 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-23 13:54:06,177 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-23 13:54:06,177 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_112 [2022-11-23 13:54:06,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_112 [2022-11-23 13:54:06,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_113 [2022-11-23 13:54:06,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_113 [2022-11-23 13:54:06,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 13:54:06,178 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-23 13:54:06,178 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-23 13:54:06,179 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-23 13:54:06,179 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-23 13:54:07,333 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 13:54:07,342 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 13:54:09,548 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 13:54:16,503 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 13:54:20,033 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 13:54:20,033 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-23 13:54:20,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:54:20 BoogieIcfgContainer [2022-11-23 13:54:20,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 13:54:20,045 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 13:54:20,045 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 13:54:20,048 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 13:54:20,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:53:59" (1/3) ... [2022-11-23 13:54:20,049 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c0b6a1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:54:20, skipping insertion in model container [2022-11-23 13:54:20,049 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:54:05" (2/3) ... [2022-11-23 13:54:20,050 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c0b6a1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:54:20, skipping insertion in model container [2022-11-23 13:54:20,050 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:54:20" (3/3) ... [2022-11-23 13:54:20,052 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2022-11-23 13:54:20,072 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 13:54:20,073 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 13:54:20,173 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 13:54:20,183 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;@7cbc3e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 13:54:20,184 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 13:54:20,193 INFO L276 IsEmpty]: Start isEmpty. Operand has 2091 states, 1176 states have (on average 1.3027210884353742) internal successors, (1532), 1262 states have internal predecessors, (1532), 760 states have call successors, (760), 154 states have call predecessors, (760), 153 states have return successors, (753), 735 states have call predecessors, (753), 753 states have call successors, (753) [2022-11-23 13:54:20,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-23 13:54:20,222 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:54:20,223 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 5, 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] [2022-11-23 13:54:20,224 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:54:20,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:54:20,228 INFO L85 PathProgramCache]: Analyzing trace with hash -1429443595, now seen corresponding path program 1 times [2022-11-23 13:54:20,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:54:20,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868363932] [2022-11-23 13:54:20,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:54:20,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:54:20,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:54:28,965 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-23 13:54:28,965 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:54:28,966 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868363932] [2022-11-23 13:54:28,966 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868363932] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:54:28,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:54:28,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 13:54:28,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366519436] [2022-11-23 13:54:28,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:54:28,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 13:54:28,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:54:29,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 13:54:29,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 13:54:29,008 INFO L87 Difference]: Start difference. First operand has 2091 states, 1176 states have (on average 1.3027210884353742) internal successors, (1532), 1262 states have internal predecessors, (1532), 760 states have call successors, (760), 154 states have call predecessors, (760), 153 states have return successors, (753), 735 states have call predecessors, (753), 753 states have call successors, (753) Second operand has 6 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 13:54:31,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:54:33,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:54:35,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:54:37,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:54:40,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:54:42,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:54:52,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:54:54,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:54:56,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:54:58,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:55:00,074 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:55:02,654 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 [] [2022-11-23 13:55:03,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:55:03,084 INFO L93 Difference]: Finished difference Result 4976 states and 7319 transitions. [2022-11-23 13:55:03,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 13:55:03,087 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 118 [2022-11-23 13:55:03,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:55:03,132 INFO L225 Difference]: With dead ends: 4976 [2022-11-23 13:55:03,132 INFO L226 Difference]: Without dead ends: 2817 [2022-11-23 13:55:03,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-23 13:55:03,158 INFO L413 NwaCegarLoop]: 2940 mSDtfsCounter, 1078 mSDsluCounter, 10875 mSDsCounter, 0 mSdLazyCounter, 2548 mSolverCounterSat, 6 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 32.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1079 SdHoareTripleChecker+Valid, 13815 SdHoareTripleChecker+Invalid, 2564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2548 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 33.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:55:03,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1079 Valid, 13815 Invalid, 2564 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 2548 Invalid, 10 Unknown, 0 Unchecked, 33.1s Time] [2022-11-23 13:55:03,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2817 states. [2022-11-23 13:55:03,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2817 to 2811. [2022-11-23 13:55:03,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2811 states, 1604 states have (on average 1.282418952618454) internal successors, (2057), 1708 states have internal predecessors, (2057), 978 states have call successors, (978), 242 states have call predecessors, (978), 228 states have return successors, (1018), 935 states have call predecessors, (1018), 978 states have call successors, (1018) [2022-11-23 13:55:03,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2811 states to 2811 states and 4053 transitions. [2022-11-23 13:55:03,646 INFO L78 Accepts]: Start accepts. Automaton has 2811 states and 4053 transitions. Word has length 118 [2022-11-23 13:55:03,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:55:03,650 INFO L495 AbstractCegarLoop]: Abstraction has 2811 states and 4053 transitions. [2022-11-23 13:55:03,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2022-11-23 13:55:03,651 INFO L276 IsEmpty]: Start isEmpty. Operand 2811 states and 4053 transitions. [2022-11-23 13:55:03,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-11-23 13:55:03,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:55:03,679 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-23 13:55:03,680 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 13:55:03,680 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:55:03,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:55:03,681 INFO L85 PathProgramCache]: Analyzing trace with hash 2006910050, now seen corresponding path program 1 times [2022-11-23 13:55:03,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:55:03,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844854737] [2022-11-23 13:55:03,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:55:03,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:55:06,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:55:07,427 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-11-23 13:55:07,427 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:55:07,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844854737] [2022-11-23 13:55:07,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844854737] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:55:07,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:55:07,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 13:55:07,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41310502] [2022-11-23 13:55:07,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:55:07,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 13:55:07,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:55:07,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 13:55:07,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 13:55:07,432 INFO L87 Difference]: Start difference. First operand 2811 states and 4053 transitions. Second operand has 5 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-23 13:55:09,646 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 [] [2022-11-23 13:55:11,708 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 [] [2022-11-23 13:55:17,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:55:17,275 INFO L93 Difference]: Finished difference Result 4851 states and 7044 transitions. [2022-11-23 13:55:17,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 13:55:17,277 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 198 [2022-11-23 13:55:17,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:55:17,298 INFO L225 Difference]: With dead ends: 4851 [2022-11-23 13:55:17,298 INFO L226 Difference]: Without dead ends: 2823 [2022-11-23 13:55:17,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 13:55:17,313 INFO L413 NwaCegarLoop]: 2605 mSDtfsCounter, 19 mSDsluCounter, 7789 mSDsCounter, 0 mSdLazyCounter, 1490 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 10394 SdHoareTripleChecker+Invalid, 1492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1490 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-11-23 13:55:17,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 10394 Invalid, 1492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1490 Invalid, 2 Unknown, 0 Unchecked, 9.4s Time] [2022-11-23 13:55:17,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2823 states. [2022-11-23 13:55:17,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2823 to 2815. [2022-11-23 13:55:17,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2815 states, 1607 states have (on average 1.2818917237087741) internal successors, (2060), 1711 states have internal predecessors, (2060), 978 states have call successors, (978), 243 states have call predecessors, (978), 229 states have return successors, (1018), 935 states have call predecessors, (1018), 978 states have call successors, (1018) [2022-11-23 13:55:17,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2815 states to 2815 states and 4056 transitions. [2022-11-23 13:55:17,533 INFO L78 Accepts]: Start accepts. Automaton has 2815 states and 4056 transitions. Word has length 198 [2022-11-23 13:55:17,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:55:17,534 INFO L495 AbstractCegarLoop]: Abstraction has 2815 states and 4056 transitions. [2022-11-23 13:55:17,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 20.75) internal successors, (83), 4 states have internal predecessors, (83), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-23 13:55:17,535 INFO L276 IsEmpty]: Start isEmpty. Operand 2815 states and 4056 transitions. [2022-11-23 13:55:17,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-11-23 13:55:17,545 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:55:17,546 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-11-23 13:55:17,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 13:55:17,546 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:55:17,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:55:17,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1915305544, now seen corresponding path program 1 times [2022-11-23 13:55:17,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:55:17,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902482662] [2022-11-23 13:55:17,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:55:17,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:55:19,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:55:20,676 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-11-23 13:55:20,676 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:55:20,676 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902482662] [2022-11-23 13:55:20,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902482662] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:55:20,677 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:55:20,677 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 13:55:20,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385281204] [2022-11-23 13:55:20,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:55:20,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-23 13:55:20,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:55:20,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 13:55:20,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 13:55:20,679 INFO L87 Difference]: Start difference. First operand 2815 states and 4056 transitions. Second operand has 5 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-23 13:55:22,897 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 [] [2022-11-23 13:55:25,001 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:55:31,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:55:31,273 INFO L93 Difference]: Finished difference Result 4851 states and 7042 transitions. [2022-11-23 13:55:31,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 13:55:31,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 201 [2022-11-23 13:55:31,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:55:31,298 INFO L225 Difference]: With dead ends: 4851 [2022-11-23 13:55:31,298 INFO L226 Difference]: Without dead ends: 2819 [2022-11-23 13:55:31,310 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 13:55:31,311 INFO L413 NwaCegarLoop]: 2595 mSDtfsCounter, 6 mSDsluCounter, 7772 mSDsCounter, 0 mSdLazyCounter, 1490 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 10367 SdHoareTripleChecker+Invalid, 1491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1490 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.3s IncrementalHoareTripleChecker+Time [2022-11-23 13:55:31,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 10367 Invalid, 1491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1490 Invalid, 1 Unknown, 0 Unchecked, 10.3s Time] [2022-11-23 13:55:31,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2819 states. [2022-11-23 13:55:31,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2819 to 2819. [2022-11-23 13:55:31,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2819 states, 1610 states have (on average 1.281366459627329) internal successors, (2063), 1714 states have internal predecessors, (2063), 978 states have call successors, (978), 244 states have call predecessors, (978), 230 states have return successors, (1018), 935 states have call predecessors, (1018), 978 states have call successors, (1018) [2022-11-23 13:55:31,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2819 states to 2819 states and 4059 transitions. [2022-11-23 13:55:31,520 INFO L78 Accepts]: Start accepts. Automaton has 2819 states and 4059 transitions. Word has length 201 [2022-11-23 13:55:31,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:55:31,521 INFO L495 AbstractCegarLoop]: Abstraction has 2819 states and 4059 transitions. [2022-11-23 13:55:31,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2022-11-23 13:55:31,522 INFO L276 IsEmpty]: Start isEmpty. Operand 2819 states and 4059 transitions. [2022-11-23 13:55:31,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2022-11-23 13:55:31,537 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:55:31,537 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:55:31,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 13:55:31,538 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:55:31,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:55:31,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1047705250, now seen corresponding path program 1 times [2022-11-23 13:55:31,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:55:31,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262425798] [2022-11-23 13:55:31,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:55:31,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:55:31,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:55:32,168 INFO L134 CoverageAnalysis]: Checked inductivity of 251 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2022-11-23 13:55:32,169 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:55:32,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262425798] [2022-11-23 13:55:32,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262425798] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:55:32,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:55:32,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:55:32,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695948579] [2022-11-23 13:55:32,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:55:32,171 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:55:32,172 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:55:32,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:55:32,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:55:32,173 INFO L87 Difference]: Start difference. First operand 2819 states and 4059 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-23 13:55:34,631 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 [] [2022-11-23 13:55:36,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:55:39,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:55:39,496 INFO L93 Difference]: Finished difference Result 6843 states and 9768 transitions. [2022-11-23 13:55:39,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:55:39,499 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 280 [2022-11-23 13:55:39,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:55:39,529 INFO L225 Difference]: With dead ends: 6843 [2022-11-23 13:55:39,530 INFO L226 Difference]: Without dead ends: 4182 [2022-11-23 13:55:39,544 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 [2022-11-23 13:55:39,545 INFO L413 NwaCegarLoop]: 3120 mSDtfsCounter, 2442 mSDsluCounter, 2072 mSDsCounter, 0 mSdLazyCounter, 674 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2443 SdHoareTripleChecker+Valid, 5192 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 674 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2022-11-23 13:55:39,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2443 Valid, 5192 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 674 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2022-11-23 13:55:39,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4182 states. [2022-11-23 13:55:39,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4182 to 4177. [2022-11-23 13:55:39,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4177 states, 2351 states have (on average 1.2747766907698852) internal successors, (2997), 2509 states have internal predecessors, (2997), 1457 states have call successors, (1457), 383 states have call predecessors, (1457), 368 states have return successors, (1497), 1402 states have call predecessors, (1497), 1457 states have call successors, (1497) [2022-11-23 13:55:39,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4177 states to 4177 states and 5951 transitions. [2022-11-23 13:55:39,835 INFO L78 Accepts]: Start accepts. Automaton has 4177 states and 5951 transitions. Word has length 280 [2022-11-23 13:55:39,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:55:39,836 INFO L495 AbstractCegarLoop]: Abstraction has 4177 states and 5951 transitions. [2022-11-23 13:55:39,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (49), 2 states have call predecessors, (49), 1 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2022-11-23 13:55:39,836 INFO L276 IsEmpty]: Start isEmpty. Operand 4177 states and 5951 transitions. [2022-11-23 13:55:39,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-11-23 13:55:39,852 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:55:39,853 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:55:39,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 13:55:39,853 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:55:39,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:55:39,854 INFO L85 PathProgramCache]: Analyzing trace with hash -2076779163, now seen corresponding path program 1 times [2022-11-23 13:55:39,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:55:39,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632803019] [2022-11-23 13:55:39,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:55:39,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:55:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:55:50,033 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 430 trivial. 0 not checked. [2022-11-23 13:55:50,033 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:55:50,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632803019] [2022-11-23 13:55:50,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632803019] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:55:50,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:55:50,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-23 13:55:50,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796084979] [2022-11-23 13:55:50,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:55:50,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-23 13:55:50,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:55:50,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-23 13:55:50,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-23 13:55:50,036 INFO L87 Difference]: Start difference. First operand 4177 states and 5951 transitions. Second operand has 11 states, 10 states have (on average 13.5) internal successors, (135), 10 states have internal predecessors, (135), 7 states have call successors, (61), 4 states have call predecessors, (61), 6 states have return successors, (58), 8 states have call predecessors, (58), 7 states have call successors, (58) [2022-11-23 13:55:54,656 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 [] [2022-11-23 13:55:58,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:56:00,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:56:02,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.40s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:56:06,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:56:43,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:56:43,700 INFO L93 Difference]: Finished difference Result 9770 states and 14092 transitions. [2022-11-23 13:56:43,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-23 13:56:43,702 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 13.5) internal successors, (135), 10 states have internal predecessors, (135), 7 states have call successors, (61), 4 states have call predecessors, (61), 6 states have return successors, (58), 8 states have call predecessors, (58), 7 states have call successors, (58) Word has length 320 [2022-11-23 13:56:43,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:56:43,760 INFO L225 Difference]: With dead ends: 9770 [2022-11-23 13:56:43,760 INFO L226 Difference]: Without dead ends: 9768 [2022-11-23 13:56:43,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2022-11-23 13:56:43,766 INFO L413 NwaCegarLoop]: 2529 mSDtfsCounter, 7187 mSDsluCounter, 10679 mSDsCounter, 0 mSdLazyCounter, 19783 mSolverCounterSat, 5706 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8015 SdHoareTripleChecker+Valid, 13208 SdHoareTripleChecker+Invalid, 25493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 5706 IncrementalHoareTripleChecker+Valid, 19783 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 51.3s IncrementalHoareTripleChecker+Time [2022-11-23 13:56:43,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8015 Valid, 13208 Invalid, 25493 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [5706 Valid, 19783 Invalid, 4 Unknown, 0 Unchecked, 51.3s Time] [2022-11-23 13:56:43,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9768 states. [2022-11-23 13:56:44,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9768 to 9440. [2022-11-23 13:56:44,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9440 states, 5362 states have (on average 1.268929503916449) internal successors, (6804), 5714 states have internal predecessors, (6804), 3207 states have call successors, (3207), 903 states have call predecessors, (3207), 870 states have return successors, (3551), 3070 states have call predecessors, (3551), 3207 states have call successors, (3551) [2022-11-23 13:56:44,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9440 states to 9440 states and 13562 transitions. [2022-11-23 13:56:44,713 INFO L78 Accepts]: Start accepts. Automaton has 9440 states and 13562 transitions. Word has length 320 [2022-11-23 13:56:44,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:56:44,716 INFO L495 AbstractCegarLoop]: Abstraction has 9440 states and 13562 transitions. [2022-11-23 13:56:44,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 13.5) internal successors, (135), 10 states have internal predecessors, (135), 7 states have call successors, (61), 4 states have call predecessors, (61), 6 states have return successors, (58), 8 states have call predecessors, (58), 7 states have call successors, (58) [2022-11-23 13:56:44,716 INFO L276 IsEmpty]: Start isEmpty. Operand 9440 states and 13562 transitions. [2022-11-23 13:56:44,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2022-11-23 13:56:44,749 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:56:44,749 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 11, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:56:44,749 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 13:56:44,750 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:56:44,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:56:44,750 INFO L85 PathProgramCache]: Analyzing trace with hash -644193909, now seen corresponding path program 1 times [2022-11-23 13:56:44,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:56:44,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604089644] [2022-11-23 13:56:44,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:56:44,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:56:44,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:56:45,531 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2022-11-23 13:56:45,531 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:56:45,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604089644] [2022-11-23 13:56:45,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604089644] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:56:45,532 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:56:45,532 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 13:56:45,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756026728] [2022-11-23 13:56:45,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:56:45,534 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 13:56:45,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:56:45,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 13:56:45,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 13:56:45,535 INFO L87 Difference]: Start difference. First operand 9440 states and 13562 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 4 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62) [2022-11-23 13:56:48,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:56:50,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:57:01,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:57:01,648 INFO L93 Difference]: Finished difference Result 28100 states and 41138 transitions. [2022-11-23 13:57:01,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 13:57:01,649 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 4 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62) Word has length 425 [2022-11-23 13:57:01,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:57:01,793 INFO L225 Difference]: With dead ends: 28100 [2022-11-23 13:57:01,794 INFO L226 Difference]: Without dead ends: 18676 [2022-11-23 13:57:01,855 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 13:57:01,856 INFO L413 NwaCegarLoop]: 5408 mSDtfsCounter, 4981 mSDsluCounter, 4728 mSDsCounter, 0 mSdLazyCounter, 4415 mSolverCounterSat, 70 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4981 SdHoareTripleChecker+Valid, 10136 SdHoareTripleChecker+Invalid, 4487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 4415 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2022-11-23 13:57:01,856 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4981 Valid, 10136 Invalid, 4487 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [70 Valid, 4415 Invalid, 2 Unknown, 0 Unchecked, 14.5s Time] [2022-11-23 13:57:01,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18676 states. [2022-11-23 13:57:03,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18676 to 18119. [2022-11-23 13:57:03,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18119 states, 10249 states have (on average 1.2650990340521027) internal successors, (12966), 10951 states have internal predecessors, (12966), 6167 states have call successors, (6167), 1755 states have call predecessors, (6167), 1702 states have return successors, (6958), 5920 states have call predecessors, (6958), 6167 states have call successors, (6958) [2022-11-23 13:57:03,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18119 states to 18119 states and 26091 transitions. [2022-11-23 13:57:03,471 INFO L78 Accepts]: Start accepts. Automaton has 18119 states and 26091 transitions. Word has length 425 [2022-11-23 13:57:03,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:57:03,473 INFO L495 AbstractCegarLoop]: Abstraction has 18119 states and 26091 transitions. [2022-11-23 13:57:03,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 4 states have call successors, (65), 2 states have call predecessors, (65), 2 states have return successors, (62), 4 states have call predecessors, (62), 4 states have call successors, (62) [2022-11-23 13:57:03,474 INFO L276 IsEmpty]: Start isEmpty. Operand 18119 states and 26091 transitions. [2022-11-23 13:57:03,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2022-11-23 13:57:03,511 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:57:03,511 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 11, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:57:03,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 13:57:03,511 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:57:03,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:57:03,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1225883762, now seen corresponding path program 1 times [2022-11-23 13:57:03,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:57:03,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363119602] [2022-11-23 13:57:03,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:57:03,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:57:03,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:57:04,152 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 531 trivial. 0 not checked. [2022-11-23 13:57:04,153 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:57:04,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363119602] [2022-11-23 13:57:04,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363119602] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:57:04,153 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:57:04,153 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:57:04,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455343414] [2022-11-23 13:57:04,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:57:04,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:57:04,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:57:04,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:57:04,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:57:04,156 INFO L87 Difference]: Start difference. First operand 18119 states and 26091 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 3 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (69), 3 states have call predecessors, (69), 3 states have call successors, (69) [2022-11-23 13:57:06,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:57:08,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:57:11,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:57:11,669 INFO L93 Difference]: Finished difference Result 32781 states and 47414 transitions. [2022-11-23 13:57:11,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:57:11,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 3 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (69), 3 states have call predecessors, (69), 3 states have call successors, (69) Word has length 366 [2022-11-23 13:57:11,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:57:11,801 INFO L225 Difference]: With dead ends: 32781 [2022-11-23 13:57:11,801 INFO L226 Difference]: Without dead ends: 18317 [2022-11-23 13:57:11,895 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 [2022-11-23 13:57:11,896 INFO L413 NwaCegarLoop]: 2591 mSDtfsCounter, 34 mSDsluCounter, 2544 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 5135 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-11-23 13:57:11,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 5135 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 769 Invalid, 1 Unknown, 0 Unchecked, 6.4s Time] [2022-11-23 13:57:11,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18317 states. [2022-11-23 13:57:13,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18317 to 18257. [2022-11-23 13:57:13,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18257 states, 10328 states have (on average 1.266750580945004) internal successors, (13083), 11040 states have internal predecessors, (13083), 6226 states have call successors, (6226), 1755 states have call predecessors, (6226), 1702 states have return successors, (7019), 5974 states have call predecessors, (7019), 6226 states have call successors, (7019) [2022-11-23 13:57:13,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18257 states to 18257 states and 26328 transitions. [2022-11-23 13:57:13,464 INFO L78 Accepts]: Start accepts. Automaton has 18257 states and 26328 transitions. Word has length 366 [2022-11-23 13:57:13,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:57:13,465 INFO L495 AbstractCegarLoop]: Abstraction has 18257 states and 26328 transitions. [2022-11-23 13:57:13,465 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 3 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (69), 3 states have call predecessors, (69), 3 states have call successors, (69) [2022-11-23 13:57:13,466 INFO L276 IsEmpty]: Start isEmpty. Operand 18257 states and 26328 transitions. [2022-11-23 13:57:13,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2022-11-23 13:57:13,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:57:13,500 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 11, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:57:13,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 13:57:13,501 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:57:13,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:57:13,501 INFO L85 PathProgramCache]: Analyzing trace with hash -315141616, now seen corresponding path program 1 times [2022-11-23 13:57:13,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:57:13,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990721268] [2022-11-23 13:57:13,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:57:13,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:57:13,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:57:20,828 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 533 trivial. 0 not checked. [2022-11-23 13:57:20,829 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:57:20,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990721268] [2022-11-23 13:57:20,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990721268] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:57:20,829 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:57:20,829 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-23 13:57:20,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919504242] [2022-11-23 13:57:20,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:57:20,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 13:57:20,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:57:20,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 13:57:20,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-23 13:57:20,832 INFO L87 Difference]: Start difference. First operand 18257 states and 26328 transitions. Second operand has 12 states, 11 states have (on average 14.090909090909092) internal successors, (155), 11 states have internal predecessors, (155), 8 states have call successors, (74), 3 states have call predecessors, (74), 6 states have return successors, (71), 9 states have call predecessors, (71), 8 states have call successors, (71) [2022-11-23 13:57:26,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:57:29,000 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:57:32,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:57:51,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:57:53,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:57:55,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:57:57,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:57:59,278 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:58:12,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:58:14,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:58:16,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:58:18,047 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:58:20,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:58:32,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:58:34,468 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:58:36,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:58:38,060 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:58:51,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:58:53,533 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 [] [2022-11-23 13:59:10,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:59:10,103 INFO L93 Difference]: Finished difference Result 42569 states and 62722 transitions. [2022-11-23 13:59:10,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-23 13:59:10,103 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 14.090909090909092) internal successors, (155), 11 states have internal predecessors, (155), 8 states have call successors, (74), 3 states have call predecessors, (74), 6 states have return successors, (71), 9 states have call predecessors, (71), 8 states have call successors, (71) Word has length 375 [2022-11-23 13:59:10,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:59:10,438 INFO L225 Difference]: With dead ends: 42569 [2022-11-23 13:59:10,438 INFO L226 Difference]: Without dead ends: 42567 [2022-11-23 13:59:10,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=242, Invalid=880, Unknown=0, NotChecked=0, Total=1122 [2022-11-23 13:59:10,461 INFO L413 NwaCegarLoop]: 2189 mSDtfsCounter, 12700 mSDsluCounter, 10806 mSDsCounter, 0 mSdLazyCounter, 35865 mSolverCounterSat, 13341 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 97.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14016 SdHoareTripleChecker+Valid, 12995 SdHoareTripleChecker+Invalid, 49222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 13341 IncrementalHoareTripleChecker+Valid, 35865 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 103.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:59:10,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14016 Valid, 12995 Invalid, 49222 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [13341 Valid, 35865 Invalid, 16 Unknown, 0 Unchecked, 103.1s Time] [2022-11-23 13:59:10,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42567 states. [2022-11-23 13:59:14,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42567 to 41302. [2022-11-23 13:59:14,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41302 states, 23370 states have (on average 1.257252888318357) internal successors, (29382), 24886 states have internal predecessors, (29382), 13846 states have call successors, (13846), 4233 states have call predecessors, (13846), 4085 states have return successors, (17231), 13269 states have call predecessors, (17231), 13846 states have call successors, (17231) [2022-11-23 13:59:14,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41302 states to 41302 states and 60459 transitions. [2022-11-23 13:59:14,603 INFO L78 Accepts]: Start accepts. Automaton has 41302 states and 60459 transitions. Word has length 375 [2022-11-23 13:59:14,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:59:14,603 INFO L495 AbstractCegarLoop]: Abstraction has 41302 states and 60459 transitions. [2022-11-23 13:59:14,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 14.090909090909092) internal successors, (155), 11 states have internal predecessors, (155), 8 states have call successors, (74), 3 states have call predecessors, (74), 6 states have return successors, (71), 9 states have call predecessors, (71), 8 states have call successors, (71) [2022-11-23 13:59:14,604 INFO L276 IsEmpty]: Start isEmpty. Operand 41302 states and 60459 transitions. [2022-11-23 13:59:14,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2022-11-23 13:59:14,809 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:59:14,809 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 7, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:59:14,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 13:59:14,810 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:59:14,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:59:14,810 INFO L85 PathProgramCache]: Analyzing trace with hash -496287738, now seen corresponding path program 1 times [2022-11-23 13:59:14,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:59:14,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44472539] [2022-11-23 13:59:14,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:59:14,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:59:15,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:59:15,715 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2022-11-23 13:59:15,715 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:59:15,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44472539] [2022-11-23 13:59:15,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44472539] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:59:15,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:59:15,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:59:15,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309284019] [2022-11-23 13:59:15,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:59:15,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:59:15,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:59:15,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:59:15,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:59:15,719 INFO L87 Difference]: Start difference. First operand 41302 states and 60459 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-23 13:59:18,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:59:20,891 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.95s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:59:25,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:59:25,047 INFO L93 Difference]: Finished difference Result 58163 states and 85111 transitions. [2022-11-23 13:59:25,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:59:25,054 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) Word has length 347 [2022-11-23 13:59:25,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:59:25,263 INFO L225 Difference]: With dead ends: 58163 [2022-11-23 13:59:25,263 INFO L226 Difference]: Without dead ends: 34837 [2022-11-23 13:59:25,394 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 [2022-11-23 13:59:25,396 INFO L413 NwaCegarLoop]: 2587 mSDtfsCounter, 8 mSDsluCounter, 2578 mSDsCounter, 0 mSdLazyCounter, 743 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 5165 SdHoareTripleChecker+Invalid, 750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 743 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2022-11-23 13:59:25,397 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 5165 Invalid, 750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 743 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2022-11-23 13:59:25,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34837 states. [2022-11-23 13:59:29,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34837 to 34529. [2022-11-23 13:59:29,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34529 states, 19404 states have (on average 1.2559266130694702) internal successors, (24370), 20690 states have internal predecessors, (24370), 11657 states have call successors, (11657), 3534 states have call predecessors, (11657), 3467 states have return successors, (13814), 11253 states have call predecessors, (13814), 11657 states have call successors, (13814) [2022-11-23 13:59:29,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34529 states to 34529 states and 49841 transitions. [2022-11-23 13:59:29,589 INFO L78 Accepts]: Start accepts. Automaton has 34529 states and 49841 transitions. Word has length 347 [2022-11-23 13:59:29,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:59:29,590 INFO L495 AbstractCegarLoop]: Abstraction has 34529 states and 49841 transitions. [2022-11-23 13:59:29,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 2 states have call successors, (58), 2 states have call predecessors, (58), 1 states have return successors, (55), 2 states have call predecessors, (55), 2 states have call successors, (55) [2022-11-23 13:59:29,590 INFO L276 IsEmpty]: Start isEmpty. Operand 34529 states and 49841 transitions. [2022-11-23 13:59:29,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2022-11-23 13:59:29,646 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:59:29,646 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 8, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:59:29,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 13:59:29,647 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:59:29,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:59:29,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1958590016, now seen corresponding path program 1 times [2022-11-23 13:59:29,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:59:29,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64286707] [2022-11-23 13:59:29,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:59:29,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:59:29,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:59:30,835 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2022-11-23 13:59:30,836 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:59:30,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64286707] [2022-11-23 13:59:30,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64286707] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:59:30,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:59:30,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:59:30,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109004209] [2022-11-23 13:59:30,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:59:30,838 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:59:30,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:59:30,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:59:30,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:59:30,839 INFO L87 Difference]: Start difference. First operand 34529 states and 49841 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 2 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2022-11-23 13:59:32,919 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:59:34,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:59:37,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:59:42,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:59:42,790 INFO L93 Difference]: Finished difference Result 51833 states and 75187 transitions. [2022-11-23 13:59:42,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:59:42,793 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 2 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) Word has length 401 [2022-11-23 13:59:42,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:59:42,935 INFO L225 Difference]: With dead ends: 51833 [2022-11-23 13:59:42,935 INFO L226 Difference]: Without dead ends: 35293 [2022-11-23 13:59:43,014 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 [2022-11-23 13:59:43,015 INFO L413 NwaCegarLoop]: 2840 mSDtfsCounter, 231 mSDsluCounter, 2637 mSDsCounter, 0 mSdLazyCounter, 773 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 335 SdHoareTripleChecker+Valid, 5477 SdHoareTripleChecker+Invalid, 775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 773 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:59:43,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [335 Valid, 5477 Invalid, 775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 773 Invalid, 2 Unknown, 0 Unchecked, 9.1s Time] [2022-11-23 13:59:43,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35293 states. [2022-11-23 13:59:46,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35293 to 34530. [2022-11-23 13:59:46,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34530 states, 19405 states have (on average 1.255913424375161) internal successors, (24371), 20691 states have internal predecessors, (24371), 11657 states have call successors, (11657), 3534 states have call predecessors, (11657), 3467 states have return successors, (13814), 11253 states have call predecessors, (13814), 11657 states have call successors, (13814) [2022-11-23 13:59:46,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34530 states to 34530 states and 49842 transitions. [2022-11-23 13:59:46,481 INFO L78 Accepts]: Start accepts. Automaton has 34530 states and 49842 transitions. Word has length 401 [2022-11-23 13:59:46,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:59:46,482 INFO L495 AbstractCegarLoop]: Abstraction has 34530 states and 49842 transitions. [2022-11-23 13:59:46,482 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 2 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2022-11-23 13:59:46,482 INFO L276 IsEmpty]: Start isEmpty. Operand 34530 states and 49842 transitions. [2022-11-23 13:59:46,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2022-11-23 13:59:46,563 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:59:46,563 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 8, 6, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:59:46,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-23 13:59:46,564 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:59:46,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:59:46,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1579260646, now seen corresponding path program 1 times [2022-11-23 13:59:46,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:59:46,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669378047] [2022-11-23 13:59:46,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:59:46,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:59:46,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:59:47,424 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 710 trivial. 0 not checked. [2022-11-23 13:59:47,425 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:59:47,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669378047] [2022-11-23 13:59:47,425 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669378047] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:59:47,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337774340] [2022-11-23 13:59:47,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:59:47,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:59:47,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aba47-be43-41c1-bb54-ad40e5fc1120/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:59:47,431 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aba47-be43-41c1-bb54-ad40e5fc1120/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:59:47,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bf2aba47-be43-41c1-bb54-ad40e5fc1120/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 13:59:50,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:59:50,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 8412 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-23 13:59:50,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:59:50,689 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 239 proven. 1 refuted. 0 times theorem prover too weak. 471 trivial. 0 not checked. [2022-11-23 13:59:50,689 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 13:59:51,529 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 710 trivial. 0 not checked. [2022-11-23 13:59:51,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337774340] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 13:59:51,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1077173325] [2022-11-23 13:59:51,575 INFO L159 IcfgInterpreter]: Started Sifa with 261 locations of interest [2022-11-23 13:59:51,576 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 13:59:51,582 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 13:59:51,590 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 13:59:51,591 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs