./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 5e519f3a 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_ca507f56-334b-4181-9373-5afa43cdc713/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca507f56-334b-4181-9373-5afa43cdc713/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca507f56-334b-4181-9373-5afa43cdc713/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca507f56-334b-4181-9373-5afa43cdc713/bin/utaipan-7li7fVZpFI/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_ca507f56-334b-4181-9373-5afa43cdc713/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca507f56-334b-4181-9373-5afa43cdc713/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 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-5e519f3 [2022-11-03 01:45:07,512 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:45:07,514 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:45:07,545 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:45:07,546 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:45:07,548 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:45:07,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:45:07,552 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:45:07,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:45:07,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:45:07,557 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:45:07,558 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:45:07,559 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:45:07,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:45:07,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:45:07,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:45:07,569 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:45:07,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:45:07,576 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:45:07,580 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:45:07,589 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:45:07,590 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:45:07,592 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:45:07,593 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:45:07,602 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:45:07,603 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:45:07,603 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:45:07,610 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:45:07,611 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:45:07,612 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:45:07,613 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:45:07,614 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:45:07,615 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:45:07,619 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:45:07,620 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:45:07,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:45:07,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:45:07,624 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:45:07,625 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:45:07,626 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:45:07,627 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:45:07,628 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca507f56-334b-4181-9373-5afa43cdc713/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 01:45:07,674 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:45:07,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:45:07,678 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:45:07,678 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:45:07,679 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:45:07,680 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:45:07,680 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:45:07,681 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:45:07,681 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:45:07,681 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:45:07,683 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:45:07,683 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:45:07,683 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:45:07,684 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:45:07,684 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:45:07,685 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:45:07,685 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:45:07,685 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:45:07,686 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:45:07,687 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:45:07,687 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:45:07,687 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:45:07,688 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:45:07,690 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:45:07,690 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:45:07,691 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:45:07,691 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:45:07,691 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:45:07,692 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:45:07,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:45:07,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:45:07,693 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:45:07,693 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:45:07,694 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:45:07,694 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:45:07,694 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:45:07,695 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:45:07,695 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:45:07,696 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_ca507f56-334b-4181-9373-5afa43cdc713/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca507f56-334b-4181-9373-5afa43cdc713/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 004fcd1800da3fcc8c5839d85d0662ed24df5100e10ec8a5024be56f561eab28 [2022-11-03 01:45:08,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:45:08,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:45:08,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:45:08,125 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:45:08,126 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:45:08,128 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca507f56-334b-4181-9373-5afa43cdc713/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2022-11-03 01:45:08,209 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca507f56-334b-4181-9373-5afa43cdc713/bin/utaipan-7li7fVZpFI/data/df53c3d0f/2e8a72dc26214183a4db297a2191f33c/FLAG5b87f7ea1 [2022-11-03 01:45:09,388 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:45:09,389 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca507f56-334b-4181-9373-5afa43cdc713/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2022-11-03 01:45:09,493 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca507f56-334b-4181-9373-5afa43cdc713/bin/utaipan-7li7fVZpFI/data/df53c3d0f/2e8a72dc26214183a4db297a2191f33c/FLAG5b87f7ea1 [2022-11-03 01:45:09,605 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca507f56-334b-4181-9373-5afa43cdc713/bin/utaipan-7li7fVZpFI/data/df53c3d0f/2e8a72dc26214183a4db297a2191f33c [2022-11-03 01:45:09,608 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:45:09,611 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:45:09,614 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:45:09,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:45:09,619 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:45:09,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:45:09" (1/1) ... [2022-11-03 01:45:09,622 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@747547c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:45:09, skipping insertion in model container [2022-11-03 01:45:09,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:45:09" (1/1) ... [2022-11-03 01:45:09,631 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:45:09,906 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:45:14,445 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca507f56-334b-4181-9373-5afa43cdc713/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[452511,452524] [2022-11-03 01:45:14,448 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca507f56-334b-4181-9373-5afa43cdc713/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[452656,452669] [2022-11-03 01:45:14,488 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:45:14,576 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:45:15,361 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca507f56-334b-4181-9373-5afa43cdc713/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[452511,452524] [2022-11-03 01:45:15,361 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca507f56-334b-4181-9373-5afa43cdc713/sv-benchmarks/c/ldv-challenges/linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i[452656,452669] [2022-11-03 01:45:15,372 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:45:15,732 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:45:15,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:45:15 WrapperNode [2022-11-03 01:45:15,733 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:45:15,734 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:45:15,734 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:45:15,735 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:45:15,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:45:15" (1/1) ... [2022-11-03 01:45:15,901 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:45:15" (1/1) ... [2022-11-03 01:45:16,317 INFO L138 Inliner]: procedures = 548, calls = 4413, calls flagged for inlining = 251, calls inlined = 230, statements flattened = 8724 [2022-11-03 01:45:16,318 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:45:16,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:45:16,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:45:16,321 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:45:16,334 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:45:15" (1/1) ... [2022-11-03 01:45:16,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:45:15" (1/1) ... [2022-11-03 01:45:16,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:45:15" (1/1) ... [2022-11-03 01:45:16,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:45:15" (1/1) ... [2022-11-03 01:45:16,617 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:45:15" (1/1) ... [2022-11-03 01:45:16,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:45:15" (1/1) ... [2022-11-03 01:45:16,812 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:45:15" (1/1) ... [2022-11-03 01:45:16,859 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:45:15" (1/1) ... [2022-11-03 01:45:16,932 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:45:16,934 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:45:16,934 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:45:16,934 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:45:16,935 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:45:15" (1/1) ... [2022-11-03 01:45:16,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:45:16,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca507f56-334b-4181-9373-5afa43cdc713/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:45:16,974 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca507f56-334b-4181-9373-5afa43cdc713/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:45:17,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca507f56-334b-4181-9373-5afa43cdc713/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:45:17,030 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_122 [2022-11-03 01:45:17,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_122 [2022-11-03 01:45:17,031 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-03 01:45:17,031 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-03 01:45:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-03 01:45:17,032 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-03 01:45:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-03 01:45:17,032 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-03 01:45:17,032 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2022-11-03 01:45:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2022-11-03 01:45:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_nway_reset [2022-11-03 01:45:17,033 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_nway_reset [2022-11-03 01:45:17,033 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-03 01:45:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-03 01:45:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_88 [2022-11-03 01:45:17,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_88 [2022-11-03 01:45:17,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer_107 [2022-11-03 01:45:17,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer_107 [2022-11-03 01:45:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 01:45:17,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 01:45:17,035 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-03 01:45:17,036 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-03 01:45:17,036 INFO L130 BoogieDeclarations]: Found specification of procedure set_8021q_mode [2022-11-03 01:45:17,036 INFO L138 BoogieDeclarations]: Found implementation of procedure set_8021q_mode [2022-11-03 01:45:17,036 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_remove_one [2022-11-03 01:45:17,037 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_remove_one [2022-11-03 01:45:17,037 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2022-11-03 01:45:17,037 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2022-11-03 01:45:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure issue_and_wait [2022-11-03 01:45:17,038 INFO L138 BoogieDeclarations]: Found implementation of procedure issue_and_wait [2022-11-03 01:45:17,038 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-03 01:45:17,039 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-03 01:45:17,039 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-11-03 01:45:17,039 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-11-03 01:45:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite8 [2022-11-03 01:45:17,040 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite8 [2022-11-03 01:45:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure window_write32 [2022-11-03 01:45:17,041 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write32 [2022-11-03 01:45:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-03 01:45:17,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-03 01:45:17,041 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-03 01:45:17,042 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-03 01:45:17,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_timer_instance_5 [2022-11-03 01:45:17,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_timer_instance_5 [2022-11-03 01:45:17,043 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 01:45:17,043 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 01:45:17,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_window_lock_of_vortex_private [2022-11-03 01:45:17,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_window_lock_of_vortex_private [2022-11-03 01:45:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_vortex_private [2022-11-03 01:45:17,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_vortex_private [2022-11-03 01:45:17,046 INFO L130 BoogieDeclarations]: Found specification of procedure window_set [2022-11-03 01:45:17,047 INFO L138 BoogieDeclarations]: Found implementation of procedure window_set [2022-11-03 01:45:17,047 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-03 01:45:17,047 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-03 01:45:17,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-03 01:45:17,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-03 01:45:17,049 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-03 01:45:17,050 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-03 01:45:17,050 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-03 01:45:17,050 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-03 01:45:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-11-03 01:45:17,051 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-11-03 01:45:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2022-11-03 01:45:17,051 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2022-11-03 01:45:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-03 01:45:17,052 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-03 01:45:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-03 01:45:17,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-03 01:45:17,052 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2022-11-03 01:45:17,054 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2022-11-03 01:45:17,054 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 01:45:17,054 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 01:45:17,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_instance_callback_5_2 [2022-11-03 01:45:17,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_instance_callback_5_2 [2022-11-03 01:45:17,055 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-03 01:45:17,055 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-03 01:45:17,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 01:45:17,056 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tx_timestamp [2022-11-03 01:45:17,056 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tx_timestamp [2022-11-03 01:45:17,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-03 01:45:17,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-03 01:45:17,058 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-03 01:45:17,058 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-03 01:45:17,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_118 [2022-11-03 01:45:17,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_118 [2022-11-03 01:45:17,059 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2022-11-03 01:45:17,060 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2022-11-03 01:45:17,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_114 [2022-11-03 01:45:17,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_114 [2022-11-03 01:45:17,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 01:45:17,062 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_tx_timeout [2022-11-03 01:45:17,062 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_tx_timeout [2022-11-03 01:45:17,063 INFO L130 BoogieDeclarations]: Found specification of procedure pci_save_state [2022-11-03 01:45:17,063 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_save_state [2022-11-03 01:45:17,063 INFO L130 BoogieDeclarations]: Found specification of procedure ioport_map [2022-11-03 01:45:17,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ioport_map [2022-11-03 01:45:17,064 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 01:45:17,064 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 01:45:17,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2022-11-03 01:45:17,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2022-11-03 01:45:17,064 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 01:45:17,065 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 01:45:17,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 01:45:17,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_106 [2022-11-03 01:45:17,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_106 [2022-11-03 01:45:17,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-03 01:45:17,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-03 01:45:17,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 01:45:17,069 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_interrupt [2022-11-03 01:45:17,072 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_interrupt [2022-11-03 01:45:17,073 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-11-03 01:45:17,073 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-11-03 01:45:17,075 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-03 01:45:17,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-03 01:45:17,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 01:45:17,078 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 01:45:17,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-03 01:45:17,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-03 01:45:17,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-03 01:45:17,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-03 01:45:17,084 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-03 01:45:17,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-03 01:45:17,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-03 01:45:17,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-03 01:45:17,085 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_set_duplex [2022-11-03 01:45:17,085 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_set_duplex [2022-11-03 01:45:17,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_132 [2022-11-03 01:45:17,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_132 [2022-11-03 01:45:17,086 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2022-11-03 01:45:17,086 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2022-11-03 01:45:17,086 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-03 01:45:17,087 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-03 01:45:17,087 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_error [2022-11-03 01:45:17,087 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_error [2022-11-03 01:45:17,087 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-03 01:45:17,087 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-03 01:45:17,088 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_close [2022-11-03 01:45:17,088 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_close [2022-11-03 01:45:17,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 01:45:17,088 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_save [2022-11-03 01:45:17,088 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_save [2022-11-03 01:45:17,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-03 01:45:17,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-03 01:45:17,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:45:17,089 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-03 01:45:17,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-03 01:45:17,090 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-03 01:45:17,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-03 01:45:17,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 01:45:17,090 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-11-03 01:45:17,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-11-03 01:45:17,091 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 01:45:17,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 01:45:17,091 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2022-11-03 01:45:17,091 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2022-11-03 01:45:17,092 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2022-11-03 01:45:17,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2022-11-03 01:45:17,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-03 01:45:17,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-03 01:45:17,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-03 01:45:17,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-03 01:45:17,093 INFO L130 BoogieDeclarations]: Found specification of procedure acpi_set_WOL [2022-11-03 01:45:17,093 INFO L138 BoogieDeclarations]: Found implementation of procedure acpi_set_WOL [2022-11-03 01:45:17,093 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-03 01:45:17,094 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-03 01:45:17,094 INFO L130 BoogieDeclarations]: Found specification of procedure window_write16 [2022-11-03 01:45:17,094 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write16 [2022-11-03 01:45:17,094 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2022-11-03 01:45:17,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2022-11-03 01:45:17,095 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-03 01:45:17,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2022-11-03 01:45:17,095 INFO L130 BoogieDeclarations]: Found specification of procedure window_read8 [2022-11-03 01:45:17,095 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read8 [2022-11-03 01:45:17,096 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-03 01:45:17,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-03 01:45:17,096 INFO L130 BoogieDeclarations]: Found specification of procedure update_stats [2022-11-03 01:45:17,096 INFO L138 BoogieDeclarations]: Found implementation of procedure update_stats [2022-11-03 01:45:17,096 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-03 01:45:17,097 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-03 01:45:17,097 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-03 01:45:17,097 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-03 01:45:17,097 INFO L130 BoogieDeclarations]: Found specification of procedure poll_vortex [2022-11-03 01:45:17,099 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_vortex [2022-11-03 01:45:17,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-03 01:45:17,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-03 01:45:17,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_window_lock_of_vortex_private [2022-11-03 01:45:17,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_window_lock_of_vortex_private [2022-11-03 01:45:17,101 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_check_media [2022-11-03 01:45:17,101 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_check_media [2022-11-03 01:45:17,101 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2022-11-03 01:45:17,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2022-11-03 01:45:17,102 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-11-03 01:45:17,102 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-11-03 01:45:17,102 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_rx [2022-11-03 01:45:17,102 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_rx [2022-11-03 01:45:17,102 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2022-11-03 01:45:17,103 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2022-11-03 01:45:17,103 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_open [2022-11-03 01:45:17,103 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_open [2022-11-03 01:45:17,103 INFO L130 BoogieDeclarations]: Found specification of procedure dump_tx_ring [2022-11-03 01:45:17,103 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_tx_ring [2022-11-03 01:45:17,104 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2022-11-03 01:45:17,104 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2022-11-03 01:45:17,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:45:17,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:45:17,104 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_probe1 [2022-11-03 01:45:17,105 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_probe1 [2022-11-03 01:45:17,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 01:45:17,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 01:45:17,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-03 01:45:17,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-03 01:45:17,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-03 01:45:17,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-03 01:45:17,106 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_on [2022-11-03 01:45:17,106 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_on [2022-11-03 01:45:17,106 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-03 01:45:17,107 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-03 01:45:17,107 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-03 01:45:17,107 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-03 01:45:17,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2022-11-03 01:45:17,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2022-11-03 01:45:17,108 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-03 01:45:17,108 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-03 01:45:17,108 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2022-11-03 01:45:17,108 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2022-11-03 01:45:17,109 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 01:45:17,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_111 [2022-11-03 01:45:17,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_111 [2022-11-03 01:45:17,109 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2022-11-03 01:45:17,109 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2022-11-03 01:45:17,110 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-03 01:45:17,110 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-03 01:45:17,110 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 01:45:17,110 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_suspend [2022-11-03 01:45:17,110 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_suspend [2022-11-03 01:45:17,112 INFO L130 BoogieDeclarations]: Found specification of procedure boomerang_interrupt [2022-11-03 01:45:17,118 INFO L138 BoogieDeclarations]: Found implementation of procedure boomerang_interrupt [2022-11-03 01:45:17,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 01:45:17,119 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 01:45:17,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2022-11-03 01:45:17,119 INFO L130 BoogieDeclarations]: Found specification of procedure rx_oom_timer [2022-11-03 01:45:17,120 INFO L138 BoogieDeclarations]: Found implementation of procedure rx_oom_timer [2022-11-03 01:45:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2022-11-03 01:45:17,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2022-11-03 01:45:17,120 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-03 01:45:17,121 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-03 01:45:17,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-03 01:45:17,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-03 01:45:17,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-03 01:45:17,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-03 01:45:17,123 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-03 01:45:17,124 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-03 01:45:17,124 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_sync [2022-11-03 01:45:17,124 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_sync [2022-11-03 01:45:17,124 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_resume [2022-11-03 01:45:17,124 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_resume [2022-11-03 01:45:17,125 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2022-11-03 01:45:17,125 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2022-11-03 01:45:17,125 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2022-11-03 01:45:17,125 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2022-11-03 01:45:17,125 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_rx [2022-11-03 01:45:17,126 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_rx [2022-11-03 01:45:17,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_105 [2022-11-03 01:45:17,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_105 [2022-11-03 01:45:17,126 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-03 01:45:17,126 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-03 01:45:17,127 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-03 01:45:17,127 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-03 01:45:17,127 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-03 01:45:17,127 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-03 01:45:17,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_133 [2022-11-03 01:45:17,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_133 [2022-11-03 01:45:17,128 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-03 01:45:17,128 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-03 01:45:17,128 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_delay [2022-11-03 01:45:17,128 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_delay [2022-11-03 01:45:17,128 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_timer [2022-11-03 01:45:17,129 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_timer [2022-11-03 01:45:17,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 01:45:17,129 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_down [2022-11-03 01:45:17,129 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_down [2022-11-03 01:45:17,129 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2022-11-03 01:45:17,130 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2022-11-03 01:45:17,130 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2022-11-03 01:45:17,130 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2022-11-03 01:45:17,130 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-03 01:45:17,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-03 01:45:17,131 INFO L130 BoogieDeclarations]: Found specification of procedure window_write8 [2022-11-03 01:45:17,131 INFO L138 BoogieDeclarations]: Found implementation of procedure window_write8 [2022-11-03 01:45:17,131 INFO L130 BoogieDeclarations]: Found specification of procedure window_read32 [2022-11-03 01:45:17,131 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read32 [2022-11-03 01:45:17,131 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dispatch_instance_register_10_2 [2022-11-03 01:45:17,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dispatch_instance_register_10_2 [2022-11-03 01:45:17,132 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-03 01:45:17,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~$Pointer$~TO~int [2022-11-03 01:45:17,132 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32_rep [2022-11-03 01:45:17,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32_rep [2022-11-03 01:45:17,132 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-03 01:45:17,133 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-03 01:45:17,133 INFO L130 BoogieDeclarations]: Found specification of procedure vortex_up [2022-11-03 01:45:17,133 INFO L138 BoogieDeclarations]: Found implementation of procedure vortex_up [2022-11-03 01:45:17,133 INFO L130 BoogieDeclarations]: Found specification of procedure window_read16 [2022-11-03 01:45:17,133 INFO L138 BoogieDeclarations]: Found implementation of procedure window_read16 [2022-11-03 01:45:17,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-03 01:45:17,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-03 01:45:17,134 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-03 01:45:17,134 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-03 01:45:17,134 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-03 01:45:17,135 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-03 01:45:17,135 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-03 01:45:17,135 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-03 01:45:17,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_vortex_private [2022-11-03 01:45:17,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_vortex_private [2022-11-03 01:45:17,136 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2022-11-03 01:45:17,136 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2022-11-03 01:45:17,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_112 [2022-11-03 01:45:17,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_112 [2022-11-03 01:45:17,136 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_113 [2022-11-03 01:45:17,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_113 [2022-11-03 01:45:17,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:45:17,137 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-03 01:45:17,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-03 01:45:17,137 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2022-11-03 01:45:17,138 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2022-11-03 01:45:18,675 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:45:18,687 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:45:21,815 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-03 01:45:30,789 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:45:34,882 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:45:34,882 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-03 01:45:34,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:45:34 BoogieIcfgContainer [2022-11-03 01:45:34,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:45:34,896 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:45:34,896 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:45:34,901 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:45:34,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:45:09" (1/3) ... [2022-11-03 01:45:34,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f58e16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:45:34, skipping insertion in model container [2022-11-03 01:45:34,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:45:15" (2/3) ... [2022-11-03 01:45:34,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f58e16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:45:34, skipping insertion in model container [2022-11-03 01:45:34,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:45:34" (3/3) ... [2022-11-03 01:45:34,905 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-alloc-spinlock_drivers-net-ethernet-3com-3c59x.cil.i [2022-11-03 01:45:34,933 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:45:34,933 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:45:35,215 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:45:35,224 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;@526ee4bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:45:35,225 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:45:35,242 INFO L276 IsEmpty]: Start isEmpty. Operand has 2088 states, 1173 states have (on average 1.3009377664109123) internal successors, (1526), 1259 states have internal predecessors, (1526), 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) [2022-11-03 01:45:35,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-11-03 01:45:35,302 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:45:35,303 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] [2022-11-03 01:45:35,305 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:45:35,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:45:35,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1318744723, now seen corresponding path program 1 times [2022-11-03 01:45:35,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:45:35,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153352390] [2022-11-03 01:45:35,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:45:35,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:45:36,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:45:46,667 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2022-11-03 01:45:46,668 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:45:46,669 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153352390] [2022-11-03 01:45:46,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153352390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:45:46,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:45:46,671 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:45:46,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245653569] [2022-11-03 01:45:46,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:45:46,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:45:46,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:45:46,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:45:46,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:45:46,742 INFO L87 Difference]: Start difference. First operand has 2088 states, 1173 states have (on average 1.3009377664109123) internal successors, (1526), 1259 states have internal predecessors, (1526), 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) [2022-11-03 01:45:49,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:53,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:45:56,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:07,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:46:07,602 INFO L93 Difference]: Finished difference Result 4913 states and 7223 transitions. [2022-11-03 01:46:07,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 01:46:07,608 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 [2022-11-03 01:46:07,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:46:07,682 INFO L225 Difference]: With dead ends: 4913 [2022-11-03 01:46:07,683 INFO L226 Difference]: Without dead ends: 2757 [2022-11-03 01:46:07,722 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-03 01:46:07,728 INFO L413 NwaCegarLoop]: 2936 mSDtfsCounter, 997 mSDsluCounter, 12376 mSDsCounter, 0 mSdLazyCounter, 2494 mSolverCounterSat, 6 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 998 SdHoareTripleChecker+Valid, 13836 SdHoareTripleChecker+Invalid, 2503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 2494 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.6s IncrementalHoareTripleChecker+Time [2022-11-03 01:46:07,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [998 Valid, 13836 Invalid, 2503 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [6 Valid, 2494 Invalid, 3 Unknown, 0 Unchecked, 19.6s Time] [2022-11-03 01:46:07,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2757 states. [2022-11-03 01:46:08,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2757 to 2750. [2022-11-03 01:46:08,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2750 states, 1568 states have (on average 1.280612244897959) internal successors, (2008), 1670 states have internal predecessors, (2008), 957 states have call successors, (957), 236 states have call predecessors, (957), 224 states have return successors, (997), 918 states have call predecessors, (997), 957 states have call successors, (997) [2022-11-03 01:46:08,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2750 states to 2750 states and 3962 transitions. [2022-11-03 01:46:08,291 INFO L78 Accepts]: Start accepts. Automaton has 2750 states and 3962 transitions. Word has length 118 [2022-11-03 01:46:08,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:46:08,296 INFO L495 AbstractCegarLoop]: Abstraction has 2750 states and 3962 transitions. [2022-11-03 01:46:08,297 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) [2022-11-03 01:46:08,297 INFO L276 IsEmpty]: Start isEmpty. Operand 2750 states and 3962 transitions. [2022-11-03 01:46:08,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-11-03 01:46:08,322 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:46:08,323 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] [2022-11-03 01:46:08,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:46:08,324 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:46:08,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:46:08,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1782148107, now seen corresponding path program 1 times [2022-11-03 01:46:08,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:46:08,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682827924] [2022-11-03 01:46:08,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:46:08,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:46:11,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:46:12,897 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-11-03 01:46:12,898 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:46:12,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682827924] [2022-11-03 01:46:12,899 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682827924] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:46:12,899 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:46:12,899 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:46:12,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974540601] [2022-11-03 01:46:12,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:46:12,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:46:12,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:46:12,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:46:12,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:46:12,904 INFO L87 Difference]: Start difference. First operand 2750 states and 3962 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) [2022-11-03 01:46:15,229 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:18,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:20,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:22,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:24,009 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:29,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:31,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:46:31,185 INFO L93 Difference]: Finished difference Result 4779 states and 6939 transitions. [2022-11-03 01:46:31,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 01:46:31,188 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 [2022-11-03 01:46:31,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:46:31,213 INFO L225 Difference]: With dead ends: 4779 [2022-11-03 01:46:31,213 INFO L226 Difference]: Without dead ends: 2754 [2022-11-03 01:46:31,229 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 [2022-11-03 01:46:31,231 INFO L413 NwaCegarLoop]: 2592 mSDtfsCounter, 6 mSDsluCounter, 8857 mSDsCounter, 0 mSdLazyCounter, 1472 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 10355 SdHoareTripleChecker+Invalid, 1476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1472 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.8s IncrementalHoareTripleChecker+Time [2022-11-03 01:46:31,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 10355 Invalid, 1476 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1472 Invalid, 4 Unknown, 0 Unchecked, 17.8s Time] [2022-11-03 01:46:31,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2754 states. [2022-11-03 01:46:31,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2754 to 2754. [2022-11-03 01:46:31,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2754 states, 1571 states have (on average 1.2800763844684915) internal successors, (2011), 1673 states have internal predecessors, (2011), 957 states have call successors, (957), 237 states have call predecessors, (957), 225 states have return successors, (997), 918 states have call predecessors, (997), 957 states have call successors, (997) [2022-11-03 01:46:31,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2754 states to 2754 states and 3965 transitions. [2022-11-03 01:46:31,473 INFO L78 Accepts]: Start accepts. Automaton has 2754 states and 3965 transitions. Word has length 201 [2022-11-03 01:46:31,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:46:31,476 INFO L495 AbstractCegarLoop]: Abstraction has 2754 states and 3965 transitions. [2022-11-03 01:46:31,477 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) [2022-11-03 01:46:31,477 INFO L276 IsEmpty]: Start isEmpty. Operand 2754 states and 3965 transitions. [2022-11-03 01:46:31,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-11-03 01:46:31,494 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:46:31,494 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] [2022-11-03 01:46:31,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:46:31,495 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:46:31,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:46:31,496 INFO L85 PathProgramCache]: Analyzing trace with hash -201258096, now seen corresponding path program 1 times [2022-11-03 01:46:31,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:46:31,497 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702552070] [2022-11-03 01:46:31,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:46:31,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:46:33,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:46:35,044 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2022-11-03 01:46:35,045 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:46:35,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702552070] [2022-11-03 01:46:35,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702552070] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:46:35,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:46:35,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:46:35,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244709463] [2022-11-03 01:46:35,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:46:35,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:46:35,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:46:35,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:46:35,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:46:35,057 INFO L87 Difference]: Start difference. First operand 2754 states and 3965 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) [2022-11-03 01:46:36,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:38,900 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:40,922 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:42,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:44,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:49,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:52,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:46:52,117 INFO L93 Difference]: Finished difference Result 4795 states and 6953 transitions. [2022-11-03 01:46:52,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 01:46:52,121 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 [2022-11-03 01:46:52,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:46:52,157 INFO L225 Difference]: With dead ends: 4795 [2022-11-03 01:46:52,158 INFO L226 Difference]: Without dead ends: 2766 [2022-11-03 01:46:52,177 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 [2022-11-03 01:46:52,178 INFO L413 NwaCegarLoop]: 2602 mSDtfsCounter, 19 mSDsluCounter, 8879 mSDsCounter, 0 mSdLazyCounter, 1480 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 10382 SdHoareTripleChecker+Invalid, 1483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1480 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.7s IncrementalHoareTripleChecker+Time [2022-11-03 01:46:52,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 10382 Invalid, 1483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1480 Invalid, 3 Unknown, 0 Unchecked, 16.7s Time] [2022-11-03 01:46:52,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2766 states. [2022-11-03 01:46:52,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2766 to 2758. [2022-11-03 01:46:52,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2758 states, 1574 states have (on average 1.2795425667090217) internal successors, (2014), 1676 states have internal predecessors, (2014), 957 states have call successors, (957), 238 states have call predecessors, (957), 226 states have return successors, (997), 918 states have call predecessors, (997), 957 states have call successors, (997) [2022-11-03 01:46:52,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2758 states to 2758 states and 3968 transitions. [2022-11-03 01:46:52,429 INFO L78 Accepts]: Start accepts. Automaton has 2758 states and 3968 transitions. Word has length 198 [2022-11-03 01:46:52,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:46:52,430 INFO L495 AbstractCegarLoop]: Abstraction has 2758 states and 3968 transitions. [2022-11-03 01:46:52,431 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) [2022-11-03 01:46:52,431 INFO L276 IsEmpty]: Start isEmpty. Operand 2758 states and 3968 transitions. [2022-11-03 01:46:52,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2022-11-03 01:46:52,446 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:46:52,446 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 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] [2022-11-03 01:46:52,446 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 01:46:52,447 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:46:52,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:46:52,448 INFO L85 PathProgramCache]: Analyzing trace with hash 131865195, now seen corresponding path program 1 times [2022-11-03 01:46:52,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:46:52,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549995249] [2022-11-03 01:46:52,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:46:52,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:46:52,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:46:53,168 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-11-03 01:46:53,168 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:46:53,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549995249] [2022-11-03 01:46:53,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549995249] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:46:53,169 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:46:53,169 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:46:53,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496965791] [2022-11-03 01:46:53,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:46:53,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:46:53,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:46:53,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:46:53,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:46:53,172 INFO L87 Difference]: Start difference. First operand 2758 states and 3968 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-03 01:46:55,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:46:57,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:47:01,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:47:01,326 INFO L93 Difference]: Finished difference Result 6675 states and 9542 transitions. [2022-11-03 01:47:01,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:47:01,330 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) Word has length 204 [2022-11-03 01:47:01,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:47:01,367 INFO L225 Difference]: With dead ends: 6675 [2022-11-03 01:47:01,367 INFO L226 Difference]: Without dead ends: 4075 [2022-11-03 01:47:01,390 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:47:01,397 INFO L413 NwaCegarLoop]: 3115 mSDtfsCounter, 2495 mSDsluCounter, 2312 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2496 SdHoareTripleChecker+Valid, 5147 SdHoareTripleChecker+Invalid, 658 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2022-11-03 01:47:01,399 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2496 Valid, 5147 Invalid, 658 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 657 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2022-11-03 01:47:01,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4075 states. [2022-11-03 01:47:01,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4075 to 4069. [2022-11-03 01:47:01,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4069 states, 2291 states have (on average 1.2758620689655173) internal successors, (2923), 2446 states have internal predecessors, (2923), 1426 states have call successors, (1426), 363 states have call predecessors, (1426), 351 states have return successors, (1465), 1376 states have call predecessors, (1465), 1426 states have call successors, (1465) [2022-11-03 01:47:01,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4069 states to 4069 states and 5814 transitions. [2022-11-03 01:47:01,756 INFO L78 Accepts]: Start accepts. Automaton has 4069 states and 5814 transitions. Word has length 204 [2022-11-03 01:47:01,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:47:01,757 INFO L495 AbstractCegarLoop]: Abstraction has 4069 states and 5814 transitions. [2022-11-03 01:47:01,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (36), 3 states have call predecessors, (36), 3 states have call successors, (36) [2022-11-03 01:47:01,758 INFO L276 IsEmpty]: Start isEmpty. Operand 4069 states and 5814 transitions. [2022-11-03 01:47:01,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2022-11-03 01:47:01,784 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:47:01,785 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] [2022-11-03 01:47:01,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 01:47:01,785 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:47:01,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:47:01,786 INFO L85 PathProgramCache]: Analyzing trace with hash -1114395318, now seen corresponding path program 1 times [2022-11-03 01:47:01,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:47:01,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668668137] [2022-11-03 01:47:01,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:47:01,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:47:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:47:13,485 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 430 trivial. 0 not checked. [2022-11-03 01:47:13,485 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:47:13,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668668137] [2022-11-03 01:47:13,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668668137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:47:13,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:47:13,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-11-03 01:47:13,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350925668] [2022-11-03 01:47:13,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:47:13,487 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-03 01:47:13,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:47:13,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-03 01:47:13,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-11-03 01:47:13,488 INFO L87 Difference]: Start difference. First operand 4069 states and 5814 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) [2022-11-03 01:47:18,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:47:23,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:47:25,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:47:28,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:47:29,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:47:31,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:48:19,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:48:19,425 INFO L93 Difference]: Finished difference Result 8955 states and 12945 transitions. [2022-11-03 01:48:19,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-03 01:48:19,425 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 [2022-11-03 01:48:19,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:48:19,511 INFO L225 Difference]: With dead ends: 8955 [2022-11-03 01:48:19,511 INFO L226 Difference]: Without dead ends: 8953 [2022-11-03 01:48:19,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2022-11-03 01:48:19,521 INFO L413 NwaCegarLoop]: 3341 mSDtfsCounter, 5335 mSDsluCounter, 12927 mSDsCounter, 0 mSdLazyCounter, 21084 mSolverCounterSat, 4677 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6163 SdHoareTripleChecker+Valid, 14275 SdHoareTripleChecker+Invalid, 25765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 4677 IncrementalHoareTripleChecker+Valid, 21084 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 63.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:48:19,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6163 Valid, 14275 Invalid, 25765 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [4677 Valid, 21084 Invalid, 4 Unknown, 0 Unchecked, 63.3s Time] [2022-11-03 01:48:19,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8953 states. [2022-11-03 01:48:20,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8953 to 8546. [2022-11-03 01:48:20,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8546 states, 4842 states have (on average 1.271788517141677) internal successors, (6158), 5170 states have internal predecessors, (6158), 2930 states have call successors, (2930), 800 states have call predecessors, (2930), 773 states have return successors, (3185), 2810 states have call predecessors, (3185), 2930 states have call successors, (3185) [2022-11-03 01:48:20,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8546 states to 8546 states and 12273 transitions. [2022-11-03 01:48:20,569 INFO L78 Accepts]: Start accepts. Automaton has 8546 states and 12273 transitions. Word has length 320 [2022-11-03 01:48:20,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:48:20,574 INFO L495 AbstractCegarLoop]: Abstraction has 8546 states and 12273 transitions. [2022-11-03 01:48:20,574 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) [2022-11-03 01:48:20,574 INFO L276 IsEmpty]: Start isEmpty. Operand 8546 states and 12273 transitions. [2022-11-03 01:48:20,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2022-11-03 01:48:20,601 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:48:20,601 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:48:20,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 01:48:20,602 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:48:20,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:48:20,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1691707317, now seen corresponding path program 1 times [2022-11-03 01:48:20,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:48:20,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894536287] [2022-11-03 01:48:20,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:48:20,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:48:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:48:28,558 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 317 trivial. 0 not checked. [2022-11-03 01:48:28,558 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:48:28,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894536287] [2022-11-03 01:48:28,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894536287] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:48:28,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:48:28,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-03 01:48:28,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455548834] [2022-11-03 01:48:28,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:48:28,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-03 01:48:28,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:48:28,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-03 01:48:28,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2022-11-03 01:48:28,561 INFO L87 Difference]: Start difference. First operand 8546 states and 12273 transitions. Second operand has 9 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 4 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (42), 5 states have call predecessors, (42), 4 states have call successors, (42) [2022-11-03 01:48:34,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:48:36,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:48:38,355 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:48:40,381 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:48:46,144 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:49:03,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:49:06,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:49:22,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:49:22,795 INFO L93 Difference]: Finished difference Result 9971 states and 14427 transitions. [2022-11-03 01:49:22,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-03 01:49:22,796 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 4 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (42), 5 states have call predecessors, (42), 4 states have call successors, (42) Word has length 262 [2022-11-03 01:49:22,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:49:22,866 INFO L225 Difference]: With dead ends: 9971 [2022-11-03 01:49:22,867 INFO L226 Difference]: Without dead ends: 9969 [2022-11-03 01:49:22,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=57, Invalid=183, Unknown=0, NotChecked=0, Total=240 [2022-11-03 01:49:22,874 INFO L413 NwaCegarLoop]: 2543 mSDtfsCounter, 2299 mSDsluCounter, 8432 mSDsCounter, 0 mSdLazyCounter, 12584 mSolverCounterSat, 2185 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2572 SdHoareTripleChecker+Valid, 9729 SdHoareTripleChecker+Invalid, 14776 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2185 IncrementalHoareTripleChecker+Valid, 12584 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:49:22,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2572 Valid, 9729 Invalid, 14776 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2185 Valid, 12584 Invalid, 7 Unknown, 0 Unchecked, 52.4s Time] [2022-11-03 01:49:22,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9969 states. [2022-11-03 01:49:23,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9969 to 9502. [2022-11-03 01:49:23,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9502 states, 5395 states have (on average 1.2672845227062095) internal successors, (6837), 5753 states have internal predecessors, (6837), 3217 states have call successors, (3217), 902 states have call predecessors, (3217), 889 states have return successors, (3592), 3094 states have call predecessors, (3592), 3217 states have call successors, (3592) [2022-11-03 01:49:24,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9502 states to 9502 states and 13646 transitions. [2022-11-03 01:49:24,061 INFO L78 Accepts]: Start accepts. Automaton has 9502 states and 13646 transitions. Word has length 262 [2022-11-03 01:49:24,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:49:24,062 INFO L495 AbstractCegarLoop]: Abstraction has 9502 states and 13646 transitions. [2022-11-03 01:49:24,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.875) internal successors, (103), 8 states have internal predecessors, (103), 4 states have call successors, (45), 3 states have call predecessors, (45), 3 states have return successors, (42), 5 states have call predecessors, (42), 4 states have call successors, (42) [2022-11-03 01:49:24,063 INFO L276 IsEmpty]: Start isEmpty. Operand 9502 states and 13646 transitions. [2022-11-03 01:49:24,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2022-11-03 01:49:24,105 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:49:24,105 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] [2022-11-03 01:49:24,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 01:49:24,106 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:49:24,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:49:24,107 INFO L85 PathProgramCache]: Analyzing trace with hash 807845533, now seen corresponding path program 1 times [2022-11-03 01:49:24,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:49:24,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033590984] [2022-11-03 01:49:24,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:49:24,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:49:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:49:24,933 INFO L134 CoverageAnalysis]: Checked inductivity of 771 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 768 trivial. 0 not checked. [2022-11-03 01:49:24,934 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:49:24,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033590984] [2022-11-03 01:49:24,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033590984] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:49:24,934 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:49:24,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 01:49:24,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314951088] [2022-11-03 01:49:24,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:49:24,936 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:49:24,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:49:24,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:49:24,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:49:24,937 INFO L87 Difference]: Start difference. First operand 9502 states and 13646 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) [2022-11-03 01:49:27,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:49:30,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:49:44,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:49:44,410 INFO L93 Difference]: Finished difference Result 28267 states and 41373 transitions. [2022-11-03 01:49:44,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 01:49:44,411 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 [2022-11-03 01:49:44,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:49:44,548 INFO L225 Difference]: With dead ends: 28267 [2022-11-03 01:49:44,549 INFO L226 Difference]: Without dead ends: 18781 [2022-11-03 01:49:44,627 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 [2022-11-03 01:49:44,628 INFO L413 NwaCegarLoop]: 5391 mSDtfsCounter, 4977 mSDsluCounter, 5601 mSDsCounter, 0 mSdLazyCounter, 4412 mSolverCounterSat, 70 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4977 SdHoareTripleChecker+Valid, 10080 SdHoareTripleChecker+Invalid, 4484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 4412 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2022-11-03 01:49:44,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4977 Valid, 10080 Invalid, 4484 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [70 Valid, 4412 Invalid, 2 Unknown, 0 Unchecked, 17.5s Time] [2022-11-03 01:49:44,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18781 states. [2022-11-03 01:49:46,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18781 to 18328. [2022-11-03 01:49:46,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18328 states, 10365 states have (on average 1.2633863965267729) internal successors, (13095), 11078 states have internal predecessors, (13095), 6216 states have call successors, (6216), 1754 states have call predecessors, (6216), 1746 states have return successors, (7086), 6003 states have call predecessors, (7086), 6216 states have call successors, (7086) [2022-11-03 01:49:46,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18328 states to 18328 states and 26397 transitions. [2022-11-03 01:49:46,560 INFO L78 Accepts]: Start accepts. Automaton has 18328 states and 26397 transitions. Word has length 425 [2022-11-03 01:49:46,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:49:46,561 INFO L495 AbstractCegarLoop]: Abstraction has 18328 states and 26397 transitions. [2022-11-03 01:49:46,562 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) [2022-11-03 01:49:46,562 INFO L276 IsEmpty]: Start isEmpty. Operand 18328 states and 26397 transitions. [2022-11-03 01:49:46,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2022-11-03 01:49:46,607 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:49:46,608 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] [2022-11-03 01:49:46,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 01:49:46,609 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:49:46,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:49:46,609 INFO L85 PathProgramCache]: Analyzing trace with hash -598718326, now seen corresponding path program 1 times [2022-11-03 01:49:46,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:49:46,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463438647] [2022-11-03 01:49:46,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:49:46,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:49:46,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:49:47,182 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 531 trivial. 0 not checked. [2022-11-03 01:49:47,182 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:49:47,183 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463438647] [2022-11-03 01:49:47,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463438647] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:49:47,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:49:47,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:49:47,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118763419] [2022-11-03 01:49:47,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:49:47,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:49:47,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:49:47,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:49:47,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:49:47,186 INFO L87 Difference]: Start difference. First operand 18328 states and 26397 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) [2022-11-03 01:49:49,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:49:52,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:49:56,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:49:56,303 INFO L93 Difference]: Finished difference Result 33218 states and 48084 transitions. [2022-11-03 01:49:56,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:49:56,306 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 [2022-11-03 01:49:56,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:49:56,454 INFO L225 Difference]: With dead ends: 33218 [2022-11-03 01:49:56,455 INFO L226 Difference]: Without dead ends: 18561 [2022-11-03 01:49:56,548 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:49:56,549 INFO L413 NwaCegarLoop]: 2597 mSDtfsCounter, 40 mSDsluCounter, 2904 mSDsCounter, 0 mSdLazyCounter, 760 mSolverCounterSat, 3 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 5139 SdHoareTripleChecker+Invalid, 765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 760 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2022-11-03 01:49:56,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 5139 Invalid, 765 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 760 Invalid, 2 Unknown, 0 Unchecked, 7.7s Time] [2022-11-03 01:49:56,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18561 states. [2022-11-03 01:49:58,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18561 to 18466. [2022-11-03 01:49:58,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18466 states, 10444 states have (on average 1.2650325545767904) internal successors, (13212), 11167 states have internal predecessors, (13212), 6275 states have call successors, (6275), 1754 states have call predecessors, (6275), 1746 states have return successors, (7147), 6057 states have call predecessors, (7147), 6275 states have call successors, (7147) [2022-11-03 01:49:58,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18466 states to 18466 states and 26634 transitions. [2022-11-03 01:49:58,957 INFO L78 Accepts]: Start accepts. Automaton has 18466 states and 26634 transitions. Word has length 366 [2022-11-03 01:49:58,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:49:58,958 INFO L495 AbstractCegarLoop]: Abstraction has 18466 states and 26634 transitions. [2022-11-03 01:49:58,958 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) [2022-11-03 01:49:58,958 INFO L276 IsEmpty]: Start isEmpty. Operand 18466 states and 26634 transitions. [2022-11-03 01:49:58,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2022-11-03 01:49:58,998 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:49:58,999 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] [2022-11-03 01:49:58,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 01:49:58,999 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:49:59,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:49:59,000 INFO L85 PathProgramCache]: Analyzing trace with hash 12905827, now seen corresponding path program 1 times [2022-11-03 01:49:59,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:49:59,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262330967] [2022-11-03 01:49:59,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:49:59,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:49:59,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:50:07,046 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 533 trivial. 0 not checked. [2022-11-03 01:50:07,046 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:50:07,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262330967] [2022-11-03 01:50:07,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262330967] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:50:07,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:50:07,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-03 01:50:07,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946959985] [2022-11-03 01:50:07,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:50:07,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-03 01:50:07,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:50:07,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-03 01:50:07,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2022-11-03 01:50:07,049 INFO L87 Difference]: Start difference. First operand 18466 states and 26634 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) [2022-11-03 01:50:12,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:14,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:15,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:19,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:39,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:41,808 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:43,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:50:45,856 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:03,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:05,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:18,769 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:20,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:22,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:24,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:38,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:40,690 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:42,719 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:51:44,745 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:05,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:52:05,017 INFO L93 Difference]: Finished difference Result 42864 states and 63217 transitions. [2022-11-03 01:52:05,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-03 01:52:05,018 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 [2022-11-03 01:52:05,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:52:05,262 INFO L225 Difference]: With dead ends: 42864 [2022-11-03 01:52:05,262 INFO L226 Difference]: Without dead ends: 42862 [2022-11-03 01:52:05,289 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 284 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=242, Invalid=880, Unknown=0, NotChecked=0, Total=1122 [2022-11-03 01:52:05,290 INFO L413 NwaCegarLoop]: 3360 mSDtfsCounter, 12123 mSDsluCounter, 12839 mSDsCounter, 0 mSdLazyCounter, 34640 mSolverCounterSat, 14121 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 103.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13438 SdHoareTripleChecker+Valid, 14085 SdHoareTripleChecker+Invalid, 48777 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 14121 IncrementalHoareTripleChecker+Valid, 34640 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 111.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:52:05,290 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13438 Valid, 14085 Invalid, 48777 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [14121 Valid, 34640 Invalid, 16 Unknown, 0 Unchecked, 111.1s Time] [2022-11-03 01:52:05,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42862 states. [2022-11-03 01:52:08,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42862 to 41639. [2022-11-03 01:52:08,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41639 states, 23559 states have (on average 1.2564624984082515) internal successors, (29601), 25092 states have internal predecessors, (29601), 13933 states have call successors, (13933), 4212 states have call predecessors, (13933), 4146 states have return successors, (17463), 13421 states have call predecessors, (17463), 13933 states have call successors, (17463) [2022-11-03 01:52:08,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41639 states to 41639 states and 60997 transitions. [2022-11-03 01:52:08,910 INFO L78 Accepts]: Start accepts. Automaton has 41639 states and 60997 transitions. Word has length 375 [2022-11-03 01:52:08,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:52:08,911 INFO L495 AbstractCegarLoop]: Abstraction has 41639 states and 60997 transitions. [2022-11-03 01:52:08,911 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) [2022-11-03 01:52:08,912 INFO L276 IsEmpty]: Start isEmpty. Operand 41639 states and 60997 transitions. [2022-11-03 01:52:08,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2022-11-03 01:52:08,954 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:52:08,954 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] [2022-11-03 01:52:08,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 01:52:08,955 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:52:08,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:52:08,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1324992846, now seen corresponding path program 1 times [2022-11-03 01:52:08,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:52:08,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542043328] [2022-11-03 01:52:08,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:52:08,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:52:09,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:52:09,887 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 497 trivial. 0 not checked. [2022-11-03 01:52:09,887 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:52:09,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542043328] [2022-11-03 01:52:09,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542043328] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:52:09,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:52:09,888 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:52:09,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324532805] [2022-11-03 01:52:09,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:52:09,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:52:09,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:52:09,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:52:09,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:52:09,890 INFO L87 Difference]: Start difference. First operand 41639 states and 60997 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) [2022-11-03 01:52:12,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:14,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:20,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:52:20,441 INFO L93 Difference]: Finished difference Result 58639 states and 85868 transitions. [2022-11-03 01:52:20,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:52:20,444 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 [2022-11-03 01:52:20,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:52:20,637 INFO L225 Difference]: With dead ends: 58639 [2022-11-03 01:52:20,637 INFO L226 Difference]: Without dead ends: 35144 [2022-11-03 01:52:20,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:52:20,778 INFO L413 NwaCegarLoop]: 2584 mSDtfsCounter, 8 mSDsluCounter, 2929 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 5157 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:52:20,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 5157 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 738 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-11-03 01:52:20,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35144 states. [2022-11-03 01:52:23,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35144 to 34836. [2022-11-03 01:52:23,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34836 states, 19577 states have (on average 1.2550952648516116) internal successors, (24571), 20877 states have internal predecessors, (24571), 11738 states have call successors, (11738), 3517 states have call predecessors, (11738), 3520 states have return successors, (14021), 11390 states have call predecessors, (14021), 11738 states have call successors, (14021) [2022-11-03 01:52:24,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34836 states to 34836 states and 50330 transitions. [2022-11-03 01:52:24,085 INFO L78 Accepts]: Start accepts. Automaton has 34836 states and 50330 transitions. Word has length 347 [2022-11-03 01:52:24,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:52:24,085 INFO L495 AbstractCegarLoop]: Abstraction has 34836 states and 50330 transitions. [2022-11-03 01:52:24,086 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) [2022-11-03 01:52:24,086 INFO L276 IsEmpty]: Start isEmpty. Operand 34836 states and 50330 transitions. [2022-11-03 01:52:24,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2022-11-03 01:52:24,137 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:52:24,137 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] [2022-11-03 01:52:24,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-03 01:52:24,138 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:52:24,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:52:24,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1712938894, now seen corresponding path program 1 times [2022-11-03 01:52:24,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:52:24,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441551526] [2022-11-03 01:52:24,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:52:24,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:52:24,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:52:24,922 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2022-11-03 01:52:24,923 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:52:24,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441551526] [2022-11-03 01:52:24,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441551526] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:52:24,923 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:52:24,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:52:24,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961544635] [2022-11-03 01:52:24,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:52:24,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:52:24,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:52:24,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:52:24,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:52:24,926 INFO L87 Difference]: Start difference. First operand 34836 states and 50330 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) [2022-11-03 01:52:27,993 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 [] [2022-11-03 01:52:30,245 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 01:52:35,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:52:35,304 INFO L93 Difference]: Finished difference Result 52267 states and 75871 transitions. [2022-11-03 01:52:35,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:52:35,307 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 [2022-11-03 01:52:35,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:52:35,516 INFO L225 Difference]: With dead ends: 52267 [2022-11-03 01:52:35,516 INFO L226 Difference]: Without dead ends: 35588 [2022-11-03 01:52:35,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:52:35,620 INFO L413 NwaCegarLoop]: 2852 mSDtfsCounter, 225 mSDsluCounter, 3010 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 5498 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-03 01:52:35,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [329 Valid, 5498 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 768 Invalid, 2 Unknown, 0 Unchecked, 7.5s Time] [2022-11-03 01:52:35,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35588 states. [2022-11-03 01:52:38,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35588 to 34837. [2022-11-03 01:52:38,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34837 states, 19578 states have (on average 1.2550822351619164) internal successors, (24572), 20878 states have internal predecessors, (24572), 11738 states have call successors, (11738), 3517 states have call predecessors, (11738), 3520 states have return successors, (14021), 11390 states have call predecessors, (14021), 11738 states have call successors, (14021) [2022-11-03 01:52:39,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34837 states to 34837 states and 50331 transitions. [2022-11-03 01:52:39,112 INFO L78 Accepts]: Start accepts. Automaton has 34837 states and 50331 transitions. Word has length 401 [2022-11-03 01:52:39,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:52:39,113 INFO L495 AbstractCegarLoop]: Abstraction has 34837 states and 50331 transitions. [2022-11-03 01:52:39,113 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) [2022-11-03 01:52:39,114 INFO L276 IsEmpty]: Start isEmpty. Operand 34837 states and 50331 transitions. [2022-11-03 01:52:39,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2022-11-03 01:52:39,191 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:52:39,192 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] [2022-11-03 01:52:39,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-03 01:52:39,192 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:52:39,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:52:39,193 INFO L85 PathProgramCache]: Analyzing trace with hash 487672109, now seen corresponding path program 1 times [2022-11-03 01:52:39,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:52:39,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136382919] [2022-11-03 01:52:39,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:52:39,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:52:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:52:40,234 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 710 trivial. 0 not checked. [2022-11-03 01:52:40,241 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:52:40,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136382919] [2022-11-03 01:52:40,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136382919] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:52:40,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910322241] [2022-11-03 01:52:40,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:52:40,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:52:40,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca507f56-334b-4181-9373-5afa43cdc713/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:52:40,246 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca507f56-334b-4181-9373-5afa43cdc713/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:52:40,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ca507f56-334b-4181-9373-5afa43cdc713/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 01:52:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:52:42,613 INFO L263 TraceCheckSpWp]: Trace formula consists of 8378 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 01:52:42,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:52:42,754 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 239 proven. 1 refuted. 0 times theorem prover too weak. 471 trivial. 0 not checked. [2022-11-03 01:52:42,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:52:43,526 INFO L134 CoverageAnalysis]: Checked inductivity of 711 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 710 trivial. 0 not checked. [2022-11-03 01:52:43,527 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [910322241] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:52:43,527 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [597248349] [2022-11-03 01:52:43,558 INFO L159 IcfgInterpreter]: Started Sifa with 261 locations of interest [2022-11-03 01:52:43,558 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:52:43,563 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:52:43,568 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:52:43,569 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:54:43,896 WARN L234 SmtUtils]: Spent 5.89s on a formula simplification. DAG size of input: 7396 DAG size of output: 7199 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-03 01:54:54,379 WARN L234 SmtUtils]: Spent 5.46s on a formula simplification that was a NOOP. DAG size: 7139 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-03 01:55:00,360 WARN L234 SmtUtils]: Spent 5.91s on a formula simplification. DAG size of input: 7396 DAG size of output: 7199 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-03 01:58:14,761 WARN L234 SmtUtils]: Spent 5.85s on a formula simplification that was a NOOP. DAG size: 7205 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2022-11-03 01:58:20,175 WARN L234 SmtUtils]: Spent 5.39s on a formula simplification that was a NOOP. DAG size: 7205 (called from [L 211] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm)