./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bff41-7332-4dbb-ad9d-e6ddfa0c180b/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bff41-7332-4dbb-ad9d-e6ddfa0c180b/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bff41-7332-4dbb-ad9d-e6ddfa0c180b/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bff41-7332-4dbb-ad9d-e6ddfa0c180b/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bff41-7332-4dbb-ad9d-e6ddfa0c180b/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bff41-7332-4dbb-ad9d-e6ddfa0c180b/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 992a1e8d90338cdabe7a076eea5104d9629c0e7f956adc14aa39d01d99d3f218 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 13:50:43,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 13:50:43,500 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 13:50:43,526 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 13:50:43,527 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 13:50:43,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 13:50:43,529 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 13:50:43,531 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 13:50:43,532 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 13:50:43,533 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 13:50:43,534 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 13:50:43,535 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 13:50:43,536 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 13:50:43,537 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 13:50:43,538 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 13:50:43,539 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 13:50:43,540 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 13:50:43,541 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 13:50:43,543 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 13:50:43,545 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 13:50:43,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 13:50:43,548 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 13:50:43,549 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 13:50:43,550 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 13:50:43,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 13:50:43,554 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 13:50:43,555 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 13:50:43,556 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 13:50:43,556 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 13:50:43,557 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 13:50:43,558 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 13:50:43,559 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 13:50:43,559 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 13:50:43,560 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 13:50:43,561 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 13:50:43,562 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 13:50:43,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 13:50:43,563 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 13:50:43,563 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 13:50:43,564 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 13:50:43,565 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 13:50:43,566 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bff41-7332-4dbb-ad9d-e6ddfa0c180b/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 13:50:43,587 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 13:50:43,587 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 13:50:43,588 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 13:50:43,588 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 13:50:43,588 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 13:50:43,589 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 13:50:43,589 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 13:50:43,589 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 13:50:43,589 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 13:50:43,590 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 13:50:43,590 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 13:50:43,590 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 13:50:43,590 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 13:50:43,590 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 13:50:43,591 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 13:50:43,591 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 13:50:43,591 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 13:50:43,591 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 13:50:43,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 13:50:43,592 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 13:50:43,592 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 13:50:43,593 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 13:50:43,593 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 13:50:43,593 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 13:50:43,593 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 13:50:43,593 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 13:50:43,594 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 13:50:43,594 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 13:50:43,594 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 13:50:43,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:50:43,595 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 13:50:43,595 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 13:50:43,595 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 13:50:43,595 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 13:50:43,595 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 13:50:43,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 13:50:43,596 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 13:50:43,596 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 13:50:43,596 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_793bff41-7332-4dbb-ad9d-e6ddfa0c180b/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bff41-7332-4dbb-ad9d-e6ddfa0c180b/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 992a1e8d90338cdabe7a076eea5104d9629c0e7f956adc14aa39d01d99d3f218 [2022-11-23 13:50:43,855 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 13:50:43,884 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 13:50:43,887 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 13:50:43,888 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 13:50:43,889 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 13:50:43,890 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bff41-7332-4dbb-ad9d-e6ddfa0c180b/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2022-11-23 13:50:46,973 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 13:50:47,731 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 13:50:47,732 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bff41-7332-4dbb-ad9d-e6ddfa0c180b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2022-11-23 13:50:47,803 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bff41-7332-4dbb-ad9d-e6ddfa0c180b/bin/utaipan-Q6hlc19bkW/data/4e0a03e2c/a59a61fdf768434987f4333cdec1dd9f/FLAGb1409dd88 [2022-11-23 13:50:47,821 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bff41-7332-4dbb-ad9d-e6ddfa0c180b/bin/utaipan-Q6hlc19bkW/data/4e0a03e2c/a59a61fdf768434987f4333cdec1dd9f [2022-11-23 13:50:47,826 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 13:50:47,829 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 13:50:47,832 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 13:50:47,832 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 13:50:47,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 13:50:47,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:50:47" (1/1) ... [2022-11-23 13:50:47,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b3b731f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:47, skipping insertion in model container [2022-11-23 13:50:47,838 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:50:47" (1/1) ... [2022-11-23 13:50:47,846 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 13:50:48,041 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 13:50:52,555 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bff41-7332-4dbb-ad9d-e6ddfa0c180b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[492962,492975] [2022-11-23 13:50:52,559 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bff41-7332-4dbb-ad9d-e6ddfa0c180b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[493107,493120] [2022-11-23 13:50:52,585 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:50:52,677 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 13:50:53,204 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bff41-7332-4dbb-ad9d-e6ddfa0c180b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[492962,492975] [2022-11-23 13:50:53,205 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bff41-7332-4dbb-ad9d-e6ddfa0c180b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i[493107,493120] [2022-11-23 13:50:53,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:50:53,486 INFO L208 MainTranslator]: Completed translation [2022-11-23 13:50:53,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:53 WrapperNode [2022-11-23 13:50:53,487 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 13:50:53,489 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 13:50:53,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 13:50:53,489 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 13:50:53,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:53" (1/1) ... [2022-11-23 13:50:53,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:53" (1/1) ... [2022-11-23 13:50:54,192 INFO L138 Inliner]: procedures = 567, calls = 5431, calls flagged for inlining = 289, calls inlined = 263, statements flattened = 11837 [2022-11-23 13:50:54,194 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 13:50:54,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 13:50:54,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 13:50:54,196 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 13:50:54,208 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:53" (1/1) ... [2022-11-23 13:50:54,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:53" (1/1) ... [2022-11-23 13:50:54,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:53" (1/1) ... [2022-11-23 13:50:54,280 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:53" (1/1) ... [2022-11-23 13:50:54,535 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:53" (1/1) ... [2022-11-23 13:50:54,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:53" (1/1) ... [2022-11-23 13:50:54,653 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:53" (1/1) ... [2022-11-23 13:50:54,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:53" (1/1) ... [2022-11-23 13:50:54,914 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 13:50:54,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 13:50:54,915 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 13:50:54,915 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 13:50:54,916 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:53" (1/1) ... [2022-11-23 13:50:54,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:50:54,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bff41-7332-4dbb-ad9d-e6ddfa0c180b/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:50:54,956 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bff41-7332-4dbb-ad9d-e6ddfa0c180b/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 13:50:54,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_793bff41-7332-4dbb-ad9d-e6ddfa0c180b/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 13:50:55,008 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_up [2022-11-23 13:50:55,009 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_up [2022-11-23 13:50:55,009 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_media_task [2022-11-23 13:50:55,009 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_media_task [2022-11-23 13:50:55,009 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-11-23 13:50:55,009 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-11-23 13:50:55,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-23 13:50:55,010 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-23 13:50:55,010 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2022-11-23 13:50:55,010 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2022-11-23 13:50:55,010 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_84 [2022-11-23 13:50:55,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_84 [2022-11-23 13:50:55,011 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-11-23 13:50:55,011 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-11-23 13:50:55,011 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_select_media [2022-11-23 13:50:55,011 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_select_media [2022-11-23 13:50:55,011 INFO L130 BoogieDeclarations]: Found specification of procedure __set_bit_le [2022-11-23 13:50:55,011 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_bit_le [2022-11-23 13:50:55,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-23 13:50:55,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-23 13:50:55,012 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-11-23 13:50:55,013 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-11-23 13:50:55,013 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-11-23 13:50:55,014 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-11-23 13:50:55,014 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2022-11-23 13:50:55,014 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2022-11-23 13:50:55,015 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-23 13:50:55,016 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-23 13:50:55,016 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2022-11-23 13:50:55,016 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2022-11-23 13:50:55,016 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2022-11-23 13:50:55,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2022-11-23 13:50:55,017 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2022-11-23 13:50:55,017 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2022-11-23 13:50:55,017 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2022-11-23 13:50:55,017 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2022-11-23 13:50:55,017 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-23 13:50:55,018 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-23 13:50:55,018 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-11-23 13:50:55,018 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-11-23 13:50:55,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-23 13:50:55,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2022-11-23 13:50:55,019 INFO L130 BoogieDeclarations]: Found specification of procedure pnic_do_nway [2022-11-23 13:50:55,019 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic_do_nway [2022-11-23 13:50:55,019 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-11-23 13:50:55,019 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-11-23 13:50:55,020 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2022-11-23 13:50:55,020 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2022-11-23 13:50:55,021 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-11-23 13:50:55,021 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-11-23 13:50:55,021 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-11-23 13:50:55,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-11-23 13:50:55,021 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-23 13:50:55,022 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-23 13:50:55,022 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-11-23 13:50:55,022 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-11-23 13:50:55,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 13:50:55,022 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_set_wolopts [2022-11-23 13:50:55,022 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_set_wolopts [2022-11-23 13:50:55,023 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_resume [2022-11-23 13:50:55,023 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_resume [2022-11-23 13:50:55,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer_sync [2022-11-23 13:50:55,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer_sync [2022-11-23 13:50:55,023 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_interrupt [2022-11-23 13:50:55,023 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_interrupt [2022-11-23 13:50:55,024 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-11-23 13:50:55,024 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-11-23 13:50:55,024 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___3 [2022-11-23 13:50:55,024 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___3 [2022-11-23 13:50:55,025 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___1 [2022-11-23 13:50:55,025 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___1 [2022-11-23 13:50:55,026 INFO L130 BoogieDeclarations]: Found specification of procedure t21142_media_task [2022-11-23 13:50:55,026 INFO L138 BoogieDeclarations]: Found implementation of procedure t21142_media_task [2022-11-23 13:50:55,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-23 13:50:55,027 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___5 [2022-11-23 13:50:55,027 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___5 [2022-11-23 13:50:55,027 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx___4 [2022-11-23 13:50:55,027 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx___4 [2022-11-23 13:50:55,028 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-23 13:50:55,028 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-23 13:50:55,028 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-23 13:50:55,029 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-23 13:50:55,029 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-23 13:50:55,029 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2022-11-23 13:50:55,029 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2022-11-23 13:50:55,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 13:50:55,030 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2022-11-23 13:50:55,030 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2022-11-23 13:50:55,030 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-11-23 13:50:55,031 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-11-23 13:50:55,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2022-11-23 13:50:55,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2022-11-23 13:50:55,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-23 13:50:55,032 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-23 13:50:55,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2022-11-23 13:50:55,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2022-11-23 13:50:55,032 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2022-11-23 13:50:55,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2022-11-23 13:50:55,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2022-11-23 13:50:55,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2022-11-23 13:50:55,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2022-11-23 13:50:55,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2022-11-23 13:50:55,033 INFO L130 BoogieDeclarations]: Found specification of procedure pnic_timer [2022-11-23 13:50:55,034 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic_timer [2022-11-23 13:50:55,034 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-11-23 13:50:55,034 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-11-23 13:50:55,034 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-11-23 13:50:55,035 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-11-23 13:50:55,036 INFO L130 BoogieDeclarations]: Found specification of procedure poll_tulip [2022-11-23 13:50:55,039 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_tulip [2022-11-23 13:50:55,039 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_mdio_write [2022-11-23 13:50:55,040 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_mdio_write [2022-11-23 13:50:55,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 13:50:55,041 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2022-11-23 13:50:55,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2022-11-23 13:50:55,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2022-11-23 13:50:55,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2022-11-23 13:50:55,043 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2022-11-23 13:50:55,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2022-11-23 13:50:55,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2022-11-23 13:50:55,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2022-11-23 13:50:55,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 13:50:55,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2022-11-23 13:50:55,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2022-11-23 13:50:55,050 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-11-23 13:50:55,050 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-11-23 13:50:55,050 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 13:50:55,050 INFO L130 BoogieDeclarations]: Found specification of procedure t21142_start_nway [2022-11-23 13:50:55,050 INFO L138 BoogieDeclarations]: Found implementation of procedure t21142_start_nway [2022-11-23 13:50:55,050 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2022-11-23 13:50:55,050 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2022-11-23 13:50:55,051 INFO L130 BoogieDeclarations]: Found specification of procedure ioread16 [2022-11-23 13:50:55,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread16 [2022-11-23 13:50:55,051 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 13:50:55,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-23 13:50:55,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2022-11-23 13:50:55,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2022-11-23 13:50:55,051 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2022-11-23 13:50:55,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2022-11-23 13:50:55,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_tulip_private [2022-11-23 13:50:55,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_tulip_private [2022-11-23 13:50:55,052 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2022-11-23 13:50:55,052 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2022-11-23 13:50:55,052 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2022-11-23 13:50:55,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2022-11-23 13:50:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-11-23 13:50:55,053 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-11-23 13:50:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2022-11-23 13:50:55,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2022-11-23 13:50:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_mii_lock_of_tulip_private [2022-11-23 13:50:55,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_mii_lock_of_tulip_private [2022-11-23 13:50:55,053 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-23 13:50:55,054 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-23 13:50:55,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_tulip_private [2022-11-23 13:50:55,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_tulip_private [2022-11-23 13:50:55,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 13:50:55,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 13:50:55,054 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_close [2022-11-23 13:50:55,054 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_close [2022-11-23 13:50:55,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-23 13:50:55,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-23 13:50:55,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-23 13:50:55,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-23 13:50:55,055 INFO L130 BoogieDeclarations]: Found specification of procedure napi_schedule [2022-11-23 13:50:55,056 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_schedule [2022-11-23 13:50:55,056 INFO L130 BoogieDeclarations]: Found specification of procedure request_irq [2022-11-23 13:50:55,056 INFO L138 BoogieDeclarations]: Found implementation of procedure request_irq [2022-11-23 13:50:55,056 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_set_power_state [2022-11-23 13:50:55,056 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_set_power_state [2022-11-23 13:50:55,056 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2022-11-23 13:50:55,056 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2022-11-23 13:50:55,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_tulip_cleanup_19_2 [2022-11-23 13:50:55,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_tulip_cleanup_19_2 [2022-11-23 13:50:55,057 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2022-11-23 13:50:55,057 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2022-11-23 13:50:55,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2022-11-23 13:50:55,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2022-11-23 13:50:55,057 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_tx_timeout [2022-11-23 13:50:55,058 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_tx_timeout [2022-11-23 13:50:55,058 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_check_duplex [2022-11-23 13:50:55,058 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_check_duplex [2022-11-23 13:50:55,058 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-11-23 13:50:55,058 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-11-23 13:50:55,058 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2022-11-23 13:50:55,058 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2022-11-23 13:50:55,058 INFO L130 BoogieDeclarations]: Found specification of procedure put_unaligned_le16 [2022-11-23 13:50:55,059 INFO L138 BoogieDeclarations]: Found implementation of procedure put_unaligned_le16 [2022-11-23 13:50:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-23 13:50:55,059 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-23 13:50:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2022-11-23 13:50:55,059 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2022-11-23 13:50:55,059 INFO L130 BoogieDeclarations]: Found specification of procedure comet_timer [2022-11-23 13:50:55,059 INFO L138 BoogieDeclarations]: Found implementation of procedure comet_timer [2022-11-23 13:50:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure get_unaligned_le16 [2022-11-23 13:50:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure get_unaligned_le16 [2022-11-23 13:50:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-23 13:50:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-23 13:50:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 13:50:55,060 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_mdio_read [2022-11-23 13:50:55,060 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_mdio_read [2022-11-23 13:50:55,061 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-11-23 13:50:55,061 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-11-23 13:50:55,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 13:50:55,061 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2022-11-23 13:50:55,061 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2022-11-23 13:50:55,061 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-11-23 13:50:55,061 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-11-23 13:50:55,061 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2022-11-23 13:50:55,062 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2022-11-23 13:50:55,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-23 13:50:55,062 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_down [2022-11-23 13:50:55,062 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_down [2022-11-23 13:50:55,062 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_stop_rxtx___2 [2022-11-23 13:50:55,062 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_stop_rxtx___2 [2022-11-23 13:50:55,062 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_remove_one [2022-11-23 13:50:55,063 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_remove_one [2022-11-23 13:50:55,063 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-11-23 13:50:55,063 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-11-23 13:50:55,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_request_irq [2022-11-23 13:50:55,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_request_irq [2022-11-23 13:50:55,063 INFO L130 BoogieDeclarations]: Found specification of procedure mxic_timer [2022-11-23 13:50:55,063 INFO L138 BoogieDeclarations]: Found implementation of procedure mxic_timer [2022-11-23 13:50:55,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2022-11-23 13:50:55,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2022-11-23 13:50:55,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2022-11-23 13:50:55,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2022-11-23 13:50:55,064 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_free_ring [2022-11-23 13:50:55,064 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_free_ring [2022-11-23 13:50:55,064 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2022-11-23 13:50:55,064 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2022-11-23 13:50:55,065 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_refill_rx [2022-11-23 13:50:55,065 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_refill_rx [2022-11-23 13:50:55,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_84___0 [2022-11-23 13:50:55,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_84___0 [2022-11-23 13:50:55,065 INFO L130 BoogieDeclarations]: Found specification of procedure pnic2_timer [2022-11-23 13:50:55,066 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic2_timer [2022-11-23 13:50:55,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_84 [2022-11-23 13:50:55,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_84 [2022-11-23 13:50:55,070 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2022-11-23 13:50:55,070 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2022-11-23 13:50:55,070 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-11-23 13:50:55,071 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-11-23 13:50:55,071 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2022-11-23 13:50:55,071 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2022-11-23 13:50:55,071 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-11-23 13:50:55,072 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-11-23 13:50:55,073 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-23 13:50:55,073 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-23 13:50:55,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 13:50:55,073 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_restart_rxtx [2022-11-23 13:50:55,074 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_restart_rxtx [2022-11-23 13:50:55,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-23 13:50:55,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-23 13:50:55,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_85 [2022-11-23 13:50:55,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_85 [2022-11-23 13:50:55,074 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2022-11-23 13:50:55,074 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2022-11-23 13:50:55,074 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_start_rxtx [2022-11-23 13:50:55,075 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_start_rxtx [2022-11-23 13:50:55,075 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-11-23 13:50:55,075 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-11-23 13:50:55,075 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_open [2022-11-23 13:50:55,075 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_open [2022-11-23 13:50:55,075 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-11-23 13:50:55,075 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-11-23 13:50:55,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2022-11-23 13:50:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2022-11-23 13:50:55,076 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2022-11-23 13:50:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2022-11-23 13:50:55,076 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2022-11-23 13:50:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2022-11-23 13:50:55,076 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2022-11-23 13:50:55,076 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2022-11-23 13:50:55,076 INFO L130 BoogieDeclarations]: Found specification of procedure pnic2_start_nway [2022-11-23 13:50:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure pnic2_start_nway [2022-11-23 13:50:55,077 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-11-23 13:50:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-11-23 13:50:55,077 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_read_eeprom [2022-11-23 13:50:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_read_eeprom [2022-11-23 13:50:55,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 13:50:55,077 INFO L130 BoogieDeclarations]: Found specification of procedure tulip_timer [2022-11-23 13:50:55,077 INFO L138 BoogieDeclarations]: Found implementation of procedure tulip_timer [2022-11-23 13:50:55,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2022-11-23 13:50:55,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2022-11-23 13:50:56,443 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 13:50:56,446 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 13:50:57,752 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-23 13:51:07,932 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2022-11-23 13:51:08,153 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 13:51:13,636 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 13:51:13,636 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-23 13:51:13,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:51:13 BoogieIcfgContainer [2022-11-23 13:51:13,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 13:51:13,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 13:51:13,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 13:51:13,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 13:51:13,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:50:47" (1/3) ... [2022-11-23 13:51:13,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b56326d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:51:13, skipping insertion in model container [2022-11-23 13:51:13,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:50:53" (2/3) ... [2022-11-23 13:51:13,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b56326d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:51:13, skipping insertion in model container [2022-11-23 13:51:13,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:51:13" (3/3) ... [2022-11-23 13:51:13,658 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-dec-tulip-tulip.cil.i [2022-11-23 13:51:13,679 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 13:51:13,679 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 13:51:13,789 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 13:51:13,801 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;@2507d421, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 13:51:13,802 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 13:51:13,814 INFO L276 IsEmpty]: Start isEmpty. Operand has 2630 states, 1542 states have (on average 1.3514915693904022) internal successors, (2084), 1642 states have internal predecessors, (2084), 955 states have call successors, (955), 134 states have call predecessors, (955), 133 states have return successors, (948), 902 states have call predecessors, (948), 948 states have call successors, (948) [2022-11-23 13:51:13,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2022-11-23 13:51:13,849 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:51:13,850 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 13, 13, 13, 13, 13, 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] [2022-11-23 13:51:13,851 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:51:13,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:51:13,856 INFO L85 PathProgramCache]: Analyzing trace with hash -332575467, now seen corresponding path program 1 times [2022-11-23 13:51:13,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:51:13,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466028342] [2022-11-23 13:51:13,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:51:13,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:51:14,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:51:15,415 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 652 trivial. 0 not checked. [2022-11-23 13:51:15,416 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:51:15,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466028342] [2022-11-23 13:51:15,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466028342] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:51:15,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:51:15,422 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:51:15,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966270973] [2022-11-23 13:51:15,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:51:15,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:51:15,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:51:15,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:51:15,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:51:15,478 INFO L87 Difference]: Start difference. First operand has 2630 states, 1542 states have (on average 1.3514915693904022) internal successors, (2084), 1642 states have internal predecessors, (2084), 955 states have call successors, (955), 134 states have call predecessors, (955), 133 states have return successors, (948), 902 states have call predecessors, (948), 948 states have call successors, (948) Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-23 13:51:22,970 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:24,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:51:24,123 INFO L93 Difference]: Finished difference Result 6978 states and 10633 transitions. [2022-11-23 13:51:24,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:51:24,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 170 [2022-11-23 13:51:24,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:51:24,190 INFO L225 Difference]: With dead ends: 6978 [2022-11-23 13:51:24,190 INFO L226 Difference]: Without dead ends: 4315 [2022-11-23 13:51:24,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:51:24,218 INFO L413 NwaCegarLoop]: 4141 mSDtfsCounter, 2650 mSDsluCounter, 3484 mSDsCounter, 0 mSdLazyCounter, 940 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2650 SdHoareTripleChecker+Valid, 7625 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 940 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:51:24,219 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2650 Valid, 7625 Invalid, 958 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 940 Invalid, 1 Unknown, 0 Unchecked, 8.1s Time] [2022-11-23 13:51:24,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4315 states. [2022-11-23 13:51:24,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4315 to 4312. [2022-11-23 13:51:24,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4312 states, 2570 states have (on average 1.34863813229572) internal successors, (3466), 2726 states have internal predecessors, (3466), 1520 states have call successors, (1520), 221 states have call predecessors, (1520), 221 states have return successors, (1520), 1447 states have call predecessors, (1520), 1520 states have call successors, (1520) [2022-11-23 13:51:24,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4312 states to 4312 states and 6506 transitions. [2022-11-23 13:51:24,783 INFO L78 Accepts]: Start accepts. Automaton has 4312 states and 6506 transitions. Word has length 170 [2022-11-23 13:51:24,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:51:24,788 INFO L495 AbstractCegarLoop]: Abstraction has 4312 states and 6506 transitions. [2022-11-23 13:51:24,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2022-11-23 13:51:24,789 INFO L276 IsEmpty]: Start isEmpty. Operand 4312 states and 6506 transitions. [2022-11-23 13:51:24,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2022-11-23 13:51:24,827 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:51:24,827 INFO L195 NwaCegarLoop]: trace histogram [15, 13, 13, 13, 13, 13, 13, 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] [2022-11-23 13:51:24,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 13:51:24,828 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:51:24,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:51:24,829 INFO L85 PathProgramCache]: Analyzing trace with hash 209464767, now seen corresponding path program 1 times [2022-11-23 13:51:24,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:51:24,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482732950] [2022-11-23 13:51:24,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:51:24,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:51:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:51:25,639 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 682 trivial. 0 not checked. [2022-11-23 13:51:25,642 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:51:25,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482732950] [2022-11-23 13:51:25,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482732950] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:51:25,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:51:25,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:51:25,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411604494] [2022-11-23 13:51:25,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:51:25,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:51:25,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:51:25,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:51:25,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:51:25,651 INFO L87 Difference]: Start difference. First operand 4312 states and 6506 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-23 13:51:33,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:34,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:51:34,126 INFO L93 Difference]: Finished difference Result 12562 states and 18989 transitions. [2022-11-23 13:51:34,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:51:34,127 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 216 [2022-11-23 13:51:34,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:51:34,224 INFO L225 Difference]: With dead ends: 12562 [2022-11-23 13:51:34,224 INFO L226 Difference]: Without dead ends: 8277 [2022-11-23 13:51:34,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:51:34,263 INFO L413 NwaCegarLoop]: 4298 mSDtfsCounter, 3572 mSDsluCounter, 3355 mSDsCounter, 0 mSdLazyCounter, 876 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3572 SdHoareTripleChecker+Valid, 7653 SdHoareTripleChecker+Invalid, 880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 876 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-11-23 13:51:34,263 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3572 Valid, 7653 Invalid, 880 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 876 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2022-11-23 13:51:34,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8277 states. [2022-11-23 13:51:35,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8277 to 8260. [2022-11-23 13:51:35,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8260 states, 4927 states have (on average 1.3482849604221636) internal successors, (6643), 5225 states have internal predecessors, (6643), 2901 states have call successors, (2901), 435 states have call predecessors, (2901), 431 states have return successors, (2953), 2753 states have call predecessors, (2953), 2901 states have call successors, (2953) [2022-11-23 13:51:35,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8260 states to 8260 states and 12497 transitions. [2022-11-23 13:51:35,194 INFO L78 Accepts]: Start accepts. Automaton has 8260 states and 12497 transitions. Word has length 216 [2022-11-23 13:51:35,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:51:35,197 INFO L495 AbstractCegarLoop]: Abstraction has 8260 states and 12497 transitions. [2022-11-23 13:51:35,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-23 13:51:35,198 INFO L276 IsEmpty]: Start isEmpty. Operand 8260 states and 12497 transitions. [2022-11-23 13:51:35,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-11-23 13:51:35,220 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:51:35,220 INFO L195 NwaCegarLoop]: trace histogram [15, 13, 13, 13, 13, 13, 13, 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] [2022-11-23 13:51:35,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 13:51:35,221 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:51:35,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:51:35,221 INFO L85 PathProgramCache]: Analyzing trace with hash 79663805, now seen corresponding path program 1 times [2022-11-23 13:51:35,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:51:35,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141891721] [2022-11-23 13:51:35,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:51:35,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:51:35,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:51:35,850 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2022-11-23 13:51:35,850 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:51:35,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141891721] [2022-11-23 13:51:35,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141891721] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:51:35,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:51:35,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:51:35,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985379864] [2022-11-23 13:51:35,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:51:35,853 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:51:35,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:51:35,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:51:35,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:51:35,854 INFO L87 Difference]: Start difference. First operand 8260 states and 12497 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-23 13:51:43,136 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:43,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:51:43,925 INFO L93 Difference]: Finished difference Result 24306 states and 36759 transitions. [2022-11-23 13:51:43,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:51:43,926 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 215 [2022-11-23 13:51:43,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:51:44,233 INFO L225 Difference]: With dead ends: 24306 [2022-11-23 13:51:44,234 INFO L226 Difference]: Without dead ends: 16073 [2022-11-23 13:51:44,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:51:44,289 INFO L413 NwaCegarLoop]: 4480 mSDtfsCounter, 3563 mSDsluCounter, 3448 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3563 SdHoareTripleChecker+Valid, 7928 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2022-11-23 13:51:44,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3563 Valid, 7928 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 932 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2022-11-23 13:51:44,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16073 states. [2022-11-23 13:51:45,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16073 to 16052. [2022-11-23 13:51:45,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16052 states, 9566 states have (on average 1.3466443654610076) internal successors, (12882), 10155 states have internal predecessors, (12882), 5637 states have call successors, (5637), 856 states have call predecessors, (5637), 848 states have return successors, (5735), 5340 states have call predecessors, (5735), 5637 states have call successors, (5735) [2022-11-23 13:51:45,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16052 states to 16052 states and 24254 transitions. [2022-11-23 13:51:45,668 INFO L78 Accepts]: Start accepts. Automaton has 16052 states and 24254 transitions. Word has length 215 [2022-11-23 13:51:45,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:51:45,670 INFO L495 AbstractCegarLoop]: Abstraction has 16052 states and 24254 transitions. [2022-11-23 13:51:45,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 3 states have call successors, (30), 2 states have call predecessors, (30), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-23 13:51:45,670 INFO L276 IsEmpty]: Start isEmpty. Operand 16052 states and 24254 transitions. [2022-11-23 13:51:45,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2022-11-23 13:51:45,708 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:51:45,709 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 4, 4, 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] [2022-11-23 13:51:45,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 13:51:45,709 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:51:45,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:51:45,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1540581844, now seen corresponding path program 1 times [2022-11-23 13:51:45,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:51:45,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172769190] [2022-11-23 13:51:45,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:51:45,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:51:45,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:51:46,365 INFO L134 CoverageAnalysis]: Checked inductivity of 763 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2022-11-23 13:51:46,365 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:51:46,366 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172769190] [2022-11-23 13:51:46,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172769190] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:51:46,366 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:51:46,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:51:46,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917128148] [2022-11-23 13:51:46,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:51:46,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:51:46,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:51:46,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:51:46,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:51:46,368 INFO L87 Difference]: Start difference. First operand 16052 states and 24254 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-23 13:51:54,031 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:51:54,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:51:54,793 INFO L93 Difference]: Finished difference Result 38770 states and 58622 transitions. [2022-11-23 13:51:54,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:51:54,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 217 [2022-11-23 13:51:54,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:51:54,954 INFO L225 Difference]: With dead ends: 38770 [2022-11-23 13:51:54,954 INFO L226 Difference]: Without dead ends: 22745 [2022-11-23 13:51:55,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:51:55,043 INFO L413 NwaCegarLoop]: 5769 mSDtfsCounter, 2597 mSDsluCounter, 3422 mSDsCounter, 0 mSdLazyCounter, 1214 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2597 SdHoareTripleChecker+Valid, 9191 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1214 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2022-11-23 13:51:55,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2597 Valid, 9191 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 1214 Invalid, 1 Unknown, 0 Unchecked, 7.5s Time] [2022-11-23 13:51:55,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22745 states. [2022-11-23 13:51:57,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22745 to 22739. [2022-11-23 13:51:57,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22739 states, 13598 states have (on average 1.347698190910428) internal successors, (18326), 14415 states have internal predecessors, (18326), 7939 states have call successors, (7939), 1211 states have call predecessors, (7939), 1201 states have return successors, (8078), 7529 states have call predecessors, (8078), 7939 states have call successors, (8078) [2022-11-23 13:51:57,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22739 states to 22739 states and 34343 transitions. [2022-11-23 13:51:57,237 INFO L78 Accepts]: Start accepts. Automaton has 22739 states and 34343 transitions. Word has length 217 [2022-11-23 13:51:57,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:51:57,238 INFO L495 AbstractCegarLoop]: Abstraction has 22739 states and 34343 transitions. [2022-11-23 13:51:57,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2022-11-23 13:51:57,238 INFO L276 IsEmpty]: Start isEmpty. Operand 22739 states and 34343 transitions. [2022-11-23 13:51:57,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-11-23 13:51:57,273 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:51:57,273 INFO L195 NwaCegarLoop]: trace histogram [16, 13, 13, 13, 13, 13, 13, 3, 3, 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] [2022-11-23 13:51:57,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 13:51:57,273 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:51:57,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:51:57,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1033454250, now seen corresponding path program 1 times [2022-11-23 13:51:57,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:51:57,274 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586488611] [2022-11-23 13:51:57,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:51:57,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:51:57,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:51:57,789 INFO L134 CoverageAnalysis]: Checked inductivity of 724 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 721 trivial. 0 not checked. [2022-11-23 13:51:57,790 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:51:57,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586488611] [2022-11-23 13:51:57,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586488611] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:51:57,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:51:57,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:51:57,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583164591] [2022-11-23 13:51:57,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:51:57,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:51:57,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:51:57,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:51:57,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:51:57,792 INFO L87 Difference]: Start difference. First operand 22739 states and 34343 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-23 13:52:04,675 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:52:05,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:52:05,285 INFO L93 Difference]: Finished difference Result 48722 states and 73529 transitions. [2022-11-23 13:52:05,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:52:05,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 230 [2022-11-23 13:52:05,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:52:05,447 INFO L225 Difference]: With dead ends: 48722 [2022-11-23 13:52:05,447 INFO L226 Difference]: Without dead ends: 26010 [2022-11-23 13:52:05,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:52:05,545 INFO L413 NwaCegarLoop]: 4062 mSDtfsCounter, 2551 mSDsluCounter, 3434 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2551 SdHoareTripleChecker+Valid, 7496 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2022-11-23 13:52:05,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2551 Valid, 7496 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 906 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2022-11-23 13:52:05,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26010 states. [2022-11-23 13:52:07,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26010 to 26008. [2022-11-23 13:52:07,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26008 states, 15576 states have (on average 1.3471366204417052) internal successors, (20983), 16502 states have internal predecessors, (20983), 9038 states have call successors, (9038), 1404 states have call predecessors, (9038), 1393 states have return successors, (9196), 8576 states have call predecessors, (9196), 9038 states have call successors, (9196) [2022-11-23 13:52:07,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26008 states to 26008 states and 39217 transitions. [2022-11-23 13:52:07,832 INFO L78 Accepts]: Start accepts. Automaton has 26008 states and 39217 transitions. Word has length 230 [2022-11-23 13:52:07,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:52:07,833 INFO L495 AbstractCegarLoop]: Abstraction has 26008 states and 39217 transitions. [2022-11-23 13:52:07,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2022-11-23 13:52:07,834 INFO L276 IsEmpty]: Start isEmpty. Operand 26008 states and 39217 transitions. [2022-11-23 13:52:07,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2022-11-23 13:52:07,921 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:52:07,921 INFO L195 NwaCegarLoop]: trace histogram [19, 13, 13, 13, 13, 13, 13, 6, 6, 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] [2022-11-23 13:52:07,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 13:52:07,921 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:52:07,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:52:07,922 INFO L85 PathProgramCache]: Analyzing trace with hash 873450044, now seen corresponding path program 1 times [2022-11-23 13:52:07,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:52:07,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232104588] [2022-11-23 13:52:07,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:52:07,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:52:08,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:52:08,439 INFO L134 CoverageAnalysis]: Checked inductivity of 873 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 866 trivial. 0 not checked. [2022-11-23 13:52:08,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:52:08,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232104588] [2022-11-23 13:52:08,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232104588] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:52:08,440 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:52:08,440 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:52:08,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247922757] [2022-11-23 13:52:08,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:52:08,441 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:52:08,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:52:08,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:52:08,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:52:08,442 INFO L87 Difference]: Start difference. First operand 26008 states and 39217 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-23 13:52:16,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:52:17,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:52:17,724 INFO L93 Difference]: Finished difference Result 59906 states and 90326 transitions. [2022-11-23 13:52:17,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:52:17,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 272 [2022-11-23 13:52:17,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:52:17,958 INFO L225 Difference]: With dead ends: 59906 [2022-11-23 13:52:17,958 INFO L226 Difference]: Without dead ends: 37118 [2022-11-23 13:52:18,228 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:52:18,229 INFO L413 NwaCegarLoop]: 6631 mSDtfsCounter, 3563 mSDsluCounter, 3446 mSDsCounter, 0 mSdLazyCounter, 1313 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3563 SdHoareTripleChecker+Valid, 10077 SdHoareTripleChecker+Invalid, 1318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1313 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-11-23 13:52:18,230 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3563 Valid, 10077 Invalid, 1318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1313 Invalid, 1 Unknown, 0 Unchecked, 7.9s Time] [2022-11-23 13:52:18,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37118 states. [2022-11-23 13:52:20,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37118 to 37093. [2022-11-23 13:52:20,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37093 states, 22194 states have (on average 1.346760385689826) internal successors, (29890), 23526 states have internal predecessors, (29890), 12901 states have call successors, (12901), 2013 states have call predecessors, (12901), 1997 states have return successors, (13124), 12232 states have call predecessors, (13124), 12901 states have call successors, (13124) [2022-11-23 13:52:21,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37093 states to 37093 states and 55915 transitions. [2022-11-23 13:52:21,155 INFO L78 Accepts]: Start accepts. Automaton has 37093 states and 55915 transitions. Word has length 272 [2022-11-23 13:52:21,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:52:21,158 INFO L495 AbstractCegarLoop]: Abstraction has 37093 states and 55915 transitions. [2022-11-23 13:52:21,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 3 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2022-11-23 13:52:21,159 INFO L276 IsEmpty]: Start isEmpty. Operand 37093 states and 55915 transitions. [2022-11-23 13:52:21,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2022-11-23 13:52:21,247 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:52:21,248 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 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] [2022-11-23 13:52:21,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 13:52:21,248 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:52:21,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:52:21,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1555931917, now seen corresponding path program 1 times [2022-11-23 13:52:21,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:52:21,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309158134] [2022-11-23 13:52:21,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:52:21,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:52:21,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:52:22,179 INFO L134 CoverageAnalysis]: Checked inductivity of 789 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-11-23 13:52:22,180 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:52:22,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309158134] [2022-11-23 13:52:22,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309158134] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:52:22,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:52:22,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:52:22,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247991233] [2022-11-23 13:52:22,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:52:22,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:52:22,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:52:22,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:52:22,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:52:22,184 INFO L87 Difference]: Start difference. First operand 37093 states and 55915 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-23 13:52:32,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:52:33,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:52:33,217 INFO L93 Difference]: Finished difference Result 107468 states and 161953 transitions. [2022-11-23 13:52:33,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:52:33,218 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 275 [2022-11-23 13:52:33,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:52:33,662 INFO L225 Difference]: With dead ends: 107468 [2022-11-23 13:52:33,662 INFO L226 Difference]: Without dead ends: 70402 [2022-11-23 13:52:33,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:52:33,795 INFO L413 NwaCegarLoop]: 4353 mSDtfsCounter, 3567 mSDsluCounter, 3448 mSDsCounter, 0 mSdLazyCounter, 912 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3567 SdHoareTripleChecker+Valid, 7801 SdHoareTripleChecker+Invalid, 920 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 912 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:52:33,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3567 Valid, 7801 Invalid, 920 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 912 Invalid, 1 Unknown, 0 Unchecked, 8.0s Time] [2022-11-23 13:52:33,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70402 states. [2022-11-23 13:52:38,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70402 to 70377. [2022-11-23 13:52:38,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70377 states, 42089 states have (on average 1.3448882130722992) internal successors, (56605), 44645 states have internal predecessors, (56605), 24472 states have call successors, (24472), 3846 states have call predecessors, (24472), 3815 states have return successors, (24869), 23179 states have call predecessors, (24869), 24472 states have call successors, (24869) [2022-11-23 13:52:39,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70377 states to 70377 states and 105946 transitions. [2022-11-23 13:52:39,181 INFO L78 Accepts]: Start accepts. Automaton has 70377 states and 105946 transitions. Word has length 275 [2022-11-23 13:52:39,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:52:39,182 INFO L495 AbstractCegarLoop]: Abstraction has 70377 states and 105946 transitions. [2022-11-23 13:52:39,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-23 13:52:39,183 INFO L276 IsEmpty]: Start isEmpty. Operand 70377 states and 105946 transitions. [2022-11-23 13:52:39,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2022-11-23 13:52:39,269 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:52:39,269 INFO L195 NwaCegarLoop]: trace histogram [17, 13, 13, 13, 13, 13, 13, 4, 4, 4, 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] [2022-11-23 13:52:39,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 13:52:39,270 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:52:39,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:52:39,270 INFO L85 PathProgramCache]: Analyzing trace with hash -1471782069, now seen corresponding path program 1 times [2022-11-23 13:52:39,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:52:39,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589437233] [2022-11-23 13:52:39,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:52:39,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:52:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:52:40,207 INFO L134 CoverageAnalysis]: Checked inductivity of 790 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2022-11-23 13:52:40,207 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:52:40,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589437233] [2022-11-23 13:52:40,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589437233] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:52:40,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:52:40,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:52:40,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987223249] [2022-11-23 13:52:40,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:52:40,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:52:40,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:52:40,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:52:40,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:52:40,211 INFO L87 Difference]: Start difference. First operand 70377 states and 105946 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2022-11-23 13:52:52,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-23 13:52:53,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:52:53,090 INFO L93 Difference]: Finished difference Result 207008 states and 311568 transitions. [2022-11-23 13:52:53,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:52:53,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (39), 2 states have call predecessors, (39), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 276 [2022-11-23 13:52:53,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:52:54,127 INFO L225 Difference]: With dead ends: 207008 [2022-11-23 13:52:54,127 INFO L226 Difference]: Without dead ends: 136658 [2022-11-23 13:52:54,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:52:54,418 INFO L413 NwaCegarLoop]: 4366 mSDtfsCounter, 3566 mSDsluCounter, 3448 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3566 SdHoareTripleChecker+Valid, 7814 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:52:54,418 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3566 Valid, 7814 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 911 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2022-11-23 13:52:54,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136658 states.