./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51c2ed4-99b2-4af3-aadb-6bef6f103e7f/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51c2ed4-99b2-4af3-aadb-6bef6f103e7f/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51c2ed4-99b2-4af3-aadb-6bef6f103e7f/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51c2ed4-99b2-4af3-aadb-6bef6f103e7f/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51c2ed4-99b2-4af3-aadb-6bef6f103e7f/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51c2ed4-99b2-4af3-aadb-6bef6f103e7f/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2c6aa6e54aa03d80dc4005d195dc80cde5e772aed59b94df03248a4abb3fc0ec --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 02:14:53,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 02:14:53,328 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 02:14:53,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 02:14:53,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 02:14:53,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 02:14:53,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 02:14:53,386 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 02:14:53,390 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 02:14:53,396 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 02:14:53,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 02:14:53,403 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 02:14:53,403 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 02:14:53,406 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 02:14:53,407 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 02:14:53,410 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 02:14:53,411 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 02:14:53,412 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 02:14:53,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 02:14:53,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 02:14:53,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 02:14:53,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 02:14:53,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 02:14:53,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 02:14:53,437 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 02:14:53,437 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 02:14:53,437 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 02:14:53,439 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 02:14:53,440 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 02:14:53,441 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 02:14:53,441 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 02:14:53,443 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 02:14:53,445 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 02:14:53,446 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 02:14:53,447 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 02:14:53,448 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 02:14:53,448 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 02:14:53,449 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 02:14:53,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 02:14:53,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 02:14:53,450 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 02:14:53,454 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51c2ed4-99b2-4af3-aadb-6bef6f103e7f/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-03 02:14:53,490 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 02:14:53,490 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 02:14:53,491 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 02:14:53,491 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 02:14:53,492 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 02:14:53,493 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 02:14:53,493 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 02:14:53,493 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 02:14:53,493 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 02:14:53,494 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 02:14:53,495 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 02:14:53,495 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 02:14:53,495 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 02:14:53,496 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 02:14:53,496 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 02:14:53,496 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 02:14:53,496 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 02:14:53,497 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 02:14:53,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 02:14:53,498 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 02:14:53,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 02:14:53,498 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 02:14:53,498 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 02:14:53,499 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 02:14:53,499 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 02:14:53,499 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 02:14:53,499 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 02:14:53,500 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 02:14:53,500 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 02:14:53,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:14:53,500 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 02:14:53,501 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 02:14:53,501 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 02:14:53,501 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 02:14:53,502 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 02:14:53,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 02:14:53,502 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 02:14:53,502 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 02:14:53,503 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_c51c2ed4-99b2-4af3-aadb-6bef6f103e7f/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51c2ed4-99b2-4af3-aadb-6bef6f103e7f/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c6aa6e54aa03d80dc4005d195dc80cde5e772aed59b94df03248a4abb3fc0ec [2022-11-03 02:14:53,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 02:14:53,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 02:14:53,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 02:14:53,866 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 02:14:53,866 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 02:14:53,868 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51c2ed4-99b2-4af3-aadb-6bef6f103e7f/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2022-11-03 02:14:53,970 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51c2ed4-99b2-4af3-aadb-6bef6f103e7f/bin/utaipan-7li7fVZpFI/data/a0751d110/f2fc3d07c6124e87b80142bf8aa60b21/FLAG1c9c03335 [2022-11-03 02:14:54,799 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 02:14:54,802 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51c2ed4-99b2-4af3-aadb-6bef6f103e7f/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2022-11-03 02:14:54,855 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51c2ed4-99b2-4af3-aadb-6bef6f103e7f/bin/utaipan-7li7fVZpFI/data/a0751d110/f2fc3d07c6124e87b80142bf8aa60b21/FLAG1c9c03335 [2022-11-03 02:14:55,335 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51c2ed4-99b2-4af3-aadb-6bef6f103e7f/bin/utaipan-7li7fVZpFI/data/a0751d110/f2fc3d07c6124e87b80142bf8aa60b21 [2022-11-03 02:14:55,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 02:14:55,340 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 02:14:55,344 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 02:14:55,344 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 02:14:55,348 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 02:14:55,349 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:14:55" (1/1) ... [2022-11-03 02:14:55,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d4a7823 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:55, skipping insertion in model container [2022-11-03 02:14:55,351 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 02:14:55" (1/1) ... [2022-11-03 02:14:55,359 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 02:14:55,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 02:14:57,353 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51c2ed4-99b2-4af3-aadb-6bef6f103e7f/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i[284671,284684] [2022-11-03 02:14:57,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:14:57,479 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 02:14:57,895 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51c2ed4-99b2-4af3-aadb-6bef6f103e7f/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i[284671,284684] [2022-11-03 02:14:57,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 02:14:57,994 INFO L208 MainTranslator]: Completed translation [2022-11-03 02:14:57,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:57 WrapperNode [2022-11-03 02:14:57,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 02:14:57,995 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 02:14:57,996 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 02:14:57,996 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 02:14:58,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:57" (1/1) ... [2022-11-03 02:14:58,108 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:57" (1/1) ... [2022-11-03 02:14:58,259 INFO L138 Inliner]: procedures = 177, calls = 1597, calls flagged for inlining = 87, calls inlined = 82, statements flattened = 3739 [2022-11-03 02:14:58,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 02:14:58,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 02:14:58,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 02:14:58,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 02:14:58,272 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:57" (1/1) ... [2022-11-03 02:14:58,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:57" (1/1) ... [2022-11-03 02:14:58,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:57" (1/1) ... [2022-11-03 02:14:58,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:57" (1/1) ... [2022-11-03 02:14:58,412 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:57" (1/1) ... [2022-11-03 02:14:58,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:57" (1/1) ... [2022-11-03 02:14:58,493 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:57" (1/1) ... [2022-11-03 02:14:58,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:57" (1/1) ... [2022-11-03 02:14:58,549 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 02:14:58,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 02:14:58,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 02:14:58,552 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 02:14:58,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:57" (1/1) ... [2022-11-03 02:14:58,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 02:14:58,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51c2ed4-99b2-4af3-aadb-6bef6f103e7f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:14:58,603 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51c2ed4-99b2-4af3-aadb-6bef6f103e7f/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 02:14:58,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51c2ed4-99b2-4af3-aadb-6bef6f103e7f/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 02:14:58,660 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-03 02:14:58,660 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-03 02:14:58,660 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-03 02:14:58,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-03 02:14:58,661 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-03 02:14:58,661 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-03 02:14:58,661 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_free_iso_urbs [2022-11-03 02:14:58,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_free_iso_urbs [2022-11-03 02:14:58,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-03 02:14:58,662 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-03 02:14:58,662 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-03 02:14:58,662 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2022-11-03 02:14:58,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2022-11-03 02:14:58,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-03 02:14:58,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-03 02:14:58,663 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-11-03 02:14:58,663 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-11-03 02:14:58,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-03 02:14:58,664 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_dvb [2022-11-03 02:14:58,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_dvb [2022-11-03 02:14:58,664 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-11-03 02:14:58,664 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-11-03 02:14:58,665 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2022-11-03 02:14:58,665 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2022-11-03 02:14:58,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-03 02:14:58,665 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-03 02:14:58,666 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-03 02:14:58,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-03 02:14:58,666 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-03 02:14:58,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-03 02:14:58,667 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-03 02:14:58,667 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-03 02:14:58,667 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-11-03 02:14:58,667 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-11-03 02:14:58,668 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-03 02:14:58,668 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-03 02:14:58,668 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_iso_xfer [2022-11-03 02:14:58,668 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_iso_xfer [2022-11-03 02:14:58,669 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-03 02:14:58,669 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-03 02:14:58,669 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_send_command [2022-11-03 02:14:58,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_send_command [2022-11-03 02:14:58,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-03 02:14:58,670 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-03 02:14:58,670 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-03 02:14:58,670 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_setup_urbs [2022-11-03 02:14:58,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_setup_urbs [2022-11-03 02:14:58,671 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2022-11-03 02:14:58,672 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2022-11-03 02:14:58,673 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2022-11-03 02:14:58,673 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2022-11-03 02:14:58,674 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_pids [2022-11-03 02:14:58,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_pids [2022-11-03 02:14:58,675 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit [2022-11-03 02:14:58,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit [2022-11-03 02:14:58,675 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_usb [2022-11-03 02:14:58,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_usb [2022-11-03 02:14:58,675 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2022-11-03 02:14:58,676 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2022-11-03 02:14:58,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-03 02:14:58,676 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-03 02:14:58,676 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-03 02:14:58,676 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init [2022-11-03 02:14:58,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init [2022-11-03 02:14:58,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 02:14:58,677 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-03 02:14:58,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-03 02:14:58,677 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2022-11-03 02:14:58,677 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2022-11-03 02:14:58,678 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-03 02:14:58,678 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-03 02:14:58,678 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:14:58,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-03 02:14:58,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-03 02:14:58,679 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-03 02:14:58,680 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-03 02:14:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-03 02:14:58,680 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-03 02:14:58,680 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-11-03 02:14:58,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-11-03 02:14:58,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-03 02:14:58,681 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-03 02:14:58,682 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_probe [2022-11-03 02:14:58,682 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_probe [2022-11-03 02:14:58,682 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-03 02:14:58,682 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-03 02:14:58,683 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2022-11-03 02:14:58,683 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2022-11-03 02:14:58,684 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-03 02:14:58,684 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-03 02:14:58,684 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-03 02:14:58,685 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-03 02:14:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-03 02:14:58,686 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-03 02:14:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-03 02:14:58,686 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-03 02:14:58,686 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_dvb [2022-11-03 02:14:58,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_dvb [2022-11-03 02:14:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-03 02:14:58,687 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-03 02:14:58,687 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 02:14:58,687 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-03 02:14:58,688 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_disconnect [2022-11-03 02:14:58,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_disconnect [2022-11-03 02:14:58,689 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-03 02:14:58,689 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-03 02:14:58,689 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2022-11-03 02:14:58,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2022-11-03 02:14:58,689 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_model [2022-11-03 02:14:58,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_model [2022-11-03 02:14:58,731 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-11-03 02:14:58,731 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-11-03 02:14:58,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 02:14:58,731 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2022-11-03 02:14:58,731 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2022-11-03 02:14:58,731 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_iso_xfer [2022-11-03 02:14:58,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_iso_xfer [2022-11-03 02:14:58,731 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-11-03 02:14:58,731 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-11-03 02:14:58,731 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_filter_pes2ts_init [2022-11-03 02:14:58,732 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_filter_pes2ts_init [2022-11-03 02:14:58,732 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-03 02:14:58,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 02:14:58,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 02:14:59,581 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 02:14:59,584 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 02:14:59,827 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-03 02:15:00,018 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2022-11-03 02:15:00,018 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2022-11-03 02:15:00,448 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-03 02:15:01,760 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##203: assume false; [2022-11-03 02:15:01,760 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##204: assume !false; [2022-11-03 02:15:02,214 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2022-11-03 02:15:02,236 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-03 02:15:02,238 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-03 02:15:04,954 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##78: assume !false; [2022-11-03 02:15:04,955 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##77: assume false; [2022-11-03 02:15:04,955 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume !false; [2022-11-03 02:15:04,955 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume false; [2022-11-03 02:15:04,955 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8653: ttusb_dec_start_feed_#res#1 := 0; [2022-11-03 02:15:05,532 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-03 02:15:06,692 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2022-11-03 02:15:06,692 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2022-11-03 02:15:06,765 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 02:15:07,832 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 02:15:07,832 INFO L300 CfgBuilder]: Removed 38 assume(true) statements. [2022-11-03 02:15:07,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:15:07 BoogieIcfgContainer [2022-11-03 02:15:07,838 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 02:15:07,841 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 02:15:07,841 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 02:15:07,845 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 02:15:07,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 02:14:55" (1/3) ... [2022-11-03 02:15:07,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74adbedf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:15:07, skipping insertion in model container [2022-11-03 02:15:07,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 02:14:57" (2/3) ... [2022-11-03 02:15:07,846 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74adbedf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 02:15:07, skipping insertion in model container [2022-11-03 02:15:07,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 02:15:07" (3/3) ... [2022-11-03 02:15:07,851 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2022-11-03 02:15:07,876 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 02:15:07,876 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 02:15:07,991 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 02:15:08,000 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;@6982d7e7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 02:15:08,000 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 02:15:08,011 INFO L276 IsEmpty]: Start isEmpty. Operand has 733 states, 479 states have (on average 1.4029227557411275) internal successors, (672), 503 states have internal predecessors, (672), 199 states have call successors, (199), 54 states have call predecessors, (199), 53 states have return successors, (197), 191 states have call predecessors, (197), 197 states have call successors, (197) [2022-11-03 02:15:08,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-03 02:15:08,020 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:15:08,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:15:08,021 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:15:08,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:15:08,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1276604776, now seen corresponding path program 1 times [2022-11-03 02:15:08,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:15:08,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158752369] [2022-11-03 02:15:08,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:08,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:15:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:08,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:15:08,964 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:15:08,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158752369] [2022-11-03 02:15:08,965 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158752369] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:15:08,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:15:08,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:15:08,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271633882] [2022-11-03 02:15:08,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:15:08,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:15:08,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:15:09,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:15:09,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:15:09,025 INFO L87 Difference]: Start difference. First operand has 733 states, 479 states have (on average 1.4029227557411275) internal successors, (672), 503 states have internal predecessors, (672), 199 states have call successors, (199), 54 states have call predecessors, (199), 53 states have return successors, (197), 191 states have call predecessors, (197), 197 states have call successors, (197) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:15:11,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:14,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:15:14,639 INFO L93 Difference]: Finished difference Result 2126 states and 3201 transitions. [2022-11-03 02:15:14,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:15:14,643 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2022-11-03 02:15:14,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:15:14,672 INFO L225 Difference]: With dead ends: 2126 [2022-11-03 02:15:14,673 INFO L226 Difference]: Without dead ends: 1387 [2022-11-03 02:15:14,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:15:14,691 INFO L413 NwaCegarLoop]: 1082 mSDtfsCounter, 930 mSDsluCounter, 1017 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 68 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 930 SdHoareTripleChecker+Valid, 1964 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:15:14,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [930 Valid, 1964 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 286 Invalid, 1 Unknown, 0 Unchecked, 5.4s Time] [2022-11-03 02:15:14,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1387 states. [2022-11-03 02:15:14,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1387 to 1382. [2022-11-03 02:15:14,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1382 states, 907 states have (on average 1.308710033076075) internal successors, (1187), 937 states have internal predecessors, (1187), 372 states have call successors, (372), 104 states have call predecessors, (372), 102 states have return successors, (380), 353 states have call predecessors, (380), 368 states have call successors, (380) [2022-11-03 02:15:14,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1382 states to 1382 states and 1939 transitions. [2022-11-03 02:15:14,955 INFO L78 Accepts]: Start accepts. Automaton has 1382 states and 1939 transitions. Word has length 10 [2022-11-03 02:15:14,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:15:14,956 INFO L495 AbstractCegarLoop]: Abstraction has 1382 states and 1939 transitions. [2022-11-03 02:15:14,956 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:15:14,956 INFO L276 IsEmpty]: Start isEmpty. Operand 1382 states and 1939 transitions. [2022-11-03 02:15:14,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-03 02:15:14,957 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:15:14,958 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:15:14,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 02:15:14,958 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:15:14,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:15:14,959 INFO L85 PathProgramCache]: Analyzing trace with hash -920422069, now seen corresponding path program 1 times [2022-11-03 02:15:14,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:15:14,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134607211] [2022-11-03 02:15:14,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:14,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:15:15,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:15,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:15:15,352 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:15:15,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134607211] [2022-11-03 02:15:15,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134607211] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:15:15,354 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:15:15,354 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:15:15,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923344334] [2022-11-03 02:15:15,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:15:15,360 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:15:15,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:15:15,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:15:15,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:15:15,363 INFO L87 Difference]: Start difference. First operand 1382 states and 1939 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:15:17,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:19,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:21,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:15:21,820 INFO L93 Difference]: Finished difference Result 3432 states and 4868 transitions. [2022-11-03 02:15:21,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:15:21,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-03 02:15:21,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:15:21,839 INFO L225 Difference]: With dead ends: 3432 [2022-11-03 02:15:21,839 INFO L226 Difference]: Without dead ends: 2050 [2022-11-03 02:15:21,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:15:21,849 INFO L413 NwaCegarLoop]: 1084 mSDtfsCounter, 935 mSDsluCounter, 1010 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 1959 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-03 02:15:21,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [935 Valid, 1959 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 285 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-11-03 02:15:21,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2050 states. [2022-11-03 02:15:22,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2050 to 2043. [2022-11-03 02:15:22,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2043 states, 1342 states have (on average 1.3070044709388973) internal successors, (1754), 1384 states have internal predecessors, (1754), 548 states have call successors, (548), 154 states have call predecessors, (548), 152 states have return successors, (580), 522 states have call predecessors, (580), 544 states have call successors, (580) [2022-11-03 02:15:22,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2043 states to 2043 states and 2882 transitions. [2022-11-03 02:15:22,088 INFO L78 Accepts]: Start accepts. Automaton has 2043 states and 2882 transitions. Word has length 11 [2022-11-03 02:15:22,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:15:22,089 INFO L495 AbstractCegarLoop]: Abstraction has 2043 states and 2882 transitions. [2022-11-03 02:15:22,090 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 02:15:22,090 INFO L276 IsEmpty]: Start isEmpty. Operand 2043 states and 2882 transitions. [2022-11-03 02:15:22,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-03 02:15:22,093 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:15:22,093 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:15:22,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 02:15:22,094 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:15:22,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:15:22,103 INFO L85 PathProgramCache]: Analyzing trace with hash -805879540, now seen corresponding path program 1 times [2022-11-03 02:15:22,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:15:22,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165736860] [2022-11-03 02:15:22,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:22,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:15:22,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:22,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 02:15:22,752 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:15:22,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165736860] [2022-11-03 02:15:22,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165736860] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:15:22,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:15:22,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:15:22,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [329342812] [2022-11-03 02:15:22,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:15:22,754 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:15:22,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:15:22,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:15:22,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:15:22,755 INFO L87 Difference]: Start difference. First operand 2043 states and 2882 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-03 02:15:25,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:29,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:31,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:15:31,628 INFO L93 Difference]: Finished difference Result 4161 states and 5886 transitions. [2022-11-03 02:15:31,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:15:31,630 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 40 [2022-11-03 02:15:31,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:15:31,647 INFO L225 Difference]: With dead ends: 4161 [2022-11-03 02:15:31,647 INFO L226 Difference]: Without dead ends: 2122 [2022-11-03 02:15:31,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:15:31,662 INFO L413 NwaCegarLoop]: 877 mSDtfsCounter, 54 mSDsluCounter, 2001 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 2603 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2022-11-03 02:15:31,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 2603 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 459 Invalid, 2 Unknown, 0 Unchecked, 8.7s Time] [2022-11-03 02:15:31,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2122 states. [2022-11-03 02:15:31,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2122 to 2090. [2022-11-03 02:15:31,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2090 states, 1389 states have (on average 1.312455003599712) internal successors, (1823), 1431 states have internal predecessors, (1823), 548 states have call successors, (548), 154 states have call predecessors, (548), 152 states have return successors, (580), 522 states have call predecessors, (580), 544 states have call successors, (580) [2022-11-03 02:15:31,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2090 states to 2090 states and 2951 transitions. [2022-11-03 02:15:31,819 INFO L78 Accepts]: Start accepts. Automaton has 2090 states and 2951 transitions. Word has length 40 [2022-11-03 02:15:31,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:15:31,820 INFO L495 AbstractCegarLoop]: Abstraction has 2090 states and 2951 transitions. [2022-11-03 02:15:31,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-03 02:15:31,820 INFO L276 IsEmpty]: Start isEmpty. Operand 2090 states and 2951 transitions. [2022-11-03 02:15:31,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-03 02:15:31,831 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:15:31,831 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-03 02:15:31,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 02:15:31,832 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:15:31,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:15:31,833 INFO L85 PathProgramCache]: Analyzing trace with hash 599544004, now seen corresponding path program 1 times [2022-11-03 02:15:31,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:15:31,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902774811] [2022-11-03 02:15:31,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:31,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:15:31,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:32,490 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 02:15:32,491 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:15:32,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902774811] [2022-11-03 02:15:32,491 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902774811] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:15:32,491 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:15:32,492 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:15:32,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434321435] [2022-11-03 02:15:32,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:15:32,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:15:32,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:15:32,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:15:32,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:15:32,494 INFO L87 Difference]: Start difference. First operand 2090 states and 2951 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 02:15:35,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:37,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:39,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.69s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:40,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:44,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:45,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:15:45,028 INFO L93 Difference]: Finished difference Result 4201 states and 5928 transitions. [2022-11-03 02:15:45,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 02:15:45,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 64 [2022-11-03 02:15:45,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:15:45,049 INFO L225 Difference]: With dead ends: 4201 [2022-11-03 02:15:45,049 INFO L226 Difference]: Without dead ends: 2115 [2022-11-03 02:15:45,063 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:15:45,066 INFO L413 NwaCegarLoop]: 872 mSDtfsCounter, 10 mSDsluCounter, 3016 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 3479 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:15:45,068 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 3479 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 560 Invalid, 2 Unknown, 0 Unchecked, 12.4s Time] [2022-11-03 02:15:45,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2115 states. [2022-11-03 02:15:45,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2115 to 2100. [2022-11-03 02:15:45,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2100 states, 1396 states have (on average 1.310888252148997) internal successors, (1830), 1439 states have internal predecessors, (1830), 548 states have call successors, (548), 154 states have call predecessors, (548), 155 states have return successors, (585), 524 states have call predecessors, (585), 544 states have call successors, (585) [2022-11-03 02:15:45,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2963 transitions. [2022-11-03 02:15:45,172 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2963 transitions. Word has length 64 [2022-11-03 02:15:45,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:15:45,173 INFO L495 AbstractCegarLoop]: Abstraction has 2100 states and 2963 transitions. [2022-11-03 02:15:45,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 02:15:45,173 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2963 transitions. [2022-11-03 02:15:45,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-03 02:15:45,175 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:15:45,176 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2022-11-03 02:15:45,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 02:15:45,176 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:15:45,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:15:45,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1656071183, now seen corresponding path program 1 times [2022-11-03 02:15:45,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:15:45,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837187899] [2022-11-03 02:15:45,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:45,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:15:45,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:45,774 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:15:45,774 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:15:45,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837187899] [2022-11-03 02:15:45,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837187899] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:15:45,775 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:15:45,775 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 02:15:45,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916727097] [2022-11-03 02:15:45,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:15:45,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 02:15:45,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:15:45,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 02:15:45,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:15:45,778 INFO L87 Difference]: Start difference. First operand 2100 states and 2963 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-03 02:15:48,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:52,420 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:55,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:15:56,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:15:56,002 INFO L93 Difference]: Finished difference Result 2790 states and 3912 transitions. [2022-11-03 02:15:56,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 02:15:56,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 92 [2022-11-03 02:15:56,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:15:56,024 INFO L225 Difference]: With dead ends: 2790 [2022-11-03 02:15:56,024 INFO L226 Difference]: Without dead ends: 2775 [2022-11-03 02:15:56,027 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-03 02:15:56,027 INFO L413 NwaCegarLoop]: 1082 mSDtfsCounter, 947 mSDsluCounter, 3424 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 949 SdHoareTripleChecker+Valid, 4087 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2022-11-03 02:15:56,028 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [949 Valid, 4087 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 574 Invalid, 2 Unknown, 0 Unchecked, 10.0s Time] [2022-11-03 02:15:56,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2775 states. [2022-11-03 02:15:56,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2775 to 2756. [2022-11-03 02:15:56,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2756 states, 1827 states have (on average 1.3081554460864806) internal successors, (2390), 1882 states have internal predecessors, (2390), 723 states have call successors, (723), 204 states have call predecessors, (723), 205 states have return successors, (763), 693 states have call predecessors, (763), 719 states have call successors, (763) [2022-11-03 02:15:56,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2756 states to 2756 states and 3876 transitions. [2022-11-03 02:15:56,172 INFO L78 Accepts]: Start accepts. Automaton has 2756 states and 3876 transitions. Word has length 92 [2022-11-03 02:15:56,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:15:56,174 INFO L495 AbstractCegarLoop]: Abstraction has 2756 states and 3876 transitions. [2022-11-03 02:15:56,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-03 02:15:56,174 INFO L276 IsEmpty]: Start isEmpty. Operand 2756 states and 3876 transitions. [2022-11-03 02:15:56,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-03 02:15:56,177 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:15:56,178 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2022-11-03 02:15:56,178 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 02:15:56,178 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:15:56,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:15:56,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1886125916, now seen corresponding path program 1 times [2022-11-03 02:15:56,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:15:56,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476600973] [2022-11-03 02:15:56,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:15:56,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:15:57,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:15:58,371 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:15:58,372 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:15:58,372 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476600973] [2022-11-03 02:15:58,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476600973] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:15:58,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:15:58,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 02:15:58,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392245383] [2022-11-03 02:15:58,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:15:58,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 02:15:58,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:15:58,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 02:15:58,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:15:58,374 INFO L87 Difference]: Start difference. First operand 2756 states and 3876 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-03 02:16:03,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:04,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:16:04,123 INFO L93 Difference]: Finished difference Result 5510 states and 7839 transitions. [2022-11-03 02:16:04,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 02:16:04,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 100 [2022-11-03 02:16:04,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:16:04,145 INFO L225 Difference]: With dead ends: 5510 [2022-11-03 02:16:04,145 INFO L226 Difference]: Without dead ends: 2760 [2022-11-03 02:16:04,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 02:16:04,165 INFO L413 NwaCegarLoop]: 870 mSDtfsCounter, 0 mSDsluCounter, 1006 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:16:04,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1739 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2022-11-03 02:16:04,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2760 states. [2022-11-03 02:16:04,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2760 to 2760. [2022-11-03 02:16:04,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2760 states, 1831 states have (on average 1.3074822501365375) internal successors, (2394), 1886 states have internal predecessors, (2394), 723 states have call successors, (723), 204 states have call predecessors, (723), 205 states have return successors, (763), 693 states have call predecessors, (763), 719 states have call successors, (763) [2022-11-03 02:16:04,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2760 states to 2760 states and 3880 transitions. [2022-11-03 02:16:04,307 INFO L78 Accepts]: Start accepts. Automaton has 2760 states and 3880 transitions. Word has length 100 [2022-11-03 02:16:04,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:16:04,308 INFO L495 AbstractCegarLoop]: Abstraction has 2760 states and 3880 transitions. [2022-11-03 02:16:04,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 2 states have call successors, (20), 2 states have call predecessors, (20), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2022-11-03 02:16:04,309 INFO L276 IsEmpty]: Start isEmpty. Operand 2760 states and 3880 transitions. [2022-11-03 02:16:04,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-03 02:16:04,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:16:04,311 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 02:16:04,311 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 02:16:04,311 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:16:04,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:16:04,312 INFO L85 PathProgramCache]: Analyzing trace with hash -1857036143, now seen corresponding path program 1 times [2022-11-03 02:16:04,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:16:04,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108076226] [2022-11-03 02:16:04,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:04,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:16:04,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:04,874 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:16:04,875 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:16:04,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108076226] [2022-11-03 02:16:04,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108076226] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:16:04,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184597185] [2022-11-03 02:16:04,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:04,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:16:04,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51c2ed4-99b2-4af3-aadb-6bef6f103e7f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:16:04,881 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51c2ed4-99b2-4af3-aadb-6bef6f103e7f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:16:04,905 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51c2ed4-99b2-4af3-aadb-6bef6f103e7f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 02:16:05,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:06,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 2900 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-03 02:16:06,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:16:06,103 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:16:06,103 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 02:16:06,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184597185] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:16:06,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 02:16:06,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2022-11-03 02:16:06,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605638653] [2022-11-03 02:16:06,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:16:06,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 02:16:06,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:16:06,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 02:16:06,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:16:06,106 INFO L87 Difference]: Start difference. First operand 2760 states and 3880 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-03 02:16:08,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:10,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.83s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:11,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:15,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:15,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:16:15,615 INFO L93 Difference]: Finished difference Result 5514 states and 7754 transitions. [2022-11-03 02:16:15,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 02:16:15,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 95 [2022-11-03 02:16:15,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:16:15,639 INFO L225 Difference]: With dead ends: 5514 [2022-11-03 02:16:15,639 INFO L226 Difference]: Without dead ends: 2736 [2022-11-03 02:16:15,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 02:16:15,658 INFO L413 NwaCegarLoop]: 870 mSDtfsCounter, 22 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2022-11-03 02:16:15,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2576 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 428 Invalid, 1 Unknown, 0 Unchecked, 9.4s Time] [2022-11-03 02:16:15,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2736 states. [2022-11-03 02:16:15,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2736 to 2736. [2022-11-03 02:16:15,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2736 states, 1807 states have (on average 1.2993912562257885) internal successors, (2348), 1862 states have internal predecessors, (2348), 723 states have call successors, (723), 204 states have call predecessors, (723), 205 states have return successors, (763), 693 states have call predecessors, (763), 719 states have call successors, (763) [2022-11-03 02:16:15,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2736 states to 2736 states and 3834 transitions. [2022-11-03 02:16:15,851 INFO L78 Accepts]: Start accepts. Automaton has 2736 states and 3834 transitions. Word has length 95 [2022-11-03 02:16:15,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:16:15,852 INFO L495 AbstractCegarLoop]: Abstraction has 2736 states and 3834 transitions. [2022-11-03 02:16:15,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2022-11-03 02:16:15,853 INFO L276 IsEmpty]: Start isEmpty. Operand 2736 states and 3834 transitions. [2022-11-03 02:16:15,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-03 02:16:15,858 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:16:15,858 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 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] [2022-11-03 02:16:15,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51c2ed4-99b2-4af3-aadb-6bef6f103e7f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 02:16:16,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51c2ed4-99b2-4af3-aadb-6bef6f103e7f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-03 02:16:16,086 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:16:16,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:16:16,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1527537893, now seen corresponding path program 1 times [2022-11-03 02:16:16,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:16:16,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748807444] [2022-11-03 02:16:16,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:16,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:16:16,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:18,823 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-03 02:16:18,824 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:16:18,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748807444] [2022-11-03 02:16:18,824 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748807444] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 02:16:18,824 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 02:16:18,824 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 02:16:18,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814635944] [2022-11-03 02:16:18,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 02:16:18,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 02:16:18,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 02:16:18,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 02:16:18,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-03 02:16:18,826 INFO L87 Difference]: Start difference. First operand 2736 states and 3834 transitions. Second operand has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 5 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-03 02:16:22,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.08s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:24,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:35,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:42,396 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:43,819 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-03 02:16:47,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 02:16:47,931 INFO L93 Difference]: Finished difference Result 4586 states and 6639 transitions. [2022-11-03 02:16:47,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-03 02:16:47,932 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 5 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 97 [2022-11-03 02:16:47,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 02:16:47,963 INFO L225 Difference]: With dead ends: 4586 [2022-11-03 02:16:47,963 INFO L226 Difference]: Without dead ends: 4581 [2022-11-03 02:16:47,966 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-11-03 02:16:47,967 INFO L413 NwaCegarLoop]: 2201 mSDtfsCounter, 2651 mSDsluCounter, 5393 mSDsCounter, 0 mSdLazyCounter, 6825 mSolverCounterSat, 974 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2895 SdHoareTripleChecker+Valid, 6613 SdHoareTripleChecker+Invalid, 7802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 974 IncrementalHoareTripleChecker+Valid, 6825 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.6s IncrementalHoareTripleChecker+Time [2022-11-03 02:16:47,967 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2895 Valid, 6613 Invalid, 7802 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [974 Valid, 6825 Invalid, 3 Unknown, 0 Unchecked, 28.6s Time] [2022-11-03 02:16:47,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4581 states. [2022-11-03 02:16:48,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4581 to 4542. [2022-11-03 02:16:48,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4542 states, 3026 states have (on average 1.3043621943159287) internal successors, (3947), 3108 states have internal predecessors, (3947), 1216 states have call successors, (1216), 256 states have call predecessors, (1216), 299 states have return successors, (1412), 1207 states have call predecessors, (1412), 1212 states have call successors, (1412) [2022-11-03 02:16:48,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4542 states to 4542 states and 6575 transitions. [2022-11-03 02:16:48,280 INFO L78 Accepts]: Start accepts. Automaton has 4542 states and 6575 transitions. Word has length 97 [2022-11-03 02:16:48,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 02:16:48,280 INFO L495 AbstractCegarLoop]: Abstraction has 4542 states and 6575 transitions. [2022-11-03 02:16:48,281 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.5) internal successors, (52), 7 states have internal predecessors, (52), 5 states have call successors, (19), 5 states have call predecessors, (19), 2 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-03 02:16:48,282 INFO L276 IsEmpty]: Start isEmpty. Operand 4542 states and 6575 transitions. [2022-11-03 02:16:48,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-03 02:16:48,284 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 02:16:48,284 INFO L195 NwaCegarLoop]: trace histogram [5, 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] [2022-11-03 02:16:48,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 02:16:48,285 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 02:16:48,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 02:16:48,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1964941493, now seen corresponding path program 1 times [2022-11-03 02:16:48,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 02:16:48,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730806164] [2022-11-03 02:16:48,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:48,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 02:16:49,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:50,561 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:16:50,561 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 02:16:50,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730806164] [2022-11-03 02:16:50,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730806164] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 02:16:50,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609218693] [2022-11-03 02:16:50,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 02:16:50,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 02:16:50,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51c2ed4-99b2-4af3-aadb-6bef6f103e7f/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 02:16:50,564 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51c2ed4-99b2-4af3-aadb-6bef6f103e7f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 02:16:50,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c51c2ed4-99b2-4af3-aadb-6bef6f103e7f/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 02:16:52,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 02:16:52,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 3041 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-03 02:16:52,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 02:16:52,123 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-03 02:16:52,123 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 02:16:52,264 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-03 02:16:52,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609218693] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 02:16:52,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [391536226] [2022-11-03 02:16:52,290 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2022-11-03 02:16:52,290 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 02:16:52,294 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 02:16:52,300 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 02:16:52,301 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 02:16:54,937 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 373 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 72 treesize of output 116 [2022-11-03 02:16:55,361 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 747 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 176 [2022-11-03 02:16:55,890 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1185 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 211 [2022-11-03 02:16:56,408 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1389 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 147 treesize of output 241 [2022-11-03 02:16:57,051 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 121 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 61 [2022-11-03 02:16:57,332 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1185 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 211 [2022-11-03 02:16:57,843 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 396 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 121 [2022-11-03 02:16:58,099 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 291 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 96 [2022-11-03 02:16:58,483 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1890 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 174 treesize of output 286 [2022-11-03 02:16:58,940 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 800 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 111 treesize of output 181 [2022-11-03 02:16:59,511 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1996 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 180 treesize of output 296 [2022-11-03 02:18:45,152 INFO L197 IcfgInterpreter]: Interpreting procedure ttusb_dec_init with input of size 2697 for LOIs [2022-11-03 02:18:49,544 INFO L197 IcfgInterpreter]: Interpreting procedure ttusb_dec_probe with input of size 2743 for LOIs [2022-11-03 02:19:01,033 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2022-11-03 02:19:01,041 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-11-03 02:20:50,632 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 165 select indices, 165 select index equivalence classes, 13530 disjoint index pairs (out of 13530 index pairs), introduced 165 new quantified variables, introduced 0 case distinctions, treesize of input 13203 treesize of output 12543 [2022-11-03 02:20:53,413 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 166 select indices, 166 select index equivalence classes, 13695 disjoint index pairs (out of 13695 index pairs), introduced 166 new quantified variables, introduced 0 case distinctions, treesize of input 12543 treesize of output 11879 [2022-11-03 02:22:24,381 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 166 select indices, 166 select index equivalence classes, 13695 disjoint index pairs (out of 13695 index pairs), introduced 166 new quantified variables, introduced 0 case distinctions, treesize of input 13203 treesize of output 12539 [2022-11-03 02:22:27,027 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 165 select indices, 165 select index equivalence classes, 13530 disjoint index pairs (out of 13530 index pairs), introduced 165 new quantified variables, introduced 0 case distinctions, treesize of input 12539 treesize of output 11879 [2022-11-03 02:23:26,781 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 02:23:26,867 INFO L356 Elim1Store]: treesize reduction 27, result has 41.3 percent of original size [2022-11-03 02:23:26,867 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 56 treesize of output 38 [2022-11-03 02:23:27,044 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 02:23:28,372 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 02:23:28,403 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 02:23:28,433 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 02:23:28,828 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 02:23:28,856 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 02:23:28,890 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 02:23:29,347 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 02:23:29,375 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 02:23:29,404 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 02:23:29,874 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-11-03 02:23:29,897 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 02:23:29,931 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 02:23:30,318 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 02:23:30,350 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2022-11-03 02:23:30,382 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-11-03 02:23:32,325 INFO L356 Elim1Store]: treesize reduction 38, result has 57.3 percent of original size [2022-11-03 02:23:32,326 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 743 treesize of output 753 [2022-11-03 02:23:32,752 INFO L356 Elim1Store]: treesize reduction 38, result has 57.3 percent of original size [2022-11-03 02:23:32,754 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 707 treesize of output 717 [2022-11-03 02:23:32,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-03 02:23:33,046 INFO L356 Elim1Store]: treesize reduction 76, result has 40.2 percent of original size [2022-11-03 02:23:33,047 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 677 treesize of output 685 [2022-11-03 02:28:34,347 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 7050 conjuctions. This might take some time... [2022-11-03 02:28:39,297 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 7050 conjuctions. [2022-11-03 02:28:52,935 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 9554 conjuctions. This might take some time... [2022-11-03 02:29:04,901 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 9554 conjuctions.