./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 e04fb08f 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_fa9d42f2-8eec-4026-890a-3f95ee613b70/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa9d42f2-8eec-4026-890a-3f95ee613b70/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa9d42f2-8eec-4026-890a-3f95ee613b70/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa9d42f2-8eec-4026-890a-3f95ee613b70/bin/utaipan-Xvt2sAort0/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_fa9d42f2-8eec-4026-890a-3f95ee613b70/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa9d42f2-8eec-4026-890a-3f95ee613b70/bin/utaipan-Xvt2sAort0 --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-e04fb08 [2022-11-16 15:55:14,418 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 15:55:14,421 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 15:55:14,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 15:55:14,444 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 15:55:14,445 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 15:55:14,447 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 15:55:14,448 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 15:55:14,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 15:55:14,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 15:55:14,452 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 15:55:14,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 15:55:14,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 15:55:14,455 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 15:55:14,456 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 15:55:14,457 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 15:55:14,458 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 15:55:14,459 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 15:55:14,461 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 15:55:14,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 15:55:14,465 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 15:55:14,466 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 15:55:14,468 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 15:55:14,469 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 15:55:14,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 15:55:14,473 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 15:55:14,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 15:55:14,475 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 15:55:14,475 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 15:55:14,476 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 15:55:14,477 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 15:55:14,478 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 15:55:14,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 15:55:14,479 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 15:55:14,480 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 15:55:14,481 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 15:55:14,481 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 15:55:14,482 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 15:55:14,482 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 15:55:14,483 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 15:55:14,484 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 15:55:14,485 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa9d42f2-8eec-4026-890a-3f95ee613b70/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-16 15:55:14,508 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 15:55:14,508 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 15:55:14,509 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 15:55:14,509 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 15:55:14,510 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 15:55:14,510 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 15:55:14,510 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 15:55:14,511 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 15:55:14,511 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 15:55:14,511 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 15:55:14,511 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 15:55:14,512 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 15:55:14,512 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 15:55:14,512 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 15:55:14,512 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 15:55:14,513 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 15:55:14,513 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 15:55:14,513 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 15:55:14,514 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 15:55:14,514 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 15:55:14,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 15:55:14,515 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 15:55:14,515 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 15:55:14,515 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 15:55:14,515 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 15:55:14,516 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 15:55:14,516 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 15:55:14,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 15:55:14,517 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 15:55:14,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 15:55:14,517 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 15:55:14,517 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 15:55:14,518 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 15:55:14,518 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 15:55:14,518 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 15:55:14,518 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 15:55:14,519 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 15:55:14,519 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 15:55:14,519 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_fa9d42f2-8eec-4026-890a-3f95ee613b70/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa9d42f2-8eec-4026-890a-3f95ee613b70/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c6aa6e54aa03d80dc4005d195dc80cde5e772aed59b94df03248a4abb3fc0ec [2022-11-16 15:55:14,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 15:55:14,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 15:55:14,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 15:55:14,867 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 15:55:14,868 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 15:55:14,870 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa9d42f2-8eec-4026-890a-3f95ee613b70/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2022-11-16 15:55:14,944 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa9d42f2-8eec-4026-890a-3f95ee613b70/bin/utaipan-Xvt2sAort0/data/31601f71c/c2d49f4bea7946c4ace7eb3a5459edd3/FLAG2424fd268 [2022-11-16 15:55:15,880 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 15:55:15,881 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa9d42f2-8eec-4026-890a-3f95ee613b70/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2022-11-16 15:55:15,948 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa9d42f2-8eec-4026-890a-3f95ee613b70/bin/utaipan-Xvt2sAort0/data/31601f71c/c2d49f4bea7946c4ace7eb3a5459edd3/FLAG2424fd268 [2022-11-16 15:55:16,333 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa9d42f2-8eec-4026-890a-3f95ee613b70/bin/utaipan-Xvt2sAort0/data/31601f71c/c2d49f4bea7946c4ace7eb3a5459edd3 [2022-11-16 15:55:16,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 15:55:16,337 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 15:55:16,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 15:55:16,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 15:55:16,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 15:55:16,347 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:55:16" (1/1) ... [2022-11-16 15:55:16,349 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ed1b190 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:16, skipping insertion in model container [2022-11-16 15:55:16,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:55:16" (1/1) ... [2022-11-16 15:55:16,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 15:55:16,546 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 15:55:18,565 WARN L229 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_fa9d42f2-8eec-4026-890a-3f95ee613b70/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i[284671,284684] [2022-11-16 15:55:18,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 15:55:18,680 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 15:55:19,054 WARN L229 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_fa9d42f2-8eec-4026-890a-3f95ee613b70/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i[284671,284684] [2022-11-16 15:55:19,072 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 15:55:19,149 INFO L208 MainTranslator]: Completed translation [2022-11-16 15:55:19,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:19 WrapperNode [2022-11-16 15:55:19,150 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 15:55:19,151 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 15:55:19,151 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 15:55:19,151 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 15:55:19,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:19" (1/1) ... [2022-11-16 15:55:19,230 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:19" (1/1) ... [2022-11-16 15:55:19,387 INFO L138 Inliner]: procedures = 177, calls = 1621, calls flagged for inlining = 87, calls inlined = 82, statements flattened = 3784 [2022-11-16 15:55:19,387 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 15:55:19,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 15:55:19,388 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 15:55:19,388 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 15:55:19,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:19" (1/1) ... [2022-11-16 15:55:19,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:19" (1/1) ... [2022-11-16 15:55:19,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:19" (1/1) ... [2022-11-16 15:55:19,420 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:19" (1/1) ... [2022-11-16 15:55:19,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:19" (1/1) ... [2022-11-16 15:55:19,578 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:19" (1/1) ... [2022-11-16 15:55:19,616 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:19" (1/1) ... [2022-11-16 15:55:19,633 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:19" (1/1) ... [2022-11-16 15:55:19,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 15:55:19,685 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 15:55:19,686 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 15:55:19,686 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 15:55:19,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:19" (1/1) ... [2022-11-16 15:55:19,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 15:55:19,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa9d42f2-8eec-4026-890a-3f95ee613b70/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:55:19,727 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa9d42f2-8eec-4026-890a-3f95ee613b70/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 15:55:19,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa9d42f2-8eec-4026-890a-3f95ee613b70/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 15:55:19,784 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-16 15:55:19,784 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-16 15:55:19,784 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-16 15:55:19,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-16 15:55:19,785 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-16 15:55:19,785 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-16 15:55:19,785 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_free_iso_urbs [2022-11-16 15:55:19,785 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_free_iso_urbs [2022-11-16 15:55:19,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-16 15:55:19,786 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-16 15:55:19,786 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-16 15:55:19,786 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2022-11-16 15:55:19,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2022-11-16 15:55:19,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 15:55:19,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 15:55:19,787 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-11-16 15:55:19,787 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-11-16 15:55:19,787 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 15:55:19,787 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_dvb [2022-11-16 15:55:19,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_dvb [2022-11-16 15:55:19,788 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-11-16 15:55:19,788 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-11-16 15:55:19,788 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2022-11-16 15:55:19,788 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2022-11-16 15:55:19,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-16 15:55:19,788 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-16 15:55:19,789 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-16 15:55:19,789 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-16 15:55:19,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 15:55:19,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 15:55:19,789 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-16 15:55:19,789 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-16 15:55:19,790 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-11-16 15:55:19,790 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-11-16 15:55:19,790 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 15:55:19,790 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 15:55:19,790 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_iso_xfer [2022-11-16 15:55:19,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_iso_xfer [2022-11-16 15:55:19,791 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-16 15:55:19,791 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-16 15:55:19,791 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_send_command [2022-11-16 15:55:19,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_send_command [2022-11-16 15:55:19,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 15:55:19,792 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-16 15:55:19,792 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-16 15:55:19,792 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_setup_urbs [2022-11-16 15:55:19,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_setup_urbs [2022-11-16 15:55:19,793 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2022-11-16 15:55:19,794 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2022-11-16 15:55:19,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2022-11-16 15:55:19,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2022-11-16 15:55:19,795 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_pids [2022-11-16 15:55:19,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_pids [2022-11-16 15:55:19,796 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit [2022-11-16 15:55:19,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit [2022-11-16 15:55:19,796 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_usb [2022-11-16 15:55:19,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_usb [2022-11-16 15:55:19,797 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2022-11-16 15:55:19,797 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2022-11-16 15:55:19,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 15:55:19,798 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-16 15:55:19,799 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-16 15:55:19,799 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init [2022-11-16 15:55:19,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init [2022-11-16 15:55:19,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 15:55:19,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 15:55:19,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 15:55:19,800 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2022-11-16 15:55:19,800 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2022-11-16 15:55:19,800 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-16 15:55:19,800 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-16 15:55:19,800 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 15:55:19,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-16 15:55:19,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 15:55:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-16 15:55:19,802 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-16 15:55:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-16 15:55:19,802 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-16 15:55:19,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-11-16 15:55:19,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-11-16 15:55:19,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 15:55:19,803 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 15:55:19,803 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_probe [2022-11-16 15:55:19,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_probe [2022-11-16 15:55:19,804 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-16 15:55:19,804 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-16 15:55:19,804 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2022-11-16 15:55:19,805 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2022-11-16 15:55:19,805 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-16 15:55:19,806 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-16 15:55:19,806 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-16 15:55:19,807 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-16 15:55:19,807 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-16 15:55:19,807 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-16 15:55:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-16 15:55:19,808 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-16 15:55:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_dvb [2022-11-16 15:55:19,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_dvb [2022-11-16 15:55:19,808 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-16 15:55:19,808 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-16 15:55:19,809 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-16 15:55:19,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-16 15:55:19,809 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_disconnect [2022-11-16 15:55:19,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_disconnect [2022-11-16 15:55:19,810 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-16 15:55:19,810 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-16 15:55:19,810 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2022-11-16 15:55:19,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2022-11-16 15:55:19,811 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_model [2022-11-16 15:55:19,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_model [2022-11-16 15:55:19,812 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-11-16 15:55:19,815 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-11-16 15:55:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 15:55:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2022-11-16 15:55:19,816 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2022-11-16 15:55:19,817 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_iso_xfer [2022-11-16 15:55:19,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_iso_xfer [2022-11-16 15:55:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-11-16 15:55:19,820 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-11-16 15:55:19,820 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_filter_pes2ts_init [2022-11-16 15:55:19,824 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_filter_pes2ts_init [2022-11-16 15:55:19,825 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-16 15:55:19,825 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 15:55:19,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 15:55:20,628 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 15:55:20,633 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 15:55:20,887 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-16 15:55:21,037 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2022-11-16 15:55:21,038 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2022-11-16 15:55:21,403 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-16 15:55:22,808 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##221: assume false; [2022-11-16 15:55:22,808 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##222: assume !false; [2022-11-16 15:55:23,157 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2022-11-16 15:55:23,169 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-16 15:55:23,169 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-16 15:55:25,900 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##78: assume !false; [2022-11-16 15:55:25,901 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##77: assume false; [2022-11-16 15:55:25,901 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume !false; [2022-11-16 15:55:25,901 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume false; [2022-11-16 15:55:25,901 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8653: ttusb_dec_start_feed_#res#1 := 0; [2022-11-16 15:55:26,559 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-16 15:55:27,546 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2022-11-16 15:55:27,546 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2022-11-16 15:55:27,615 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 15:55:28,684 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 15:55:28,684 INFO L300 CfgBuilder]: Removed 38 assume(true) statements. [2022-11-16 15:55:28,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 03:55:28 BoogieIcfgContainer [2022-11-16 15:55:28,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 15:55:28,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 15:55:28,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 15:55:28,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 15:55:28,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:55:16" (1/3) ... [2022-11-16 15:55:28,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61e2381c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:55:28, skipping insertion in model container [2022-11-16 15:55:28,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:55:19" (2/3) ... [2022-11-16 15:55:28,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61e2381c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:55:28, skipping insertion in model container [2022-11-16 15:55:28,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 03:55:28" (3/3) ... [2022-11-16 15:55:28,698 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2022-11-16 15:55:28,719 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 15:55:28,720 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 15:55:28,793 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 15:55:28,800 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;@1f2b976f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 15:55:28,800 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 15:55:28,807 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) [2022-11-16 15:55:28,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-16 15:55:28,815 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:55:28,816 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:55:28,816 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:55:28,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:55:28,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1666880117, now seen corresponding path program 1 times [2022-11-16 15:55:28,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:55:28,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566777302] [2022-11-16 15:55:28,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:55:28,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:55:29,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:55:29,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:55:29,714 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:55:29,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566777302] [2022-11-16 15:55:29,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566777302] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:55:29,715 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:55:29,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 15:55:29,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659537849] [2022-11-16 15:55:29,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:55:29,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 15:55:29,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:55:29,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 15:55:29,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 15:55:29,757 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) [2022-11-16 15:55:32,121 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 [] [2022-11-16 15:55:35,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 15:55:37,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:55:37,219 INFO L93 Difference]: Finished difference Result 2126 states and 3201 transitions. [2022-11-16 15:55:37,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 15:55:37,223 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 [2022-11-16 15:55:37,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:55:37,247 INFO L225 Difference]: With dead ends: 2126 [2022-11-16 15:55:37,248 INFO L226 Difference]: Without dead ends: 1387 [2022-11-16 15:55:37,258 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 [2022-11-16 15:55:37,261 INFO L413 NwaCegarLoop]: 1088 mSDtfsCounter, 930 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 68 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 930 SdHoareTripleChecker+Valid, 1970 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-16 15:55:37,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [930 Valid, 1970 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 285 Invalid, 2 Unknown, 0 Unchecked, 7.2s Time] [2022-11-16 15:55:37,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1387 states. [2022-11-16 15:55:37,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1387 to 1382. [2022-11-16 15:55:37,454 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) [2022-11-16 15:55:37,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1382 states to 1382 states and 1939 transitions. [2022-11-16 15:55:37,471 INFO L78 Accepts]: Start accepts. Automaton has 1382 states and 1939 transitions. Word has length 10 [2022-11-16 15:55:37,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:55:37,472 INFO L495 AbstractCegarLoop]: Abstraction has 1382 states and 1939 transitions. [2022-11-16 15:55:37,472 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) [2022-11-16 15:55:37,472 INFO L276 IsEmpty]: Start isEmpty. Operand 1382 states and 1939 transitions. [2022-11-16 15:55:37,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 15:55:37,473 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:55:37,473 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:55:37,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 15:55:37,474 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:55:37,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:55:37,475 INFO L85 PathProgramCache]: Analyzing trace with hash -134054729, now seen corresponding path program 1 times [2022-11-16 15:55:37,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:55:37,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632596954] [2022-11-16 15:55:37,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:55:37,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:55:37,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:55:37,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:55:37,961 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:55:37,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632596954] [2022-11-16 15:55:37,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632596954] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:55:37,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:55:37,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 15:55:37,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103909124] [2022-11-16 15:55:37,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:55:37,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 15:55:37,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:55:37,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 15:55:37,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 15:55:37,965 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) [2022-11-16 15:55:40,198 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 [] [2022-11-16 15:55:42,892 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 [] [2022-11-16 15:55:44,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:55:44,195 INFO L93 Difference]: Finished difference Result 3432 states and 4868 transitions. [2022-11-16 15:55:44,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 15:55:44,197 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 [2022-11-16 15:55:44,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:55:44,212 INFO L225 Difference]: With dead ends: 3432 [2022-11-16 15:55:44,212 INFO L226 Difference]: Without dead ends: 2050 [2022-11-16 15:55:44,220 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 [2022-11-16 15:55:44,221 INFO L413 NwaCegarLoop]: 1084 mSDtfsCounter, 935 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 1959 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:55:44,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [935 Valid, 1959 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 283 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2022-11-16 15:55:44,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2050 states. [2022-11-16 15:55:44,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2050 to 2043. [2022-11-16 15:55:44,315 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) [2022-11-16 15:55:44,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2043 states to 2043 states and 2882 transitions. [2022-11-16 15:55:44,335 INFO L78 Accepts]: Start accepts. Automaton has 2043 states and 2882 transitions. Word has length 11 [2022-11-16 15:55:44,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:55:44,335 INFO L495 AbstractCegarLoop]: Abstraction has 2043 states and 2882 transitions. [2022-11-16 15:55:44,336 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) [2022-11-16 15:55:44,336 INFO L276 IsEmpty]: Start isEmpty. Operand 2043 states and 2882 transitions. [2022-11-16 15:55:44,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-16 15:55:44,338 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:55:44,338 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] [2022-11-16 15:55:44,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 15:55:44,338 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:55:44,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:55:44,339 INFO L85 PathProgramCache]: Analyzing trace with hash -1015735098, now seen corresponding path program 1 times [2022-11-16 15:55:44,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:55:44,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826722101] [2022-11-16 15:55:44,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:55:44,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:55:44,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:55:44,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:55:44,904 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:55:44,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826722101] [2022-11-16 15:55:44,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826722101] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:55:44,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:55:44,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 15:55:44,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207263638] [2022-11-16 15:55:44,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:55:44,906 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 15:55:44,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:55:44,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 15:55:44,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 15:55:44,908 INFO L87 Difference]: Start difference. First operand 2043 states and 2882 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 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) [2022-11-16 15:55:47,401 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 [] [2022-11-16 15:55:50,073 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 [] [2022-11-16 15:55:51,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:55:51,206 INFO L93 Difference]: Finished difference Result 4104 states and 5799 transitions. [2022-11-16 15:55:51,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 15:55:51,208 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 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 [2022-11-16 15:55:51,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:55:51,222 INFO L225 Difference]: With dead ends: 4104 [2022-11-16 15:55:51,222 INFO L226 Difference]: Without dead ends: 2066 [2022-11-16 15:55:51,233 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 [2022-11-16 15:55:51,234 INFO L413 NwaCegarLoop]: 868 mSDtfsCounter, 11 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 282 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1723 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 282 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-16 15:55:51,235 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1723 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 282 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-11-16 15:55:51,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2066 states. [2022-11-16 15:55:51,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2066 to 2066. [2022-11-16 15:55:51,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2066 states, 1365 states have (on average 1.3076923076923077) internal successors, (1785), 1407 states have internal predecessors, (1785), 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) [2022-11-16 15:55:51,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2066 states to 2066 states and 2913 transitions. [2022-11-16 15:55:51,363 INFO L78 Accepts]: Start accepts. Automaton has 2066 states and 2913 transitions. Word has length 40 [2022-11-16 15:55:51,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:55:51,364 INFO L495 AbstractCegarLoop]: Abstraction has 2066 states and 2913 transitions. [2022-11-16 15:55:51,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 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) [2022-11-16 15:55:51,366 INFO L276 IsEmpty]: Start isEmpty. Operand 2066 states and 2913 transitions. [2022-11-16 15:55:51,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-16 15:55:51,375 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:55:51,375 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] [2022-11-16 15:55:51,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 15:55:51,376 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:55:51,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:55:51,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1310098565, now seen corresponding path program 1 times [2022-11-16 15:55:51,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:55:51,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131963576] [2022-11-16 15:55:51,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:55:51,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:55:51,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:55:52,169 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 15:55:52,169 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:55:52,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131963576] [2022-11-16 15:55:52,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131963576] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:55:52,170 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:55:52,170 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 15:55:52,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350156367] [2022-11-16 15:55:52,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:55:52,172 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 15:55:52,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:55:52,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 15:55:52,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 15:55:52,174 INFO L87 Difference]: Start difference. First operand 2066 states and 2913 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) [2022-11-16 15:55:55,660 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 [] [2022-11-16 15:55:59,142 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 [] [2022-11-16 15:55:59,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:55:59,573 INFO L93 Difference]: Finished difference Result 4153 states and 5852 transitions. [2022-11-16 15:55:59,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 15:55:59,574 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 [2022-11-16 15:55:59,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:55:59,589 INFO L225 Difference]: With dead ends: 4153 [2022-11-16 15:55:59,589 INFO L226 Difference]: Without dead ends: 2091 [2022-11-16 15:55:59,602 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 [2022-11-16 15:55:59,603 INFO L413 NwaCegarLoop]: 872 mSDtfsCounter, 10 mSDsluCounter, 2607 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 3479 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2022-11-16 15:55:59,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 3479 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 557 Invalid, 2 Unknown, 0 Unchecked, 7.3s Time] [2022-11-16 15:55:59,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2091 states. [2022-11-16 15:55:59,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2091 to 2076. [2022-11-16 15:55:59,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2076 states, 1372 states have (on average 1.3061224489795917) internal successors, (1792), 1415 states have internal predecessors, (1792), 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) [2022-11-16 15:55:59,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2076 states to 2076 states and 2925 transitions. [2022-11-16 15:55:59,786 INFO L78 Accepts]: Start accepts. Automaton has 2076 states and 2925 transitions. Word has length 64 [2022-11-16 15:55:59,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:55:59,786 INFO L495 AbstractCegarLoop]: Abstraction has 2076 states and 2925 transitions. [2022-11-16 15:55:59,787 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) [2022-11-16 15:55:59,787 INFO L276 IsEmpty]: Start isEmpty. Operand 2076 states and 2925 transitions. [2022-11-16 15:55:59,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-16 15:55:59,794 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:55:59,794 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] [2022-11-16 15:55:59,794 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 15:55:59,795 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:55:59,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:55:59,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1627620118, now seen corresponding path program 1 times [2022-11-16 15:55:59,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:55:59,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580152650] [2022-11-16 15:55:59,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:55:59,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:56:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:00,560 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-16 15:56:00,560 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:56:00,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580152650] [2022-11-16 15:56:00,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580152650] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:56:00,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:56:00,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 15:56:00,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466568112] [2022-11-16 15:56:00,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:56:00,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 15:56:00,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:56:00,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 15:56:00,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 15:56:00,563 INFO L87 Difference]: Start difference. First operand 2076 states and 2925 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) [2022-11-16 15:56:03,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 15:56:05,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 15:56:06,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 15:56:10,051 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 15:56:12,360 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 15:56:12,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:56:12,996 INFO L93 Difference]: Finished difference Result 2766 states and 3874 transitions. [2022-11-16 15:56:12,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 15:56:12,998 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 [2022-11-16 15:56:12,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:56:13,024 INFO L225 Difference]: With dead ends: 2766 [2022-11-16 15:56:13,028 INFO L226 Difference]: Without dead ends: 2751 [2022-11-16 15:56:13,031 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 [2022-11-16 15:56:13,034 INFO L413 NwaCegarLoop]: 1081 mSDtfsCounter, 947 mSDsluCounter, 3003 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 949 SdHoareTripleChecker+Valid, 4084 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2022-11-16 15:56:13,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [949 Valid, 4084 Invalid, 581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 574 Invalid, 2 Unknown, 0 Unchecked, 12.3s Time] [2022-11-16 15:56:13,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2751 states. [2022-11-16 15:56:13,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2751 to 2732. [2022-11-16 15:56:13,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2732 states, 1803 states have (on average 1.3044925124792013) internal successors, (2352), 1858 states have internal predecessors, (2352), 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) [2022-11-16 15:56:13,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2732 states to 2732 states and 3838 transitions. [2022-11-16 15:56:13,222 INFO L78 Accepts]: Start accepts. Automaton has 2732 states and 3838 transitions. Word has length 92 [2022-11-16 15:56:13,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:56:13,223 INFO L495 AbstractCegarLoop]: Abstraction has 2732 states and 3838 transitions. [2022-11-16 15:56:13,223 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) [2022-11-16 15:56:13,223 INFO L276 IsEmpty]: Start isEmpty. Operand 2732 states and 3838 transitions. [2022-11-16 15:56:13,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-16 15:56:13,227 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:56:13,227 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] [2022-11-16 15:56:13,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 15:56:13,230 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:56:13,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:56:13,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1795156855, now seen corresponding path program 1 times [2022-11-16 15:56:13,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:56:13,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724651585] [2022-11-16 15:56:13,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:13,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:56:14,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:15,297 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-16 15:56:15,297 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:56:15,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724651585] [2022-11-16 15:56:15,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724651585] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:56:15,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:56:15,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 15:56:15,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982861979] [2022-11-16 15:56:15,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:56:15,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 15:56:15,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:56:15,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 15:56:15,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 15:56:15,300 INFO L87 Difference]: Start difference. First operand 2732 states and 3838 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) [2022-11-16 15:56:18,451 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 15:56:21,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 15:56:21,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:56:21,679 INFO L93 Difference]: Finished difference Result 5462 states and 7763 transitions. [2022-11-16 15:56:21,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 15:56:21,681 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 [2022-11-16 15:56:21,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:56:21,703 INFO L225 Difference]: With dead ends: 5462 [2022-11-16 15:56:21,703 INFO L226 Difference]: Without dead ends: 2736 [2022-11-16 15:56:21,723 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 [2022-11-16 15:56:21,724 INFO L413 NwaCegarLoop]: 870 mSDtfsCounter, 0 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-16 15:56:21,724 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1739 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2022-11-16 15:56:21,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2736 states. [2022-11-16 15:56:21,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2736 to 2736. [2022-11-16 15:56:21,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2736 states, 1807 states have (on average 1.3038184836745987) internal successors, (2356), 1862 states have internal predecessors, (2356), 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) [2022-11-16 15:56:21,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2736 states to 2736 states and 3842 transitions. [2022-11-16 15:56:21,875 INFO L78 Accepts]: Start accepts. Automaton has 2736 states and 3842 transitions. Word has length 100 [2022-11-16 15:56:21,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:56:21,876 INFO L495 AbstractCegarLoop]: Abstraction has 2736 states and 3842 transitions. [2022-11-16 15:56:21,876 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) [2022-11-16 15:56:21,876 INFO L276 IsEmpty]: Start isEmpty. Operand 2736 states and 3842 transitions. [2022-11-16 15:56:21,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-16 15:56:21,882 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:56:21,882 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] [2022-11-16 15:56:21,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 15:56:21,883 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:56:21,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:56:21,883 INFO L85 PathProgramCache]: Analyzing trace with hash 166532597, now seen corresponding path program 1 times [2022-11-16 15:56:21,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:56:21,884 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041142632] [2022-11-16 15:56:21,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:21,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:56:22,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:22,398 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-16 15:56:22,398 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:56:22,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041142632] [2022-11-16 15:56:22,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041142632] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:56:22,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26125314] [2022-11-16 15:56:22,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:22,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:56:22,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa9d42f2-8eec-4026-890a-3f95ee613b70/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:56:22,404 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa9d42f2-8eec-4026-890a-3f95ee613b70/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:56:22,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa9d42f2-8eec-4026-890a-3f95ee613b70/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 15:56:23,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:23,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 2950 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 15:56:23,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:56:23,849 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-16 15:56:23,849 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 15:56:23,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26125314] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:56:23,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 15:56:23,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2022-11-16 15:56:23,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285253068] [2022-11-16 15:56:23,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:56:23,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 15:56:23,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:56:23,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 15:56:23,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 15:56:23,853 INFO L87 Difference]: Start difference. First operand 2736 states and 3842 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) [2022-11-16 15:56:26,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 15:56:29,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 15:56:32,703 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 [] [2022-11-16 15:56:33,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:56:33,066 INFO L93 Difference]: Finished difference Result 5466 states and 7678 transitions. [2022-11-16 15:56:33,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 15:56:33,068 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 [2022-11-16 15:56:33,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:56:33,092 INFO L225 Difference]: With dead ends: 5466 [2022-11-16 15:56:33,092 INFO L226 Difference]: Without dead ends: 2736 [2022-11-16 15:56:33,107 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 [2022-11-16 15:56:33,109 INFO L413 NwaCegarLoop]: 870 mSDtfsCounter, 22 mSDsluCounter, 1706 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s 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, 9.1s IncrementalHoareTripleChecker+Time [2022-11-16 15:56:33,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 2576 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 428 Invalid, 1 Unknown, 0 Unchecked, 9.1s Time] [2022-11-16 15:56:33,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2736 states. [2022-11-16 15:56:33,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2736 to 2736. [2022-11-16 15:56:33,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2736 states, 1807 states have (on average 1.3010514665190924) internal successors, (2351), 1862 states have internal predecessors, (2351), 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) [2022-11-16 15:56:33,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2736 states to 2736 states and 3837 transitions. [2022-11-16 15:56:33,283 INFO L78 Accepts]: Start accepts. Automaton has 2736 states and 3837 transitions. Word has length 95 [2022-11-16 15:56:33,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:56:33,284 INFO L495 AbstractCegarLoop]: Abstraction has 2736 states and 3837 transitions. [2022-11-16 15:56:33,284 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) [2022-11-16 15:56:33,284 INFO L276 IsEmpty]: Start isEmpty. Operand 2736 states and 3837 transitions. [2022-11-16 15:56:33,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-16 15:56:33,286 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:56:33,287 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] [2022-11-16 15:56:33,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa9d42f2-8eec-4026-890a-3f95ee613b70/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 15:56:33,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa9d42f2-8eec-4026-890a-3f95ee613b70/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:56:33,506 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:56:33,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:56:33,506 INFO L85 PathProgramCache]: Analyzing trace with hash -760519433, now seen corresponding path program 1 times [2022-11-16 15:56:33,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:56:33,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353029289] [2022-11-16 15:56:33,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:56:33,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:56:33,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:56:36,223 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-16 15:56:36,224 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:56:36,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353029289] [2022-11-16 15:56:36,224 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353029289] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:56:36,224 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:56:36,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 15:56:36,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420582889] [2022-11-16 15:56:36,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:56:36,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 15:56:36,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:56:36,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 15:56:36,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 15:56:36,226 INFO L87 Difference]: Start difference. First operand 2736 states and 3837 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) [2022-11-16 15:56:39,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 15:56:50,267 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 15:56:58,175 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.94s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 15:56:59,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 15:57:01,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 15:57:06,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:57:06,146 INFO L93 Difference]: Finished difference Result 4586 states and 6643 transitions. [2022-11-16 15:57:06,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 15:57:06,147 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 [2022-11-16 15:57:06,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:57:06,181 INFO L225 Difference]: With dead ends: 4586 [2022-11-16 15:57:06,182 INFO L226 Difference]: Without dead ends: 4581 [2022-11-16 15:57:06,185 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 [2022-11-16 15:57:06,186 INFO L413 NwaCegarLoop]: 1971 mSDtfsCounter, 3868 mSDsluCounter, 3531 mSDsCounter, 0 mSdLazyCounter, 5982 mSolverCounterSat, 1862 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4112 SdHoareTripleChecker+Valid, 5502 SdHoareTripleChecker+Invalid, 7846 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1862 IncrementalHoareTripleChecker+Valid, 5982 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.3s IncrementalHoareTripleChecker+Time [2022-11-16 15:57:06,186 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4112 Valid, 5502 Invalid, 7846 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1862 Valid, 5982 Invalid, 2 Unknown, 0 Unchecked, 29.3s Time] [2022-11-16 15:57:06,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4581 states. [2022-11-16 15:57:06,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4581 to 4542. [2022-11-16 15:57:06,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4542 states, 3026 states have (on average 1.3056840713813616) internal successors, (3951), 3108 states have internal predecessors, (3951), 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) [2022-11-16 15:57:06,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4542 states to 4542 states and 6579 transitions. [2022-11-16 15:57:06,524 INFO L78 Accepts]: Start accepts. Automaton has 4542 states and 6579 transitions. Word has length 97 [2022-11-16 15:57:06,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:57:06,525 INFO L495 AbstractCegarLoop]: Abstraction has 4542 states and 6579 transitions. [2022-11-16 15:57:06,526 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) [2022-11-16 15:57:06,526 INFO L276 IsEmpty]: Start isEmpty. Operand 4542 states and 6579 transitions. [2022-11-16 15:57:06,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-16 15:57:06,530 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:57:06,530 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] [2022-11-16 15:57:06,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 15:57:06,532 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:57:06,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:57:06,533 INFO L85 PathProgramCache]: Analyzing trace with hash -307222065, now seen corresponding path program 1 times [2022-11-16 15:57:06,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:57:06,533 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18298027] [2022-11-16 15:57:06,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:57:06,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:57:07,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:57:08,580 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-16 15:57:08,581 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:57:08,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18298027] [2022-11-16 15:57:08,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18298027] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 15:57:08,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525054286] [2022-11-16 15:57:08,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:57:08,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 15:57:08,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa9d42f2-8eec-4026-890a-3f95ee613b70/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:57:08,583 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa9d42f2-8eec-4026-890a-3f95ee613b70/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 15:57:08,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa9d42f2-8eec-4026-890a-3f95ee613b70/bin/utaipan-Xvt2sAort0/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 15:57:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:57:10,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 3090 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 15:57:10,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 15:57:10,345 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-16 15:57:10,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 15:57:10,490 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-16 15:57:10,490 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525054286] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 15:57:10,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [19919509] [2022-11-16 15:57:10,518 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2022-11-16 15:57:10,518 INFO L166 IcfgInterpreter]: Building call graph [2022-11-16 15:57:10,522 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-16 15:57:10,528 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-16 15:57:10,529 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-16 15:57:13,896 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:57:14,428 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:57:14,875 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:57:15,379 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:57:16,093 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:57:16,359 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:57:17,049 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:57:17,381 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:57:17,824 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:57:18,248 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:57:18,864 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:58:54,094 INFO L197 IcfgInterpreter]: Interpreting procedure ttusb_dec_init with input of size 2715 for LOIs [2022-11-16 15:58:57,995 INFO L197 IcfgInterpreter]: Interpreting procedure ttusb_dec_probe with input of size 2733 for LOIs [2022-11-16 15:59:07,052 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 15:59:07,057 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 16:00:40,867 INFO L350 Elim1Store]: Elim1 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 13419 treesize of output 12759 [2022-11-16 16:00:42,907 INFO L350 Elim1Store]: Elim1 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 12759 treesize of output 12095 [2022-11-16 16:02:00,503 INFO L350 Elim1Store]: Elim1 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 13419 treesize of output 12755 [2022-11-16 16:02:02,657 INFO L350 Elim1Store]: Elim1 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 12755 treesize of output 12095 [2022-11-16 16:02:54,156 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 16:02:54,211 INFO L321 Elim1Store]: treesize reduction 27, result has 41.3 percent of original size [2022-11-16 16:02:54,211 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 16:02:54,376 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 16:02:55,289 INFO L350 Elim1Store]: Elim1 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 68 treesize of output 46 [2022-11-16 16:02:55,347 INFO L321 Elim1Store]: treesize reduction 53, result has 43.6 percent of original size [2022-11-16 16:02:55,348 INFO L350 Elim1Store]: Elim1 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 72 treesize of output 77 [2022-11-16 16:02:55,368 INFO L350 Elim1Store]: Elim1 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 61 treesize of output 39 [2022-11-16 16:02:56,048 INFO L350 Elim1Store]: Elim1 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 523 treesize of output 483 [2022-11-16 16:02:56,168 INFO L321 Elim1Store]: treesize reduction 220, result has 8.7 percent of original size [2022-11-16 16:02:56,169 INFO L350 Elim1Store]: Elim1 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 546 treesize of output 511 [2022-11-16 16:02:56,215 INFO L350 Elim1Store]: Elim1 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 475 treesize of output 447 [2022-11-16 16:02:59,839 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 16:02:59,854 INFO L350 Elim1Store]: Elim1 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 [2022-11-16 16:02:59,874 INFO L350 Elim1Store]: Elim1 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 22 treesize of output 18 [2022-11-16 16:03:00,257 INFO L350 Elim1Store]: Elim1 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 68 treesize of output 46 [2022-11-16 16:03:00,333 INFO L321 Elim1Store]: treesize reduction 69, result has 37.3 percent of original size [2022-11-16 16:03:00,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 80 treesize of output 88 [2022-11-16 16:03:00,358 INFO L350 Elim1Store]: Elim1 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 61 treesize of output 39 [2022-11-16 16:03:01,019 INFO L350 Elim1Store]: Elim1 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 539 treesize of output 499 [2022-11-16 16:03:01,169 INFO L321 Elim1Store]: treesize reduction 236, result has 16.0 percent of original size [2022-11-16 16:03:01,170 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 562 treesize of output 548 [2022-11-16 16:03:01,217 INFO L350 Elim1Store]: Elim1 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 532 treesize of output 492 [2022-11-16 16:03:06,801 INFO L321 Elim1Store]: treesize reduction 38, result has 57.3 percent of original size [2022-11-16 16:03:06,802 INFO L350 Elim1Store]: Elim1 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 870 treesize of output 880 [2022-11-16 16:03:07,098 INFO L321 Elim1Store]: treesize reduction 38, result has 57.3 percent of original size [2022-11-16 16:03:07,099 INFO L350 Elim1Store]: Elim1 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 834 treesize of output 844 [2022-11-16 16:03:07,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-16 16:03:07,345 INFO L321 Elim1Store]: treesize reduction 76, result has 40.2 percent of original size [2022-11-16 16:03:07,345 INFO L350 Elim1Store]: Elim1 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 804 treesize of output 812 [2022-11-16 16:08:44,925 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 5262 conjuctions. This might take some time... [2022-11-16 16:08:47,634 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 5262 conjuctions. [2022-11-16 16:08:51,050 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 11602 conjuctions. This might take some time... [2022-11-16 16:09:06,642 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 11602 conjuctions. [2022-11-16 16:09:07,266 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 10524 conjuctions. This might take some time... [2022-11-16 16:09:19,236 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 10524 conjuctions. [2022-11-16 16:09:19,492 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 22126 conjuctions. This might take some time...