./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 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8287dd2-4366-4599-9931-b38d33eee414/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8287dd2-4366-4599-9931-b38d33eee414/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8287dd2-4366-4599-9931-b38d33eee414/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8287dd2-4366-4599-9931-b38d33eee414/bin/utaipan-I9t0OCRTmS/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_d8287dd2-4366-4599-9931-b38d33eee414/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8287dd2-4366-4599-9931-b38d33eee414/bin/utaipan-I9t0OCRTmS --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-8393723 [2022-11-19 07:17:40,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:17:40,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:17:40,522 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:17:40,528 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:17:40,531 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:17:40,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:17:40,539 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:17:40,541 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:17:40,541 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:17:40,542 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:17:40,543 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:17:40,544 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:17:40,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:17:40,551 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:17:40,552 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:17:40,555 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:17:40,559 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:17:40,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:17:40,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:17:40,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:17:40,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:17:40,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:17:40,578 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:17:40,581 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:17:40,581 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:17:40,582 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:17:40,582 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:17:40,583 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:17:40,584 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:17:40,584 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:17:40,585 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:17:40,586 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:17:40,586 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:17:40,587 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:17:40,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:17:40,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:17:40,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:17:40,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:17:40,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:17:40,590 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:17:40,600 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8287dd2-4366-4599-9931-b38d33eee414/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-19 07:17:40,626 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:17:40,626 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:17:40,626 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:17:40,627 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:17:40,627 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:17:40,628 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:17:40,628 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:17:40,628 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:17:40,628 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:17:40,628 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:17:40,629 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:17:40,629 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:17:40,629 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:17:40,629 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:17:40,630 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:17:40,630 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:17:40,630 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:17:40,630 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:17:40,631 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:17:40,631 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:17:40,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:17:40,632 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:17:40,632 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:17:40,632 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:17:40,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:17:40,632 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:17:40,633 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:17:40,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:17:40,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:17:40,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:17:40,634 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:17:40,634 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:17:40,634 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:17:40,634 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:17:40,634 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:17:40,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:17:40,635 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:17:40,635 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:17:40,635 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_d8287dd2-4366-4599-9931-b38d33eee414/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8287dd2-4366-4599-9931-b38d33eee414/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c6aa6e54aa03d80dc4005d195dc80cde5e772aed59b94df03248a4abb3fc0ec [2022-11-19 07:17:40,935 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:17:40,964 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:17:40,967 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:17:40,968 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:17:40,969 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:17:40,970 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8287dd2-4366-4599-9931-b38d33eee414/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2022-11-19 07:17:41,031 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8287dd2-4366-4599-9931-b38d33eee414/bin/utaipan-I9t0OCRTmS/data/327a4021d/d82288395d0542a18728f47cd477e695/FLAG53fe98f14 [2022-11-19 07:17:41,939 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:17:41,941 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8287dd2-4366-4599-9931-b38d33eee414/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2022-11-19 07:17:41,991 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8287dd2-4366-4599-9931-b38d33eee414/bin/utaipan-I9t0OCRTmS/data/327a4021d/d82288395d0542a18728f47cd477e695/FLAG53fe98f14 [2022-11-19 07:17:42,349 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8287dd2-4366-4599-9931-b38d33eee414/bin/utaipan-I9t0OCRTmS/data/327a4021d/d82288395d0542a18728f47cd477e695 [2022-11-19 07:17:42,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:17:42,352 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:17:42,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:17:42,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:17:42,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:17:42,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:17:42" (1/1) ... [2022-11-19 07:17:42,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50549adf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:42, skipping insertion in model container [2022-11-19 07:17:42,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:17:42" (1/1) ... [2022-11-19 07:17:42,366 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:17:42,506 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:17:44,174 WARN L234 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_d8287dd2-4366-4599-9931-b38d33eee414/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i[284671,284684] [2022-11-19 07:17:44,225 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:17:44,254 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:17:44,634 WARN L234 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_d8287dd2-4366-4599-9931-b38d33eee414/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i[284671,284684] [2022-11-19 07:17:44,653 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:17:44,730 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:17:44,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:44 WrapperNode [2022-11-19 07:17:44,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:17:44,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:17:44,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:17:44,732 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:17:44,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:44" (1/1) ... [2022-11-19 07:17:44,833 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:44" (1/1) ... [2022-11-19 07:17:45,024 INFO L138 Inliner]: procedures = 177, calls = 1621, calls flagged for inlining = 87, calls inlined = 82, statements flattened = 3784 [2022-11-19 07:17:45,025 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:17:45,026 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:17:45,026 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:17:45,027 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:17:45,036 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:44" (1/1) ... [2022-11-19 07:17:45,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:44" (1/1) ... [2022-11-19 07:17:45,074 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:44" (1/1) ... [2022-11-19 07:17:45,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:44" (1/1) ... [2022-11-19 07:17:45,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:44" (1/1) ... [2022-11-19 07:17:45,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:44" (1/1) ... [2022-11-19 07:17:45,234 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:44" (1/1) ... [2022-11-19 07:17:45,246 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:44" (1/1) ... [2022-11-19 07:17:45,267 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:17:45,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:17:45,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:17:45,268 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:17:45,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:44" (1/1) ... [2022-11-19 07:17:45,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:17:45,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8287dd2-4366-4599-9931-b38d33eee414/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:17:45,301 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8287dd2-4366-4599-9931-b38d33eee414/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:17:45,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8287dd2-4366-4599-9931-b38d33eee414/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:17:45,348 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-11-19 07:17:45,348 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-11-19 07:17:45,348 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2022-11-19 07:17:45,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2022-11-19 07:17:45,349 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-11-19 07:17:45,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-11-19 07:17:45,349 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_free_iso_urbs [2022-11-19 07:17:45,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_free_iso_urbs [2022-11-19 07:17:45,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-19 07:17:45,350 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2022-11-19 07:17:45,350 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2022-11-19 07:17:45,350 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2022-11-19 07:17:45,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~$Pointer$~X~int~X~$Pointer$~X~int~TO~int [2022-11-19 07:17:45,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-19 07:17:45,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-19 07:17:45,351 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2022-11-19 07:17:45,351 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2022-11-19 07:17:45,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-19 07:17:45,352 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init_dvb [2022-11-19 07:17:45,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init_dvb [2022-11-19 07:17:45,352 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2022-11-19 07:17:45,352 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2022-11-19 07:17:45,352 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2022-11-19 07:17:45,353 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2022-11-19 07:17:45,353 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-19 07:17:45,353 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-19 07:17:45,353 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2022-11-19 07:17:45,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2022-11-19 07:17:45,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-19 07:17:45,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-19 07:17:45,354 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2022-11-19 07:17:45,354 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2022-11-19 07:17:45,354 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2022-11-19 07:17:45,355 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2022-11-19 07:17:45,355 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-19 07:17:45,356 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-19 07:17:45,356 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_start_iso_xfer [2022-11-19 07:17:45,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_start_iso_xfer [2022-11-19 07:17:45,356 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2022-11-19 07:17:45,357 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2022-11-19 07:17:45,357 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_send_command [2022-11-19 07:17:45,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_send_command [2022-11-19 07:17:45,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-19 07:17:45,357 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2022-11-19 07:17:45,358 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2022-11-19 07:17:45,358 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_setup_urbs [2022-11-19 07:17:45,358 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_setup_urbs [2022-11-19 07:17:45,359 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2022-11-19 07:17:45,359 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2022-11-19 07:17:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2022-11-19 07:17:45,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2022-11-19 07:17:45,360 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_pids [2022-11-19 07:17:45,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_pids [2022-11-19 07:17:45,361 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit [2022-11-19 07:17:45,361 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit [2022-11-19 07:17:45,361 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_usb [2022-11-19 07:17:45,362 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_usb [2022-11-19 07:17:45,362 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2022-11-19 07:17:45,362 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2022-11-19 07:17:45,363 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-19 07:17:45,363 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-11-19 07:17:45,363 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-11-19 07:17:45,363 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_init [2022-11-19 07:17:45,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_init [2022-11-19 07:17:45,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:17:45,364 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-19 07:17:45,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-19 07:17:45,364 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2022-11-19 07:17:45,364 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2022-11-19 07:17:45,365 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2022-11-19 07:17:45,365 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2022-11-19 07:17:45,365 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:17:45,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2022-11-19 07:17:45,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-19 07:17:45,365 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2022-11-19 07:17:45,365 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2022-11-19 07:17:45,366 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-11-19 07:17:45,366 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-11-19 07:17:45,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2022-11-19 07:17:45,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2022-11-19 07:17:45,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-19 07:17:45,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-19 07:17:45,367 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_probe [2022-11-19 07:17:45,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_probe [2022-11-19 07:17:45,367 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2022-11-19 07:17:45,368 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2022-11-19 07:17:45,368 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2022-11-19 07:17:45,368 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2022-11-19 07:17:45,369 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2022-11-19 07:17:45,369 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2022-11-19 07:17:45,369 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2022-11-19 07:17:45,370 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2022-11-19 07:17:45,371 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2022-11-19 07:17:45,371 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2022-11-19 07:17:45,371 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-19 07:17:45,371 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-19 07:17:45,372 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_exit_dvb [2022-11-19 07:17:45,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_exit_dvb [2022-11-19 07:17:45,372 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-11-19 07:17:45,372 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-11-19 07:17:45,372 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 07:17:45,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2022-11-19 07:17:45,373 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_disconnect [2022-11-19 07:17:45,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_disconnect [2022-11-19 07:17:45,373 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2022-11-19 07:17:45,373 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2022-11-19 07:17:45,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2022-11-19 07:17:45,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2022-11-19 07:17:45,374 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_set_model [2022-11-19 07:17:45,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_set_model [2022-11-19 07:17:45,375 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2022-11-19 07:17:45,378 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2022-11-19 07:17:45,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:17:45,378 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2022-11-19 07:17:45,378 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2022-11-19 07:17:45,380 INFO L130 BoogieDeclarations]: Found specification of procedure ttusb_dec_stop_iso_xfer [2022-11-19 07:17:45,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ttusb_dec_stop_iso_xfer [2022-11-19 07:17:45,382 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2022-11-19 07:17:45,382 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2022-11-19 07:17:45,383 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_filter_pes2ts_init [2022-11-19 07:17:45,388 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_filter_pes2ts_init [2022-11-19 07:17:45,388 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-19 07:17:45,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:17:45,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:17:46,187 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:17:46,190 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:17:46,427 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:17:46,591 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2022-11-19 07:17:46,591 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2022-11-19 07:17:47,050 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:17:48,383 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##221: assume false; [2022-11-19 07:17:48,383 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##222: assume !false; [2022-11-19 07:17:48,716 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2022-11-19 07:17:48,730 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:17:48,731 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:17:51,394 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##78: assume !false; [2022-11-19 07:17:51,394 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##77: assume false; [2022-11-19 07:17:51,395 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##39: assume !false; [2022-11-19 07:17:51,395 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##38: assume false; [2022-11-19 07:17:51,395 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint L8653: ttusb_dec_start_feed_#res#1 := 0; [2022-11-19 07:17:52,005 WARN L816 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2022-11-19 07:17:52,757 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume false; [2022-11-19 07:17:52,757 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##19: assume !false; [2022-11-19 07:17:52,813 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:17:53,862 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:17:53,862 INFO L300 CfgBuilder]: Removed 38 assume(true) statements. [2022-11-19 07:17:53,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:17:53 BoogieIcfgContainer [2022-11-19 07:17:53,868 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:17:53,870 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:17:53,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:17:53,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:17:53,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:17:42" (1/3) ... [2022-11-19 07:17:53,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b0c5fd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:17:53, skipping insertion in model container [2022-11-19 07:17:53,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:17:44" (2/3) ... [2022-11-19 07:17:53,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b0c5fd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:17:53, skipping insertion in model container [2022-11-19 07:17:53,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:17:53" (3/3) ... [2022-11-19 07:17:53,879 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-media-dvb-ttusb-dec-ttusb_dec.ko.cil.out.i [2022-11-19 07:17:53,903 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:17:53,903 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:17:53,997 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:17:54,010 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;@75982d82, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:17:54,010 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:17:54,019 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) [2022-11-19 07:17:54,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-19 07:17:54,028 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:17:54,029 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:17:54,030 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:17:54,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:17:54,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1666880117, now seen corresponding path program 1 times [2022-11-19 07:17:54,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:17:54,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838037222] [2022-11-19 07:17:54,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:17:54,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:17:54,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:17:54,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:17:54,803 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:17:54,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838037222] [2022-11-19 07:17:54,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838037222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:17:54,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:17:54,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:17:54,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654424677] [2022-11-19 07:17:54,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:17:54,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:17:54,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:17:54,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:17:54,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:17:54,854 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) [2022-11-19 07:17:57,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:00,110 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:02,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:18:02,362 INFO L93 Difference]: Finished difference Result 2126 states and 3201 transitions. [2022-11-19 07:18:02,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:18:02,366 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 [2022-11-19 07:18:02,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:18:02,396 INFO L225 Difference]: With dead ends: 2126 [2022-11-19 07:18:02,396 INFO L226 Difference]: Without dead ends: 1387 [2022-11-19 07:18:02,414 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 [2022-11-19 07:18:02,418 INFO L413 NwaCegarLoop]: 1101 mSDtfsCounter, 930 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 68 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 930 SdHoareTripleChecker+Valid, 1983 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:18:02,419 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [930 Valid, 1983 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 287 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2022-11-19 07:18:02,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1387 states. [2022-11-19 07:18:02,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1387 to 1382. [2022-11-19 07:18:02,603 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) [2022-11-19 07:18:02,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1382 states to 1382 states and 1939 transitions. [2022-11-19 07:18:02,620 INFO L78 Accepts]: Start accepts. Automaton has 1382 states and 1939 transitions. Word has length 10 [2022-11-19 07:18:02,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:18:02,621 INFO L495 AbstractCegarLoop]: Abstraction has 1382 states and 1939 transitions. [2022-11-19 07:18:02,622 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) [2022-11-19 07:18:02,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1382 states and 1939 transitions. [2022-11-19 07:18:02,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-19 07:18:02,623 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:18:02,623 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:18:02,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:18:02,623 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:18:02,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:18:02,624 INFO L85 PathProgramCache]: Analyzing trace with hash -134054729, now seen corresponding path program 1 times [2022-11-19 07:18:02,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:18:02,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370773999] [2022-11-19 07:18:02,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:02,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:18:02,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:18:03,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:18:03,087 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:18:03,088 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370773999] [2022-11-19 07:18:03,092 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370773999] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:18:03,092 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:18:03,092 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:18:03,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928387310] [2022-11-19 07:18:03,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:18:03,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:18:03,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:18:03,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:18:03,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:18:03,097 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) [2022-11-19 07:18:05,374 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 [] [2022-11-19 07:18:08,059 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 [] [2022-11-19 07:18:09,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:18:09,452 INFO L93 Difference]: Finished difference Result 3432 states and 4868 transitions. [2022-11-19 07:18:09,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:18:09,454 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 [2022-11-19 07:18:09,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:18:09,471 INFO L225 Difference]: With dead ends: 3432 [2022-11-19 07:18:09,471 INFO L226 Difference]: Without dead ends: 2050 [2022-11-19 07:18:09,480 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 [2022-11-19 07:18:09,481 INFO L413 NwaCegarLoop]: 1084 mSDtfsCounter, 935 mSDsluCounter, 875 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 1959 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:18:09,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [935 Valid, 1959 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 285 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-11-19 07:18:09,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2050 states. [2022-11-19 07:18:09,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2050 to 2043. [2022-11-19 07:18:09,587 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) [2022-11-19 07:18:09,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2043 states to 2043 states and 2882 transitions. [2022-11-19 07:18:09,607 INFO L78 Accepts]: Start accepts. Automaton has 2043 states and 2882 transitions. Word has length 11 [2022-11-19 07:18:09,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:18:09,608 INFO L495 AbstractCegarLoop]: Abstraction has 2043 states and 2882 transitions. [2022-11-19 07:18:09,608 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) [2022-11-19 07:18:09,608 INFO L276 IsEmpty]: Start isEmpty. Operand 2043 states and 2882 transitions. [2022-11-19 07:18:09,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-11-19 07:18:09,610 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:18:09,610 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] [2022-11-19 07:18:09,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:18:09,611 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:18:09,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:18:09,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1015735098, now seen corresponding path program 1 times [2022-11-19 07:18:09,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:18:09,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83466258] [2022-11-19 07:18:09,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:09,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:18:09,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:18:10,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:18:10,140 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:18:10,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83466258] [2022-11-19 07:18:10,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83466258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:18:10,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:18:10,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:18:10,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632266002] [2022-11-19 07:18:10,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:18:10,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:18:10,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:18:10,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:18:10,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:18:10,145 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) [2022-11-19 07:18:12,599 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 [] [2022-11-19 07:18:14,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:16,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:18:16,507 INFO L93 Difference]: Finished difference Result 4104 states and 5799 transitions. [2022-11-19 07:18:16,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:18:16,509 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 [2022-11-19 07:18:16,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:18:16,524 INFO L225 Difference]: With dead ends: 4104 [2022-11-19 07:18:16,524 INFO L226 Difference]: Without dead ends: 2066 [2022-11-19 07:18:16,536 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 [2022-11-19 07:18:16,537 INFO L413 NwaCegarLoop]: 868 mSDtfsCounter, 11 mSDsluCounter, 855 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1723 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:18:16,537 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1723 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 284 Invalid, 1 Unknown, 0 Unchecked, 6.2s Time] [2022-11-19 07:18:16,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2066 states. [2022-11-19 07:18:16,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2066 to 2066. [2022-11-19 07:18:16,636 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) [2022-11-19 07:18:16,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2066 states to 2066 states and 2913 transitions. [2022-11-19 07:18:16,661 INFO L78 Accepts]: Start accepts. Automaton has 2066 states and 2913 transitions. Word has length 40 [2022-11-19 07:18:16,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:18:16,662 INFO L495 AbstractCegarLoop]: Abstraction has 2066 states and 2913 transitions. [2022-11-19 07:18:16,662 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) [2022-11-19 07:18:16,663 INFO L276 IsEmpty]: Start isEmpty. Operand 2066 states and 2913 transitions. [2022-11-19 07:18:16,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-19 07:18:16,673 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:18:16,673 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] [2022-11-19 07:18:16,674 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:18:16,674 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:18:16,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:18:16,675 INFO L85 PathProgramCache]: Analyzing trace with hash -1310098565, now seen corresponding path program 1 times [2022-11-19 07:18:16,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:18:16,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826777308] [2022-11-19 07:18:16,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:16,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:18:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:18:17,511 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:18:17,511 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:18:17,512 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826777308] [2022-11-19 07:18:17,512 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826777308] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:18:17,512 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:18:17,512 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:18:17,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707462142] [2022-11-19 07:18:17,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:18:17,514 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:18:17,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:18:17,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:18:17,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:18:17,516 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) [2022-11-19 07:18:20,755 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:22,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:24,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:28,850 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 [] [2022-11-19 07:18:29,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:18:29,873 INFO L93 Difference]: Finished difference Result 4153 states and 5852 transitions. [2022-11-19 07:18:29,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-19 07:18:29,874 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 [2022-11-19 07:18:29,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:18:29,891 INFO L225 Difference]: With dead ends: 4153 [2022-11-19 07:18:29,892 INFO L226 Difference]: Without dead ends: 2091 [2022-11-19 07:18:29,906 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 [2022-11-19 07:18:29,907 INFO L413 NwaCegarLoop]: 872 mSDtfsCounter, 10 mSDsluCounter, 2607 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 3479 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:18:29,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 3479 Invalid, 563 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 560 Invalid, 2 Unknown, 0 Unchecked, 12.1s Time] [2022-11-19 07:18:29,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2091 states. [2022-11-19 07:18:30,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2091 to 2076. [2022-11-19 07:18:30,024 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) [2022-11-19 07:18:30,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2076 states to 2076 states and 2925 transitions. [2022-11-19 07:18:30,038 INFO L78 Accepts]: Start accepts. Automaton has 2076 states and 2925 transitions. Word has length 64 [2022-11-19 07:18:30,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:18:30,038 INFO L495 AbstractCegarLoop]: Abstraction has 2076 states and 2925 transitions. [2022-11-19 07:18:30,038 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) [2022-11-19 07:18:30,039 INFO L276 IsEmpty]: Start isEmpty. Operand 2076 states and 2925 transitions. [2022-11-19 07:18:30,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2022-11-19 07:18:30,041 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:18:30,042 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] [2022-11-19 07:18:30,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:18:30,042 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:18:30,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:18:30,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1627620118, now seen corresponding path program 1 times [2022-11-19 07:18:30,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:18:30,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537702841] [2022-11-19 07:18:30,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:30,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:18:30,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:18:30,746 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:18:30,747 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:18:30,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537702841] [2022-11-19 07:18:30,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537702841] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:18:30,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:18:30,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:18:30,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706923399] [2022-11-19 07:18:30,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:18:30,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:18:30,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:18:30,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:18:30,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:18:30,750 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) [2022-11-19 07:18:34,323 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 [] [2022-11-19 07:18:39,869 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 [] [2022-11-19 07:18:40,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:18:40,488 INFO L93 Difference]: Finished difference Result 2766 states and 3880 transitions. [2022-11-19 07:18:40,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:18:40,488 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 [2022-11-19 07:18:40,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:18:40,508 INFO L225 Difference]: With dead ends: 2766 [2022-11-19 07:18:40,508 INFO L226 Difference]: Without dead ends: 2751 [2022-11-19 07:18:40,511 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 [2022-11-19 07:18:40,512 INFO L413 NwaCegarLoop]: 1426 mSDtfsCounter, 947 mSDsluCounter, 3691 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 951 SdHoareTripleChecker+Valid, 5117 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:18:40,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [951 Valid, 5117 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 757 Invalid, 2 Unknown, 0 Unchecked, 9.6s Time] [2022-11-19 07:18:40,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2751 states. [2022-11-19 07:18:40,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2751 to 2734. [2022-11-19 07:18:40,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2734 states, 1804 states have (on average 1.3043237250554325) internal successors, (2353), 1860 states have internal predecessors, (2353), 723 states have call successors, (723), 204 states have call predecessors, (723), 206 states have return successors, (770), 693 states have call predecessors, (770), 719 states have call successors, (770) [2022-11-19 07:18:40,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2734 states to 2734 states and 3846 transitions. [2022-11-19 07:18:40,656 INFO L78 Accepts]: Start accepts. Automaton has 2734 states and 3846 transitions. Word has length 92 [2022-11-19 07:18:40,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:18:40,657 INFO L495 AbstractCegarLoop]: Abstraction has 2734 states and 3846 transitions. [2022-11-19 07:18:40,657 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) [2022-11-19 07:18:40,658 INFO L276 IsEmpty]: Start isEmpty. Operand 2734 states and 3846 transitions. [2022-11-19 07:18:40,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-11-19 07:18:40,659 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:18:40,660 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] [2022-11-19 07:18:40,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:18:40,660 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:18:40,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:18:40,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1795156855, now seen corresponding path program 1 times [2022-11-19 07:18:40,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:18:40,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749714879] [2022-11-19 07:18:40,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:40,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:18:42,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:18:42,785 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:18:42,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:18:42,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749714879] [2022-11-19 07:18:42,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749714879] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:18:42,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:18:42,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:18:42,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706195133] [2022-11-19 07:18:42,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:18:42,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:18:42,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:18:42,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:18:42,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:18:42,790 INFO L87 Difference]: Start difference. First operand 2734 states and 3846 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) [2022-11-19 07:18:48,987 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 [] [2022-11-19 07:18:49,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:18:49,253 INFO L93 Difference]: Finished difference Result 5466 states and 7785 transitions. [2022-11-19 07:18:49,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:18:49,254 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 [2022-11-19 07:18:49,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:18:49,271 INFO L225 Difference]: With dead ends: 5466 [2022-11-19 07:18:49,271 INFO L226 Difference]: Without dead ends: 2738 [2022-11-19 07:18:49,290 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 [2022-11-19 07:18:49,291 INFO L413 NwaCegarLoop]: 870 mSDtfsCounter, 0 mSDsluCounter, 869 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2022-11-19 07:18:49,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1739 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 278 Invalid, 1 Unknown, 0 Unchecked, 6.3s Time] [2022-11-19 07:18:49,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2738 states. [2022-11-19 07:18:49,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2738 to 2738. [2022-11-19 07:18:49,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2738 states, 1808 states have (on average 1.303650442477876) internal successors, (2357), 1864 states have internal predecessors, (2357), 723 states have call successors, (723), 204 states have call predecessors, (723), 206 states have return successors, (770), 693 states have call predecessors, (770), 719 states have call successors, (770) [2022-11-19 07:18:49,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2738 states to 2738 states and 3850 transitions. [2022-11-19 07:18:49,432 INFO L78 Accepts]: Start accepts. Automaton has 2738 states and 3850 transitions. Word has length 100 [2022-11-19 07:18:49,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:18:49,436 INFO L495 AbstractCegarLoop]: Abstraction has 2738 states and 3850 transitions. [2022-11-19 07:18:49,436 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) [2022-11-19 07:18:49,436 INFO L276 IsEmpty]: Start isEmpty. Operand 2738 states and 3850 transitions. [2022-11-19 07:18:49,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-11-19 07:18:49,441 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:18:49,442 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] [2022-11-19 07:18:49,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:18:49,442 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:18:49,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:18:49,443 INFO L85 PathProgramCache]: Analyzing trace with hash 166532597, now seen corresponding path program 1 times [2022-11-19 07:18:49,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:18:49,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602831345] [2022-11-19 07:18:49,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:49,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:18:49,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:18:49,982 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:18:49,982 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:18:49,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602831345] [2022-11-19 07:18:49,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602831345] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:18:49,983 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327469196] [2022-11-19 07:18:49,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:18:49,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:18:49,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8287dd2-4366-4599-9931-b38d33eee414/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:18:49,990 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8287dd2-4366-4599-9931-b38d33eee414/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:18:50,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8287dd2-4366-4599-9931-b38d33eee414/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:18:51,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:18:51,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 2950 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-19 07:18:51,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:18:51,266 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:18:51,267 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:18:51,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327469196] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:18:51,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:18:51,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2022-11-19 07:18:51,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25417716] [2022-11-19 07:18:51,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:18:51,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:18:51,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:18:51,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:18:51,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:18:51,269 INFO L87 Difference]: Start difference. First operand 2738 states and 3850 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) [2022-11-19 07:18:54,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:56,181 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:59,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-19 07:18:59,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:18:59,630 INFO L93 Difference]: Finished difference Result 5470 states and 7694 transitions. [2022-11-19 07:18:59,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:18:59,631 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 [2022-11-19 07:18:59,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:18:59,649 INFO L225 Difference]: With dead ends: 5470 [2022-11-19 07:18:59,650 INFO L226 Difference]: Without dead ends: 2738 [2022-11-19 07:18:59,665 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 [2022-11-19 07:18:59,666 INFO L413 NwaCegarLoop]: 870 mSDtfsCounter, 25 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 4 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 1729 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:18:59,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 1729 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 291 Invalid, 2 Unknown, 0 Unchecked, 8.2s Time] [2022-11-19 07:18:59,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2738 states. [2022-11-19 07:18:59,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2738 to 2738. [2022-11-19 07:18:59,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2738 states, 1808 states have (on average 1.3008849557522124) internal successors, (2352), 1864 states have internal predecessors, (2352), 723 states have call successors, (723), 204 states have call predecessors, (723), 206 states have return successors, (770), 693 states have call predecessors, (770), 719 states have call successors, (770) [2022-11-19 07:18:59,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2738 states to 2738 states and 3845 transitions. [2022-11-19 07:18:59,886 INFO L78 Accepts]: Start accepts. Automaton has 2738 states and 3845 transitions. Word has length 95 [2022-11-19 07:18:59,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:18:59,887 INFO L495 AbstractCegarLoop]: Abstraction has 2738 states and 3845 transitions. [2022-11-19 07:18:59,888 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) [2022-11-19 07:18:59,888 INFO L276 IsEmpty]: Start isEmpty. Operand 2738 states and 3845 transitions. [2022-11-19 07:18:59,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2022-11-19 07:18:59,893 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:18:59,893 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] [2022-11-19 07:18:59,911 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8287dd2-4366-4599-9931-b38d33eee414/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-19 07:19:00,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8287dd2-4366-4599-9931-b38d33eee414/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:19:00,106 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:19:00,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:19:00,106 INFO L85 PathProgramCache]: Analyzing trace with hash -760519433, now seen corresponding path program 1 times [2022-11-19 07:19:00,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:19:00,107 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149767236] [2022-11-19 07:19:00,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:19:00,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:19:00,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:19:02,667 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-11-19 07:19:02,667 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:19:02,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149767236] [2022-11-19 07:19:02,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149767236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:19:02,667 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:19:02,668 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 07:19:02,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342843849] [2022-11-19 07:19:02,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:19:02,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:19:02,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:19:02,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:19:02,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:19:02,669 INFO L87 Difference]: Start difference. First operand 2738 states and 3845 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) [2022-11-19 07:19:06,472 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 [] [2022-11-19 07:19:16,988 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 [] [2022-11-19 07:19:26,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:19:26,886 INFO L93 Difference]: Finished difference Result 4576 states and 6635 transitions. [2022-11-19 07:19:26,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-19 07:19:26,887 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 [2022-11-19 07:19:26,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:19:26,918 INFO L225 Difference]: With dead ends: 4576 [2022-11-19 07:19:26,919 INFO L226 Difference]: Without dead ends: 4571 [2022-11-19 07:19:26,922 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 [2022-11-19 07:19:26,923 INFO L413 NwaCegarLoop]: 1959 mSDtfsCounter, 2928 mSDsluCounter, 4008 mSDsCounter, 0 mSdLazyCounter, 6319 mSolverCounterSat, 1174 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3171 SdHoareTripleChecker+Valid, 5967 SdHoareTripleChecker+Invalid, 7495 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1174 IncrementalHoareTripleChecker+Valid, 6319 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.7s IncrementalHoareTripleChecker+Time [2022-11-19 07:19:26,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3171 Valid, 5967 Invalid, 7495 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1174 Valid, 6319 Invalid, 2 Unknown, 0 Unchecked, 23.7s Time] [2022-11-19 07:19:26,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4571 states. [2022-11-19 07:19:27,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4571 to 4530. [2022-11-19 07:19:27,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4530 states, 3016 states have (on average 1.3053713527851458) internal successors, (3937), 3098 states have internal predecessors, (3937), 1214 states have call successors, (1214), 256 states have call predecessors, (1214), 299 states have return successors, (1418), 1205 states have call predecessors, (1418), 1210 states have call successors, (1418) [2022-11-19 07:19:27,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4530 states to 4530 states and 6569 transitions. [2022-11-19 07:19:27,266 INFO L78 Accepts]: Start accepts. Automaton has 4530 states and 6569 transitions. Word has length 97 [2022-11-19 07:19:27,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:19:27,266 INFO L495 AbstractCegarLoop]: Abstraction has 4530 states and 6569 transitions. [2022-11-19 07:19:27,266 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) [2022-11-19 07:19:27,267 INFO L276 IsEmpty]: Start isEmpty. Operand 4530 states and 6569 transitions. [2022-11-19 07:19:27,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-11-19 07:19:27,268 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:19:27,269 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] [2022-11-19 07:19:27,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-19 07:19:27,269 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:19:27,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:19:27,270 INFO L85 PathProgramCache]: Analyzing trace with hash -307222065, now seen corresponding path program 1 times [2022-11-19 07:19:27,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:19:27,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981838174] [2022-11-19 07:19:27,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:19:27,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:19:28,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:19:29,350 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:19:29,351 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:19:29,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981838174] [2022-11-19 07:19:29,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981838174] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:19:29,352 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1521514282] [2022-11-19 07:19:29,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:19:29,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:19:29,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8287dd2-4366-4599-9931-b38d33eee414/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:19:29,353 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8287dd2-4366-4599-9931-b38d33eee414/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:19:29,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d8287dd2-4366-4599-9931-b38d33eee414/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:19:30,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:19:30,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 3090 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-19 07:19:30,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:19:30,898 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-19 07:19:30,903 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:19:31,063 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-11-19 07:19:31,063 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1521514282] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:19:31,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1049614278] [2022-11-19 07:19:31,092 INFO L159 IcfgInterpreter]: Started Sifa with 89 locations of interest [2022-11-19 07:19:31,092 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:19:31,096 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:19:31,101 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:19:31,101 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:19:34,219 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 [2022-11-19 07:19:34,694 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 [2022-11-19 07:19:35,174 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 [2022-11-19 07:19:35,563 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 [2022-11-19 07:19:36,087 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 [2022-11-19 07:19:36,386 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 [2022-11-19 07:19:36,910 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 [2022-11-19 07:19:37,205 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 [2022-11-19 07:19:37,504 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 [2022-11-19 07:19:37,896 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 [2022-11-19 07:19:38,424 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 [2022-11-19 07:21:09,062 INFO L197 IcfgInterpreter]: Interpreting procedure ttusb_dec_init with input of size 2715 for LOIs [2022-11-19 07:21:12,608 INFO L197 IcfgInterpreter]: Interpreting procedure ttusb_dec_probe with input of size 2733 for LOIs [2022-11-19 07:21:20,941 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 [2022-11-19 07:21:20,947 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 [2022-11-19 07:22:56,523 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 [2022-11-19 07:22:58,623 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 [2022-11-19 07:24:15,886 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 [2022-11-19 07:24:17,950 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 [2022-11-19 07:25:08,148 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 [2022-11-19 07:25:08,202 INFO L321 Elim1Store]: treesize reduction 27, result has 41.3 percent of original size [2022-11-19 07:25:08,203 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 [2022-11-19 07:25:08,327 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 [2022-11-19 07:25:09,173 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 [2022-11-19 07:25:09,246 INFO L321 Elim1Store]: treesize reduction 53, result has 43.6 percent of original size [2022-11-19 07:25:09,246 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 [2022-11-19 07:25:09,270 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 [2022-11-19 07:25:09,918 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 [2022-11-19 07:25:10,041 INFO L321 Elim1Store]: treesize reduction 220, result has 8.7 percent of original size [2022-11-19 07:25:10,042 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 [2022-11-19 07:25:10,090 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 [2022-11-19 07:25:13,688 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 [2022-11-19 07:25:13,703 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 [2022-11-19 07:25:13,719 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 [2022-11-19 07:25:13,985 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 [2022-11-19 07:25:14,043 INFO L321 Elim1Store]: treesize reduction 69, result has 37.3 percent of original size [2022-11-19 07:25:14,044 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 [2022-11-19 07:25:14,067 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 [2022-11-19 07:25:14,602 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 [2022-11-19 07:25:14,732 INFO L321 Elim1Store]: treesize reduction 236, result has 16.0 percent of original size [2022-11-19 07:25:14,732 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 [2022-11-19 07:25:14,775 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 [2022-11-19 07:25:20,014 INFO L321 Elim1Store]: treesize reduction 38, result has 57.3 percent of original size [2022-11-19 07:25:20,015 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 [2022-11-19 07:25:20,233 INFO L321 Elim1Store]: treesize reduction 38, result has 57.3 percent of original size [2022-11-19 07:25:20,233 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 [2022-11-19 07:25:20,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-11-19 07:25:20,451 INFO L321 Elim1Store]: treesize reduction 76, result has 40.2 percent of original size [2022-11-19 07:25:20,452 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 [2022-11-19 07:30:18,056 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 5262 conjuctions. This might take some time... [2022-11-19 07:30:23,006 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 5262 conjuctions. [2022-11-19 07:30:26,904 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 11602 conjuctions. This might take some time... [2022-11-19 07:30:40,962 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 11602 conjuctions. [2022-11-19 07:30:41,513 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 10524 conjuctions. This might take some time... [2022-11-19 07:30:50,501 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 10524 conjuctions. [2022-11-19 07:30:50,738 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 22126 conjuctions. This might take some time... [2022-11-19 07:31:47,269 INFO L192 XnfTransformerHelper]: Simplified to disjunction of 22126 conjuctions. [2022-11-19 07:32:06,642 WARN L176 XnfTransformerHelper]: Simplifying disjunction of 11528 conjuctions. This might take some time...