./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0fddb7f-6461-422d-9071-fc677d936d66/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0fddb7f-6461-422d-9071-fc677d936d66/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0fddb7f-6461-422d-9071-fc677d936d66/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0fddb7f-6461-422d-9071-fc677d936d66/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0fddb7f-6461-422d-9071-fc677d936d66/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0fddb7f-6461-422d-9071-fc677d936d66/bin/utaipan-EQgc7hIp5V --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 6992add114e455bb94387f79e47de65715ed99025d29a244ffa0e4253f425809 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:30:46,522 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:30:46,525 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:30:46,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:30:46,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:30:46,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:30:46,570 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:30:46,572 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:30:46,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:30:46,576 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:30:46,577 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:30:46,578 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:30:46,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:30:46,580 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:30:46,582 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:30:46,583 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:30:46,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:30:46,585 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:30:46,588 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:30:46,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:30:46,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:30:46,594 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:30:46,596 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:30:46,597 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:30:46,601 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:30:46,601 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:30:46,602 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:30:46,603 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:30:46,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:30:46,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:30:46,605 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:30:46,606 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:30:46,607 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:30:46,607 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:30:46,609 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:30:46,609 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:30:46,610 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:30:46,610 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:30:46,611 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:30:46,612 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:30:46,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:30:46,613 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0fddb7f-6461-422d-9071-fc677d936d66/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-64bit-Taipan_Default.epf [2021-11-23 02:30:46,639 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:30:46,639 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:30:46,640 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:30:46,640 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:30:46,641 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:30:46,641 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:30:46,642 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:30:46,642 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:30:46,642 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:30:46,643 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:30:46,643 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:30:46,644 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:30:46,644 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:30:46,644 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:30:46,645 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:30:46,645 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:30:46,646 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:30:46,646 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:30:46,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:30:46,647 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:30:46,648 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:30:46,648 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:30:46,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:30:46,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:30:46,649 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:30:46,650 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:30:46,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:30:46,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:30:46,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:30:46,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:30:46,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:30:46,652 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:30:46,652 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:30:46,652 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:30:46,652 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:30:46,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:30:46,653 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:30:46,653 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:30:46,653 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_b0fddb7f-6461-422d-9071-fc677d936d66/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0fddb7f-6461-422d-9071-fc677d936d66/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6992add114e455bb94387f79e47de65715ed99025d29a244ffa0e4253f425809 [2021-11-23 02:30:46,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:30:46,957 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:30:46,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:30:46,960 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:30:46,961 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:30:46,962 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0fddb7f-6461-422d-9071-fc677d936d66/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i [2021-11-23 02:30:47,022 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0fddb7f-6461-422d-9071-fc677d936d66/bin/utaipan-EQgc7hIp5V/data/ddcdf1fec/4e9576439c424e3da00221912ccfeb96/FLAGb295e0797 [2021-11-23 02:30:47,955 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:30:47,956 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0fddb7f-6461-422d-9071-fc677d936d66/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i [2021-11-23 02:30:48,002 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0fddb7f-6461-422d-9071-fc677d936d66/bin/utaipan-EQgc7hIp5V/data/ddcdf1fec/4e9576439c424e3da00221912ccfeb96/FLAGb295e0797 [2021-11-23 02:30:48,302 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0fddb7f-6461-422d-9071-fc677d936d66/bin/utaipan-EQgc7hIp5V/data/ddcdf1fec/4e9576439c424e3da00221912ccfeb96 [2021-11-23 02:30:48,304 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:30:48,306 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:30:48,309 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:30:48,310 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:30:48,313 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:30:48,314 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:30:48" (1/1) ... [2021-11-23 02:30:48,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49949fc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:48, skipping insertion in model container [2021-11-23 02:30:48,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:30:48" (1/1) ... [2021-11-23 02:30:48,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:30:48,495 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:30:49,476 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0fddb7f-6461-422d-9071-fc677d936d66/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i[158951,158964] [2021-11-23 02:30:51,716 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:30:51,831 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:30:51,998 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0fddb7f-6461-422d-9071-fc677d936d66/sv-benchmarks/c/ldv-validator-v0.6/linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i[158951,158964] [2021-11-23 02:30:52,544 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:30:52,829 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:30:52,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:52 WrapperNode [2021-11-23 02:30:52,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:30:52,830 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:30:52,831 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:30:52,831 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:30:52,838 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:52" (1/1) ... [2021-11-23 02:30:53,014 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:52" (1/1) ... [2021-11-23 02:30:53,802 INFO L137 Inliner]: procedures = 488, calls = 4831, calls flagged for inlining = 239, calls inlined = 220, statements flattened = 9739 [2021-11-23 02:30:53,803 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:30:53,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:30:53,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:30:53,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:30:53,815 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:52" (1/1) ... [2021-11-23 02:30:53,815 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:52" (1/1) ... [2021-11-23 02:30:54,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:52" (1/1) ... [2021-11-23 02:30:54,085 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:52" (1/1) ... [2021-11-23 02:30:54,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:52" (1/1) ... [2021-11-23 02:30:54,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:52" (1/1) ... [2021-11-23 02:30:55,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:52" (1/1) ... [2021-11-23 02:30:55,242 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:30:55,243 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:30:55,244 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:30:55,244 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:30:55,245 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:52" (1/1) ... [2021-11-23 02:30:55,252 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:30:55,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0fddb7f-6461-422d-9071-fc677d936d66/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:30:55,282 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0fddb7f-6461-422d-9071-fc677d936d66/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:30:55,313 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b0fddb7f-6461-422d-9071-fc677d936d66/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:30:55,332 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2021-11-23 02:30:55,333 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2021-11-23 02:30:55,333 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_urb_cleanup [2021-11-23 02:30:55,333 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_urb_cleanup [2021-11-23 02:30:55,334 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-11-23 02:30:55,334 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-11-23 02:30:55,334 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-23 02:30:55,334 INFO L130 BoogieDeclarations]: Found specification of procedure pm_alsa_resume [2021-11-23 02:30:55,334 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_alsa_resume [2021-11-23 02:30:55,334 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2021-11-23 02:30:55,335 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2021-11-23 02:30:55,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-23 02:30:55,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-23 02:30:55,335 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_1 [2021-11-23 02:30:55,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_1 [2021-11-23 02:30:55,335 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2021-11-23 02:30:55,335 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2021-11-23 02:30:55,336 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_stop_streaming [2021-11-23 02:30:55,336 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_stop_streaming [2021-11-23 02:30:55,336 INFO L130 BoogieDeclarations]: Found specification of procedure vdev_init [2021-11-23 02:30:55,336 INFO L138 BoogieDeclarations]: Found implementation of procedure vdev_init [2021-11-23 02:30:55,336 INFO L130 BoogieDeclarations]: Found specification of procedure pd_vidioc_s_fmt [2021-11-23 02:30:55,336 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_vidioc_s_fmt [2021-11-23 02:30:55,337 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_check_mode_dvbt [2021-11-23 02:30:55,337 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_check_mode_dvbt [2021-11-23 02:30:55,337 INFO L130 BoogieDeclarations]: Found specification of procedure set_frequency___0 [2021-11-23 02:30:55,337 INFO L138 BoogieDeclarations]: Found implementation of procedure set_frequency___0 [2021-11-23 02:30:55,337 INFO L130 BoogieDeclarations]: Found specification of procedure set_tuner_mode [2021-11-23 02:30:55,337 INFO L138 BoogieDeclarations]: Found implementation of procedure set_tuner_mode [2021-11-23 02:30:55,338 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fm_close [2021-11-23 02:30:55,338 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fm_close [2021-11-23 02:30:55,338 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-11-23 02:30:55,338 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-11-23 02:30:55,338 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_pointer [2021-11-23 02:30:55,339 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_pointer [2021-11-23 02:30:55,339 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_to_vmalloc [2021-11-23 02:30:55,339 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_to_vmalloc [2021-11-23 02:30:55,339 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-23 02:30:55,339 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-23 02:30:55,339 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2021-11-23 02:30:55,340 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2021-11-23 02:30:55,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 02:30:55,340 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_trigger [2021-11-23 02:30:55,340 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_trigger [2021-11-23 02:30:55,340 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_check_mode_radio [2021-11-23 02:30:55,340 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_check_mode_radio [2021-11-23 02:30:55,341 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_pcm_close [2021-11-23 02:30:55,341 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_pcm_close [2021-11-23 02:30:55,341 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-23 02:30:55,342 INFO L130 BoogieDeclarations]: Found specification of procedure check_control_id [2021-11-23 02:30:55,343 INFO L138 BoogieDeclarations]: Found implementation of procedure check_control_id [2021-11-23 02:30:55,343 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-11-23 02:30:55,344 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-11-23 02:30:55,344 INFO L130 BoogieDeclarations]: Found specification of procedure video_ioctl2 [2021-11-23 02:30:55,344 INFO L138 BoogieDeclarations]: Found implementation of procedure video_ioctl2 [2021-11-23 02:30:55,344 INFO L130 BoogieDeclarations]: Found specification of procedure pd_buf_queue [2021-11-23 02:30:55,344 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_buf_queue [2021-11-23 02:30:55,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-23 02:30:55,345 INFO L130 BoogieDeclarations]: Found specification of procedure kref_get [2021-11-23 02:30:55,345 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_get [2021-11-23 02:30:55,345 INFO L130 BoogieDeclarations]: Found specification of procedure set_frequency [2021-11-23 02:30:55,345 INFO L138 BoogieDeclarations]: Found implementation of procedure set_frequency [2021-11-23 02:30:55,345 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_mmap [2021-11-23 02:30:55,345 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_mmap [2021-11-23 02:30:55,346 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2021-11-23 02:30:55,346 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2021-11-23 02:30:55,346 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 02:30:55,346 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-23 02:30:55,346 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-23 02:30:55,346 INFO L130 BoogieDeclarations]: Found specification of procedure usb_transfer_stop [2021-11-23 02:30:55,346 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_transfer_stop [2021-11-23 02:30:55,347 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-23 02:30:55,347 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-23 02:30:55,348 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_frontend [2021-11-23 02:30:55,348 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_frontend [2021-11-23 02:30:55,348 INFO L130 BoogieDeclarations]: Found specification of procedure is_working [2021-11-23 02:30:55,348 INFO L138 BoogieDeclarations]: Found implementation of procedure is_working [2021-11-23 02:30:55,348 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2021-11-23 02:30:55,348 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2021-11-23 02:30:55,348 INFO L130 BoogieDeclarations]: Found specification of procedure pm_alsa_suspend [2021-11-23 02:30:55,349 INFO L138 BoogieDeclarations]: Found implementation of procedure pm_alsa_suspend [2021-11-23 02:30:55,349 INFO L130 BoogieDeclarations]: Found specification of procedure fire_audio_urb [2021-11-23 02:30:55,349 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_audio_urb [2021-11-23 02:30:55,350 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2021-11-23 02:30:55,350 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2021-11-23 02:30:55,350 INFO L130 BoogieDeclarations]: Found specification of procedure start_video_stream [2021-11-23 02:30:55,350 INFO L138 BoogieDeclarations]: Found implementation of procedure start_video_stream [2021-11-23 02:30:55,350 INFO L130 BoogieDeclarations]: Found specification of procedure video_get_drvdata [2021-11-23 02:30:55,350 INFO L138 BoogieDeclarations]: Found implementation of procedure video_get_drvdata [2021-11-23 02:30:55,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 02:30:55,351 INFO L130 BoogieDeclarations]: Found specification of procedure get_audio_std [2021-11-23 02:30:55,352 INFO L138 BoogieDeclarations]: Found implementation of procedure get_audio_std [2021-11-23 02:30:55,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:30:55,352 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_poseidon [2021-11-23 02:30:55,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_poseidon [2021-11-23 02:30:55,353 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-23 02:30:55,353 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-23 02:30:55,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-23 02:30:55,353 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-23 02:30:55,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_poseidon [2021-11-23 02:30:55,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_poseidon [2021-11-23 02:30:55,354 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_capture_open [2021-11-23 02:30:55,354 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_capture_open [2021-11-23 02:30:55,354 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_signal_strength [2021-11-23 02:30:55,354 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_signal_strength [2021-11-23 02:30:55,354 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_release [2021-11-23 02:30:55,355 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_release [2021-11-23 02:30:55,355 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_open [2021-11-23 02:30:55,355 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_open [2021-11-23 02:30:55,355 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:30:55,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-23 02:30:55,356 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2021-11-23 02:30:55,359 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2021-11-23 02:30:55,359 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2021-11-23 02:30:55,359 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2021-11-23 02:30:55,359 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-11-23 02:30:55,361 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-11-23 02:30:55,361 INFO L130 BoogieDeclarations]: Found specification of procedure send_set_req [2021-11-23 02:30:55,361 INFO L138 BoogieDeclarations]: Found implementation of procedure send_set_req [2021-11-23 02:30:55,362 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-11-23 02:30:55,362 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-11-23 02:30:55,368 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_iolock [2021-11-23 02:30:55,368 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_iolock [2021-11-23 02:30:55,368 INFO L130 BoogieDeclarations]: Found specification of procedure init_copy [2021-11-23 02:30:55,369 INFO L138 BoogieDeclarations]: Found implementation of procedure init_copy [2021-11-23 02:30:55,369 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout [2021-11-23 02:30:55,369 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout [2021-11-23 02:30:55,369 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_bulk_urbs_generic [2021-11-23 02:30:55,369 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_bulk_urbs_generic [2021-11-23 02:30:55,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:30:55,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:30:55,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-23 02:30:55,370 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-23 02:30:55,370 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-11-23 02:30:55,370 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-11-23 02:30:55,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-23 02:30:55,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-23 02:30:55,370 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-23 02:30:55,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-23 02:30:55,371 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2021-11-23 02:30:55,371 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2021-11-23 02:30:55,371 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2021-11-23 02:30:55,371 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2021-11-23 02:30:55,371 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_pd_get_page [2021-11-23 02:30:55,371 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_pd_get_page [2021-11-23 02:30:55,371 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-23 02:30:55,372 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-23 02:30:55,372 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2021-11-23 02:30:55,372 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2021-11-23 02:30:55,372 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urb [2021-11-23 02:30:55,372 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urb [2021-11-23 02:30:55,372 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2021-11-23 02:30:55,372 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2021-11-23 02:30:55,373 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_get_fe [2021-11-23 02:30:55,373 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_get_fe [2021-11-23 02:30:55,373 INFO L130 BoogieDeclarations]: Found specification of procedure pd_dvb_usb_device_cleanup [2021-11-23 02:30:55,373 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_dvb_usb_device_cleanup [2021-11-23 02:30:55,373 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_start_streaming [2021-11-23 02:30:55,373 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_start_streaming [2021-11-23 02:30:55,373 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-11-23 02:30:55,373 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-11-23 02:30:55,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-11-23 02:30:55,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-11-23 02:30:55,374 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_mmap_free [2021-11-23 02:30:55,374 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_mmap_free [2021-11-23 02:30:55,374 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2021-11-23 02:30:55,374 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2021-11-23 02:30:55,374 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-23 02:30:55,375 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-23 02:30:55,375 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_intf [2021-11-23 02:30:55,375 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_intf [2021-11-23 02:30:55,375 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-11-23 02:30:55,375 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-11-23 02:30:55,375 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2021-11-23 02:30:55,375 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2021-11-23 02:30:55,375 INFO L130 BoogieDeclarations]: Found specification of procedure pd_vidioc_s_tuner [2021-11-23 02:30:55,376 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_vidioc_s_tuner [2021-11-23 02:30:55,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 02:30:55,376 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-11-23 02:30:55,376 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-11-23 02:30:55,376 INFO L130 BoogieDeclarations]: Found specification of procedure set_std [2021-11-23 02:30:55,376 INFO L138 BoogieDeclarations]: Found implementation of procedure set_std [2021-11-23 02:30:55,376 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-23 02:30:55,377 INFO L130 BoogieDeclarations]: Found specification of procedure free_all_urb_generic [2021-11-23 02:30:55,377 INFO L138 BoogieDeclarations]: Found implementation of procedure free_all_urb_generic [2021-11-23 02:30:55,377 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_ts_bus_ctrl [2021-11-23 02:30:55,377 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_ts_bus_ctrl [2021-11-23 02:30:55,377 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_exit [2021-11-23 02:30:55,377 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_exit [2021-11-23 02:30:55,377 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fm_open [2021-11-23 02:30:55,378 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fm_open [2021-11-23 02:30:55,378 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2021-11-23 02:30:55,378 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2021-11-23 02:30:55,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-23 02:30:55,378 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-23 02:30:55,378 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-23 02:30:55,378 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_status [2021-11-23 02:30:55,378 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_status [2021-11-23 02:30:55,379 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_stop [2021-11-23 02:30:55,379 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_stop [2021-11-23 02:30:55,379 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-23 02:30:55,379 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-23 02:30:55,379 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_release [2021-11-23 02:30:55,379 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_release [2021-11-23 02:30:55,379 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-11-23 02:30:55,380 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-11-23 02:30:55,380 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-11-23 02:30:55,380 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-11-23 02:30:55,380 INFO L130 BoogieDeclarations]: Found specification of procedure get_pd [2021-11-23 02:30:55,380 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pd [2021-11-23 02:30:55,380 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-23 02:30:55,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-23 02:30:55,381 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_disconnect [2021-11-23 02:30:55,381 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_disconnect [2021-11-23 02:30:55,381 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_poll [2021-11-23 02:30:55,381 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_poll [2021-11-23 02:30:55,381 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-11-23 02:30:55,381 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-11-23 02:30:55,381 INFO L130 BoogieDeclarations]: Found specification of procedure send_get_req [2021-11-23 02:30:55,382 INFO L138 BoogieDeclarations]: Found implementation of procedure send_get_req [2021-11-23 02:30:55,382 INFO L130 BoogieDeclarations]: Found specification of procedure video_register_device [2021-11-23 02:30:55,382 INFO L138 BoogieDeclarations]: Found implementation of procedure video_register_device [2021-11-23 02:30:55,382 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_hw_capture_params [2021-11-23 02:30:55,382 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_hw_capture_params [2021-11-23 02:30:55,382 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-23 02:30:55,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-23 02:30:55,382 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_unc_blocks [2021-11-23 02:30:55,383 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_unc_blocks [2021-11-23 02:30:55,383 INFO L130 BoogieDeclarations]: Found specification of procedure audio_buf_free [2021-11-23 02:30:55,383 INFO L138 BoogieDeclarations]: Found implementation of procedure audio_buf_free [2021-11-23 02:30:55,383 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-23 02:30:55,383 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-23 02:30:55,383 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_get_tune_settings [2021-11-23 02:30:55,383 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_get_tune_settings [2021-11-23 02:30:55,384 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_set_fe [2021-11-23 02:30:55,384 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_set_fe [2021-11-23 02:30:55,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 02:30:55,384 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_hw_capture_free [2021-11-23 02:30:55,385 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_hw_capture_free [2021-11-23 02:30:55,388 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-23 02:30:55,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-23 02:30:55,389 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_resume [2021-11-23 02:30:55,389 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_resume [2021-11-23 02:30:55,389 INFO L130 BoogieDeclarations]: Found specification of procedure pd_video_checkmode [2021-11-23 02:30:55,389 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_video_checkmode [2021-11-23 02:30:55,389 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_input [2021-11-23 02:30:55,389 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_input [2021-11-23 02:30:55,390 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pcm_lib_ioctl [2021-11-23 02:30:55,390 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pcm_lib_ioctl [2021-11-23 02:30:55,391 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2021-11-23 02:30:55,391 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2021-11-23 02:30:55,391 INFO L130 BoogieDeclarations]: Found specification of procedure videobuf_queue_vmalloc_init [2021-11-23 02:30:55,391 INFO L138 BoogieDeclarations]: Found implementation of procedure videobuf_queue_vmalloc_init [2021-11-23 02:30:55,392 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-11-23 02:30:55,392 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-11-23 02:30:55,392 INFO L130 BoogieDeclarations]: Found specification of procedure snd_card_free [2021-11-23 02:30:55,392 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_card_free [2021-11-23 02:30:55,392 INFO L130 BoogieDeclarations]: Found specification of procedure get_autopm_ref [2021-11-23 02:30:55,392 INFO L138 BoogieDeclarations]: Found implementation of procedure get_autopm_ref [2021-11-23 02:30:55,392 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_fe_sleep [2021-11-23 02:30:55,393 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_fe_sleep [2021-11-23 02:30:55,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_device [2021-11-23 02:30:55,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_device [2021-11-23 02:30:55,393 INFO L130 BoogieDeclarations]: Found specification of procedure pd_buf_setup [2021-11-23 02:30:55,393 INFO L138 BoogieDeclarations]: Found implementation of procedure pd_buf_setup [2021-11-23 02:30:55,393 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_video_device [2021-11-23 02:30:55,393 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_video_device [2021-11-23 02:30:55,393 INFO L130 BoogieDeclarations]: Found specification of procedure poseidon_read_ber [2021-11-23 02:30:55,394 INFO L138 BoogieDeclarations]: Found implementation of procedure poseidon_read_ber [2021-11-23 02:30:55,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:30:55,394 INFO L130 BoogieDeclarations]: Found specification of procedure set_debug_mode [2021-11-23 02:30:55,394 INFO L138 BoogieDeclarations]: Found implementation of procedure set_debug_mode [2021-11-23 02:30:55,394 INFO L130 BoogieDeclarations]: Found specification of procedure snd_pd_prepare [2021-11-23 02:30:55,394 INFO L138 BoogieDeclarations]: Found implementation of procedure snd_pd_prepare [2021-11-23 02:30:56,581 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:30:56,585 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:31:05,522 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-23 02:36:40,086 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:36:42,433 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:36:42,434 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 02:36:42,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:36:42 BoogieIcfgContainer [2021-11-23 02:36:42,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:36:42,442 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:36:42,442 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:36:42,446 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:36:42,447 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:30:48" (1/3) ... [2021-11-23 02:36:42,448 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21629b9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:36:42, skipping insertion in model container [2021-11-23 02:36:42,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:30:52" (2/3) ... [2021-11-23 02:36:42,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21629b9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:36:42, skipping insertion in model container [2021-11-23 02:36:42,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:36:42" (3/3) ... [2021-11-23 02:36:42,454 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-stable-4a349aa-1-32_7a-drivers--media--video--tlg2300--poseidon.ko-entry_point.cil.out.i [2021-11-23 02:36:42,465 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:36:42,465 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:36:42,542 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:36:42,551 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 02:36:42,552 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:36:42,638 INFO L276 IsEmpty]: Start isEmpty. Operand has 2009 states, 1256 states have (on average 1.3710191082802548) internal successors, (1722), 1287 states have internal predecessors, (1722), 624 states have call successors, (624), 128 states have call predecessors, (624), 127 states have return successors, (611), 610 states have call predecessors, (611), 611 states have call successors, (611) [2021-11-23 02:36:42,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-23 02:36:42,656 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:36:42,656 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:36:42,658 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:36:42,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:36:42,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1304277382, now seen corresponding path program 1 times [2021-11-23 02:36:42,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:36:42,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030708837] [2021-11-23 02:36:42,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:36:42,676 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:36:43,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:36:43,975 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 02:36:43,975 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:36:43,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030708837] [2021-11-23 02:36:43,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030708837] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:36:43,977 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:36:43,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:36:43,979 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462060126] [2021-11-23 02:36:43,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:36:43,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:36:43,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:36:44,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:36:44,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:36:44,063 INFO L87 Difference]: Start difference. First operand has 2009 states, 1256 states have (on average 1.3710191082802548) internal successors, (1722), 1287 states have internal predecessors, (1722), 624 states have call successors, (624), 128 states have call predecessors, (624), 127 states have return successors, (611), 610 states have call predecessors, (611), 611 states have call successors, (611) Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-23 02:36:46,249 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:36:48,700 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:36:51,948 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:36:53,568 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:36:56,470 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:37:01,130 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:37:04,584 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:37:06,699 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:37:09,429 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:37:10,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:37:10,973 INFO L93 Difference]: Finished difference Result 5956 states and 8983 transitions. [2021-11-23 02:37:10,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:37:10,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 42 [2021-11-23 02:37:10,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:37:11,028 INFO L225 Difference]: With dead ends: 5956 [2021-11-23 02:37:11,028 INFO L226 Difference]: Without dead ends: 3925 [2021-11-23 02:37:11,053 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:37:11,067 INFO L933 BasicCegarLoop]: 3251 mSDtfsCounter, 2844 mSDsluCounter, 2936 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2846 SdHoareTripleChecker+Valid, 5902 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.4s IncrementalHoareTripleChecker+Time [2021-11-23 02:37:11,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2846 Valid, 5902 Invalid, 587 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 579 Invalid, 7 Unknown, 0 Unchecked, 26.4s Time] [2021-11-23 02:37:11,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3925 states. [2021-11-23 02:37:11,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3925 to 3907. [2021-11-23 02:37:11,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3907 states, 2464 states have (on average 1.3603896103896105) internal successors, (3352), 2491 states have internal predecessors, (3352), 1191 states have call successors, (1191), 252 states have call predecessors, (1191), 251 states have return successors, (1185), 1179 states have call predecessors, (1185), 1183 states have call successors, (1185) [2021-11-23 02:37:11,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3907 states to 3907 states and 5728 transitions. [2021-11-23 02:37:11,628 INFO L78 Accepts]: Start accepts. Automaton has 3907 states and 5728 transitions. Word has length 42 [2021-11-23 02:37:11,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:37:11,629 INFO L470 AbstractCegarLoop]: Abstraction has 3907 states and 5728 transitions. [2021-11-23 02:37:11,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-23 02:37:11,629 INFO L276 IsEmpty]: Start isEmpty. Operand 3907 states and 5728 transitions. [2021-11-23 02:37:11,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-23 02:37:11,633 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:37:11,634 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:37:11,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:37:11,634 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:37:11,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:37:11,637 INFO L85 PathProgramCache]: Analyzing trace with hash -1227410900, now seen corresponding path program 1 times [2021-11-23 02:37:11,637 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:37:11,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924163813] [2021-11-23 02:37:11,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:37:11,638 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:37:11,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:37:12,188 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 02:37:12,188 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:37:12,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924163813] [2021-11-23 02:37:12,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924163813] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:37:12,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:37:12,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:37:12,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041923970] [2021-11-23 02:37:12,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:37:12,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:37:12,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:37:12,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:37:12,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:37:12,192 INFO L87 Difference]: Start difference. First operand 3907 states and 5728 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-23 02:37:14,333 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:37:18,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:37:21,194 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:37:23,669 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:37:30,089 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:37:32,506 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:37:35,707 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:37:36,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:37:36,168 INFO L93 Difference]: Finished difference Result 11598 states and 17016 transitions. [2021-11-23 02:37:36,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:37:36,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 42 [2021-11-23 02:37:36,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:37:36,255 INFO L225 Difference]: With dead ends: 11598 [2021-11-23 02:37:36,255 INFO L226 Difference]: Without dead ends: 7700 [2021-11-23 02:37:36,279 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:37:36,280 INFO L933 BasicCegarLoop]: 3231 mSDtfsCounter, 2787 mSDsluCounter, 2891 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 3 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2793 SdHoareTripleChecker+Valid, 5841 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:37:36,281 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2793 Valid, 5841 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 585 Invalid, 7 Unknown, 0 Unchecked, 23.6s Time] [2021-11-23 02:37:36,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7700 states. [2021-11-23 02:37:36,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7700 to 7694. [2021-11-23 02:37:36,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7694 states, 4867 states have (on average 1.3618245325662626) internal successors, (6628), 4913 states have internal predecessors, (6628), 2328 states have call successors, (2328), 499 states have call predecessors, (2328), 498 states have return successors, (2334), 2313 states have call predecessors, (2334), 2320 states have call successors, (2334) [2021-11-23 02:37:36,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7694 states to 7694 states and 11290 transitions. [2021-11-23 02:37:36,737 INFO L78 Accepts]: Start accepts. Automaton has 7694 states and 11290 transitions. Word has length 42 [2021-11-23 02:37:36,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:37:36,738 INFO L470 AbstractCegarLoop]: Abstraction has 7694 states and 11290 transitions. [2021-11-23 02:37:36,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-23 02:37:36,739 INFO L276 IsEmpty]: Start isEmpty. Operand 7694 states and 11290 transitions. [2021-11-23 02:37:36,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-11-23 02:37:36,747 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:37:36,748 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:37:36,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 02:37:36,748 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:37:36,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:37:36,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1105081888, now seen corresponding path program 1 times [2021-11-23 02:37:36,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:37:36,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268661875] [2021-11-23 02:37:36,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:37:36,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:37:37,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:37:37,338 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 02:37:37,338 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:37:37,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268661875] [2021-11-23 02:37:37,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268661875] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:37:37,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:37:37,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:37:37,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716535318] [2021-11-23 02:37:37,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:37:37,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:37:37,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:37:37,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:37:37,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:37:37,341 INFO L87 Difference]: Start difference. First operand 7694 states and 11290 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, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-23 02:37:39,484 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:37:42,717 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:37:45,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:37:48,211 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:37:54,019 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:37:56,155 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:37:59,030 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:38:00,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:38:00,610 INFO L93 Difference]: Finished difference Result 22918 states and 33625 transitions. [2021-11-23 02:38:00,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:38:00,611 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, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 48 [2021-11-23 02:38:00,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:38:00,743 INFO L225 Difference]: With dead ends: 22918 [2021-11-23 02:38:00,750 INFO L226 Difference]: Without dead ends: 15233 [2021-11-23 02:38:00,801 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:38:00,805 INFO L933 BasicCegarLoop]: 3233 mSDtfsCounter, 2772 mSDsluCounter, 2896 mSDsCounter, 0 mSdLazyCounter, 593 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2778 SdHoareTripleChecker+Valid, 5846 SdHoareTripleChecker+Invalid, 601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 593 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:38:00,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2778 Valid, 5846 Invalid, 601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 593 Invalid, 7 Unknown, 0 Unchecked, 22.9s Time] [2021-11-23 02:38:00,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15233 states. [2021-11-23 02:38:01,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15233 to 15214. [2021-11-23 02:38:01,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15214 states, 9627 states have (on average 1.362002700737509) internal successors, (13112), 9713 states have internal predecessors, (13112), 4590 states have call successors, (4590), 997 states have call predecessors, (4590), 996 states have return successors, (4620), 4567 states have call predecessors, (4620), 4582 states have call successors, (4620) [2021-11-23 02:38:01,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15214 states to 15214 states and 22322 transitions. [2021-11-23 02:38:01,727 INFO L78 Accepts]: Start accepts. Automaton has 15214 states and 22322 transitions. Word has length 48 [2021-11-23 02:38:01,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:38:01,728 INFO L470 AbstractCegarLoop]: Abstraction has 15214 states and 22322 transitions. [2021-11-23 02:38:01,729 INFO L471 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, (7), 2 states have call predecessors, (7), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-11-23 02:38:01,729 INFO L276 IsEmpty]: Start isEmpty. Operand 15214 states and 22322 transitions. [2021-11-23 02:38:01,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-11-23 02:38:01,733 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:38:01,733 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:38:01,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 02:38:01,734 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:38:01,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:38:01,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1657677048, now seen corresponding path program 1 times [2021-11-23 02:38:01,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:38:01,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788349930] [2021-11-23 02:38:01,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:38:01,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:38:01,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:38:02,202 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-11-23 02:38:02,202 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:38:02,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788349930] [2021-11-23 02:38:02,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788349930] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:38:02,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:38:02,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:38:02,203 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900069045] [2021-11-23 02:38:02,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:38:02,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:38:02,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:38:02,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:38:02,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:38:02,204 INFO L87 Difference]: Start difference. First operand 15214 states and 22322 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-23 02:38:04,346 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:38:08,282 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:38:10,432 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:38:14,217 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:38:16,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:38:19,835 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:38:25,095 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:38:27,299 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:38:27,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:38:27,979 INFO L93 Difference]: Finished difference Result 41358 states and 60673 transitions. [2021-11-23 02:38:27,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:38:27,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 63 [2021-11-23 02:38:27,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:38:28,132 INFO L225 Difference]: With dead ends: 41358 [2021-11-23 02:38:28,132 INFO L226 Difference]: Without dead ends: 26153 [2021-11-23 02:38:28,223 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:38:28,224 INFO L933 BasicCegarLoop]: 3479 mSDtfsCounter, 2091 mSDsluCounter, 2890 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 2 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2094 SdHoareTripleChecker+Valid, 6092 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.2s IncrementalHoareTripleChecker+Time [2021-11-23 02:38:28,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2094 Valid, 6092 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 657 Invalid, 7 Unknown, 0 Unchecked, 25.2s Time] [2021-11-23 02:38:28,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26153 states. [2021-11-23 02:38:29,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26153 to 26106. [2021-11-23 02:38:29,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26106 states, 16643 states have (on average 1.3709066874962446) internal successors, (22816), 16777 states have internal predecessors, (22816), 7718 states have call successors, (7718), 1745 states have call predecessors, (7718), 1744 states have return successors, (7772), 7671 states have call predecessors, (7772), 7710 states have call successors, (7772) [2021-11-23 02:38:29,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26106 states to 26106 states and 38306 transitions. [2021-11-23 02:38:29,788 INFO L78 Accepts]: Start accepts. Automaton has 26106 states and 38306 transitions. Word has length 63 [2021-11-23 02:38:29,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:38:29,789 INFO L470 AbstractCegarLoop]: Abstraction has 26106 states and 38306 transitions. [2021-11-23 02:38:29,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-23 02:38:29,790 INFO L276 IsEmpty]: Start isEmpty. Operand 26106 states and 38306 transitions. [2021-11-23 02:38:29,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-23 02:38:29,793 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:38:29,793 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:38:29,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-23 02:38:29,793 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:38:29,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:38:29,794 INFO L85 PathProgramCache]: Analyzing trace with hash -285883661, now seen corresponding path program 1 times [2021-11-23 02:38:29,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:38:29,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250252446] [2021-11-23 02:38:29,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:38:29,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:38:29,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:38:30,280 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:38:30,280 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:38:30,281 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250252446] [2021-11-23 02:38:30,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250252446] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:38:30,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:38:30,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:38:30,281 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830728845] [2021-11-23 02:38:30,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:38:30,282 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:38:30,282 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:38:30,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:38:30,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:38:30,283 INFO L87 Difference]: Start difference. First operand 26106 states and 38306 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-23 02:38:32,433 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:38:35,391 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:38:39,277 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:38:43,329 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:38:48,411 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:38:50,726 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:38:52,790 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:38:55,530 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:38:55,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:38:55,709 INFO L93 Difference]: Finished difference Result 70309 states and 103505 transitions. [2021-11-23 02:38:55,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:38:55,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 58 [2021-11-23 02:38:55,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:38:56,267 INFO L225 Difference]: With dead ends: 70309 [2021-11-23 02:38:56,267 INFO L226 Difference]: Without dead ends: 44212 [2021-11-23 02:38:56,361 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:38:56,362 INFO L933 BasicCegarLoop]: 3056 mSDtfsCounter, 2372 mSDsluCounter, 2620 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 5 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2374 SdHoareTripleChecker+Valid, 5420 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.3s IncrementalHoareTripleChecker+Time [2021-11-23 02:38:56,363 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2374 Valid, 5420 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 550 Invalid, 7 Unknown, 0 Unchecked, 24.3s Time] [2021-11-23 02:38:56,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44212 states. [2021-11-23 02:38:58,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44212 to 44128. [2021-11-23 02:38:59,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44128 states, 28641 states have (on average 1.3878007052826369) internal successors, (39748), 29244 states have internal predecessors, (39748), 12440 states have call successors, (12440), 3194 states have call predecessors, (12440), 3046 states have return successors, (12806), 11817 states have call predecessors, (12806), 12430 states have call successors, (12806) [2021-11-23 02:38:59,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44128 states to 44128 states and 64994 transitions. [2021-11-23 02:38:59,391 INFO L78 Accepts]: Start accepts. Automaton has 44128 states and 64994 transitions. Word has length 58 [2021-11-23 02:38:59,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:38:59,392 INFO L470 AbstractCegarLoop]: Abstraction has 44128 states and 64994 transitions. [2021-11-23 02:38:59,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-23 02:38:59,392 INFO L276 IsEmpty]: Start isEmpty. Operand 44128 states and 64994 transitions. [2021-11-23 02:38:59,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-23 02:38:59,396 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:38:59,396 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:38:59,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-23 02:38:59,397 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:38:59,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:38:59,398 INFO L85 PathProgramCache]: Analyzing trace with hash -273533548, now seen corresponding path program 1 times [2021-11-23 02:38:59,398 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:38:59,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770332154] [2021-11-23 02:38:59,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:38:59,399 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:38:59,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:00,255 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:39:00,255 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:00,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770332154] [2021-11-23 02:39:00,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770332154] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:00,256 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:00,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:39:00,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812806712] [2021-11-23 02:39:00,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:00,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:39:00,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:00,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:39:00,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:39:00,258 INFO L87 Difference]: Start difference. First operand 44128 states and 64994 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-23 02:39:02,428 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:39:05,685 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:39:09,580 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:39:14,984 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:39:17,375 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:39:20,428 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:39:24,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:39:27,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:39:27,564 INFO L93 Difference]: Finished difference Result 132260 states and 194853 transitions. [2021-11-23 02:39:27,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:39:27,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 59 [2021-11-23 02:39:27,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:39:28,074 INFO L225 Difference]: With dead ends: 132260 [2021-11-23 02:39:28,074 INFO L226 Difference]: Without dead ends: 88141 [2021-11-23 02:39:28,221 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:39:28,222 INFO L933 BasicCegarLoop]: 3229 mSDtfsCounter, 2854 mSDsluCounter, 2892 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 3 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2858 SdHoareTripleChecker+Valid, 5839 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.9s IncrementalHoareTripleChecker+Time [2021-11-23 02:39:28,222 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2858 Valid, 5839 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 574 Invalid, 7 Unknown, 0 Unchecked, 24.9s Time] [2021-11-23 02:39:28,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88141 states. [2021-11-23 02:39:32,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88141 to 88082. [2021-11-23 02:39:32,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88082 states, 57188 states have (on average 1.3880884101559767) internal successors, (79382), 58389 states have internal predecessors, (79382), 24825 states have call successors, (24825), 6363 states have call predecessors, (24825), 6068 states have return successors, (25574), 23585 states have call predecessors, (25574), 24814 states have call successors, (25574) [2021-11-23 02:39:33,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88082 states to 88082 states and 129781 transitions. [2021-11-23 02:39:33,588 INFO L78 Accepts]: Start accepts. Automaton has 88082 states and 129781 transitions. Word has length 59 [2021-11-23 02:39:33,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:39:33,589 INFO L470 AbstractCegarLoop]: Abstraction has 88082 states and 129781 transitions. [2021-11-23 02:39:33,589 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-23 02:39:33,589 INFO L276 IsEmpty]: Start isEmpty. Operand 88082 states and 129781 transitions. [2021-11-23 02:39:33,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-23 02:39:33,592 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:39:33,592 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:39:33,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-23 02:39:33,593 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:39:33,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:39:33,594 INFO L85 PathProgramCache]: Analyzing trace with hash 109324822, now seen corresponding path program 1 times [2021-11-23 02:39:33,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:39:33,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882198044] [2021-11-23 02:39:33,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:39:33,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:39:33,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:39:34,175 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:39:34,175 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:39:34,176 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882198044] [2021-11-23 02:39:34,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882198044] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:39:34,176 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:39:34,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:39:34,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666466380] [2021-11-23 02:39:34,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:39:34,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:39:34,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:39:34,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:39:34,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:39:34,178 INFO L87 Difference]: Start difference. First operand 88082 states and 129781 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-23 02:39:36,357 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:39:38,695 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:39:42,401 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:39:44,859 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:39:47,311 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:39:49,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:39:52,023 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:39:57,596 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:40:00,173 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:40:03,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:40:03,732 INFO L93 Difference]: Finished difference Result 115971 states and 170181 transitions. [2021-11-23 02:40:03,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:40:03,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2021-11-23 02:40:03,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:40:04,724 INFO L225 Difference]: With dead ends: 115971 [2021-11-23 02:40:04,725 INFO L226 Difference]: Without dead ends: 115968 [2021-11-23 02:40:04,780 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:40:04,782 INFO L933 BasicCegarLoop]: 3234 mSDtfsCounter, 2846 mSDsluCounter, 2901 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2850 SdHoareTripleChecker+Valid, 5852 SdHoareTripleChecker+Invalid, 578 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.5s IncrementalHoareTripleChecker+Time [2021-11-23 02:40:04,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2850 Valid, 5852 Invalid, 578 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 570 Invalid, 7 Unknown, 0 Unchecked, 27.5s Time] [2021-11-23 02:40:04,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115968 states. [2021-11-23 02:40:09,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115968 to 115941. [2021-11-23 02:40:09,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115941 states, 74917 states have (on average 1.3824232150246272) internal successors, (103567), 76273 states have internal predecessors, (103567), 32885 states have call successors, (32885), 8439 states have call predecessors, (32885), 8138 states have return successors, (33698), 31588 states have call predecessors, (33698), 32874 states have call successors, (33698) [2021-11-23 02:40:09,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115941 states to 115941 states and 170150 transitions. [2021-11-23 02:40:09,940 INFO L78 Accepts]: Start accepts. Automaton has 115941 states and 170150 transitions. Word has length 60 [2021-11-23 02:40:09,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:40:09,941 INFO L470 AbstractCegarLoop]: Abstraction has 115941 states and 170150 transitions. [2021-11-23 02:40:09,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-23 02:40:09,941 INFO L276 IsEmpty]: Start isEmpty. Operand 115941 states and 170150 transitions. [2021-11-23 02:40:09,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-11-23 02:40:09,944 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:40:09,945 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:40:09,945 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-23 02:40:09,945 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:40:09,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:40:09,949 INFO L85 PathProgramCache]: Analyzing trace with hash -906962729, now seen corresponding path program 1 times [2021-11-23 02:40:09,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:40:09,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280062580] [2021-11-23 02:40:09,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:40:09,950 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:40:10,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:40:10,798 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:40:10,799 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:40:10,799 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280062580] [2021-11-23 02:40:10,799 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280062580] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:40:10,799 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:40:10,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:40:10,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842479143] [2021-11-23 02:40:10,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:40:10,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:40:10,800 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:40:10,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:40:10,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:40:10,801 INFO L87 Difference]: Start difference. First operand 115941 states and 170150 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-23 02:40:12,931 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:40:14,807 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:40:17,155 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:40:20,090 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:40:22,521 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:40:25,185 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:40:26,721 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:40:31,994 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:40:36,524 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:40:38,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:40:38,024 INFO L93 Difference]: Finished difference Result 203991 states and 299897 transitions. [2021-11-23 02:40:38,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:40:38,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 61 [2021-11-23 02:40:38,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:40:39,002 INFO L225 Difference]: With dead ends: 203991 [2021-11-23 02:40:39,002 INFO L226 Difference]: Without dead ends: 203988 [2021-11-23 02:40:39,068 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:40:39,069 INFO L933 BasicCegarLoop]: 3245 mSDtfsCounter, 2854 mSDsluCounter, 2904 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 1 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2860 SdHoareTripleChecker+Valid, 5866 SdHoareTripleChecker+Invalid, 582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.1s IncrementalHoareTripleChecker+Time [2021-11-23 02:40:39,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2860 Valid, 5866 Invalid, 582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 575 Invalid, 6 Unknown, 0 Unchecked, 23.1s Time] [2021-11-23 02:40:39,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203988 states. [2021-11-23 02:40:46,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203988 to 203947. [2021-11-23 02:40:47,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203947 states, 132057 states have (on average 1.3849701265362684) internal successors, (182895), 134623 states have internal predecessors, (182895), 57687 states have call successors, (57687), 14799 states have call predecessors, (57687), 14202 states have return successors, (59268), 55140 states have call predecessors, (59268), 57676 states have call successors, (59268) [2021-11-23 02:40:48,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203947 states to 203947 states and 299850 transitions. [2021-11-23 02:40:48,580 INFO L78 Accepts]: Start accepts. Automaton has 203947 states and 299850 transitions. Word has length 61 [2021-11-23 02:40:48,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:40:48,580 INFO L470 AbstractCegarLoop]: Abstraction has 203947 states and 299850 transitions. [2021-11-23 02:40:48,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-23 02:40:48,581 INFO L276 IsEmpty]: Start isEmpty. Operand 203947 states and 299850 transitions. [2021-11-23 02:40:48,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-23 02:40:48,584 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:40:48,584 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:40:48,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-23 02:40:48,585 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:40:48,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:40:48,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1947866425, now seen corresponding path program 1 times [2021-11-23 02:40:48,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:40:48,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439296265] [2021-11-23 02:40:48,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:40:48,586 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:40:49,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:40:49,519 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-11-23 02:40:49,519 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:40:49,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439296265] [2021-11-23 02:40:49,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439296265] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:40:49,519 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:40:49,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:40:49,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13762095] [2021-11-23 02:40:49,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:40:49,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:40:49,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:40:49,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:40:49,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:40:49,522 INFO L87 Difference]: Start difference. First operand 203947 states and 299850 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-23 02:40:51,677 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:40:54,457 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:40:57,627 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:41:00,085 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:41:02,654 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:41:09,696 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:41:15,841 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:41:17,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:41:17,304 INFO L93 Difference]: Finished difference Result 203992 states and 299897 transitions. [2021-11-23 02:41:17,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 02:41:17,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 62 [2021-11-23 02:41:17,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:41:18,443 INFO L225 Difference]: With dead ends: 203992 [2021-11-23 02:41:18,443 INFO L226 Difference]: Without dead ends: 203983 [2021-11-23 02:41:18,515 INFO L932 BasicCegarLoop]: 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 [2021-11-23 02:41:18,516 INFO L933 BasicCegarLoop]: 3246 mSDtfsCounter, 2851 mSDsluCounter, 2907 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 0 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2857 SdHoareTripleChecker+Valid, 5870 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.6s IncrementalHoareTripleChecker+Time [2021-11-23 02:41:18,516 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2857 Valid, 5870 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 573 Invalid, 7 Unknown, 0 Unchecked, 23.6s Time] [2021-11-23 02:41:18,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203983 states. [2021-11-23 02:41:26,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203983 to 203942. [2021-11-23 02:41:26,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203942 states, 132052 states have (on average 1.3848862569290885) internal successors, (182877), 134618 states have internal predecessors, (182877), 57687 states have call successors, (57687), 14799 states have call predecessors, (57687), 14202 states have return successors, (59268), 55140 states have call predecessors, (59268), 57676 states have call successors, (59268) [2021-11-23 02:41:27,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203942 states to 203942 states and 299832 transitions. [2021-11-23 02:41:27,769 INFO L78 Accepts]: Start accepts. Automaton has 203942 states and 299832 transitions. Word has length 62 [2021-11-23 02:41:27,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:41:27,770 INFO L470 AbstractCegarLoop]: Abstraction has 203942 states and 299832 transitions. [2021-11-23 02:41:27,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-11-23 02:41:27,770 INFO L276 IsEmpty]: Start isEmpty. Operand 203942 states and 299832 transitions. [2021-11-23 02:41:27,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-23 02:41:27,776 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:41:27,777 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:41:27,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-23 02:41:27,777 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:41:27,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:41:27,778 INFO L85 PathProgramCache]: Analyzing trace with hash 1396797980, now seen corresponding path program 1 times [2021-11-23 02:41:27,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:41:27,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214734038] [2021-11-23 02:41:27,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:41:27,779 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:41:27,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:41:28,133 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2021-11-23 02:41:28,133 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-23 02:41:28,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214734038] [2021-11-23 02:41:28,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214734038] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 02:41:28,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:41:28,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 02:41:28,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576253610] [2021-11-23 02:41:28,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 02:41:28,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 02:41:28,135 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-23 02:41:28,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 02:41:28,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 02:41:28,136 INFO L87 Difference]: Start difference. First operand 203942 states and 299832 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-23 02:41:30,248 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:41:33,184 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:41:36,638 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-23 02:41:38,140 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2021-11-23 02:41:39,727 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []