./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8187--rtl8187.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8986114b-5c66-4341-bb3f-50b171d9baba/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8986114b-5c66-4341-bb3f-50b171d9baba/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8986114b-5c66-4341-bb3f-50b171d9baba/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8986114b-5c66-4341-bb3f-50b171d9baba/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8187--rtl8187.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8986114b-5c66-4341-bb3f-50b171d9baba/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8986114b-5c66-4341-bb3f-50b171d9baba/bin/utaipan-verify-nQ1chXbOIh --witnessprinter.witness.filename witness --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 f81d244572c9a77eee348ee40397ea85f2dfad22a6619aa4d31ee137ff878aa4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 17:16:57,511 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 17:16:57,575 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8986114b-5c66-4341-bb3f-50b171d9baba/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 17:16:57,580 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 17:16:57,580 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 17:16:57,604 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 17:16:57,604 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 17:16:57,605 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 17:16:57,605 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 17:16:57,606 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 17:16:57,607 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 17:16:57,607 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 17:16:57,608 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 17:16:57,609 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 17:16:57,609 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 17:16:57,610 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 17:16:57,610 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 17:16:57,611 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 17:16:57,611 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 17:16:57,612 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 17:16:57,613 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 17:16:57,613 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 17:16:57,614 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 17:16:57,615 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 17:16:57,615 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 17:16:57,616 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 17:16:57,616 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 17:16:57,617 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 17:16:57,617 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 17:16:57,617 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 17:16:57,617 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 17:16:57,618 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 17:16:57,618 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 17:16:57,619 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 17:16:57,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:16:57,619 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 17:16:57,619 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 17:16:57,620 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 17:16:57,620 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 17:16:57,620 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 17:16:57,620 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 17:16:57,621 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 17:16:57,621 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 17:16:57,621 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 17:16:57,621 INFO L153 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_8986114b-5c66-4341-bb3f-50b171d9baba/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8986114b-5c66-4341-bb3f-50b171d9baba/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f81d244572c9a77eee348ee40397ea85f2dfad22a6619aa4d31ee137ff878aa4 [2023-12-02 17:16:57,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 17:16:57,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 17:16:57,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 17:16:57,843 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 17:16:57,843 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 17:16:57,844 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8986114b-5c66-4341-bb3f-50b171d9baba/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8187--rtl8187.ko-entry_point.cil.out.i [2023-12-02 17:17:00,578 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 17:17:01,146 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 17:17:01,147 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8986114b-5c66-4341-bb3f-50b171d9baba/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8187--rtl8187.ko-entry_point.cil.out.i [2023-12-02 17:17:01,187 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8986114b-5c66-4341-bb3f-50b171d9baba/bin/utaipan-verify-nQ1chXbOIh/data/5f2fe8b0f/6270c64a6df5404f9f228e8c592c0dd5/FLAG954c92347 [2023-12-02 17:17:01,202 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8986114b-5c66-4341-bb3f-50b171d9baba/bin/utaipan-verify-nQ1chXbOIh/data/5f2fe8b0f/6270c64a6df5404f9f228e8c592c0dd5 [2023-12-02 17:17:01,204 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 17:17:01,206 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 17:17:01,207 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 17:17:01,207 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 17:17:01,212 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 17:17:01,213 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:17:01" (1/1) ... [2023-12-02 17:17:01,214 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47957437 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:01, skipping insertion in model container [2023-12-02 17:17:01,214 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 05:17:01" (1/1) ... [2023-12-02 17:17:01,370 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 17:17:02,399 WARN L240 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_8986114b-5c66-4341-bb3f-50b171d9baba/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8187--rtl8187.ko-entry_point.cil.out.i[205376,205389] [2023-12-02 17:17:03,639 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:17:03,706 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 17:17:03,842 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bsrl %1,%0": "=r" (r): "rm" (x), "0" (-1)); [6923] [2023-12-02 17:17:03,854 WARN L240 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_8986114b-5c66-4341-bb3f-50b171d9baba/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8187--rtl8187.ko-entry_point.cil.out.i[205376,205389] [2023-12-02 17:17:04,125 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 17:17:04,214 WARN L675 CHandler]: The function __VERIFIER_nondet_u16 is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:17:04,214 WARN L675 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:17:04,214 WARN L675 CHandler]: The function __VERIFIER_nondet_u32 is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 17:17:04,221 INFO L206 MainTranslator]: Completed translation [2023-12-02 17:17:04,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:04 WrapperNode [2023-12-02 17:17:04,222 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 17:17:04,222 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 17:17:04,223 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 17:17:04,223 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 17:17:04,229 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:04" (1/1) ... [2023-12-02 17:17:04,323 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:04" (1/1) ... [2023-12-02 17:17:04,591 INFO L138 Inliner]: procedures = 307, calls = 3914, calls flagged for inlining = 137, calls inlined = 133, statements flattened = 7164 [2023-12-02 17:17:04,592 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 17:17:04,593 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 17:17:04,593 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 17:17:04,593 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 17:17:04,602 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:04" (1/1) ... [2023-12-02 17:17:04,602 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:04" (1/1) ... [2023-12-02 17:17:04,650 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:04" (1/1) ... [2023-12-02 17:17:04,651 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:04" (1/1) ... [2023-12-02 17:17:04,783 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:04" (1/1) ... [2023-12-02 17:17:04,905 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:04" (1/1) ... [2023-12-02 17:17:04,932 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:04" (1/1) ... [2023-12-02 17:17:04,954 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:04" (1/1) ... [2023-12-02 17:17:05,014 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 17:17:05,015 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 17:17:05,016 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 17:17:05,016 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 17:17:05,017 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:04" (1/1) ... [2023-12-02 17:17:05,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 17:17:05,032 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8986114b-5c66-4341-bb3f-50b171d9baba/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:17:05,045 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8986114b-5c66-4341-bb3f-50b171d9baba/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 17:17:05,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8986114b-5c66-4341-bb3f-50b171d9baba/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 17:17:05,087 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread8 [2023-12-02 17:17:05,088 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread8 [2023-12-02 17:17:05,088 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_register_led [2023-12-02 17:17:05,088 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_register_led [2023-12-02 17:17:05,088 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-12-02 17:17:05,088 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-12-02 17:17:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-12-02 17:17:05,089 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-12-02 17:17:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_add_interface [2023-12-02 17:17:05,089 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_add_interface [2023-12-02 17:17:05,089 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8 [2023-12-02 17:17:05,089 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8 [2023-12-02 17:17:05,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 17:17:05,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 17:17:05,090 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-12-02 17:17:05,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-12-02 17:17:05,090 INFO L130 BoogieDeclarations]: Found specification of procedure cancel_delayed_work_sync [2023-12-02 17:17:05,090 INFO L138 BoogieDeclarations]: Found implementation of procedure cancel_delayed_work_sync [2023-12-02 17:17:05,091 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_head_init [2023-12-02 17:17:05,091 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_head_init [2023-12-02 17:17:05,091 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2023-12-02 17:17:05,091 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2023-12-02 17:17:05,091 INFO L130 BoogieDeclarations]: Found specification of procedure skb_push [2023-12-02 17:17:05,091 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_push [2023-12-02 17:17:05,092 INFO L130 BoogieDeclarations]: Found specification of procedure __skb_unlink [2023-12-02 17:17:05,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __skb_unlink [2023-12-02 17:17:05,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_1 [2023-12-02 17:17:05,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_1 [2023-12-02 17:17:05,092 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_3 [2023-12-02 17:17:05,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_3 [2023-12-02 17:17:05,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-12-02 17:17:05,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-12-02 17:17:05,093 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_2 [2023-12-02 17:17:05,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_2 [2023-12-02 17:17:05,093 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_init [2023-12-02 17:17:05,093 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_init [2023-12-02 17:17:05,093 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_init [2023-12-02 17:17:05,094 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_init [2023-12-02 17:17:05,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2023-12-02 17:17:05,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2023-12-02 17:17:05,094 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_tx_status_irqsafe [2023-12-02 17:17:05,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_tx_status_irqsafe [2023-12-02 17:17:05,094 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_b_rf_init [2023-12-02 17:17:05,094 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_b_rf_init [2023-12-02 17:17:05,094 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-12-02 17:17:05,094 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-12-02 17:17:05,094 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-12-02 17:17:05,095 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-12-02 17:17:05,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-12-02 17:17:05,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-12-02 17:17:05,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 17:17:05,095 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 17:17:05,095 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-02 17:17:05,095 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-02 17:17:05,095 INFO L130 BoogieDeclarations]: Found specification of procedure fls [2023-12-02 17:17:05,095 INFO L138 BoogieDeclarations]: Found implementation of procedure fls [2023-12-02 17:17:05,095 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_remove_interface [2023-12-02 17:17:05,096 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_remove_interface [2023-12-02 17:17:05,096 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-12-02 17:17:05,096 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-12-02 17:17:05,096 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write [2023-12-02 17:17:05,096 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write [2023-12-02 17:17:05,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 17:17:05,097 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_stop [2023-12-02 17:17:05,097 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_stop [2023-12-02 17:17:05,097 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_set_anaparam [2023-12-02 17:17:05,097 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_set_anaparam [2023-12-02 17:17:05,097 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-12-02 17:17:05,097 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-12-02 17:17:05,097 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_configure_filter [2023-12-02 17:17:05,098 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_configure_filter [2023-12-02 17:17:05,098 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread32 [2023-12-02 17:17:05,098 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread32 [2023-12-02 17:17:05,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 17:17:05,098 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_rfkill_poll [2023-12-02 17:17:05,098 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_rfkill_poll [2023-12-02 17:17:05,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2023-12-02 17:17:05,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2023-12-02 17:17:05,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2023-12-02 17:17:05,099 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-12-02 17:17:05,099 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-12-02 17:17:05,099 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_rfkill_set_hw_state [2023-12-02 17:17:05,099 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_rfkill_set_hw_state [2023-12-02 17:17:05,099 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2023-12-02 17:17:05,099 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2023-12-02 17:17:05,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 17:17:05,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 17:17:05,100 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225z2_rf_set_tx_power [2023-12-02 17:17:05,100 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225z2_rf_set_tx_power [2023-12-02 17:17:05,100 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-12-02 17:17:05,100 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-12-02 17:17:05,101 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_config [2023-12-02 17:17:05,101 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_config [2023-12-02 17:17:05,101 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-12-02 17:17:05,101 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-12-02 17:17:05,101 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_ioread16 [2023-12-02 17:17:05,101 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_ioread16 [2023-12-02 17:17:05,101 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2023-12-02 17:17:05,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2023-12-02 17:17:05,101 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-12-02 17:17:05,101 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-12-02 17:17:05,101 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-12-02 17:17:05,102 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-12-02 17:17:05,102 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_queue_delayed_work [2023-12-02 17:17:05,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_queue_delayed_work [2023-12-02 17:17:05,102 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite8_idx [2023-12-02 17:17:05,102 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite8_idx [2023-12-02 17:17:05,102 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-12-02 17:17:05,102 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-12-02 17:17:05,102 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_is_radio_enabled [2023-12-02 17:17:05,103 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_is_radio_enabled [2023-12-02 17:17:05,103 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_disconnect [2023-12-02 17:17:05,103 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_disconnect [2023-12-02 17:17:05,103 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2023-12-02 17:17:05,103 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2023-12-02 17:17:05,103 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-12-02 17:17:05,103 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-12-02 17:17:05,103 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2023-12-02 17:17:05,104 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2023-12-02 17:17:05,104 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-12-02 17:17:05,104 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-12-02 17:17:05,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-12-02 17:17:05,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-12-02 17:17:05,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-12-02 17:17:05,104 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_tx_rate [2023-12-02 17:17:05,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_tx_rate [2023-12-02 17:17:05,104 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2023-12-02 17:17:05,105 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2023-12-02 17:17:05,105 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-12-02 17:17:05,105 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-12-02 17:17:05,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 17:17:05,105 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_stop [2023-12-02 17:17:05,105 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_stop [2023-12-02 17:17:05,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 17:17:05,105 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_write_phy [2023-12-02 17:17:05,105 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_write_phy [2023-12-02 17:17:05,106 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_tx [2023-12-02 17:17:05,106 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_tx [2023-12-02 17:17:05,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-12-02 17:17:05,106 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-12-02 17:17:05,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2023-12-02 17:17:05,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2023-12-02 17:17:05,106 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_read [2023-12-02 17:17:05,106 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_read [2023-12-02 17:17:05,107 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-12-02 17:17:05,107 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-12-02 17:17:05,107 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_conf_tx [2023-12-02 17:17:05,107 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_conf_tx [2023-12-02 17:17:05,107 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2023-12-02 17:17:05,107 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2023-12-02 17:17:05,107 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-12-02 17:17:05,108 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-12-02 17:17:05,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 17:17:05,108 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_channel [2023-12-02 17:17:05,108 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_channel [2023-12-02 17:17:05,108 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_read [2023-12-02 17:17:05,108 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_read [2023-12-02 17:17:05,108 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_rf_set_tx_power [2023-12-02 17:17:05,109 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_rf_set_tx_power [2023-12-02 17:17:05,109 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-12-02 17:17:05,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-12-02 17:17:05,109 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_unregister_led [2023-12-02 17:17:05,109 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_unregister_led [2023-12-02 17:17:05,109 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u16 [2023-12-02 17:17:05,109 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_init_urbs [2023-12-02 17:17:05,110 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_init_urbs [2023-12-02 17:17:05,110 INFO L130 BoogieDeclarations]: Found specification of procedure wiphy_name [2023-12-02 17:17:05,110 INFO L138 BoogieDeclarations]: Found implementation of procedure wiphy_name [2023-12-02 17:17:05,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 17:17:05,110 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_bss_info_changed [2023-12-02 17:17:05,110 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_bss_info_changed [2023-12-02 17:17:05,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 17:17:05,110 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2023-12-02 17:17:05,110 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2023-12-02 17:17:05,111 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_free_hw [2023-12-02 17:17:05,111 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_free_hw [2023-12-02 17:17:05,111 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_cck [2023-12-02 17:17:05,111 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_cck [2023-12-02 17:17:05,111 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-12-02 17:17:05,111 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-12-02 17:17:05,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 17:17:05,111 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_RXCB [2023-12-02 17:17:05,111 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_RXCB [2023-12-02 17:17:05,111 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 17:17:05,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 17:17:05,112 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-12-02 17:17:05,112 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-12-02 17:17:05,112 INFO L130 BoogieDeclarations]: Found specification of procedure ieee80211_get_rts_cts_rate [2023-12-02 17:17:05,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ieee80211_get_rts_cts_rate [2023-12-02 17:17:05,112 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-12-02 17:17:05,112 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-12-02 17:17:05,112 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_len [2023-12-02 17:17:05,112 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_len [2023-12-02 17:17:05,112 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_get_tsf [2023-12-02 17:17:05,112 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_get_tsf [2023-12-02 17:17:05,113 INFO L130 BoogieDeclarations]: Found specification of procedure init_timer_key [2023-12-02 17:17:05,113 INFO L138 BoogieDeclarations]: Found implementation of procedure init_timer_key [2023-12-02 17:17:05,113 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_tail [2023-12-02 17:17:05,113 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_tail [2023-12-02 17:17:05,113 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2023-12-02 17:17:05,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2023-12-02 17:17:05,113 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32_idx [2023-12-02 17:17:05,113 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32_idx [2023-12-02 17:17:05,113 INFO L130 BoogieDeclarations]: Found specification of procedure skb_unlink [2023-12-02 17:17:05,113 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_unlink [2023-12-02 17:17:05,113 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite32 [2023-12-02 17:17:05,113 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite32 [2023-12-02 17:17:05,113 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16_idx [2023-12-02 17:17:05,114 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16_idx [2023-12-02 17:17:05,114 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_cmd_reset [2023-12-02 17:17:05,114 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_cmd_reset [2023-12-02 17:17:05,114 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8225_write_phy_ofdm [2023-12-02 17:17:05,114 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8225_write_phy_ofdm [2023-12-02 17:17:05,114 INFO L130 BoogieDeclarations]: Found specification of procedure rtl8187_prepare_multicast [2023-12-02 17:17:05,114 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl8187_prepare_multicast [2023-12-02 17:17:05,114 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-12-02 17:17:05,114 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-12-02 17:17:05,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 17:17:05,114 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-12-02 17:17:05,115 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-12-02 17:17:05,115 INFO L130 BoogieDeclarations]: Found specification of procedure rtl818x_iowrite16 [2023-12-02 17:17:05,115 INFO L138 BoogieDeclarations]: Found implementation of procedure rtl818x_iowrite16 [2023-12-02 17:17:05,115 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2023-12-02 17:17:05,115 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2023-12-02 17:17:05,115 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2023-12-02 17:17:05,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 17:17:05,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 17:17:05,116 INFO L130 BoogieDeclarations]: Found specification of procedure IEEE80211_SKB_CB [2023-12-02 17:17:05,116 INFO L138 BoogieDeclarations]: Found implementation of procedure IEEE80211_SKB_CB [2023-12-02 17:17:05,946 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 17:17:05,951 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 17:17:06,231 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-12-02 17:17:16,629 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 17:17:20,093 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 17:17:20,093 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-12-02 17:17:20,096 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:17:20 BoogieIcfgContainer [2023-12-02 17:17:20,096 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 17:17:20,100 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 17:17:20,100 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 17:17:20,104 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 17:17:20,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 05:17:01" (1/3) ... [2023-12-02 17:17:20,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@94de7aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:17:20, skipping insertion in model container [2023-12-02 17:17:20,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 05:17:04" (2/3) ... [2023-12-02 17:17:20,106 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@94de7aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 05:17:20, skipping insertion in model container [2023-12-02 17:17:20,106 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 05:17:20" (3/3) ... [2023-12-02 17:17:20,107 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--wireless--rtl818x--rtl8187--rtl8187.ko-entry_point.cil.out.i [2023-12-02 17:17:20,132 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 17:17:20,132 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 17:17:20,244 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 17:17:20,252 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@665ecb4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 17:17:20,252 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 17:17:20,268 INFO L276 IsEmpty]: Start isEmpty. Operand has 2132 states, 1072 states have (on average 1.2546641791044777) internal successors, (1345), 1117 states have internal predecessors, (1345), 954 states have call successors, (954), 105 states have call predecessors, (954), 104 states have return successors, (947), 932 states have call predecessors, (947), 947 states have call successors, (947) [2023-12-02 17:17:20,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 17:17:20,283 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:17:20,284 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:17:20,285 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:17:20,291 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:17:20,291 INFO L85 PathProgramCache]: Analyzing trace with hash -2143598446, now seen corresponding path program 1 times [2023-12-02 17:17:20,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:17:20,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045434457] [2023-12-02 17:17:20,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:17:20,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:17:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:17:21,330 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-12-02 17:17:21,330 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:17:21,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045434457] [2023-12-02 17:17:21,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045434457] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:17:21,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:17:21,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:17:21,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083479453] [2023-12-02 17:17:21,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:17:21,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:17:21,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:17:21,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:17:21,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:17:21,376 INFO L87 Difference]: Start difference. First operand has 2132 states, 1072 states have (on average 1.2546641791044777) internal successors, (1345), 1117 states have internal predecessors, (1345), 954 states have call successors, (954), 105 states have call predecessors, (954), 104 states have return successors, (947), 932 states have call predecessors, (947), 947 states have call successors, (947) Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-02 17:17:26,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:17:26,197 INFO L93 Difference]: Finished difference Result 6340 states and 9696 transitions. [2023-12-02 17:17:26,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:17:26,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 59 [2023-12-02 17:17:26,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:17:26,278 INFO L225 Difference]: With dead ends: 6340 [2023-12-02 17:17:26,278 INFO L226 Difference]: Without dead ends: 4207 [2023-12-02 17:17:26,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:17:26,317 INFO L413 NwaCegarLoop]: 2977 mSDtfsCounter, 3184 mSDsluCounter, 2961 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3184 SdHoareTripleChecker+Valid, 5938 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2023-12-02 17:17:26,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3184 Valid, 5938 Invalid, 558 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2023-12-02 17:17:26,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4207 states. [2023-12-02 17:17:26,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4207 to 4207. [2023-12-02 17:17:26,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4207 states, 2121 states have (on average 1.2442244224422443) internal successors, (2639), 2193 states have internal predecessors, (2639), 1879 states have call successors, (1879), 207 states have call predecessors, (1879), 206 states have return successors, (1878), 1848 states have call predecessors, (1878), 1878 states have call successors, (1878) [2023-12-02 17:17:26,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4207 states to 4207 states and 6396 transitions. [2023-12-02 17:17:26,891 INFO L78 Accepts]: Start accepts. Automaton has 4207 states and 6396 transitions. Word has length 59 [2023-12-02 17:17:26,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:17:26,892 INFO L495 AbstractCegarLoop]: Abstraction has 4207 states and 6396 transitions. [2023-12-02 17:17:26,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-12-02 17:17:26,893 INFO L276 IsEmpty]: Start isEmpty. Operand 4207 states and 6396 transitions. [2023-12-02 17:17:26,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-02 17:17:26,899 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:17:26,899 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:17:26,900 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 17:17:26,900 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:17:26,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:17:26,901 INFO L85 PathProgramCache]: Analyzing trace with hash -1274246986, now seen corresponding path program 1 times [2023-12-02 17:17:26,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:17:26,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168786995] [2023-12-02 17:17:26,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:17:26,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:17:27,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:17:27,823 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-02 17:17:27,824 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:17:27,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168786995] [2023-12-02 17:17:27,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168786995] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:17:27,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:17:27,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 17:17:27,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515489113] [2023-12-02 17:17:27,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:17:27,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 17:17:27,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:17:27,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 17:17:27,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:17:27,829 INFO L87 Difference]: Start difference. First operand 4207 states and 6396 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-02 17:17:34,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:17:34,824 INFO L93 Difference]: Finished difference Result 8397 states and 12803 transitions. [2023-12-02 17:17:34,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 17:17:34,825 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 68 [2023-12-02 17:17:34,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:17:34,906 INFO L225 Difference]: With dead ends: 8397 [2023-12-02 17:17:34,907 INFO L226 Difference]: Without dead ends: 8392 [2023-12-02 17:17:34,913 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-02 17:17:34,914 INFO L413 NwaCegarLoop]: 2972 mSDtfsCounter, 3203 mSDsluCounter, 5909 mSDsCounter, 0 mSdLazyCounter, 818 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3203 SdHoareTripleChecker+Valid, 8881 SdHoareTripleChecker+Invalid, 819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 818 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-12-02 17:17:34,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3203 Valid, 8881 Invalid, 819 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 818 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-12-02 17:17:34,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8392 states. [2023-12-02 17:17:35,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8392 to 8384. [2023-12-02 17:17:35,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8384 states, 4222 states have (on average 1.244197063003316) internal successors, (5253), 4366 states have internal predecessors, (5253), 3749 states have call successors, (3749), 413 states have call predecessors, (3749), 412 states have return successors, (3784), 3688 states have call predecessors, (3784), 3748 states have call successors, (3784) [2023-12-02 17:17:35,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8384 states to 8384 states and 12786 transitions. [2023-12-02 17:17:35,762 INFO L78 Accepts]: Start accepts. Automaton has 8384 states and 12786 transitions. Word has length 68 [2023-12-02 17:17:35,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:17:35,763 INFO L495 AbstractCegarLoop]: Abstraction has 8384 states and 12786 transitions. [2023-12-02 17:17:35,764 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-12-02 17:17:35,764 INFO L276 IsEmpty]: Start isEmpty. Operand 8384 states and 12786 transitions. [2023-12-02 17:17:35,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2023-12-02 17:17:35,785 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:17:35,786 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:17:35,786 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 17:17:35,786 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:17:35,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:17:35,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1212657541, now seen corresponding path program 1 times [2023-12-02 17:17:35,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:17:35,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148601020] [2023-12-02 17:17:35,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:17:35,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:17:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:17:36,298 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2023-12-02 17:17:36,299 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:17:36,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148601020] [2023-12-02 17:17:36,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148601020] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:17:36,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:17:36,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:17:36,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926716255] [2023-12-02 17:17:36,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:17:36,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:17:36,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:17:36,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:17:36,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:17:36,304 INFO L87 Difference]: Start difference. First operand 8384 states and 12786 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 17:17:40,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:17:40,256 INFO L93 Difference]: Finished difference Result 21283 states and 32532 transitions. [2023-12-02 17:17:40,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:17:40,256 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 124 [2023-12-02 17:17:40,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:17:40,378 INFO L225 Difference]: With dead ends: 21283 [2023-12-02 17:17:40,379 INFO L226 Difference]: Without dead ends: 12916 [2023-12-02 17:17:40,517 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:17:40,518 INFO L413 NwaCegarLoop]: 2968 mSDtfsCounter, 1771 mSDsluCounter, 2864 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1771 SdHoareTripleChecker+Valid, 5832 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2023-12-02 17:17:40,519 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1771 Valid, 5832 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2023-12-02 17:17:40,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12916 states. [2023-12-02 17:17:41,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12916 to 12911. [2023-12-02 17:17:41,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12911 states, 6306 states have (on average 1.2397716460513797) internal successors, (7818), 6494 states have internal predecessors, (7818), 5955 states have call successors, (5955), 650 states have call predecessors, (5955), 649 states have return successors, (5990), 5874 states have call predecessors, (5990), 5954 states have call successors, (5990) [2023-12-02 17:17:41,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12911 states to 12911 states and 19763 transitions. [2023-12-02 17:17:41,827 INFO L78 Accepts]: Start accepts. Automaton has 12911 states and 19763 transitions. Word has length 124 [2023-12-02 17:17:41,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:17:41,828 INFO L495 AbstractCegarLoop]: Abstraction has 12911 states and 19763 transitions. [2023-12-02 17:17:41,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-02 17:17:41,829 INFO L276 IsEmpty]: Start isEmpty. Operand 12911 states and 19763 transitions. [2023-12-02 17:17:41,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-02 17:17:41,852 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:17:41,852 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:17:41,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 17:17:41,853 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:17:41,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:17:41,853 INFO L85 PathProgramCache]: Analyzing trace with hash -188590840, now seen corresponding path program 1 times [2023-12-02 17:17:41,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:17:41,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306023335] [2023-12-02 17:17:41,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:17:41,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:17:42,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:17:42,418 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2023-12-02 17:17:42,418 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:17:42,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306023335] [2023-12-02 17:17:42,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306023335] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:17:42,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:17:42,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:17:42,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231287578] [2023-12-02 17:17:42,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:17:42,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:17:42,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:17:42,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:17:42,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:17:42,422 INFO L87 Difference]: Start difference. First operand 12911 states and 19763 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-02 17:17:47,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:17:47,824 INFO L93 Difference]: Finished difference Result 32651 states and 49886 transitions. [2023-12-02 17:17:47,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:17:47,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 161 [2023-12-02 17:17:47,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:17:48,021 INFO L225 Difference]: With dead ends: 32651 [2023-12-02 17:17:48,021 INFO L226 Difference]: Without dead ends: 19760 [2023-12-02 17:17:48,122 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:17:48,123 INFO L413 NwaCegarLoop]: 4879 mSDtfsCounter, 3101 mSDsluCounter, 2360 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3101 SdHoareTripleChecker+Valid, 7239 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-12-02 17:17:48,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3101 Valid, 7239 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-12-02 17:17:48,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19760 states. [2023-12-02 17:17:50,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19760 to 19755. [2023-12-02 17:17:50,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19755 states, 9772 states have (on average 1.2417110110519853) internal successors, (12134), 10092 states have internal predecessors, (12134), 8933 states have call successors, (8933), 1050 states have call predecessors, (8933), 1049 states have return successors, (8988), 8792 states have call predecessors, (8988), 8932 states have call successors, (8988) [2023-12-02 17:17:50,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19755 states to 19755 states and 30055 transitions. [2023-12-02 17:17:50,483 INFO L78 Accepts]: Start accepts. Automaton has 19755 states and 30055 transitions. Word has length 161 [2023-12-02 17:17:50,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:17:50,484 INFO L495 AbstractCegarLoop]: Abstraction has 19755 states and 30055 transitions. [2023-12-02 17:17:50,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-02 17:17:50,485 INFO L276 IsEmpty]: Start isEmpty. Operand 19755 states and 30055 transitions. [2023-12-02 17:17:50,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2023-12-02 17:17:50,495 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:17:50,496 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:17:50,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 17:17:50,496 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:17:50,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:17:50,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1371226508, now seen corresponding path program 1 times [2023-12-02 17:17:50,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:17:50,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218427018] [2023-12-02 17:17:50,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:17:50,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:17:50,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:17:50,869 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2023-12-02 17:17:50,869 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:17:50,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218427018] [2023-12-02 17:17:50,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218427018] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:17:50,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:17:50,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:17:50,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289738029] [2023-12-02 17:17:50,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:17:50,872 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:17:50,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:17:50,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:17:50,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:17:50,873 INFO L87 Difference]: Start difference. First operand 19755 states and 30055 transitions. Second operand has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 17:17:53,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:17:55,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:17:58,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:17:58,391 INFO L93 Difference]: Finished difference Result 29649 states and 45160 transitions. [2023-12-02 17:17:58,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:17:58,392 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) Word has length 161 [2023-12-02 17:17:58,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:17:58,632 INFO L225 Difference]: With dead ends: 29649 [2023-12-02 17:17:58,633 INFO L226 Difference]: Without dead ends: 19771 [2023-12-02 17:17:58,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:17:58,751 INFO L413 NwaCegarLoop]: 2954 mSDtfsCounter, 4 mSDsluCounter, 2948 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5902 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-12-02 17:17:58,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5902 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 538 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2023-12-02 17:17:58,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19771 states. [2023-12-02 17:18:00,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19771 to 19771. [2023-12-02 17:18:00,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19771 states, 9784 states have (on average 1.241414554374489) internal successors, (12146), 10108 states have internal predecessors, (12146), 8933 states have call successors, (8933), 1050 states have call predecessors, (8933), 1053 states have return successors, (8992), 8792 states have call predecessors, (8992), 8932 states have call successors, (8992) [2023-12-02 17:18:00,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19771 states to 19771 states and 30071 transitions. [2023-12-02 17:18:00,930 INFO L78 Accepts]: Start accepts. Automaton has 19771 states and 30071 transitions. Word has length 161 [2023-12-02 17:18:00,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:18:00,931 INFO L495 AbstractCegarLoop]: Abstraction has 19771 states and 30071 transitions. [2023-12-02 17:18:00,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.0) internal successors, (81), 3 states have internal predecessors, (81), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 2 states have call predecessors, (20), 1 states have call successors, (20) [2023-12-02 17:18:00,932 INFO L276 IsEmpty]: Start isEmpty. Operand 19771 states and 30071 transitions. [2023-12-02 17:18:00,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2023-12-02 17:18:00,945 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:18:00,946 INFO L195 NwaCegarLoop]: trace histogram [13, 13, 13, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:18:00,946 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 17:18:00,946 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:18:00,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:18:00,947 INFO L85 PathProgramCache]: Analyzing trace with hash 216357179, now seen corresponding path program 1 times [2023-12-02 17:18:00,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:18:00,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608864938] [2023-12-02 17:18:00,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:18:00,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:18:01,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:18:02,244 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2023-12-02 17:18:02,244 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:18:02,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608864938] [2023-12-02 17:18:02,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608864938] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:18:02,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:18:02,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-02 17:18:02,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905922242] [2023-12-02 17:18:02,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:18:02,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-02 17:18:02,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:18:02,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-02 17:18:02,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2023-12-02 17:18:02,247 INFO L87 Difference]: Start difference. First operand 19771 states and 30071 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (20), 5 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-02 17:18:07,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:18:08,636 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:18:17,864 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:18:28,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:18:28,218 INFO L93 Difference]: Finished difference Result 40458 states and 61450 transitions. [2023-12-02 17:18:28,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-02 17:18:28,219 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (20), 5 states have call predecessors, (20), 3 states have call successors, (20) Word has length 162 [2023-12-02 17:18:28,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:18:28,319 INFO L225 Difference]: With dead ends: 40458 [2023-12-02 17:18:28,319 INFO L226 Difference]: Without dead ends: 20707 [2023-12-02 17:18:28,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2023-12-02 17:18:28,410 INFO L413 NwaCegarLoop]: 1195 mSDtfsCounter, 5973 mSDsluCounter, 2962 mSDsCounter, 0 mSdLazyCounter, 10207 mSolverCounterSat, 7010 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6938 SdHoareTripleChecker+Valid, 4157 SdHoareTripleChecker+Invalid, 17218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7010 IncrementalHoareTripleChecker+Valid, 10207 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.1s IncrementalHoareTripleChecker+Time [2023-12-02 17:18:28,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6938 Valid, 4157 Invalid, 17218 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7010 Valid, 10207 Invalid, 1 Unknown, 0 Unchecked, 24.1s Time] [2023-12-02 17:18:28,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20707 states. [2023-12-02 17:18:30,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20707 to 20687. [2023-12-02 17:18:30,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20687 states, 10302 states have (on average 1.2343234323432344) internal successors, (12716), 10634 states have internal predecessors, (12716), 9215 states have call successors, (9215), 1114 states have call predecessors, (9215), 1169 states have return successors, (9366), 9134 states have call predecessors, (9366), 9214 states have call successors, (9366) [2023-12-02 17:18:30,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20687 states to 20687 states and 31297 transitions. [2023-12-02 17:18:30,204 INFO L78 Accepts]: Start accepts. Automaton has 20687 states and 31297 transitions. Word has length 162 [2023-12-02 17:18:30,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:18:30,205 INFO L495 AbstractCegarLoop]: Abstraction has 20687 states and 31297 transitions. [2023-12-02 17:18:30,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 7 states have internal predecessors, (82), 4 states have call successors, (21), 4 states have call predecessors, (21), 2 states have return successors, (20), 5 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-02 17:18:30,205 INFO L276 IsEmpty]: Start isEmpty. Operand 20687 states and 31297 transitions. [2023-12-02 17:18:30,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 859 [2023-12-02 17:18:30,260 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:18:30,261 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 28, 28, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:18:30,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 17:18:30,261 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:18:30,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:18:30,262 INFO L85 PathProgramCache]: Analyzing trace with hash -1597787601, now seen corresponding path program 1 times [2023-12-02 17:18:30,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:18:30,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755412838] [2023-12-02 17:18:30,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:18:30,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:18:30,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:18:31,707 INFO L134 CoverageAnalysis]: Checked inductivity of 5639 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 5616 trivial. 0 not checked. [2023-12-02 17:18:31,707 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:18:31,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755412838] [2023-12-02 17:18:31,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755412838] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:18:31,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:18:31,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 17:18:31,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010066295] [2023-12-02 17:18:31,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:18:31,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 17:18:31,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:18:31,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 17:18:31,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:18:31,711 INFO L87 Difference]: Start difference. First operand 20687 states and 31297 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 3 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2023-12-02 17:18:33,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:18:34,881 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:18:37,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:18:37,522 INFO L93 Difference]: Finished difference Result 41418 states and 62678 transitions. [2023-12-02 17:18:37,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 17:18:37,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 3 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) Word has length 858 [2023-12-02 17:18:37,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:18:37,722 INFO L225 Difference]: With dead ends: 41418 [2023-12-02 17:18:37,722 INFO L226 Difference]: Without dead ends: 20751 [2023-12-02 17:18:37,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 17:18:37,902 INFO L413 NwaCegarLoop]: 2954 mSDtfsCounter, 6 mSDsluCounter, 2944 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 5898 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-12-02 17:18:37,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 5898 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-12-02 17:18:37,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20751 states. [2023-12-02 17:18:39,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20751 to 20735. [2023-12-02 17:18:39,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20735 states, 10334 states have (on average 1.2343719760015484) internal successors, (12756), 10666 states have internal predecessors, (12756), 9231 states have call successors, (9231), 1114 states have call predecessors, (9231), 1169 states have return successors, (9382), 9150 states have call predecessors, (9382), 9230 states have call successors, (9382) [2023-12-02 17:18:39,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20735 states to 20735 states and 31369 transitions. [2023-12-02 17:18:39,802 INFO L78 Accepts]: Start accepts. Automaton has 20735 states and 31369 transitions. Word has length 858 [2023-12-02 17:18:39,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:18:39,803 INFO L495 AbstractCegarLoop]: Abstraction has 20735 states and 31369 transitions. [2023-12-02 17:18:39,804 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 3 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2023-12-02 17:18:39,804 INFO L276 IsEmpty]: Start isEmpty. Operand 20735 states and 31369 transitions. [2023-12-02 17:18:39,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 869 [2023-12-02 17:18:39,857 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:18:39,858 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 28, 28, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:18:39,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 17:18:39,858 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:18:39,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:18:39,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1693044493, now seen corresponding path program 1 times [2023-12-02 17:18:39,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:18:39,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345264619] [2023-12-02 17:18:39,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:18:39,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:18:40,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:18:41,610 INFO L134 CoverageAnalysis]: Checked inductivity of 5599 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 5576 trivial. 0 not checked. [2023-12-02 17:18:41,610 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:18:41,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345264619] [2023-12-02 17:18:41,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345264619] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 17:18:41,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 17:18:41,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-02 17:18:41,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988552944] [2023-12-02 17:18:41,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 17:18:41,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-02 17:18:41,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 17:18:41,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-02 17:18:41,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:18:41,613 INFO L87 Difference]: Start difference. First operand 20735 states and 31369 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 3 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (70), 3 states have call predecessors, (70), 3 states have call successors, (70) [2023-12-02 17:18:44,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 17:18:48,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 17:18:48,500 INFO L93 Difference]: Finished difference Result 41538 states and 62862 transitions. [2023-12-02 17:18:48,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-02 17:18:48,501 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 3 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (70), 3 states have call predecessors, (70), 3 states have call successors, (70) Word has length 868 [2023-12-02 17:18:48,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 17:18:48,642 INFO L225 Difference]: With dead ends: 41538 [2023-12-02 17:18:48,642 INFO L226 Difference]: Without dead ends: 20823 [2023-12-02 17:18:48,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-02 17:18:48,784 INFO L413 NwaCegarLoop]: 2970 mSDtfsCounter, 18 mSDsluCounter, 5894 mSDsCounter, 0 mSdLazyCounter, 856 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 8864 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 856 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-12-02 17:18:48,784 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 8864 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 856 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-12-02 17:18:48,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20823 states. [2023-12-02 17:18:50,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20823 to 20783. [2023-12-02 17:18:50,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20783 states, 10366 states have (on average 1.234420219949836) internal successors, (12796), 10698 states have internal predecessors, (12796), 9247 states have call successors, (9247), 1114 states have call predecessors, (9247), 1169 states have return successors, (9398), 9166 states have call predecessors, (9398), 9246 states have call successors, (9398) [2023-12-02 17:18:50,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20783 states to 20783 states and 31441 transitions. [2023-12-02 17:18:50,663 INFO L78 Accepts]: Start accepts. Automaton has 20783 states and 31441 transitions. Word has length 868 [2023-12-02 17:18:50,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 17:18:50,664 INFO L495 AbstractCegarLoop]: Abstraction has 20783 states and 31441 transitions. [2023-12-02 17:18:50,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 3 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (70), 3 states have call predecessors, (70), 3 states have call successors, (70) [2023-12-02 17:18:50,664 INFO L276 IsEmpty]: Start isEmpty. Operand 20783 states and 31441 transitions. [2023-12-02 17:18:50,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 886 [2023-12-02 17:18:50,695 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 17:18:50,696 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 29, 29, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 17:18:50,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 17:18:50,696 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 17:18:50,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 17:18:50,697 INFO L85 PathProgramCache]: Analyzing trace with hash 1922364652, now seen corresponding path program 1 times [2023-12-02 17:18:50,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 17:18:50,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457557496] [2023-12-02 17:18:50,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:18:50,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 17:18:50,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:18:52,388 INFO L134 CoverageAnalysis]: Checked inductivity of 5949 backedges. 23 proven. 6 refuted. 0 times theorem prover too weak. 5920 trivial. 0 not checked. [2023-12-02 17:18:52,388 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 17:18:52,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457557496] [2023-12-02 17:18:52,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457557496] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 17:18:52,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1789494172] [2023-12-02 17:18:52,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 17:18:52,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 17:18:52,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8986114b-5c66-4341-bb3f-50b171d9baba/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 17:18:52,392 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8986114b-5c66-4341-bb3f-50b171d9baba/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 17:18:52,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8986114b-5c66-4341-bb3f-50b171d9baba/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 17:18:54,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 17:18:54,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 10558 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 17:18:54,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 17:18:54,857 INFO L134 CoverageAnalysis]: Checked inductivity of 5949 backedges. 2995 proven. 6 refuted. 0 times theorem prover too weak. 2948 trivial. 0 not checked. [2023-12-02 17:18:54,857 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 17:18:55,974 INFO L134 CoverageAnalysis]: Checked inductivity of 5949 backedges. 23 proven. 6 refuted. 0 times theorem prover too weak. 5920 trivial. 0 not checked. [2023-12-02 17:18:55,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1789494172] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 17:18:55,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [977599927] [2023-12-02 17:18:56,000 INFO L159 IcfgInterpreter]: Started Sifa with 235 locations of interest [2023-12-02 17:18:56,001 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 17:18:56,004 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 17:18:56,008 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 17:18:56,009 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-12-02 17:20:32,004 WARN L293 SmtUtils]: Spent 8.69s on a formula simplification that was a NOOP. DAG size: 3952 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 17:21:47,297 WARN L293 SmtUtils]: Spent 8.94s on a formula simplification that was a NOOP. DAG size: 3952 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 17:22:55,248 WARN L293 SmtUtils]: Spent 8.58s on a formula simplification that was a NOOP. DAG size: 3952 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 17:24:18,906 WARN L293 SmtUtils]: Spent 9.62s on a formula simplification that was a NOOP. DAG size: 3952 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-02 17:25:17,000 WARN L293 SmtUtils]: Spent 18.36s on a formula simplification that was a NOOP. DAG size: 8387 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 17:25:35,859 WARN L293 SmtUtils]: Spent 18.84s on a formula simplification that was a NOOP. DAG size: 8387 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 17:26:01,803 WARN L293 SmtUtils]: Spent 25.88s on a formula simplification. DAG size of input: 8389 DAG size of output: 8387 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 17:26:19,722 WARN L293 SmtUtils]: Spent 17.91s on a formula simplification that was a NOOP. DAG size: 8387 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 17:26:39,457 WARN L293 SmtUtils]: Spent 19.72s on a formula simplification that was a NOOP. DAG size: 8387 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm) [2023-12-02 17:27:07,264 WARN L293 SmtUtils]: Spent 27.77s on a formula simplification. DAG size of input: 8389 DAG size of output: 8387 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.xJunctTerm)