./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-uwb-i1480-dfu-i1480-dfu-usb.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_1abebd80-f3f3-43e0-8426-9b1b9018d351/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abebd80-f3f3-43e0-8426-9b1b9018d351/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abebd80-f3f3-43e0-8426-9b1b9018d351/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abebd80-f3f3-43e0-8426-9b1b9018d351/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-uwb-i1480-dfu-i1480-dfu-usb.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abebd80-f3f3-43e0-8426-9b1b9018d351/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abebd80-f3f3-43e0-8426-9b1b9018d351/bin/utaipan-verify-DbMuA5NWw2 --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 31f1315d23c882220bc6f0d965399be802bae4ce37ec7445b5ebe262ba0dc67b --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:24:20,894 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:24:20,978 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abebd80-f3f3-43e0-8426-9b1b9018d351/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-02 12:24:20,985 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:24:20,986 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:24:21,023 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:24:21,023 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:24:21,024 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:24:21,024 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:24:21,025 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:24:21,025 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:24:21,025 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:24:21,026 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:24:21,026 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:24:21,026 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:24:21,029 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:24:21,030 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:24:21,031 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:24:21,031 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:24:21,031 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:24:21,032 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:24:21,034 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:24:21,034 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:24:21,035 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:24:21,035 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:24:21,035 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:24:21,035 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:24:21,036 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:24:21,036 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:24:21,036 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:24:21,036 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:24:21,040 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:24:21,041 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:24:21,041 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:24:21,041 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:24:21,042 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:24:21,042 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:24:21,042 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:24:21,042 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:24:21,043 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:24:21,043 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:24:21,043 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:24:21,044 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:24:21,044 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:24:21,045 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_1abebd80-f3f3-43e0-8426-9b1b9018d351/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abebd80-f3f3-43e0-8426-9b1b9018d351/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 31f1315d23c882220bc6f0d965399be802bae4ce37ec7445b5ebe262ba0dc67b [2024-11-02 12:24:21,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:24:21,361 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:24:21,366 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:24:21,367 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:24:21,368 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:24:21,369 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abebd80-f3f3-43e0-8426-9b1b9018d351/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-uwb-i1480-dfu-i1480-dfu-usb.ko.cil.out.i Unable to find full path for "g++" [2024-11-02 12:24:23,352 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:24:23,853 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:24:23,853 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abebd80-f3f3-43e0-8426-9b1b9018d351/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-uwb-i1480-dfu-i1480-dfu-usb.ko.cil.out.i [2024-11-02 12:24:23,893 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abebd80-f3f3-43e0-8426-9b1b9018d351/bin/utaipan-verify-DbMuA5NWw2/data/ef5be2c50/a3be369d0fb54bc4b9acfa73a0bb411e/FLAG06067fc71 [2024-11-02 12:24:23,935 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abebd80-f3f3-43e0-8426-9b1b9018d351/bin/utaipan-verify-DbMuA5NWw2/data/ef5be2c50/a3be369d0fb54bc4b9acfa73a0bb411e [2024-11-02 12:24:23,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:24:23,940 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:24:23,944 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:24:23,944 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:24:23,949 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:24:23,950 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:24:23" (1/1) ... [2024-11-02 12:24:23,951 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21d5cbce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:23, skipping insertion in model container [2024-11-02 12:24:23,953 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:24:23" (1/1) ... [2024-11-02 12:24:24,066 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:24:24,697 WARN L251 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_1abebd80-f3f3-43e0-8426-9b1b9018d351/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-uwb-i1480-dfu-i1480-dfu-usb.ko.cil.out.i[96705,96718] [2024-11-02 12:24:25,273 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:24:25,325 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:24:25,503 WARN L251 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_1abebd80-f3f3-43e0-8426-9b1b9018d351/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-uwb-i1480-dfu-i1480-dfu-usb.ko.cil.out.i[96705,96718] [2024-11-02 12:24:25,604 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n" ".pushsection __bug_table,\"a\"\n" "2:\t.long 1b - 2b, %c0 - 2b\n" "\t.word %c1, 0\n" "\t.org 2b+%c2\n" ".popsection": : "i" ("/anthill/stuff/tacas-comp/work/current--X--drivers/uwb/i1480/dfu/i1480-dfu-usb.ko--X--bulklinux-3.0.1--X--68_1/linux-3.0.1/csd_deg_dscv/14/dscv_tempdir/dscv/ri/68_1/drivers/uwb/i1480/dfu/phy.c"), "i" (58), "i" (sizeof(struct bug_entry ))); [4163-4169] [2024-11-02 12:24:25,612 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n" ".pushsection __bug_table,\"a\"\n" "2:\t.long 1b - 2b, %c0 - 2b\n" "\t.word %c1, 0\n" "\t.org 2b+%c2\n" ".popsection": : "i" ("/anthill/stuff/tacas-comp/work/current--X--drivers/uwb/i1480/dfu/i1480-dfu-usb.ko--X--bulklinux-3.0.1--X--68_1/linux-3.0.1/csd_deg_dscv/14/dscv_tempdir/dscv/ri/68_1/drivers/uwb/i1480/dfu/phy.c"), "i" (110), "i" (sizeof(struct bug_entry ))); [4241-4247] [2024-11-02 12:24:25,687 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n" ".pushsection __bug_table,\"a\"\n" "2:\t.long 1b - 2b, %c0 - 2b\n" "\t.word %c1, 0\n" "\t.org 2b+%c2\n" ".popsection": : "i" ("/anthill/stuff/tacas-comp/work/current--X--drivers/uwb/i1480/dfu/i1480-dfu-usb.ko--X--bulklinux-3.0.1--X--68_1/linux-3.0.1/csd_deg_dscv/14/dscv_tempdir/dscv/ri/68_1/drivers/uwb/i1480/dfu/usb.c"), "i" (118), "i" (sizeof(struct bug_entry ))); [4609-4615] [2024-11-02 12:24:25,693 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n" ".pushsection __bug_table,\"a\"\n" "2:\t.long 1b - 2b, %c0 - 2b\n" "\t.word %c1, 0\n" "\t.org 2b+%c2\n" ".popsection": : "i" ("/anthill/stuff/tacas-comp/work/current--X--drivers/uwb/i1480/dfu/i1480-dfu-usb.ko--X--bulklinux-3.0.1--X--68_1/linux-3.0.1/csd_deg_dscv/14/dscv_tempdir/dscv/ri/68_1/drivers/uwb/i1480/dfu/usb.c"), "i" (157), "i" (sizeof(struct bug_entry ))); [4702-4708] [2024-11-02 12:24:25,696 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n" ".pushsection __bug_table,\"a\"\n" "2:\t.long 1b - 2b, %c0 - 2b\n" "\t.word %c1, 0\n" "\t.org 2b+%c2\n" ".popsection": : "i" ("/anthill/stuff/tacas-comp/work/current--X--drivers/uwb/i1480/dfu/i1480-dfu-usb.ko--X--bulklinux-3.0.1--X--68_1/linux-3.0.1/csd_deg_dscv/14/dscv_tempdir/dscv/ri/68_1/drivers/uwb/i1480/dfu/usb.c"), "i" (158), "i" (sizeof(struct bug_entry ))); [4737-4743] [2024-11-02 12:24:25,697 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n" ".pushsection __bug_table,\"a\"\n" "2:\t.long 1b - 2b, %c0 - 2b\n" "\t.word %c1, 0\n" "\t.org 2b+%c2\n" ".popsection": : "i" ("/anthill/stuff/tacas-comp/work/current--X--drivers/uwb/i1480/dfu/i1480-dfu-usb.ko--X--bulklinux-3.0.1--X--68_1/linux-3.0.1/csd_deg_dscv/14/dscv_tempdir/dscv/ri/68_1/drivers/uwb/i1480/dfu/usb.c"), "i" (159), "i" (sizeof(struct bug_entry ))); [4772-4778] [2024-11-02 12:24:25,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:24:25,811 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:24:25,811 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:25 WrapperNode [2024-11-02 12:24:25,812 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:24:25,813 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:24:25,813 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:24:25,813 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:24:25,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:25" (1/1) ... [2024-11-02 12:24:25,861 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:25" (1/1) ... [2024-11-02 12:24:25,963 INFO L138 Inliner]: procedures = 116, calls = 855, calls flagged for inlining = 40, calls inlined = 40, statements flattened = 2760 [2024-11-02 12:24:25,963 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:24:25,964 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:24:25,964 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:24:25,964 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:24:25,978 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:25" (1/1) ... [2024-11-02 12:24:25,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:25" (1/1) ... [2024-11-02 12:24:26,004 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:25" (1/1) ... [2024-11-02 12:24:26,005 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:25" (1/1) ... [2024-11-02 12:24:26,077 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:25" (1/1) ... [2024-11-02 12:24:26,146 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:25" (1/1) ... [2024-11-02 12:24:26,162 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:25" (1/1) ... [2024-11-02 12:24:26,181 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:25" (1/1) ... [2024-11-02 12:24:26,203 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:24:26,205 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:24:26,205 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:24:26,205 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:24:26,206 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:25" (1/1) ... [2024-11-02 12:24:26,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:24:26,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abebd80-f3f3-43e0-8426-9b1b9018d351/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:24:26,239 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abebd80-f3f3-43e0-8426-9b1b9018d351/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:24:26,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1abebd80-f3f3-43e0-8426-9b1b9018d351/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:24:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_dfu_driver_exit [2024-11-02 12:24:26,267 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_dfu_driver_exit [2024-11-02 12:24:26,267 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_dfu_driver_init [2024-11-02 12:24:26,267 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_dfu_driver_init [2024-11-02 12:24:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure fw_hdrs_free [2024-11-02 12:24:26,268 INFO L138 BoogieDeclarations]: Found implementation of procedure fw_hdrs_free [2024-11-02 12:24:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-02 12:24:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2024-11-02 12:24:26,268 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2024-11-02 12:24:26,268 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2024-11-02 12:24:26,269 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2024-11-02 12:24:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2024-11-02 12:24:26,269 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2024-11-02 12:24:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~int~TO~int [2024-11-02 12:24:26,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~int~TO~int [2024-11-02 12:24:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-02 12:24:26,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-02 12:24:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 12:24:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2024-11-02 12:24:26,270 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2024-11-02 12:24:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_mpi_read [2024-11-02 12:24:26,270 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_mpi_read [2024-11-02 12:24:26,270 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_cmd_reset [2024-11-02 12:24:26,271 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_cmd_reset [2024-11-02 12:24:26,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-02 12:24:26,271 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-02 12:24:26,271 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_interruptible_timeout [2024-11-02 12:24:26,271 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_interruptible_timeout [2024-11-02 12:24:26,271 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-02 12:24:26,271 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-02 12:24:26,273 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-02 12:24:26,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-02 12:24:26,273 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2024-11-02 12:24:26,274 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2024-11-02 12:24:26,274 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2024-11-02 12:24:26,274 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2024-11-02 12:24:26,274 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-02 12:24:26,274 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-02 12:24:26,274 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_mpi_write [2024-11-02 12:24:26,275 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_mpi_write [2024-11-02 12:24:26,275 INFO L130 BoogieDeclarations]: Found specification of procedure dev_printk [2024-11-02 12:24:26,275 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_printk [2024-11-02 12:24:26,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 12:24:26,275 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2024-11-02 12:24:26,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2024-11-02 12:24:26,276 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_mac_fw_upload [2024-11-02 12:24:26,276 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_mac_fw_upload [2024-11-02 12:24:26,276 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion___0 [2024-11-02 12:24:26,276 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion___0 [2024-11-02 12:24:26,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-02 12:24:26,276 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-02 12:24:26,277 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_intf [2024-11-02 12:24:26,279 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_intf [2024-11-02 12:24:26,279 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_rceb_check [2024-11-02 12:24:26,279 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_rceb_check [2024-11-02 12:24:26,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-02 12:24:26,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:24:26,281 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_fw_upload [2024-11-02 12:24:26,281 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_fw_upload [2024-11-02 12:24:26,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-02 12:24:26,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 12:24:26,284 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-11-02 12:24:26,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-11-02 12:24:26,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-02 12:24:26,284 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2024-11-02 12:24:26,284 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2024-11-02 12:24:26,285 INFO L130 BoogieDeclarations]: Found specification of procedure __mac_fw_upload [2024-11-02 12:24:26,285 INFO L138 BoogieDeclarations]: Found implementation of procedure __mac_fw_upload [2024-11-02 12:24:26,285 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2024-11-02 12:24:26,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2024-11-02 12:24:26,285 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_print_state [2024-11-02 12:24:26,285 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_print_state [2024-11-02 12:24:26,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 12:24:26,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-02 12:24:26,286 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-02 12:24:26,286 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-02 12:24:26,286 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_phy_fw_upload [2024-11-02 12:24:26,286 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_phy_fw_upload [2024-11-02 12:24:26,286 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-02 12:24:26,286 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-02 12:24:26,287 INFO L130 BoogieDeclarations]: Found specification of procedure request_firmware [2024-11-02 12:24:26,287 INFO L138 BoogieDeclarations]: Found implementation of procedure request_firmware [2024-11-02 12:24:26,287 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2024-11-02 12:24:26,287 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2024-11-02 12:24:26,287 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2024-11-02 12:24:26,287 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2024-11-02 12:24:26,287 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2024-11-02 12:24:26,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2024-11-02 12:24:26,288 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2024-11-02 12:24:26,288 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2024-11-02 12:24:26,288 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2024-11-02 12:24:26,288 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2024-11-02 12:24:26,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:24:26,288 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~$Pointer$~X~int~TO~int [2024-11-02 12:24:26,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~$Pointer$~X~int~TO~int [2024-11-02 12:24:26,293 INFO L130 BoogieDeclarations]: Found specification of procedure i1480_cmd [2024-11-02 12:24:26,293 INFO L138 BoogieDeclarations]: Found implementation of procedure i1480_cmd [2024-11-02 12:24:26,293 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2024-11-02 12:24:26,293 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2024-11-02 12:24:26,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-02 12:24:26,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:24:26,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:24:26,784 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:24:26,787 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:24:26,797 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-02 12:24:26,994 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !false; [2024-11-02 12:24:26,995 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume false; [2024-11-02 12:24:28,163 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2024-11-02 12:24:28,519 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-02 12:24:32,236 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume !false; [2024-11-02 12:24:32,236 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##16: assume false; [2024-11-02 12:24:32,532 INFO L? ?]: Removed 803 outVars from TransFormulas that were not future-live. [2024-11-02 12:24:32,532 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:24:33,109 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:24:33,109 INFO L316 CfgBuilder]: Removed 43 assume(true) statements. [2024-11-02 12:24:33,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:24:33 BoogieIcfgContainer [2024-11-02 12:24:33,110 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:24:33,112 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:24:33,113 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:24:33,116 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:24:33,116 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:24:23" (1/3) ... [2024-11-02 12:24:33,117 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2689c48e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:24:33, skipping insertion in model container [2024-11-02 12:24:33,117 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:24:25" (2/3) ... [2024-11-02 12:24:33,117 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2689c48e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:24:33, skipping insertion in model container [2024-11-02 12:24:33,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:24:33" (3/3) ... [2024-11-02 12:24:33,119 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-uwb-i1480-dfu-i1480-dfu-usb.ko.cil.out.i [2024-11-02 12:24:33,138 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:24:33,139 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:24:33,246 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:24:33,255 INFO L333 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, 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;@23ec74c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:24:33,255 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:24:33,264 INFO L276 IsEmpty]: Start isEmpty. Operand has 606 states, 416 states have (on average 1.40625) internal successors, (585), 427 states have internal predecessors, (585), 146 states have call successors, (146), 43 states have call predecessors, (146), 42 states have return successors, (145), 145 states have call predecessors, (145), 145 states have call successors, (145) [2024-11-02 12:24:33,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-02 12:24:33,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:24:33,273 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:24:33,274 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:24:33,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:24:33,280 INFO L85 PathProgramCache]: Analyzing trace with hash -408169899, now seen corresponding path program 1 times [2024-11-02 12:24:33,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:24:33,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145235149] [2024-11-02 12:24:33,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:24:33,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:24:40,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:24:40,725 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:24:40,726 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:24:40,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145235149] [2024-11-02 12:24:40,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1145235149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:24:40,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:24:40,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:24:40,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326249403] [2024-11-02 12:24:40,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:24:40,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:24:40,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:24:40,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:24:40,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:24:40,762 INFO L87 Difference]: Start difference. First operand has 606 states, 416 states have (on average 1.40625) internal successors, (585), 427 states have internal predecessors, (585), 146 states have call successors, (146), 43 states have call predecessors, (146), 42 states have return successors, (145), 145 states have call predecessors, (145), 145 states have call successors, (145) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:24:42,837 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:24:45,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:24:45,071 INFO L93 Difference]: Finished difference Result 1288 states and 1885 transitions. [2024-11-02 12:24:45,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:24:45,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2024-11-02 12:24:45,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:24:45,092 INFO L225 Difference]: With dead ends: 1288 [2024-11-02 12:24:45,092 INFO L226 Difference]: Without dead ends: 672 [2024-11-02 12:24:45,103 INFO L431 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 [2024-11-02 12:24:45,107 INFO L432 NwaCegarLoop]: 740 mSDtfsCounter, 106 mSDsluCounter, 728 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 47 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1468 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-02 12:24:45,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [106 Valid, 1468 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 177 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-11-02 12:24:45,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 672 states. [2024-11-02 12:24:45,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 672 to 669. [2024-11-02 12:24:45,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 451 states have (on average 1.2860310421286032) internal successors, (580), 459 states have internal predecessors, (580), 164 states have call successors, (164), 54 states have call predecessors, (164), 53 states have return successors, (161), 160 states have call predecessors, (161), 161 states have call successors, (161) [2024-11-02 12:24:45,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 905 transitions. [2024-11-02 12:24:45,238 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 905 transitions. Word has length 10 [2024-11-02 12:24:45,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:24:45,240 INFO L471 AbstractCegarLoop]: Abstraction has 669 states and 905 transitions. [2024-11-02 12:24:45,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:24:45,240 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 905 transitions. [2024-11-02 12:24:45,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-02 12:24:45,241 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:24:45,241 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 12:24:45,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 12:24:45,241 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:24:45,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:24:45,242 INFO L85 PathProgramCache]: Analyzing trace with hash 231331058, now seen corresponding path program 1 times [2024-11-02 12:24:45,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:24:45,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944890091] [2024-11-02 12:24:45,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:24:45,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:24:50,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:24:51,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 12:24:51,297 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:24:51,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944890091] [2024-11-02 12:24:51,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944890091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:24:51,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:24:51,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:24:51,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338884742] [2024-11-02 12:24:51,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:24:51,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:24:51,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:24:51,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:24:51,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:24:51,303 INFO L87 Difference]: Start difference. First operand 669 states and 905 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:24:53,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 12:24:54,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 12:24:54,521 INFO L93 Difference]: Finished difference Result 671 states and 906 transitions. [2024-11-02 12:24:54,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 12:24:54,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-02 12:24:54,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 12:24:54,532 INFO L225 Difference]: With dead ends: 671 [2024-11-02 12:24:54,532 INFO L226 Difference]: Without dead ends: 662 [2024-11-02 12:24:54,533 INFO L431 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 [2024-11-02 12:24:54,536 INFO L432 NwaCegarLoop]: 717 mSDtfsCounter, 798 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 798 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-02 12:24:54,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [798 Valid, 717 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 86 Invalid, 1 Unknown, 0 Unchecked, 3.2s Time] [2024-11-02 12:24:54,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-11-02 12:24:54,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662. [2024-11-02 12:24:54,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 447 states have (on average 1.279642058165548) internal successors, (572), 453 states have internal predecessors, (572), 162 states have call successors, (162), 53 states have call predecessors, (162), 52 states have return successors, (160), 159 states have call predecessors, (160), 160 states have call successors, (160) [2024-11-02 12:24:54,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 894 transitions. [2024-11-02 12:24:54,632 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 894 transitions. Word has length 11 [2024-11-02 12:24:54,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 12:24:54,632 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 894 transitions. [2024-11-02 12:24:54,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-02 12:24:54,633 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 894 transitions. [2024-11-02 12:24:54,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-02 12:24:54,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:24:54,636 INFO L215 NwaCegarLoop]: trace histogram [5, 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] [2024-11-02 12:24:54,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-02 12:24:54,637 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:24:54,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:24:54,642 INFO L85 PathProgramCache]: Analyzing trace with hash 175201674, now seen corresponding path program 1 times [2024-11-02 12:24:54,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:24:54,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542744698] [2024-11-02 12:24:54,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:24:54,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms