./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da50bea-e65c-4865-8713-cd98361384b4/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da50bea-e65c-4865-8713-cd98361384b4/bin/uautomizer-verify-uCwYo4JHxu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da50bea-e65c-4865-8713-cd98361384b4/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da50bea-e65c-4865-8713-cd98361384b4/bin/uautomizer-verify-uCwYo4JHxu/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da50bea-e65c-4865-8713-cd98361384b4/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da50bea-e65c-4865-8713-cd98361384b4/bin/uautomizer-verify-uCwYo4JHxu --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2ecffe8a5f60817da30887d6b361935e398ff8703e4fd5b17747e558625c4088 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 07:44:24,660 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:44:24,767 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da50bea-e65c-4865-8713-cd98361384b4/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-19 07:44:24,773 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:44:24,774 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:44:24,805 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:44:24,806 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:44:24,807 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:44:24,808 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:44:24,809 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:44:24,810 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:44:24,810 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:44:24,811 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:44:24,812 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:44:24,813 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:44:24,814 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:44:24,814 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:44:24,815 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:44:24,816 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:44:24,817 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:44:24,817 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:44:24,818 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:44:24,819 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:44:24,820 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:44:24,821 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:44:24,821 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:44:24,822 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:44:24,823 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:44:24,823 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:44:24,824 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:44:24,825 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:44:24,825 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:44:24,826 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:44:24,826 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:44:24,827 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:44:24,827 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:44:24,828 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_3da50bea-e65c-4865-8713-cd98361384b4/bin/uautomizer-verify-uCwYo4JHxu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da50bea-e65c-4865-8713-cd98361384b4/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ecffe8a5f60817da30887d6b361935e398ff8703e4fd5b17747e558625c4088 [2023-11-19 07:44:25,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:44:25,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:44:25,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:44:25,224 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:44:25,225 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:44:25,227 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da50bea-e65c-4865-8713-cd98361384b4/bin/uautomizer-verify-uCwYo4JHxu/../../sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2023-11-19 07:44:28,457 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:44:29,163 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:44:29,163 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da50bea-e65c-4865-8713-cd98361384b4/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2023-11-19 07:44:29,234 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da50bea-e65c-4865-8713-cd98361384b4/bin/uautomizer-verify-uCwYo4JHxu/data/6d4aa3f17/d50bec835ca745c2a2297061746db0d3/FLAG91fcc197f [2023-11-19 07:44:29,255 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da50bea-e65c-4865-8713-cd98361384b4/bin/uautomizer-verify-uCwYo4JHxu/data/6d4aa3f17/d50bec835ca745c2a2297061746db0d3 [2023-11-19 07:44:29,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:44:29,270 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:44:29,274 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:44:29,276 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:44:29,282 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:44:29,283 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:44:29" (1/1) ... [2023-11-19 07:44:29,285 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16b245c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:29, skipping insertion in model container [2023-11-19 07:44:29,285 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:44:29" (1/1) ... [2023-11-19 07:44:29,495 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:44:32,368 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_3da50bea-e65c-4865-8713-cd98361384b4/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[331724,331737] [2023-11-19 07:44:32,536 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:44:32,587 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:44:32,791 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [4162-4163] [2023-11-19 07:44:32,794 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bsrq %1,%q0": "+r" (bitpos): "rm" (x)); [4172] [2023-11-19 07:44:32,794 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [4179] [2023-11-19 07:44:32,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [4210] [2023-11-19 07:44:32,798 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4213] [2023-11-19 07:44:32,799 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4216] [2023-11-19 07:44:32,799 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4219] [2023-11-19 07:44:32,831 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/scatterlist.h"), "i" (65), "i" (12UL)); [4519-4520] [2023-11-19 07:44:32,834 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/scatterlist.h"), "i" (67), "i" (12UL)); [4527-4528] [2023-11-19 07:44:32,835 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/scatterlist.h"), "i" (68), "i" (12UL)); [4535-4536] [2023-11-19 07:44:32,837 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/scatterlist.h"), "i" (98), "i" (12UL)); [4562-4563] [2023-11-19 07:44:32,838 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/linux/scatterlist.h"), "i" (99), "i" (12UL)); [4570-4571] [2023-11-19 07:44:33,347 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_3da50bea-e65c-4865-8713-cd98361384b4/sv-benchmarks/c/ldv-challenges/linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i[331724,331737] [2023-11-19 07:44:33,371 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:44:33,489 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:44:33,489 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:44:33,490 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:44:33,490 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 07:44:33,499 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:44:33,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:33 WrapperNode [2023-11-19 07:44:33,500 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:44:33,502 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:44:33,503 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:44:33,503 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:44:33,513 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:33" (1/1) ... [2023-11-19 07:44:33,670 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:33" (1/1) ... [2023-11-19 07:44:34,091 INFO L138 Inliner]: procedures = 273, calls = 4220, calls flagged for inlining = 109, calls inlined = 100, statements flattened = 9859 [2023-11-19 07:44:34,092 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:44:34,093 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:44:34,093 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:44:34,093 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:44:34,104 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:33" (1/1) ... [2023-11-19 07:44:34,104 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:33" (1/1) ... [2023-11-19 07:44:34,199 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:33" (1/1) ... [2023-11-19 07:44:34,200 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:33" (1/1) ... [2023-11-19 07:44:34,538 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:33" (1/1) ... [2023-11-19 07:44:34,581 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:33" (1/1) ... [2023-11-19 07:44:34,616 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:33" (1/1) ... [2023-11-19 07:44:34,648 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:33" (1/1) ... [2023-11-19 07:44:34,705 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:44:34,706 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:44:34,706 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:44:34,707 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:44:34,708 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:33" (1/1) ... [2023-11-19 07:44:34,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:44:34,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da50bea-e65c-4865-8713-cd98361384b4/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:44:34,745 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da50bea-e65c-4865-8713-cd98361384b4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:44:34,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3da50bea-e65c-4865-8713-cd98361384b4/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:44:34,789 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-11-19 07:44:34,790 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-11-19 07:44:34,790 INFO L130 BoogieDeclarations]: Found specification of procedure osst_log_options [2023-11-19 07:44:34,863 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_log_options [2023-11-19 07:44:34,863 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-19 07:44:34,863 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-19 07:44:34,863 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-19 07:44:34,863 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-19 07:44:34,864 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-19 07:44:34,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 07:44:34,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 07:44:34,864 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_behind_check [2023-11-19 07:44:34,864 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_behind_check [2023-11-19 07:44:34,864 INFO L130 BoogieDeclarations]: Found specification of procedure lowmem_page_address [2023-11-19 07:44:34,864 INFO L138 BoogieDeclarations]: Found implementation of procedure lowmem_page_address [2023-11-19 07:44:34,864 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_block_when_processing_errors [2023-11-19 07:44:34,865 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_block_when_processing_errors [2023-11-19 07:44:34,865 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-19 07:44:34,865 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-19 07:44:34,865 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock [2023-11-19 07:44:34,865 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock [2023-11-19 07:44:34,865 INFO L130 BoogieDeclarations]: Found specification of procedure osst_release_request [2023-11-19 07:44:34,865 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_release_request [2023-11-19 07:44:34,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 07:44:34,866 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 07:44:34,866 INFO L130 BoogieDeclarations]: Found specification of procedure osst_set_frame_position [2023-11-19 07:44:34,866 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_set_frame_position [2023-11-19 07:44:34,866 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_header [2023-11-19 07:44:34,866 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_header [2023-11-19 07:44:34,866 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_osst_tape [2023-11-19 07:44:34,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_osst_tape [2023-11-19 07:44:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_lock_of_osst_tape [2023-11-19 07:44:34,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_lock_of_osst_tape [2023-11-19 07:44:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 07:44:34,867 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 07:44:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 07:44:34,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 07:44:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2023-11-19 07:44:34,869 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2023-11-19 07:44:34,870 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_frame [2023-11-19 07:44:34,870 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_frame [2023-11-19 07:44:34,870 INFO L130 BoogieDeclarations]: Found specification of procedure tape_name [2023-11-19 07:44:34,870 INFO L138 BoogieDeclarations]: Found implementation of procedure tape_name [2023-11-19 07:44:34,870 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-11-19 07:44:34,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-11-19 07:44:34,871 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_device_put [2023-11-19 07:44:34,871 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_device_put [2023-11-19 07:44:34,871 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 07:44:34,871 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 07:44:34,872 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_write_buffer [2023-11-19 07:44:34,872 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_write_buffer [2023-11-19 07:44:34,873 INFO L130 BoogieDeclarations]: Found specification of procedure osst_initiate_read [2023-11-19 07:44:34,873 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_initiate_read [2023-11-19 07:44:34,873 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-19 07:44:34,874 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-19 07:44:34,874 INFO L130 BoogieDeclarations]: Found specification of procedure scsi_ioctl [2023-11-19 07:44:34,875 INFO L138 BoogieDeclarations]: Found implementation of procedure scsi_ioctl [2023-11-19 07:44:34,877 INFO L130 BoogieDeclarations]: Found specification of procedure osst_seek_logical_blk [2023-11-19 07:44:34,877 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_seek_logical_blk [2023-11-19 07:44:34,877 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_osst_int_mutex [2023-11-19 07:44:34,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_osst_int_mutex [2023-11-19 07:44:34,878 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_trailer [2023-11-19 07:44:34,892 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_trailer [2023-11-19 07:44:34,892 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_drive_buffer [2023-11-19 07:44:34,892 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_drive_buffer [2023-11-19 07:44:34,893 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:44:34,893 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 07:44:34,893 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_osst_int_mutex [2023-11-19 07:44:34,893 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_osst_int_mutex [2023-11-19 07:44:34,894 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 07:44:34,894 INFO L130 BoogieDeclarations]: Found specification of procedure osst_int_ioctl [2023-11-19 07:44:34,894 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_int_ioctl [2023-11-19 07:44:34,894 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_pages [2023-11-19 07:44:34,894 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_pages [2023-11-19 07:44:34,894 INFO L130 BoogieDeclarations]: Found specification of procedure do_door_lock [2023-11-19 07:44:34,895 INFO L138 BoogieDeclarations]: Found implementation of procedure do_door_lock [2023-11-19 07:44:34,895 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:44:34,895 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_to_buffer [2023-11-19 07:44:34,896 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_to_buffer [2023-11-19 07:44:34,896 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_analyze_headers [2023-11-19 07:44:34,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_analyze_headers [2023-11-19 07:44:34,897 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-19 07:44:34,897 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-19 07:44:34,898 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_logical_frame [2023-11-19 07:44:34,898 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_logical_frame [2023-11-19 07:44:34,898 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2023-11-19 07:44:34,899 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2023-11-19 07:44:34,899 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2023-11-19 07:44:34,899 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2023-11-19 07:44:34,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:44:34,899 INFO L130 BoogieDeclarations]: Found specification of procedure osst_position_tape_and_confirm [2023-11-19 07:44:34,899 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_position_tape_and_confirm [2023-11-19 07:44:34,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:44:34,900 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-19 07:44:34,900 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-19 07:44:34,900 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 07:44:34,900 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 07:44:34,901 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-19 07:44:34,901 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-19 07:44:34,901 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 07:44:34,901 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 07:44:34,902 INFO L130 BoogieDeclarations]: Found specification of procedure osst_verify_frame [2023-11-19 07:44:34,902 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_verify_frame [2023-11-19 07:44:34,902 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2023-11-19 07:44:34,902 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2023-11-19 07:44:34,903 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_ready [2023-11-19 07:44:34,903 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_ready [2023-11-19 07:44:34,903 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reset_header [2023-11-19 07:44:34,904 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reset_header [2023-11-19 07:44:34,904 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-19 07:44:34,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-19 07:44:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 07:44:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-19 07:44:34,905 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-19 07:44:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure osst_do_scsi [2023-11-19 07:44:34,905 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_do_scsi [2023-11-19 07:44:34,905 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2023-11-19 07:44:34,906 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2023-11-19 07:44:34,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 07:44:34,906 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev [2023-11-19 07:44:34,906 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev [2023-11-19 07:44:34,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:44:34,906 INFO L130 BoogieDeclarations]: Found specification of procedure osst_chk_result [2023-11-19 07:44:34,907 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_chk_result [2023-11-19 07:44:34,907 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_add [2023-11-19 07:44:34,907 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_add [2023-11-19 07:44:34,907 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 07:44:34,908 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 07:44:34,908 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_backward [2023-11-19 07:44:34,908 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_backward [2023-11-19 07:44:34,908 INFO L130 BoogieDeclarations]: Found specification of procedure osst_read_back_buffer_and_rewrite [2023-11-19 07:44:34,909 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_read_back_buffer_and_rewrite [2023-11-19 07:44:34,909 INFO L130 BoogieDeclarations]: Found specification of procedure cross_eof [2023-11-19 07:44:34,909 INFO L138 BoogieDeclarations]: Found implementation of procedure cross_eof [2023-11-19 07:44:34,909 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_cleanup [2023-11-19 07:44:34,909 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_cleanup [2023-11-19 07:44:34,910 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 07:44:34,910 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 07:44:34,910 INFO L130 BoogieDeclarations]: Found specification of procedure append_to_buffer [2023-11-19 07:44:34,911 INFO L138 BoogieDeclarations]: Found implementation of procedure append_to_buffer [2023-11-19 07:44:34,915 INFO L130 BoogieDeclarations]: Found specification of procedure vfree [2023-11-19 07:44:34,915 INFO L138 BoogieDeclarations]: Found implementation of procedure vfree [2023-11-19 07:44:34,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:44:34,916 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-19 07:44:34,916 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-19 07:44:34,932 INFO L130 BoogieDeclarations]: Found specification of procedure osst_reposition_and_retry [2023-11-19 07:44:34,933 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_reposition_and_retry [2023-11-19 07:44:34,933 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_filemark [2023-11-19 07:44:34,934 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_filemark [2023-11-19 07:44:34,940 INFO L130 BoogieDeclarations]: Found specification of procedure osst_sysfs_destroy [2023-11-19 07:44:34,940 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_sysfs_destroy [2023-11-19 07:44:34,941 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 07:44:34,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 07:44:34,941 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2023-11-19 07:44:34,941 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2023-11-19 07:44:34,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:44:34,942 INFO L130 BoogieDeclarations]: Found specification of procedure vmalloc [2023-11-19 07:44:34,942 INFO L138 BoogieDeclarations]: Found implementation of procedure vmalloc [2023-11-19 07:44:34,942 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock [2023-11-19 07:44:34,942 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock [2023-11-19 07:44:34,942 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-19 07:44:34,942 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-19 07:44:34,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:44:34,943 INFO L130 BoogieDeclarations]: Found specification of procedure __osst_write_header [2023-11-19 07:44:34,943 INFO L138 BoogieDeclarations]: Found implementation of procedure __osst_write_header [2023-11-19 07:44:34,943 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_frame [2023-11-19 07:44:34,944 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_frame [2023-11-19 07:44:34,944 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2023-11-19 07:44:34,944 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2023-11-19 07:44:34,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:44:34,944 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-19 07:44:34,944 INFO L130 BoogieDeclarations]: Found specification of procedure osst_get_frame_position [2023-11-19 07:44:34,945 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_get_frame_position [2023-11-19 07:44:34,945 INFO L130 BoogieDeclarations]: Found specification of procedure osst_flush_buffer [2023-11-19 07:44:34,945 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_flush_buffer [2023-11-19 07:44:34,945 INFO L130 BoogieDeclarations]: Found specification of procedure osst_copy_from_buffer [2023-11-19 07:44:34,945 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_copy_from_buffer [2023-11-19 07:44:34,945 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-19 07:44:34,946 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-19 07:44:34,946 INFO L130 BoogieDeclarations]: Found specification of procedure iminor [2023-11-19 07:44:34,946 INFO L138 BoogieDeclarations]: Found implementation of procedure iminor [2023-11-19 07:44:34,946 INFO L130 BoogieDeclarations]: Found specification of procedure normalize_buffer [2023-11-19 07:44:34,946 INFO L138 BoogieDeclarations]: Found implementation of procedure normalize_buffer [2023-11-19 07:44:34,946 INFO L130 BoogieDeclarations]: Found specification of procedure osst_init_aux [2023-11-19 07:44:34,947 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_init_aux [2023-11-19 07:44:34,948 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_error_recovery [2023-11-19 07:44:34,948 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_error_recovery [2023-11-19 07:44:34,948 INFO L130 BoogieDeclarations]: Found specification of procedure osst_write_eod [2023-11-19 07:44:34,948 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_write_eod [2023-11-19 07:44:34,948 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-19 07:44:34,949 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-19 07:44:34,949 INFO L130 BoogieDeclarations]: Found specification of procedure osst_space_over_filemarks_forward_slow [2023-11-19 07:44:34,949 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_space_over_filemarks_forward_slow [2023-11-19 07:44:34,949 INFO L130 BoogieDeclarations]: Found specification of procedure put_disk [2023-11-19 07:44:34,949 INFO L138 BoogieDeclarations]: Found implementation of procedure put_disk [2023-11-19 07:44:34,949 INFO L130 BoogieDeclarations]: Found specification of procedure sg_set_page [2023-11-19 07:44:34,950 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_set_page [2023-11-19 07:44:34,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:44:34,950 INFO L130 BoogieDeclarations]: Found specification of procedure osst_recover_wait_frame [2023-11-19 07:44:34,950 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_recover_wait_frame [2023-11-19 07:44:34,950 INFO L130 BoogieDeclarations]: Found specification of procedure osst_wait_frame [2023-11-19 07:44:34,950 INFO L138 BoogieDeclarations]: Found implementation of procedure osst_wait_frame [2023-11-19 07:44:34,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:44:34,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:44:34,951 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-19 07:44:34,951 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-19 07:44:36,144 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:44:36,148 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:44:54,481 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:44:54,523 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:44:54,523 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 07:44:54,542 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:44:54 BoogieIcfgContainer [2023-11-19 07:44:54,542 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:44:54,545 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:44:54,546 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:44:54,550 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:44:54,550 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:44:29" (1/3) ... [2023-11-19 07:44:54,552 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5294623a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:44:54, skipping insertion in model container [2023-11-19 07:44:54,552 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:44:33" (2/3) ... [2023-11-19 07:44:54,552 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5294623a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:44:54, skipping insertion in model container [2023-11-19 07:44:54,553 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:44:54" (3/3) ... [2023-11-19 07:44:54,554 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--scsi--osst.ko-ldv_main0_sequence_infinite_withcheck_stateful.cil.out.i [2023-11-19 07:44:54,580 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:44:54,581 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 07:44:54,749 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:44:54,758 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=PETRI_NET, 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;@160d8f70, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:44:54,759 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 07:44:54,781 INFO L276 IsEmpty]: Start isEmpty. Operand has 3438 states, 2606 states have (on average 1.453184957789716) internal successors, (3787), 2631 states have internal predecessors, (3787), 737 states have call successors, (737), 93 states have call predecessors, (737), 93 states have return successors, (737), 734 states have call predecessors, (737), 737 states have call successors, (737) [2023-11-19 07:44:54,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-19 07:44:54,800 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:44:54,801 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:44:54,802 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:44:54,811 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:44:54,811 INFO L85 PathProgramCache]: Analyzing trace with hash 75507521, now seen corresponding path program 1 times [2023-11-19 07:44:54,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:44:54,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820221647] [2023-11-19 07:44:54,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:44:54,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:44:55,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:55,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:44:55,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:55,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:44:55,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:55,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-19 07:44:55,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:55,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:44:55,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:55,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:44:55,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:44:55,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:44:55,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:44:55,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820221647] [2023-11-19 07:44:55,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820221647] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:44:55,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:44:55,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:44:55,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506506446] [2023-11-19 07:44:55,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:44:55,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:44:55,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:44:55,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:44:55,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:44:55,935 INFO L87 Difference]: Start difference. First operand has 3438 states, 2606 states have (on average 1.453184957789716) internal successors, (3787), 2631 states have internal predecessors, (3787), 737 states have call successors, (737), 93 states have call predecessors, (737), 93 states have return successors, (737), 734 states have call predecessors, (737), 737 states have call successors, (737) Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-19 07:45:03,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:45:03,764 INFO L93 Difference]: Finished difference Result 7110 states and 11192 transitions. [2023-11-19 07:45:03,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-19 07:45:03,770 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 43 [2023-11-19 07:45:03,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:45:03,887 INFO L225 Difference]: With dead ends: 7110 [2023-11-19 07:45:03,888 INFO L226 Difference]: Without dead ends: 3671 [2023-11-19 07:45:03,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:45:03,944 INFO L413 NwaCegarLoop]: 4608 mSDtfsCounter, 5633 mSDsluCounter, 3199 mSDsCounter, 0 mSdLazyCounter, 1322 mSolverCounterSat, 1220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6131 SdHoareTripleChecker+Valid, 7807 SdHoareTripleChecker+Invalid, 2542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1220 IncrementalHoareTripleChecker+Valid, 1322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.1s IncrementalHoareTripleChecker+Time [2023-11-19 07:45:03,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6131 Valid, 7807 Invalid, 2542 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1220 Valid, 1322 Invalid, 0 Unknown, 0 Unchecked, 7.1s Time] [2023-11-19 07:45:03,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3671 states. [2023-11-19 07:45:04,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3671 to 3427. [2023-11-19 07:45:04,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3427 states, 2597 states have (on average 1.4435887562572198) internal successors, (3749), 2620 states have internal predecessors, (3749), 737 states have call successors, (737), 93 states have call predecessors, (737), 92 states have return successors, (729), 726 states have call predecessors, (729), 729 states have call successors, (729) [2023-11-19 07:45:04,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3427 states to 3427 states and 5215 transitions. [2023-11-19 07:45:04,384 INFO L78 Accepts]: Start accepts. Automaton has 3427 states and 5215 transitions. Word has length 43 [2023-11-19 07:45:04,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:45:04,386 INFO L495 AbstractCegarLoop]: Abstraction has 3427 states and 5215 transitions. [2023-11-19 07:45:04,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2023-11-19 07:45:04,387 INFO L276 IsEmpty]: Start isEmpty. Operand 3427 states and 5215 transitions. [2023-11-19 07:45:04,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-11-19 07:45:04,391 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:45:04,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:45:04,392 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:45:04,392 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 07:45:04,393 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:45:04,393 INFO L85 PathProgramCache]: Analyzing trace with hash 777107395, now seen corresponding path program 1 times [2023-11-19 07:45:04,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:45:04,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014097140] [2023-11-19 07:45:04,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:45:04,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:45:04,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:04,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2023-11-19 07:45:04,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:04,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-19 07:45:04,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:04,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-11-19 07:45:04,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:04,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2023-11-19 07:45:04,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:04,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:45:04,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:45:04,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 07:45:04,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:45:04,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014097140] [2023-11-19 07:45:04,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014097140] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:45:04,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:45:04,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:45:04,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662449734] [2023-11-19 07:45:04,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:45:04,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-19 07:45:04,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:45:04,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-19 07:45:04,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-19 07:45:04,858 INFO L87 Difference]: Start difference. First operand 3427 states and 5215 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5)