./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--misc--usbtest.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 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_5da4f921-1dd0-489c-8644-97f8c92d4eae/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da4f921-1dd0-489c-8644-97f8c92d4eae/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da4f921-1dd0-489c-8644-97f8c92d4eae/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da4f921-1dd0-489c-8644-97f8c92d4eae/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--misc--usbtest.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da4f921-1dd0-489c-8644-97f8c92d4eae/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da4f921-1dd0-489c-8644-97f8c92d4eae/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 045b49e5089f039c3b28eef4cf3a9c907cbda8f22472af0061e42bad883dd2f9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:09:33,759 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:09:33,891 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da4f921-1dd0-489c-8644-97f8c92d4eae/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-21 22:09:33,902 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:09:33,903 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:09:33,946 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:09:33,946 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:09:33,947 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:09:33,948 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:09:33,953 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:09:33,954 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:09:33,954 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:09:33,955 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:09:33,957 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:09:33,958 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:09:33,958 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:09:33,959 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:09:33,959 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:09:33,960 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:09:33,960 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:09:33,961 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:09:33,961 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:09:33,962 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 22:09:33,962 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 22:09:33,963 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:09:33,963 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:09:33,964 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:09:33,965 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:09:33,965 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:09:33,965 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:09:33,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:09:33,967 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:09:33,968 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:09:33,968 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:09:33,968 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:09:33,968 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:09:33,969 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:09:33,969 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:09:33,969 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:09:33,969 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:09:33,970 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:09:33,970 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_5da4f921-1dd0-489c-8644-97f8c92d4eae/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da4f921-1dd0-489c-8644-97f8c92d4eae/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 045b49e5089f039c3b28eef4cf3a9c907cbda8f22472af0061e42bad883dd2f9 [2023-11-21 22:09:34,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:09:34,338 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:09:34,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:09:34,343 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:09:34,343 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:09:34,345 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da4f921-1dd0-489c-8644-97f8c92d4eae/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--misc--usbtest.ko-entry_point.cil.out.i [2023-11-21 22:09:37,427 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:09:38,013 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:09:38,014 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da4f921-1dd0-489c-8644-97f8c92d4eae/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--misc--usbtest.ko-entry_point.cil.out.i [2023-11-21 22:09:38,057 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da4f921-1dd0-489c-8644-97f8c92d4eae/bin/uautomizer-verify-bycVGegfSx/data/bce8ccf72/2a83c499d38643c08339acb7fa0e3b32/FLAG79c820eef [2023-11-21 22:09:38,075 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da4f921-1dd0-489c-8644-97f8c92d4eae/bin/uautomizer-verify-bycVGegfSx/data/bce8ccf72/2a83c499d38643c08339acb7fa0e3b32 [2023-11-21 22:09:38,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:09:38,083 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:09:38,086 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:09:38,086 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:09:38,092 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:09:38,092 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:09:38" (1/1) ... [2023-11-21 22:09:38,094 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c80f358 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:38, skipping insertion in model container [2023-11-21 22:09:38,094 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:09:38" (1/1) ... [2023-11-21 22:09:38,227 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:09:38,791 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3528] [2023-11-21 22:09:38,791 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3529-3530] [2023-11-21 22:09:39,955 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:09:39,982 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:09:40,075 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3528] [2023-11-21 22:09:40,075 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3529-3530] [2023-11-21 22:09:40,079 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; incl %0": "+m" (v->counter)); [3625] [2023-11-21 22:09:40,081 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; decl %0": "+m" (v->counter)); [3632] [2023-11-21 22:09:40,082 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; decl %0; sete %1": "+m" (v->counter), "=qm" (c): : "memory"); [3640-3641] [2023-11-21 22:09:40,092 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)); [3856-3857] [2023-11-21 22:09:40,092 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)); [3864-3865] [2023-11-21 22:09:40,093 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)); [3872-3873] [2023-11-21 22:09:40,095 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)); [3899-3900] [2023-11-21 22:09:40,095 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)); [3907-3908] [2023-11-21 22:09:40,097 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" (115), "i" (12UL)); [3931-3932] [2023-11-21 22:09:40,472 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:09:40,539 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:09:40,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:40 WrapperNode [2023-11-21 22:09:40,541 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:09:40,542 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:09:40,542 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:09:40,542 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:09:40,550 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:40" (1/1) ... [2023-11-21 22:09:40,645 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:40" (1/1) ... [2023-11-21 22:09:40,840 INFO L138 Inliner]: procedures = 189, calls = 1842, calls flagged for inlining = 80, calls inlined = 71, statements flattened = 4990 [2023-11-21 22:09:40,840 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:09:40,841 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:09:40,841 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:09:40,842 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:09:40,853 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:40" (1/1) ... [2023-11-21 22:09:40,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:40" (1/1) ... [2023-11-21 22:09:40,934 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:40" (1/1) ... [2023-11-21 22:09:41,536 WARN L106 HeapSplitter]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure #Ultimate.C_memset is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2023-11-21 22:09:41,537 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:40" (1/1) ... [2023-11-21 22:09:41,537 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:40" (1/1) ... [2023-11-21 22:09:41,689 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:40" (1/1) ... [2023-11-21 22:09:41,735 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:40" (1/1) ... [2023-11-21 22:09:41,765 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:40" (1/1) ... [2023-11-21 22:09:41,788 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:40" (1/1) ... [2023-11-21 22:09:41,826 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:09:41,827 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:09:41,828 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:09:41,828 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:09:41,829 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:40" (1/1) ... [2023-11-21 22:09:41,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:09:41,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da4f921-1dd0-489c-8644-97f8c92d4eae/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:09:41,867 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da4f921-1dd0-489c-8644-97f8c92d4eae/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:09:41,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5da4f921-1dd0-489c-8644-97f8c92d4eae/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:09:41,911 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2023-11-21 22:09:41,911 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2023-11-21 22:09:41,912 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-21 22:09:41,912 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-21 22:09:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-21 22:09:41,913 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-21 22:09:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-11-21 22:09:41,913 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-11-21 22:09:41,913 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-21 22:09:41,914 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-21 22:09:41,914 INFO L130 BoogieDeclarations]: Found specification of procedure free_sglist [2023-11-21 22:09:41,915 INFO L138 BoogieDeclarations]: Found implementation of procedure free_sglist [2023-11-21 22:09:41,915 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2023-11-21 22:09:41,916 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2023-11-21 22:09:41,916 INFO L130 BoogieDeclarations]: Found specification of procedure test_iso_queue [2023-11-21 22:09:41,917 INFO L138 BoogieDeclarations]: Found implementation of procedure test_iso_queue [2023-11-21 22:09:41,917 INFO L130 BoogieDeclarations]: Found specification of procedure simple_check_buf [2023-11-21 22:09:41,917 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_check_buf [2023-11-21 22:09:41,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-21 22:09:41,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-21 22:09:41,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:09:41,920 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2023-11-21 22:09:41,920 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2023-11-21 22:09:41,920 INFO L130 BoogieDeclarations]: Found specification of procedure perform_sglist [2023-11-21 22:09:41,921 INFO L138 BoogieDeclarations]: Found implementation of procedure perform_sglist [2023-11-21 22:09:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure test_unaligned_bulk [2023-11-21 22:09:41,921 INFO L138 BoogieDeclarations]: Found implementation of procedure test_unaligned_bulk [2023-11-21 22:09:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-21 22:09:41,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-21 22:09:41,921 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_sglist [2023-11-21 22:09:41,921 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_sglist [2023-11-21 22:09:41,922 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-21 22:09:41,922 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-21 22:09:41,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 22:09:41,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 22:09:41,922 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-11-21 22:09:41,922 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-11-21 22:09:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-21 22:09:41,923 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-21 22:09:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-21 22:09:41,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-21 22:09:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-21 22:09:41,923 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-21 22:09:41,923 INFO L130 BoogieDeclarations]: Found specification of procedure set_altsetting [2023-11-21 22:09:41,924 INFO L138 BoogieDeclarations]: Found implementation of procedure set_altsetting [2023-11-21 22:09:41,924 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2023-11-21 22:09:41,924 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2023-11-21 22:09:41,924 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:09:41,925 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-21 22:09:41,925 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-21 22:09:41,925 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-11-21 22:09:41,926 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-11-21 22:09:41,926 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-21 22:09:41,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-21 22:09:41,927 INFO L130 BoogieDeclarations]: Found specification of procedure verify_not_halted [2023-11-21 22:09:41,927 INFO L138 BoogieDeclarations]: Found implementation of procedure verify_not_halted [2023-11-21 22:09:41,928 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-11-21 22:09:41,928 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-11-21 22:09:41,928 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-21 22:09:41,928 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-21 22:09:41,928 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 22:09:41,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 22:09:41,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 22:09:41,930 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 22:09:41,930 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2023-11-21 22:09:41,930 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2023-11-21 22:09:41,930 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:09:41,930 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:09:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure test_halt [2023-11-21 22:09:41,931 INFO L138 BoogieDeclarations]: Found implementation of procedure test_halt [2023-11-21 22:09:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure usbtest_alloc_urb [2023-11-21 22:09:41,931 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtest_alloc_urb [2023-11-21 22:09:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure unlink1 [2023-11-21 22:09:41,931 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink1 [2023-11-21 22:09:41,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:09:41,932 INFO L130 BoogieDeclarations]: Found specification of procedure ctrl_out [2023-11-21 22:09:41,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ctrl_out [2023-11-21 22:09:41,933 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-21 22:09:41,933 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-21 22:09:41,933 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2023-11-21 22:09:41,933 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2023-11-21 22:09:41,933 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_status [2023-11-21 22:09:41,933 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_status [2023-11-21 22:09:41,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:09:41,934 INFO L130 BoogieDeclarations]: Found specification of procedure is_good_config [2023-11-21 22:09:41,934 INFO L138 BoogieDeclarations]: Found implementation of procedure is_good_config [2023-11-21 22:09:41,934 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-11-21 22:09:41,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-11-21 22:09:41,934 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2023-11-21 22:09:41,934 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2023-11-21 22:09:41,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:09:41,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:09:41,935 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2023-11-21 22:09:41,935 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2023-11-21 22:09:41,935 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-21 22:09:41,935 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-21 22:09:41,935 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2023-11-21 22:09:41,936 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2023-11-21 22:09:41,936 INFO L130 BoogieDeclarations]: Found specification of procedure testdev_to_usbdev [2023-11-21 22:09:41,936 INFO L138 BoogieDeclarations]: Found implementation of procedure testdev_to_usbdev [2023-11-21 22:09:41,937 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2023-11-21 22:09:41,937 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2023-11-21 22:09:41,937 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:09:41,937 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_simple [2023-11-21 22:09:41,937 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_simple [2023-11-21 22:09:41,938 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-11-21 22:09:41,939 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-11-21 22:09:41,939 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2023-11-21 22:09:41,939 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2023-11-21 22:09:41,939 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-21 22:09:41,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-21 22:09:41,939 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-21 22:09:41,939 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-21 22:09:41,940 INFO L130 BoogieDeclarations]: Found specification of procedure simple_io [2023-11-21 22:09:41,940 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_io [2023-11-21 22:09:41,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:09:41,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 22:09:41,940 INFO L130 BoogieDeclarations]: Found specification of procedure simple_alloc_urb [2023-11-21 22:09:41,941 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_alloc_urb [2023-11-21 22:09:41,941 INFO L130 BoogieDeclarations]: Found specification of procedure simple_free_urb [2023-11-21 22:09:41,941 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_free_urb [2023-11-21 22:09:41,941 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-21 22:09:41,941 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-21 22:09:41,941 INFO L130 BoogieDeclarations]: Found specification of procedure simple_fill_buf [2023-11-21 22:09:41,941 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_fill_buf [2023-11-21 22:09:41,942 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2023-11-21 22:09:41,942 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2023-11-21 22:09:41,942 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-21 22:09:41,943 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-21 22:09:41,943 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-21 22:09:41,943 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-21 22:09:41,943 INFO L130 BoogieDeclarations]: Found specification of procedure usbtest_ioctl [2023-11-21 22:09:41,943 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtest_ioctl [2023-11-21 22:09:41,943 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_offset [2023-11-21 22:09:41,944 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_offset [2023-11-21 22:09:41,944 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-21 22:09:41,944 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-21 22:09:41,945 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-21 22:09:41,949 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-21 22:09:41,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:09:41,950 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2023-11-21 22:09:41,950 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2023-11-21 22:09:41,950 INFO L130 BoogieDeclarations]: Found specification of procedure usbtest_disconnect [2023-11-21 22:09:41,951 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtest_disconnect [2023-11-21 22:09:41,952 INFO L130 BoogieDeclarations]: Found specification of procedure check_guard_bytes [2023-11-21 22:09:41,952 INFO L138 BoogieDeclarations]: Found implementation of procedure check_guard_bytes [2023-11-21 22:09:41,953 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-11-21 22:09:41,958 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-11-21 22:09:41,958 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-11-21 22:09:41,958 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-11-21 22:09:41,959 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-21 22:09:41,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-21 22:09:41,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:09:41,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:09:41,959 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_descriptor [2023-11-21 22:09:41,959 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_descriptor [2023-11-21 22:09:42,724 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:09:42,728 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:09:43,536 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-21 22:09:47,215 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:09:49,557 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:09:49,557 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:09:49,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:09:49 BoogieIcfgContainer [2023-11-21 22:09:49,561 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:09:49,565 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:09:49,565 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:09:49,570 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:09:49,570 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:09:38" (1/3) ... [2023-11-21 22:09:49,572 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17fff09a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:09:49, skipping insertion in model container [2023-11-21 22:09:49,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:09:40" (2/3) ... [2023-11-21 22:09:49,573 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17fff09a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:09:49, skipping insertion in model container [2023-11-21 22:09:49,573 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:09:49" (3/3) ... [2023-11-21 22:09:49,574 INFO L112 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--usb--misc--usbtest.ko-entry_point.cil.out.i [2023-11-21 22:09:49,597 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:09:49,597 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 86 error locations. [2023-11-21 22:09:49,703 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:09:49,711 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;@29b79881, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:09:49,711 INFO L358 AbstractCegarLoop]: Starting to check reachability of 86 error locations. [2023-11-21 22:09:49,724 INFO L276 IsEmpty]: Start isEmpty. Operand has 1386 states, 882 states have (on average 1.4569160997732427) internal successors, (1285), 982 states have internal predecessors, (1285), 346 states have call successors, (346), 72 states have call predecessors, (346), 71 states have return successors, (343), 340 states have call predecessors, (343), 343 states have call successors, (343) [2023-11-21 22:09:49,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-21 22:09:49,738 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:09:49,739 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 22:09:49,739 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [free_sglistErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, free_sglistErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, free_sglistErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-21 22:09:49,747 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:09:49,748 INFO L85 PathProgramCache]: Analyzing trace with hash 252559526, now seen corresponding path program 1 times [2023-11-21 22:09:49,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:09:49,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026677399] [2023-11-21 22:09:49,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:49,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:09:50,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:09:50,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:09:50,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:09:50,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 22:09:50,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:09:50,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:09:50,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:09:50,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-21 22:09:50,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:09:50,464 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-21 22:09:50,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:09:50,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026677399] [2023-11-21 22:09:50,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026677399] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:09:50,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:09:50,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:09:50,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736899851] [2023-11-21 22:09:50,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:09:50,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:09:50,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:09:50,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:09:50,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:09:50,520 INFO L87 Difference]: Start difference. First operand has 1386 states, 882 states have (on average 1.4569160997732427) internal successors, (1285), 982 states have internal predecessors, (1285), 346 states have call successors, (346), 72 states have call predecessors, (346), 71 states have return successors, (343), 340 states have call predecessors, (343), 343 states have call successors, (343) Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-21 22:09:56,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:09:56,817 INFO L93 Difference]: Finished difference Result 3106 states and 4622 transitions. [2023-11-21 22:09:56,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 22:09:56,825 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2023-11-21 22:09:56,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:09:56,864 INFO L225 Difference]: With dead ends: 3106 [2023-11-21 22:09:56,864 INFO L226 Difference]: Without dead ends: 1700 [2023-11-21 22:09:56,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-21 22:09:56,889 INFO L413 NwaCegarLoop]: 1308 mSDtfsCounter, 1095 mSDsluCounter, 2376 mSDsCounter, 0 mSdLazyCounter, 2782 mSolverCounterSat, 983 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1237 SdHoareTripleChecker+Valid, 3684 SdHoareTripleChecker+Invalid, 3765 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 983 IncrementalHoareTripleChecker+Valid, 2782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-11-21 22:09:56,890 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1237 Valid, 3684 Invalid, 3765 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [983 Valid, 2782 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-11-21 22:09:56,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1700 states. [2023-11-21 22:09:57,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1700 to 1385. [2023-11-21 22:09:57,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1385 states, 895 states have (on average 1.4312849162011174) internal successors, (1281), 977 states have internal predecessors, (1281), 344 states have call successors, (344), 74 states have call predecessors, (344), 74 states have return successors, (344), 340 states have call predecessors, (344), 344 states have call successors, (344) [2023-11-21 22:09:57,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1385 states to 1385 states and 1969 transitions. [2023-11-21 22:09:57,163 INFO L78 Accepts]: Start accepts. Automaton has 1385 states and 1969 transitions. Word has length 32 [2023-11-21 22:09:57,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:09:57,164 INFO L495 AbstractCegarLoop]: Abstraction has 1385 states and 1969 transitions. [2023-11-21 22:09:57,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-21 22:09:57,164 INFO L276 IsEmpty]: Start isEmpty. Operand 1385 states and 1969 transitions. [2023-11-21 22:09:57,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-11-21 22:09:57,168 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:09:57,168 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2023-11-21 22:09:57,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:09:57,169 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [free_sglistErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, free_sglistErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, free_sglistErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-21 22:09:57,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:09:57,169 INFO L85 PathProgramCache]: Analyzing trace with hash 662701234, now seen corresponding path program 1 times [2023-11-21 22:09:57,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:09:57,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942791353] [2023-11-21 22:09:57,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:09:57,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:09:57,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:09:57,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:09:57,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:09:57,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 22:09:57,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:09:57,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:09:57,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:09:57,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-21 22:09:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:09:57,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-21 22:09:57,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:09:57,530 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-21 22:09:57,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:09:57,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942791353] [2023-11-21 22:09:57,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942791353] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:09:57,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:09:57,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-21 22:09:57,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23732682] [2023-11-21 22:09:57,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:09:57,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:09:57,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:09:57,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:09:57,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:09:57,534 INFO L87 Difference]: Start difference. First operand 1385 states and 1969 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-21 22:10:06,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:10:06,262 INFO L93 Difference]: Finished difference Result 3374 states and 4985 transitions. [2023-11-21 22:10:06,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:10:06,263 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 48 [2023-11-21 22:10:06,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:10:06,292 INFO L225 Difference]: With dead ends: 3374 [2023-11-21 22:10:06,292 INFO L226 Difference]: Without dead ends: 3368 [2023-11-21 22:10:06,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-21 22:10:06,296 INFO L413 NwaCegarLoop]: 1281 mSDtfsCounter, 3690 mSDsluCounter, 2330 mSDsCounter, 0 mSdLazyCounter, 2783 mSolverCounterSat, 2514 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4018 SdHoareTripleChecker+Valid, 3611 SdHoareTripleChecker+Invalid, 5297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2514 IncrementalHoareTripleChecker+Valid, 2783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2023-11-21 22:10:06,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4018 Valid, 3611 Invalid, 5297 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2514 Valid, 2783 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2023-11-21 22:10:06,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3368 states. [2023-11-21 22:10:06,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3368 to 2680. [2023-11-21 22:10:06,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2680 states, 1779 states have (on average 1.4294547498594716) internal successors, (2543), 1872 states have internal predecessors, (2543), 684 states have call successors, (684), 145 states have call predecessors, (684), 145 states have return successors, (684), 676 states have call predecessors, (684), 684 states have call successors, (684) [2023-11-21 22:10:06,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2680 states to 2680 states and 3911 transitions. [2023-11-21 22:10:06,596 INFO L78 Accepts]: Start accepts. Automaton has 2680 states and 3911 transitions. Word has length 48 [2023-11-21 22:10:06,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:10:06,597 INFO L495 AbstractCegarLoop]: Abstraction has 2680 states and 3911 transitions. [2023-11-21 22:10:06,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-21 22:10:06,598 INFO L276 IsEmpty]: Start isEmpty. Operand 2680 states and 3911 transitions. [2023-11-21 22:10:06,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-21 22:10:06,609 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:10:06,610 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:10:06,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 22:10:06,610 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [free_sglistErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, free_sglistErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, free_sglistErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-21 22:10:06,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:06,611 INFO L85 PathProgramCache]: Analyzing trace with hash 715910819, now seen corresponding path program 1 times [2023-11-21 22:10:06,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:06,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118695518] [2023-11-21 22:10:06,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:06,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:06,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:07,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:10:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:07,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 22:10:07,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:07,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:10:07,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:07,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-21 22:10:07,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:07,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-11-21 22:10:07,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:07,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-21 22:10:07,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:07,134 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-21 22:10:07,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:07,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118695518] [2023-11-21 22:10:07,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118695518] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:07,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:10:07,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 22:10:07,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434365872] [2023-11-21 22:10:07,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:07,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:10:07,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:07,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:10:07,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:10:07,138 INFO L87 Difference]: Start difference. First operand 2680 states and 3911 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-21 22:10:19,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:10:19,060 INFO L93 Difference]: Finished difference Result 7937 states and 11879 transitions. [2023-11-21 22:10:19,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-21 22:10:19,060 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 63 [2023-11-21 22:10:19,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:10:19,117 INFO L225 Difference]: With dead ends: 7937 [2023-11-21 22:10:19,117 INFO L226 Difference]: Without dead ends: 6568 [2023-11-21 22:10:19,128 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2023-11-21 22:10:19,129 INFO L413 NwaCegarLoop]: 2562 mSDtfsCounter, 2779 mSDsluCounter, 5779 mSDsCounter, 0 mSdLazyCounter, 6350 mSolverCounterSat, 1423 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3102 SdHoareTripleChecker+Valid, 8341 SdHoareTripleChecker+Invalid, 7773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1423 IncrementalHoareTripleChecker+Valid, 6350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.3s IncrementalHoareTripleChecker+Time [2023-11-21 22:10:19,130 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3102 Valid, 8341 Invalid, 7773 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1423 Valid, 6350 Invalid, 0 Unknown, 0 Unchecked, 11.3s Time] [2023-11-21 22:10:19,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6568 states. [2023-11-21 22:10:19,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6568 to 2684. [2023-11-21 22:10:19,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2684 states, 1783 states have (on average 1.4284913067863152) internal successors, (2547), 1876 states have internal predecessors, (2547), 684 states have call successors, (684), 145 states have call predecessors, (684), 145 states have return successors, (684), 676 states have call predecessors, (684), 684 states have call successors, (684) [2023-11-21 22:10:19,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2684 states to 2684 states and 3915 transitions. [2023-11-21 22:10:19,511 INFO L78 Accepts]: Start accepts. Automaton has 2684 states and 3915 transitions. Word has length 63 [2023-11-21 22:10:19,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:10:19,513 INFO L495 AbstractCegarLoop]: Abstraction has 2684 states and 3915 transitions. [2023-11-21 22:10:19,514 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-11-21 22:10:19,514 INFO L276 IsEmpty]: Start isEmpty. Operand 2684 states and 3915 transitions. [2023-11-21 22:10:19,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-21 22:10:19,516 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:10:19,516 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:10:19,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 22:10:19,518 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting usbtest_ioctlErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [free_sglistErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, free_sglistErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, free_sglistErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 83 more)] === [2023-11-21 22:10:19,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:10:19,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1037975821, now seen corresponding path program 1 times [2023-11-21 22:10:19,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:10:19,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268209017] [2023-11-21 22:10:19,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:10:19,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:10:19,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:19,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:10:19,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:19,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 22:10:19,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:19,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:10:19,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:19,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-21 22:10:19,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:19,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-21 22:10:19,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:19,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-21 22:10:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:19,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:10:19,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:19,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-21 22:10:19,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:19,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-21 22:10:19,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:10:19,911 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-21 22:10:19,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:10:19,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268209017] [2023-11-21 22:10:19,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268209017] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:10:19,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:10:19,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:10:19,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622744604] [2023-11-21 22:10:19,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:10:19,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:10:19,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:10:19,914 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:10:19,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:10:19,914 INFO L87 Difference]: Start difference. First operand 2684 states and 3915 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 3 states have internal predecessors, (48), 3 states have call successors, (10), 4 states have call predecessors, (10), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9)