./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 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_0121d1f5-adea-4ef3-a28a-c02df1f01ab8/bin/uautomizer-verify-uCwYo4JHxu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0121d1f5-adea-4ef3-a28a-c02df1f01ab8/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_0121d1f5-adea-4ef3-a28a-c02df1f01ab8/bin/uautomizer-verify-uCwYo4JHxu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0121d1f5-adea-4ef3-a28a-c02df1f01ab8/bin/uautomizer-verify-uCwYo4JHxu/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_0121d1f5-adea-4ef3-a28a-c02df1f01ab8/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0121d1f5-adea-4ef3-a28a-c02df1f01ab8/bin/uautomizer-verify-uCwYo4JHxu --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-9bd2c7f [2023-11-19 07:58:16,100 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 07:58:16,177 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0121d1f5-adea-4ef3-a28a-c02df1f01ab8/bin/uautomizer-verify-uCwYo4JHxu/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-19 07:58:16,182 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 07:58:16,183 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 07:58:16,210 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 07:58:16,210 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 07:58:16,211 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 07:58:16,212 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 07:58:16,212 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 07:58:16,213 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 07:58:16,214 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 07:58:16,214 INFO L153 SettingsManager]: * Use SBE=true [2023-11-19 07:58:16,215 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 07:58:16,215 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 07:58:16,216 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 07:58:16,216 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 07:58:16,217 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 07:58:16,217 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 07:58:16,217 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 07:58:16,218 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 07:58:16,223 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 07:58:16,224 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 07:58:16,224 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 07:58:16,225 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 07:58:16,226 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-19 07:58:16,226 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 07:58:16,226 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:58:16,227 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 07:58:16,227 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 07:58:16,229 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 07:58:16,229 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-19 07:58:16,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 07:58:16,229 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-19 07:58:16,230 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 07:58:16,230 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-19 07:58:16,230 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 07:58:16,230 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-19 07:58:16,231 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_0121d1f5-adea-4ef3-a28a-c02df1f01ab8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0121d1f5-adea-4ef3-a28a-c02df1f01ab8/bin/uautomizer-verify-uCwYo4JHxu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 045b49e5089f039c3b28eef4cf3a9c907cbda8f22472af0061e42bad883dd2f9 [2023-11-19 07:58:16,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 07:58:16,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 07:58:16,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 07:58:16,579 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 07:58:16,580 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 07:58:16,581 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0121d1f5-adea-4ef3-a28a-c02df1f01ab8/bin/uautomizer-verify-uCwYo4JHxu/../../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 [2023-11-19 07:58:19,748 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 07:58:20,386 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 07:58:20,387 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0121d1f5-adea-4ef3-a28a-c02df1f01ab8/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 [2023-11-19 07:58:20,437 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0121d1f5-adea-4ef3-a28a-c02df1f01ab8/bin/uautomizer-verify-uCwYo4JHxu/data/2a510a3c5/48a8b90f967240b9a3bc91f50fbad21e/FLAG05838150a [2023-11-19 07:58:20,455 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0121d1f5-adea-4ef3-a28a-c02df1f01ab8/bin/uautomizer-verify-uCwYo4JHxu/data/2a510a3c5/48a8b90f967240b9a3bc91f50fbad21e [2023-11-19 07:58:20,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 07:58:20,463 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 07:58:20,466 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 07:58:20,467 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 07:58:20,472 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 07:58:20,475 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:20" (1/1) ... [2023-11-19 07:58:20,476 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5eb1bf1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:20, skipping insertion in model container [2023-11-19 07:58:20,476 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:58:20" (1/1) ... [2023-11-19 07:58:20,629 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 07:58:21,119 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3528] [2023-11-19 07:58:21,120 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] [2023-11-19 07:58:22,359 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:58:22,384 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 07:58:22,460 WARN L1274 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3528] [2023-11-19 07:58:22,461 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] [2023-11-19 07:58:22,463 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] [2023-11-19 07:58:22,465 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] [2023-11-19 07:58:22,466 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] [2023-11-19 07:58:22,473 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] [2023-11-19 07:58:22,474 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] [2023-11-19 07:58:22,474 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] [2023-11-19 07:58:22,475 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] [2023-11-19 07:58:22,476 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] [2023-11-19 07:58:22,477 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] [2023-11-19 07:58:22,742 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 07:58:22,810 INFO L206 MainTranslator]: Completed translation [2023-11-19 07:58:22,811 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:22 WrapperNode [2023-11-19 07:58:22,811 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 07:58:22,813 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 07:58:22,813 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 07:58:22,813 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 07:58:22,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:22" (1/1) ... [2023-11-19 07:58:22,923 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:22" (1/1) ... [2023-11-19 07:58:23,105 INFO L138 Inliner]: procedures = 189, calls = 1842, calls flagged for inlining = 80, calls inlined = 71, statements flattened = 4990 [2023-11-19 07:58:23,106 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 07:58:23,107 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 07:58:23,107 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 07:58:23,107 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 07:58:23,117 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:22" (1/1) ... [2023-11-19 07:58:23,117 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:22" (1/1) ... [2023-11-19 07:58:23,235 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:22" (1/1) ... [2023-11-19 07:58:23,236 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:22" (1/1) ... [2023-11-19 07:58:23,354 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:22" (1/1) ... [2023-11-19 07:58:23,392 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:22" (1/1) ... [2023-11-19 07:58:23,457 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:22" (1/1) ... [2023-11-19 07:58:23,484 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:22" (1/1) ... [2023-11-19 07:58:23,511 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 07:58:23,512 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 07:58:23,513 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 07:58:23,513 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 07:58:23,514 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:22" (1/1) ... [2023-11-19 07:58:23,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 07:58:23,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0121d1f5-adea-4ef3-a28a-c02df1f01ab8/bin/uautomizer-verify-uCwYo4JHxu/z3 [2023-11-19 07:58:23,548 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0121d1f5-adea-4ef3-a28a-c02df1f01ab8/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 07:58:23,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0121d1f5-adea-4ef3-a28a-c02df1f01ab8/bin/uautomizer-verify-uCwYo4JHxu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 07:58:23,591 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2023-11-19 07:58:23,591 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2023-11-19 07:58:23,591 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-19 07:58:23,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-19 07:58:23,592 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-19 07:58:23,592 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-19 07:58:23,592 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-11-19 07:58:23,592 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-11-19 07:58:23,592 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-19 07:58:23,593 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-19 07:58:23,593 INFO L130 BoogieDeclarations]: Found specification of procedure free_sglist [2023-11-19 07:58:23,593 INFO L138 BoogieDeclarations]: Found implementation of procedure free_sglist [2023-11-19 07:58:23,593 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2023-11-19 07:58:23,594 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2023-11-19 07:58:23,594 INFO L130 BoogieDeclarations]: Found specification of procedure test_iso_queue [2023-11-19 07:58:23,594 INFO L138 BoogieDeclarations]: Found implementation of procedure test_iso_queue [2023-11-19 07:58:23,595 INFO L130 BoogieDeclarations]: Found specification of procedure simple_check_buf [2023-11-19 07:58:23,595 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_check_buf [2023-11-19 07:58:23,596 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 07:58:23,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 07:58:23,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 07:58:23,597 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2023-11-19 07:58:23,597 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2023-11-19 07:58:23,598 INFO L130 BoogieDeclarations]: Found specification of procedure perform_sglist [2023-11-19 07:58:23,598 INFO L138 BoogieDeclarations]: Found implementation of procedure perform_sglist [2023-11-19 07:58:23,599 INFO L130 BoogieDeclarations]: Found specification of procedure test_unaligned_bulk [2023-11-19 07:58:23,599 INFO L138 BoogieDeclarations]: Found implementation of procedure test_unaligned_bulk [2023-11-19 07:58:23,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-19 07:58:23,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-19 07:58:23,599 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_sglist [2023-11-19 07:58:23,599 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_sglist [2023-11-19 07:58:23,600 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-19 07:58:23,600 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-19 07:58:23,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 07:58:23,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 07:58:23,600 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-11-19 07:58:23,601 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-11-19 07:58:23,601 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-19 07:58:23,601 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-19 07:58:23,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-19 07:58:23,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-19 07:58:23,601 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 07:58:23,602 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 07:58:23,602 INFO L130 BoogieDeclarations]: Found specification of procedure set_altsetting [2023-11-19 07:58:23,602 INFO L138 BoogieDeclarations]: Found implementation of procedure set_altsetting [2023-11-19 07:58:23,602 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2023-11-19 07:58:23,602 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2023-11-19 07:58:23,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 07:58:23,603 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 07:58:23,603 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 07:58:23,603 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-11-19 07:58:23,603 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-11-19 07:58:23,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 07:58:23,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 07:58:23,604 INFO L130 BoogieDeclarations]: Found specification of procedure verify_not_halted [2023-11-19 07:58:23,604 INFO L138 BoogieDeclarations]: Found implementation of procedure verify_not_halted [2023-11-19 07:58:23,605 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-11-19 07:58:23,605 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-11-19 07:58:23,606 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-19 07:58:23,607 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-19 07:58:23,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 07:58:23,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 07:58:23,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 07:58:23,608 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 07:58:23,608 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2023-11-19 07:58:23,608 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2023-11-19 07:58:23,609 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 07:58:23,609 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 07:58:23,609 INFO L130 BoogieDeclarations]: Found specification of procedure test_halt [2023-11-19 07:58:23,609 INFO L138 BoogieDeclarations]: Found implementation of procedure test_halt [2023-11-19 07:58:23,610 INFO L130 BoogieDeclarations]: Found specification of procedure usbtest_alloc_urb [2023-11-19 07:58:23,610 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtest_alloc_urb [2023-11-19 07:58:23,610 INFO L130 BoogieDeclarations]: Found specification of procedure unlink1 [2023-11-19 07:58:23,610 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink1 [2023-11-19 07:58:23,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 07:58:23,611 INFO L130 BoogieDeclarations]: Found specification of procedure ctrl_out [2023-11-19 07:58:23,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ctrl_out [2023-11-19 07:58:23,611 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 07:58:23,611 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 07:58:23,611 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2023-11-19 07:58:23,611 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2023-11-19 07:58:23,612 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_status [2023-11-19 07:58:23,612 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_status [2023-11-19 07:58:23,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 07:58:23,613 INFO L130 BoogieDeclarations]: Found specification of procedure is_good_config [2023-11-19 07:58:23,613 INFO L138 BoogieDeclarations]: Found implementation of procedure is_good_config [2023-11-19 07:58:23,613 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-11-19 07:58:23,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-11-19 07:58:23,614 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2023-11-19 07:58:23,614 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2023-11-19 07:58:23,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 07:58:23,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 07:58:23,614 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2023-11-19 07:58:23,614 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2023-11-19 07:58:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-19 07:58:23,615 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-19 07:58:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2023-11-19 07:58:23,615 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2023-11-19 07:58:23,615 INFO L130 BoogieDeclarations]: Found specification of procedure testdev_to_usbdev [2023-11-19 07:58:23,615 INFO L138 BoogieDeclarations]: Found implementation of procedure testdev_to_usbdev [2023-11-19 07:58:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2023-11-19 07:58:23,616 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2023-11-19 07:58:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 07:58:23,616 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_simple [2023-11-19 07:58:23,617 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_simple [2023-11-19 07:58:23,617 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-11-19 07:58:23,617 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-11-19 07:58:23,617 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2023-11-19 07:58:23,618 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2023-11-19 07:58:23,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-19 07:58:23,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-19 07:58:23,619 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-19 07:58:23,619 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-19 07:58:23,619 INFO L130 BoogieDeclarations]: Found specification of procedure simple_io [2023-11-19 07:58:23,619 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_io [2023-11-19 07:58:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 07:58:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 07:58:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure simple_alloc_urb [2023-11-19 07:58:23,620 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_alloc_urb [2023-11-19 07:58:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure simple_free_urb [2023-11-19 07:58:23,620 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_free_urb [2023-11-19 07:58:23,621 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 07:58:23,621 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 07:58:23,621 INFO L130 BoogieDeclarations]: Found specification of procedure simple_fill_buf [2023-11-19 07:58:23,621 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_fill_buf [2023-11-19 07:58:23,621 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2023-11-19 07:58:23,622 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2023-11-19 07:58:23,622 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-19 07:58:23,623 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-19 07:58:23,623 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 07:58:23,623 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 07:58:23,623 INFO L130 BoogieDeclarations]: Found specification of procedure usbtest_ioctl [2023-11-19 07:58:23,624 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtest_ioctl [2023-11-19 07:58:23,624 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_offset [2023-11-19 07:58:23,624 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_offset [2023-11-19 07:58:23,624 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-19 07:58:23,624 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-19 07:58:23,624 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-19 07:58:23,625 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-19 07:58:23,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 07:58:23,625 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2023-11-19 07:58:23,626 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2023-11-19 07:58:23,626 INFO L130 BoogieDeclarations]: Found specification of procedure usbtest_disconnect [2023-11-19 07:58:23,630 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtest_disconnect [2023-11-19 07:58:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure check_guard_bytes [2023-11-19 07:58:23,631 INFO L138 BoogieDeclarations]: Found implementation of procedure check_guard_bytes [2023-11-19 07:58:23,631 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-11-19 07:58:23,632 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-11-19 07:58:23,632 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-11-19 07:58:23,634 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-11-19 07:58:23,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-19 07:58:23,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-19 07:58:23,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 07:58:23,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 07:58:23,640 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_descriptor [2023-11-19 07:58:23,640 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_descriptor [2023-11-19 07:58:24,331 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 07:58:24,336 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 07:58:25,232 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 07:58:28,796 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 07:58:28,827 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 07:58:28,828 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 07:58:28,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:28 BoogieIcfgContainer [2023-11-19 07:58:28,845 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 07:58:28,850 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 07:58:28,850 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 07:58:28,853 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 07:58:28,854 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:58:20" (1/3) ... [2023-11-19 07:58:28,854 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@140cf37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:28, skipping insertion in model container [2023-11-19 07:58:28,855 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:58:22" (2/3) ... [2023-11-19 07:58:28,856 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@140cf37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:58:28, skipping insertion in model container [2023-11-19 07:58:28,856 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:58:28" (3/3) ... [2023-11-19 07:58:28,859 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 [2023-11-19 07:58:28,881 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 07:58:28,881 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 86 error locations. [2023-11-19 07:58:29,002 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 07:58:29,012 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;@155fce04, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-19 07:58:29,012 INFO L358 AbstractCegarLoop]: Starting to check reachability of 86 error locations. [2023-11-19 07:58:29,025 INFO L276 IsEmpty]: Start isEmpty. Operand has 1725 states, 1221 states have (on average 1.4512694512694513) internal successors, (1772), 1321 states have internal predecessors, (1772), 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) [2023-11-19 07:58:29,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-19 07:58:29,042 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:29,043 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, 1, 1, 1, 1, 1] [2023-11-19 07:58:29,043 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)] === [2023-11-19 07:58:29,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:29,049 INFO L85 PathProgramCache]: Analyzing trace with hash -2141672652, now seen corresponding path program 1 times [2023-11-19 07:58:29,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:29,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068523607] [2023-11-19 07:58:29,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:29,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:29,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:29,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:58:29,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:29,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:58:29,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:29,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:58:29,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:29,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-19 07:58:29,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:29,904 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-19 07:58:29,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:29,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068523607] [2023-11-19 07:58:29,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068523607] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:29,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:29,908 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:58:29,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987620462] [2023-11-19 07:58:29,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:29,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:58:29,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:29,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:58:29,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:58:29,970 INFO L87 Difference]: Start difference. First operand has 1725 states, 1221 states have (on average 1.4512694512694513) internal successors, (1772), 1321 states have internal predecessors, (1772), 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 5.2) internal successors, (26), 3 states have internal predecessors, (26), 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) [2023-11-19 07:58:36,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:36,678 INFO L93 Difference]: Finished difference Result 3846 states and 5697 transitions. [2023-11-19 07:58:36,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-19 07:58:36,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 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 37 [2023-11-19 07:58:36,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:36,763 INFO L225 Difference]: With dead ends: 3846 [2023-11-19 07:58:36,763 INFO L226 Difference]: Without dead ends: 2086 [2023-11-19 07:58:36,783 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 [2023-11-19 07:58:36,789 INFO L413 NwaCegarLoop]: 1768 mSDtfsCounter, 1458 mSDsluCounter, 3492 mSDsCounter, 0 mSdLazyCounter, 2809 mSolverCounterSat, 980 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1600 SdHoareTripleChecker+Valid, 5260 SdHoareTripleChecker+Invalid, 3789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 980 IncrementalHoareTripleChecker+Valid, 2809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:36,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1600 Valid, 5260 Invalid, 3789 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [980 Valid, 2809 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2023-11-19 07:58:36,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2086 states. [2023-11-19 07:58:37,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2086 to 1720. [2023-11-19 07:58:37,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1720 states, 1230 states have (on average 1.4203252032520326) internal successors, (1747), 1312 states have internal predecessors, (1747), 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) [2023-11-19 07:58:37,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 2435 transitions. [2023-11-19 07:58:37,056 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 2435 transitions. Word has length 37 [2023-11-19 07:58:37,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:37,057 INFO L495 AbstractCegarLoop]: Abstraction has 1720 states and 2435 transitions. [2023-11-19 07:58:37,057 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 3 states have internal predecessors, (26), 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) [2023-11-19 07:58:37,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 2435 transitions. [2023-11-19 07:58:37,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-19 07:58:37,066 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:37,066 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:37,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 07:58:37,067 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)] === [2023-11-19 07:58:37,068 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:37,068 INFO L85 PathProgramCache]: Analyzing trace with hash -2051454538, now seen corresponding path program 1 times [2023-11-19 07:58:37,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:37,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796189450] [2023-11-19 07:58:37,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:37,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:37,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:37,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:58:37,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:37,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:58:37,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:37,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:58:37,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:37,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-19 07:58:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:37,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-19 07:58:37,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:37,525 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-19 07:58:37,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:37,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796189450] [2023-11-19 07:58:37,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796189450] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:37,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:37,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-19 07:58:37,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064508932] [2023-11-19 07:58:37,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:37,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:58:37,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:37,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:58:37,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:58:37,540 INFO L87 Difference]: Start difference. First operand 1720 states and 2435 transitions. Second operand has 5 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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) [2023-11-19 07:58:46,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:46,576 INFO L93 Difference]: Finished difference Result 4133 states and 6030 transitions. [2023-11-19 07:58:46,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-19 07:58:46,577 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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 58 [2023-11-19 07:58:46,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:46,616 INFO L225 Difference]: With dead ends: 4133 [2023-11-19 07:58:46,616 INFO L226 Difference]: Without dead ends: 4127 [2023-11-19 07:58:46,619 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 [2023-11-19 07:58:46,620 INFO L413 NwaCegarLoop]: 1723 mSDtfsCounter, 4923 mSDsluCounter, 3461 mSDsCounter, 0 mSdLazyCounter, 2809 mSolverCounterSat, 2506 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5252 SdHoareTripleChecker+Valid, 5184 SdHoareTripleChecker+Invalid, 5315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2506 IncrementalHoareTripleChecker+Valid, 2809 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:46,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5252 Valid, 5184 Invalid, 5315 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2506 Valid, 2809 Invalid, 0 Unknown, 0 Unchecked, 8.4s Time] [2023-11-19 07:58:46,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4127 states. [2023-11-19 07:58:46,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4127 to 3344. [2023-11-19 07:58:46,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3344 states, 2443 states have (on average 1.4199754400327467) internal successors, (3469), 2536 states have internal predecessors, (3469), 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) [2023-11-19 07:58:46,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3344 states to 3344 states and 4837 transitions. [2023-11-19 07:58:46,842 INFO L78 Accepts]: Start accepts. Automaton has 3344 states and 4837 transitions. Word has length 58 [2023-11-19 07:58:46,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:46,844 INFO L495 AbstractCegarLoop]: Abstraction has 3344 states and 4837 transitions. [2023-11-19 07:58:46,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 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) [2023-11-19 07:58:46,845 INFO L276 IsEmpty]: Start isEmpty. Operand 3344 states and 4837 transitions. [2023-11-19 07:58:46,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-19 07:58:46,852 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:46,852 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:46,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 07:58:46,853 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)] === [2023-11-19 07:58:46,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:46,853 INFO L85 PathProgramCache]: Analyzing trace with hash -821991258, now seen corresponding path program 1 times [2023-11-19 07:58:46,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:46,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039159972] [2023-11-19 07:58:46,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:46,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:58:46,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:47,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:58:47,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:47,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:58:47,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:47,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:58:47,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:47,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-19 07:58:47,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:47,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-19 07:58:47,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:47,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-19 07:58:47,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:58:47,275 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-19 07:58:47,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:58:47,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039159972] [2023-11-19 07:58:47,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039159972] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:58:47,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:58:47,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-19 07:58:47,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49648839] [2023-11-19 07:58:47,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:58:47,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-19 07:58:47,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:58:47,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-19 07:58:47,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-19 07:58:47,278 INFO L87 Difference]: Start difference. First operand 3344 states and 4837 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 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) [2023-11-19 07:58:59,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 07:58:59,479 INFO L93 Difference]: Finished difference Result 9777 states and 14422 transitions. [2023-11-19 07:58:59,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-19 07:58:59,488 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 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 75 [2023-11-19 07:58:59,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 07:58:59,576 INFO L225 Difference]: With dead ends: 9777 [2023-11-19 07:58:59,576 INFO L226 Difference]: Without dead ends: 8079 [2023-11-19 07:58:59,591 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 [2023-11-19 07:58:59,597 INFO L413 NwaCegarLoop]: 3420 mSDtfsCounter, 3694 mSDsluCounter, 8367 mSDsCounter, 0 mSdLazyCounter, 6412 mSolverCounterSat, 1437 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4021 SdHoareTripleChecker+Valid, 11787 SdHoareTripleChecker+Invalid, 7849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1437 IncrementalHoareTripleChecker+Valid, 6412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2023-11-19 07:58:59,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4021 Valid, 11787 Invalid, 7849 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1437 Valid, 6412 Invalid, 0 Unknown, 0 Unchecked, 11.4s Time] [2023-11-19 07:58:59,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8079 states. [2023-11-19 07:58:59,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8079 to 3348. [2023-11-19 07:58:59,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3348 states, 2447 states have (on average 1.4192889252145484) internal successors, (3473), 2540 states have internal predecessors, (3473), 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) [2023-11-19 07:58:59,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3348 states to 3348 states and 4841 transitions. [2023-11-19 07:58:59,971 INFO L78 Accepts]: Start accepts. Automaton has 3348 states and 4841 transitions. Word has length 75 [2023-11-19 07:58:59,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 07:58:59,974 INFO L495 AbstractCegarLoop]: Abstraction has 3348 states and 4841 transitions. [2023-11-19 07:58:59,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 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) [2023-11-19 07:58:59,974 INFO L276 IsEmpty]: Start isEmpty. Operand 3348 states and 4841 transitions. [2023-11-19 07:58:59,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-19 07:58:59,978 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 07:58:59,978 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 07:58:59,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 07:58:59,980 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)] === [2023-11-19 07:58:59,981 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 07:58:59,981 INFO L85 PathProgramCache]: Analyzing trace with hash -1399207212, now seen corresponding path program 1 times [2023-11-19 07:58:59,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-19 07:58:59,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875276539] [2023-11-19 07:58:59,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 07:58:59,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 07:59:00,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:00,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-19 07:59:00,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:00,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-19 07:59:00,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:00,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-19 07:59:00,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:00,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-19 07:59:00,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:00,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-19 07:59:00,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:00,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-19 07:59:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:00,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-19 07:59:00,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:00,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-19 07:59:00,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:00,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-19 07:59:00,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 07:59:00,406 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-19 07:59:00,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-19 07:59:00,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875276539] [2023-11-19 07:59:00,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875276539] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 07:59:00,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 07:59:00,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-19 07:59:00,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983764098] [2023-11-19 07:59:00,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 07:59:00,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-19 07:59:00,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-19 07:59:00,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-19 07:59:00,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-19 07:59:00,409 INFO L87 Difference]: Start difference. First operand 3348 states and 4841 transitions. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 3 states have internal predecessors, (62), 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)