./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 cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22e16e6-8406-41ac-be9a-3aacbeca98a2/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22e16e6-8406-41ac-be9a-3aacbeca98a2/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22e16e6-8406-41ac-be9a-3aacbeca98a2/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22e16e6-8406-41ac-be9a-3aacbeca98a2/bin/uautomizer-verify-uTZkv6EMXl/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_d22e16e6-8406-41ac-be9a-3aacbeca98a2/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22e16e6-8406-41ac-be9a-3aacbeca98a2/bin/uautomizer-verify-uTZkv6EMXl --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-cf1a783 [2023-11-12 02:23:36,003 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:23:36,123 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22e16e6-8406-41ac-be9a-3aacbeca98a2/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-12 02:23:36,130 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:23:36,131 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:23:36,170 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:23:36,171 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:23:36,172 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:23:36,173 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:23:36,178 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:23:36,179 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:23:36,180 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:23:36,180 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:23:36,182 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:23:36,183 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:23:36,183 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:23:36,184 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:23:36,184 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:23:36,185 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:23:36,185 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:23:36,186 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:23:36,186 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:23:36,187 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:23:36,187 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:23:36,188 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:23:36,189 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:23:36,189 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:23:36,190 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:23:36,190 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:23:36,191 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:23:36,192 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:23:36,193 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:23:36,193 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:23:36,193 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:23:36,194 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:23:36,194 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:23:36,194 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:23:36,195 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:23:36,195 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_d22e16e6-8406-41ac-be9a-3aacbeca98a2/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22e16e6-8406-41ac-be9a-3aacbeca98a2/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 045b49e5089f039c3b28eef4cf3a9c907cbda8f22472af0061e42bad883dd2f9 [2023-11-12 02:23:36,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:23:36,538 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:23:36,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:23:36,543 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:23:36,544 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:23:36,545 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22e16e6-8406-41ac-be9a-3aacbeca98a2/bin/uautomizer-verify-uTZkv6EMXl/../../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 [2023-11-12 02:23:39,865 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:23:40,518 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:23:40,519 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22e16e6-8406-41ac-be9a-3aacbeca98a2/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 [2023-11-12 02:23:40,562 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22e16e6-8406-41ac-be9a-3aacbeca98a2/bin/uautomizer-verify-uTZkv6EMXl/data/04b814162/9366e3d748314159a7ad0750a6db5716/FLAG61829d1d9 [2023-11-12 02:23:40,581 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22e16e6-8406-41ac-be9a-3aacbeca98a2/bin/uautomizer-verify-uTZkv6EMXl/data/04b814162/9366e3d748314159a7ad0750a6db5716 [2023-11-12 02:23:40,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:23:40,590 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:23:40,594 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:23:40,594 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:23:40,600 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:23:40,602 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:23:40" (1/1) ... [2023-11-12 02:23:40,603 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@102cca14 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:40, skipping insertion in model container [2023-11-12 02:23:40,603 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:23:40" (1/1) ... [2023-11-12 02:23:40,781 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:23:41,363 WARN L1270 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3528] [2023-11-12 02:23:41,364 WARN L1270 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3529-3530] [2023-11-12 02:23:42,364 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:23:42,391 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:23:42,525 WARN L1270 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3528] [2023-11-12 02:23:42,526 WARN L1270 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3529-3530] [2023-11-12 02:23:42,528 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] [2023-11-12 02:23:42,530 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] [2023-11-12 02:23:42,531 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] [2023-11-12 02:23:42,548 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] [2023-11-12 02:23:42,549 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] [2023-11-12 02:23:42,550 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] [2023-11-12 02:23:42,552 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] [2023-11-12 02:23:42,552 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] [2023-11-12 02:23:42,554 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] [2023-11-12 02:23:42,824 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:23:42,895 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:23:42,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:42 WrapperNode [2023-11-12 02:23:42,896 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:23:42,897 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:23:42,898 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:23:42,898 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:23:42,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:42" (1/1) ... [2023-11-12 02:23:43,013 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:42" (1/1) ... [2023-11-12 02:23:43,228 INFO L138 Inliner]: procedures = 189, calls = 1842, calls flagged for inlining = 80, calls inlined = 71, statements flattened = 4990 [2023-11-12 02:23:43,229 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:23:43,229 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:23:43,230 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:23:43,230 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:23:43,240 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:42" (1/1) ... [2023-11-12 02:23:43,241 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:42" (1/1) ... [2023-11-12 02:23:43,269 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:42" (1/1) ... [2023-11-12 02:23:43,270 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:42" (1/1) ... [2023-11-12 02:23:43,417 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:42" (1/1) ... [2023-11-12 02:23:43,451 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:42" (1/1) ... [2023-11-12 02:23:43,481 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:42" (1/1) ... [2023-11-12 02:23:43,506 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:42" (1/1) ... [2023-11-12 02:23:43,544 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:23:43,545 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:23:43,546 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:23:43,546 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:23:43,547 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:42" (1/1) ... [2023-11-12 02:23:43,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:23:43,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22e16e6-8406-41ac-be9a-3aacbeca98a2/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:23:43,589 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22e16e6-8406-41ac-be9a-3aacbeca98a2/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:23:43,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d22e16e6-8406-41ac-be9a-3aacbeca98a2/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:23:43,636 INFO L130 BoogieDeclarations]: Found specification of procedure sg_page [2023-11-12 02:23:43,636 INFO L138 BoogieDeclarations]: Found implementation of procedure sg_page [2023-11-12 02:23:43,636 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-12 02:23:43,636 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-12 02:23:43,636 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-12 02:23:43,636 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-12 02:23:43,636 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-11-12 02:23:43,637 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-11-12 02:23:43,637 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-12 02:23:43,637 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-12 02:23:43,637 INFO L130 BoogieDeclarations]: Found specification of procedure free_sglist [2023-11-12 02:23:43,637 INFO L138 BoogieDeclarations]: Found implementation of procedure free_sglist [2023-11-12 02:23:43,637 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2023-11-12 02:23:43,638 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2023-11-12 02:23:43,638 INFO L130 BoogieDeclarations]: Found specification of procedure test_iso_queue [2023-11-12 02:23:43,638 INFO L138 BoogieDeclarations]: Found implementation of procedure test_iso_queue [2023-11-12 02:23:43,638 INFO L130 BoogieDeclarations]: Found specification of procedure simple_check_buf [2023-11-12 02:23:43,638 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_check_buf [2023-11-12 02:23:43,638 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 02:23:43,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 02:23:43,639 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:23:43,640 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2023-11-12 02:23:43,640 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2023-11-12 02:23:43,640 INFO L130 BoogieDeclarations]: Found specification of procedure perform_sglist [2023-11-12 02:23:43,641 INFO L138 BoogieDeclarations]: Found implementation of procedure perform_sglist [2023-11-12 02:23:43,641 INFO L130 BoogieDeclarations]: Found specification of procedure test_unaligned_bulk [2023-11-12 02:23:43,641 INFO L138 BoogieDeclarations]: Found implementation of procedure test_unaligned_bulk [2023-11-12 02:23:43,641 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-12 02:23:43,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-12 02:23:43,642 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_sglist [2023-11-12 02:23:43,642 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_sglist [2023-11-12 02:23:43,642 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-12 02:23:43,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-12 02:23:43,642 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 02:23:43,642 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 02:23:43,642 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-11-12 02:23:43,642 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-11-12 02:23:43,642 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-12 02:23:43,643 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-12 02:23:43,643 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-12 02:23:43,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-12 02:23:43,643 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-12 02:23:43,643 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-12 02:23:43,643 INFO L130 BoogieDeclarations]: Found specification of procedure set_altsetting [2023-11-12 02:23:43,643 INFO L138 BoogieDeclarations]: Found implementation of procedure set_altsetting [2023-11-12 02:23:43,643 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2023-11-12 02:23:43,644 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2023-11-12 02:23:43,644 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:23:43,644 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-12 02:23:43,644 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-12 02:23:43,644 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-11-12 02:23:43,644 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-11-12 02:23:43,644 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-12 02:23:43,644 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-12 02:23:43,645 INFO L130 BoogieDeclarations]: Found specification of procedure verify_not_halted [2023-11-12 02:23:43,645 INFO L138 BoogieDeclarations]: Found implementation of procedure verify_not_halted [2023-11-12 02:23:43,645 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-11-12 02:23:43,646 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-11-12 02:23:43,646 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-12 02:23:43,647 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-12 02:23:43,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 02:23:43,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 02:23:43,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-12 02:23:43,648 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-12 02:23:43,648 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2023-11-12 02:23:43,649 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2023-11-12 02:23:43,649 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:23:43,649 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:23:43,649 INFO L130 BoogieDeclarations]: Found specification of procedure test_halt [2023-11-12 02:23:43,649 INFO L138 BoogieDeclarations]: Found implementation of procedure test_halt [2023-11-12 02:23:43,650 INFO L130 BoogieDeclarations]: Found specification of procedure usbtest_alloc_urb [2023-11-12 02:23:43,650 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtest_alloc_urb [2023-11-12 02:23:43,650 INFO L130 BoogieDeclarations]: Found specification of procedure unlink1 [2023-11-12 02:23:43,650 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink1 [2023-11-12 02:23:43,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:23:43,650 INFO L130 BoogieDeclarations]: Found specification of procedure ctrl_out [2023-11-12 02:23:43,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ctrl_out [2023-11-12 02:23:43,650 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-12 02:23:43,650 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-12 02:23:43,651 INFO L130 BoogieDeclarations]: Found specification of procedure complete [2023-11-12 02:23:43,651 INFO L138 BoogieDeclarations]: Found implementation of procedure complete [2023-11-12 02:23:43,651 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_status [2023-11-12 02:23:43,652 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_status [2023-11-12 02:23:43,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:23:43,652 INFO L130 BoogieDeclarations]: Found specification of procedure is_good_config [2023-11-12 02:23:43,652 INFO L138 BoogieDeclarations]: Found implementation of procedure is_good_config [2023-11-12 02:23:43,652 INFO L130 BoogieDeclarations]: Found specification of procedure __kmalloc [2023-11-12 02:23:43,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __kmalloc [2023-11-12 02:23:43,652 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion [2023-11-12 02:23:43,652 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion [2023-11-12 02:23:43,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:23:43,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:23:43,653 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2023-11-12 02:23:43,653 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2023-11-12 02:23:43,653 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-12 02:23:43,653 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-12 02:23:43,653 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2023-11-12 02:23:43,653 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2023-11-12 02:23:43,653 INFO L130 BoogieDeclarations]: Found specification of procedure testdev_to_usbdev [2023-11-12 02:23:43,654 INFO L138 BoogieDeclarations]: Found implementation of procedure testdev_to_usbdev [2023-11-12 02:23:43,654 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2023-11-12 02:23:43,654 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2023-11-12 02:23:43,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:23:43,654 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_simple [2023-11-12 02:23:43,654 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_simple [2023-11-12 02:23:43,655 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-11-12 02:23:43,655 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-11-12 02:23:43,655 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2023-11-12 02:23:43,655 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2023-11-12 02:23:43,655 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-12 02:23:43,656 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-12 02:23:43,656 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-12 02:23:43,656 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-12 02:23:43,656 INFO L130 BoogieDeclarations]: Found specification of procedure simple_io [2023-11-12 02:23:43,657 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_io [2023-11-12 02:23:43,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:23:43,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 02:23:43,657 INFO L130 BoogieDeclarations]: Found specification of procedure simple_alloc_urb [2023-11-12 02:23:43,657 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_alloc_urb [2023-11-12 02:23:43,657 INFO L130 BoogieDeclarations]: Found specification of procedure simple_free_urb [2023-11-12 02:23:43,658 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_free_urb [2023-11-12 02:23:43,658 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-12 02:23:43,658 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-12 02:23:43,658 INFO L130 BoogieDeclarations]: Found specification of procedure simple_fill_buf [2023-11-12 02:23:43,658 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_fill_buf [2023-11-12 02:23:43,658 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2023-11-12 02:23:43,659 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2023-11-12 02:23:43,659 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-12 02:23:43,659 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-12 02:23:43,660 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-12 02:23:43,660 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-12 02:23:43,660 INFO L130 BoogieDeclarations]: Found specification of procedure usbtest_ioctl [2023-11-12 02:23:43,660 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtest_ioctl [2023-11-12 02:23:43,660 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_offset [2023-11-12 02:23:43,661 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_offset [2023-11-12 02:23:43,661 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-12 02:23:43,661 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-12 02:23:43,661 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-12 02:23:43,661 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-12 02:23:43,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:23:43,661 INFO L130 BoogieDeclarations]: Found specification of procedure usb_clear_halt [2023-11-12 02:23:43,662 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_clear_halt [2023-11-12 02:23:43,663 INFO L130 BoogieDeclarations]: Found specification of procedure usbtest_disconnect [2023-11-12 02:23:43,666 INFO L138 BoogieDeclarations]: Found implementation of procedure usbtest_disconnect [2023-11-12 02:23:43,666 INFO L130 BoogieDeclarations]: Found specification of procedure check_guard_bytes [2023-11-12 02:23:43,667 INFO L138 BoogieDeclarations]: Found implementation of procedure check_guard_bytes [2023-11-12 02:23:43,667 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-11-12 02:23:43,668 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-11-12 02:23:43,668 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-11-12 02:23:43,669 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-11-12 02:23:43,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-12 02:23:43,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-12 02:23:43,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:23:43,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:23:43,675 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_descriptor [2023-11-12 02:23:43,675 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_descriptor [2023-11-12 02:23:44,466 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:23:44,471 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:23:45,235 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 02:23:48,757 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:23:48,783 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:23:48,784 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-12 02:23:48,789 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:23:48 BoogieIcfgContainer [2023-11-12 02:23:48,789 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:23:48,793 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:23:48,794 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:23:48,797 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:23:48,797 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:23:40" (1/3) ... [2023-11-12 02:23:48,798 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b02ce6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:23:48, skipping insertion in model container [2023-11-12 02:23:48,798 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:23:42" (2/3) ... [2023-11-12 02:23:48,800 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b02ce6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:23:48, skipping insertion in model container [2023-11-12 02:23:48,800 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:23:48" (3/3) ... [2023-11-12 02:23:48,801 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 [2023-11-12 02:23:48,822 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:23:48,823 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 86 error locations. [2023-11-12 02:23:48,940 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:23:48,947 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;@4abec66d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:23:48,947 INFO L358 AbstractCegarLoop]: Starting to check reachability of 86 error locations. [2023-11-12 02:23:48,960 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) [2023-11-12 02:23:48,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-12 02:23:48,972 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:23:48,973 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] [2023-11-12 02:23:48,974 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)] === [2023-11-12 02:23:48,979 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:23:48,980 INFO L85 PathProgramCache]: Analyzing trace with hash -2141672652, now seen corresponding path program 1 times [2023-11-12 02:23:48,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:23:48,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917247490] [2023-11-12 02:23:48,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:48,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:23:49,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:49,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:23:49,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:49,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:23:49,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:49,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-12 02:23:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:49,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-11-12 02:23:49,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:49,792 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-12 02:23:49,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:23:49,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917247490] [2023-11-12 02:23:49,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917247490] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:23:49,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:23:49,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:23:49,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099274567] [2023-11-12 02:23:49,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:23:49,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:23:49,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:23:49,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:23:49,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:23:49,840 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) [2023-11-12 02:23:56,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:23:56,482 INFO L93 Difference]: Finished difference Result 3846 states and 5697 transitions. [2023-11-12 02:23:56,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:23:56,484 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 [2023-11-12 02:23:56,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:23:56,521 INFO L225 Difference]: With dead ends: 3846 [2023-11-12 02:23:56,521 INFO L226 Difference]: Without dead ends: 2086 [2023-11-12 02:23:56,543 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 [2023-11-12 02:23:56,547 INFO L413 NwaCegarLoop]: 1769 mSDtfsCounter, 1458 mSDsluCounter, 3495 mSDsCounter, 0 mSdLazyCounter, 2807 mSolverCounterSat, 980 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1600 SdHoareTripleChecker+Valid, 5264 SdHoareTripleChecker+Invalid, 3787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 980 IncrementalHoareTripleChecker+Valid, 2807 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:23:56,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1600 Valid, 5264 Invalid, 3787 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [980 Valid, 2807 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2023-11-12 02:23:56,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2086 states. [2023-11-12 02:23:56,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2086 to 1720. [2023-11-12 02:23:56,741 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) [2023-11-12 02:23:56,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 2435 transitions. [2023-11-12 02:23:56,763 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 2435 transitions. Word has length 37 [2023-11-12 02:23:56,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:23:56,764 INFO L495 AbstractCegarLoop]: Abstraction has 1720 states and 2435 transitions. [2023-11-12 02:23:56,764 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) [2023-11-12 02:23:56,764 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 2435 transitions. [2023-11-12 02:23:56,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-12 02:23:56,773 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:23:56,773 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] [2023-11-12 02:23:56,773 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:23:56,774 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)] === [2023-11-12 02:23:56,775 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:23:56,775 INFO L85 PathProgramCache]: Analyzing trace with hash -2051454538, now seen corresponding path program 1 times [2023-11-12 02:23:56,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:23:56,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516674750] [2023-11-12 02:23:56,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:23:56,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:23:56,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:57,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:23:57,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:57,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:23:57,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:57,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-12 02:23:57,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:57,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-12 02:23:57,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:57,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:23:57,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:23:57,204 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-12 02:23:57,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:23:57,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516674750] [2023-11-12 02:23:57,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516674750] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:23:57,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:23:57,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:23:57,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120890006] [2023-11-12 02:23:57,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:23:57,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:23:57,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:23:57,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:23:57,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:23:57,209 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) [2023-11-12 02:24:05,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:24:05,812 INFO L93 Difference]: Finished difference Result 4133 states and 6030 transitions. [2023-11-12 02:24:05,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:24:05,813 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 [2023-11-12 02:24:05,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:24:05,849 INFO L225 Difference]: With dead ends: 4133 [2023-11-12 02:24:05,849 INFO L226 Difference]: Without dead ends: 4127 [2023-11-12 02:24:05,852 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 [2023-11-12 02:24:05,854 INFO L413 NwaCegarLoop]: 1723 mSDtfsCounter, 4933 mSDsluCounter, 3454 mSDsCounter, 0 mSdLazyCounter, 2806 mSolverCounterSat, 2502 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5266 SdHoareTripleChecker+Valid, 5177 SdHoareTripleChecker+Invalid, 5308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2502 IncrementalHoareTripleChecker+Valid, 2806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:24:05,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5266 Valid, 5177 Invalid, 5308 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2502 Valid, 2806 Invalid, 0 Unknown, 0 Unchecked, 8.0s Time] [2023-11-12 02:24:05,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4127 states. [2023-11-12 02:24:06,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4127 to 3344. [2023-11-12 02:24:06,112 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) [2023-11-12 02:24:06,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3344 states to 3344 states and 4837 transitions. [2023-11-12 02:24:06,140 INFO L78 Accepts]: Start accepts. Automaton has 3344 states and 4837 transitions. Word has length 58 [2023-11-12 02:24:06,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:24:06,142 INFO L495 AbstractCegarLoop]: Abstraction has 3344 states and 4837 transitions. [2023-11-12 02:24:06,142 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) [2023-11-12 02:24:06,142 INFO L276 IsEmpty]: Start isEmpty. Operand 3344 states and 4837 transitions. [2023-11-12 02:24:06,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-11-12 02:24:06,149 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:24:06,149 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] [2023-11-12 02:24:06,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:24:06,150 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)] === [2023-11-12 02:24:06,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:06,151 INFO L85 PathProgramCache]: Analyzing trace with hash -821991258, now seen corresponding path program 1 times [2023-11-12 02:24:06,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:06,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687014796] [2023-11-12 02:24:06,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:06,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:06,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:06,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:24:06,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:06,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:24:06,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:06,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-12 02:24:06,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:06,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-12 02:24:06,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:06,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-12 02:24:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:06,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-12 02:24:06,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:06,592 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-11-12 02:24:06,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:06,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687014796] [2023-11-12 02:24:06,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687014796] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:06,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:06,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:24:06,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716992650] [2023-11-12 02:24:06,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:06,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:24:06,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:06,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:24:06,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:24:06,596 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) [2023-11-12 02:24:18,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:24:18,148 INFO L93 Difference]: Finished difference Result 9777 states and 14422 transitions. [2023-11-12 02:24:18,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-12 02:24:18,149 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 [2023-11-12 02:24:18,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:24:18,218 INFO L225 Difference]: With dead ends: 9777 [2023-11-12 02:24:18,219 INFO L226 Difference]: Without dead ends: 8079 [2023-11-12 02:24:18,231 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 [2023-11-12 02:24:18,237 INFO L413 NwaCegarLoop]: 3418 mSDtfsCounter, 3696 mSDsluCounter, 8368 mSDsCounter, 0 mSdLazyCounter, 6418 mSolverCounterSat, 1433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4020 SdHoareTripleChecker+Valid, 11786 SdHoareTripleChecker+Invalid, 7851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1433 IncrementalHoareTripleChecker+Valid, 6418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2023-11-12 02:24:18,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4020 Valid, 11786 Invalid, 7851 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1433 Valid, 6418 Invalid, 0 Unknown, 0 Unchecked, 10.9s Time] [2023-11-12 02:24:18,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8079 states. [2023-11-12 02:24:18,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8079 to 3348. [2023-11-12 02:24:18,621 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) [2023-11-12 02:24:18,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3348 states to 3348 states and 4841 transitions. [2023-11-12 02:24:18,643 INFO L78 Accepts]: Start accepts. Automaton has 3348 states and 4841 transitions. Word has length 75 [2023-11-12 02:24:18,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:24:18,647 INFO L495 AbstractCegarLoop]: Abstraction has 3348 states and 4841 transitions. [2023-11-12 02:24:18,647 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) [2023-11-12 02:24:18,647 INFO L276 IsEmpty]: Start isEmpty. Operand 3348 states and 4841 transitions. [2023-11-12 02:24:18,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-12 02:24:18,651 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:24:18,652 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] [2023-11-12 02:24:18,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:24:18,655 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)] === [2023-11-12 02:24:18,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:24:18,657 INFO L85 PathProgramCache]: Analyzing trace with hash -1399207212, now seen corresponding path program 1 times [2023-11-12 02:24:18,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:24:18,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477843511] [2023-11-12 02:24:18,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:24:18,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:24:18,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:19,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-12 02:24:19,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:19,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-12 02:24:19,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:19,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-12 02:24:19,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:19,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2023-11-12 02:24:19,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:19,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2023-11-12 02:24:19,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:19,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-12 02:24:19,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:19,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-12 02:24:19,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:19,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-12 02:24:19,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:19,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-11-12 02:24:19,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:24:19,134 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-12 02:24:19,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:24:19,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477843511] [2023-11-12 02:24:19,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477843511] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:24:19,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:24:19,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:24:19,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752079185] [2023-11-12 02:24:19,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:24:19,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:24:19,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:24:19,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:24:19,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:24:19,139 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)