./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f641d9-b625-4a3f-85b7-448e5b65995c/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f641d9-b625-4a3f-85b7-448e5b65995c/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f641d9-b625-4a3f-85b7-448e5b65995c/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f641d9-b625-4a3f-85b7-448e5b65995c/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f641d9-b625-4a3f-85b7-448e5b65995c/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f641d9-b625-4a3f-85b7-448e5b65995c/bin/uautomizer-verify-bycVGegfSx --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 01d4ebb86f2bde0df0d47bbd5d9b632b620f2501e68770553e85fb2bb5a7d15a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 20:59:41,998 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 20:59:42,120 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f641d9-b625-4a3f-85b7-448e5b65995c/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 20:59:42,126 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 20:59:42,127 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 20:59:42,167 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 20:59:42,168 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 20:59:42,169 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 20:59:42,170 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 20:59:42,175 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 20:59:42,175 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 20:59:42,176 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 20:59:42,177 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 20:59:42,179 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 20:59:42,179 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 20:59:42,180 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 20:59:42,180 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 20:59:42,181 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 20:59:42,182 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 20:59:42,182 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 20:59:42,183 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 20:59:42,183 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 20:59:42,184 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 20:59:42,184 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 20:59:42,185 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 20:59:42,186 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 20:59:42,187 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 20:59:42,187 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 20:59:42,187 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 20:59:42,188 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 20:59:42,189 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 20:59:42,190 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 20:59:42,190 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 20:59:42,190 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 20:59:42,191 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 20:59:42,191 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 20:59:42,191 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 20:59:42,192 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 20:59:42,192 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 20:59:42,192 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_a9f641d9-b625-4a3f-85b7-448e5b65995c/bin/uautomizer-verify-bycVGegfSx/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f641d9-b625-4a3f-85b7-448e5b65995c/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 01d4ebb86f2bde0df0d47bbd5d9b632b620f2501e68770553e85fb2bb5a7d15a [2023-11-21 20:59:42,522 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 20:59:42,576 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 20:59:42,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 20:59:42,583 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 20:59:42,584 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 20:59:42,585 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f641d9-b625-4a3f-85b7-448e5b65995c/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i [2023-11-21 20:59:45,696 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 20:59:46,261 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 20:59:46,262 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f641d9-b625-4a3f-85b7-448e5b65995c/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i [2023-11-21 20:59:46,320 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f641d9-b625-4a3f-85b7-448e5b65995c/bin/uautomizer-verify-bycVGegfSx/data/05ed299b0/11c92219d8a04a92b72f898a195cc70e/FLAG4e0315f57 [2023-11-21 20:59:46,339 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f641d9-b625-4a3f-85b7-448e5b65995c/bin/uautomizer-verify-bycVGegfSx/data/05ed299b0/11c92219d8a04a92b72f898a195cc70e [2023-11-21 20:59:46,345 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 20:59:46,348 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 20:59:46,351 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 20:59:46,351 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 20:59:46,357 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 20:59:46,357 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:59:46" (1/1) ... [2023-11-21 20:59:46,359 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@553fe947 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:46, skipping insertion in model container [2023-11-21 20:59:46,359 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 08:59:46" (1/1) ... [2023-11-21 20:59:46,473 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 20:59:47,937 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f641d9-b625-4a3f-85b7-448e5b65995c/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i[191320,191333] [2023-11-21 20:59:47,985 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:59:48,029 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 20:59:48,149 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n" ".balign 4\n" ".long 671f - .\n" ".previous\n" "671:" "\n\tlock; " "bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [4831-4837] [2023-11-21 20:59:48,151 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n" ".balign 4\n" ".long 671f - .\n" ".previous\n" "671:" "\n\tlock; " "btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [4844-4850] [2023-11-21 20:59:48,153 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n" ".balign 4\n" ".long 671f - .\n" ".previous\n" "671:" "\n\tlock; " "btr %2,%1\n\t" "sbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [4857-4864] [2023-11-21 20:59:48,197 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n" ".balign 4\n" ".long 671f - .\n" ".previous\n" "671:" "\n\tlock; " "incl %0": "+m" (v->counter)); [4894-4900] [2023-11-21 20:59:48,197 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n" ".balign 4\n" ".long 671f - .\n" ".previous\n" "671:" "\n\tlock; " "decl %0": "+m" (v->counter)); [4907-4913] [2023-11-21 20:59:48,293 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n" ".pushsection __bug_table,\"a\"\n" "2:\t.long 1b - 2b, %c0 - 2b\n" "\t.word %c1, 0\n" "\t.org 2b+%c2\n" ".popsection": : "i" ("/anthill/stuff/tacas-comp/work/current--X--drivers/net/can/usb/ems_usb.ko--X--bulklinux-3.0.1--X--68_1/linux-3.0.1/csd_deg_dscv/11/dscv_tempdir/dscv/ri/68_1/drivers/net/can/usb/ems_usb.c.common.c"), "i" (510), "i" (sizeof(struct bug_entry ))); [5717-5723] [2023-11-21 20:59:48,422 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f641d9-b625-4a3f-85b7-448e5b65995c/sv-benchmarks/c/ldv-linux-3.0/usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i[191320,191333] [2023-11-21 20:59:48,442 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 20:59:48,675 INFO L206 MainTranslator]: Completed translation [2023-11-21 20:59:48,676 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:48 WrapperNode [2023-11-21 20:59:48,676 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 20:59:48,677 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 20:59:48,677 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 20:59:48,678 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 20:59:48,686 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:48" (1/1) ... [2023-11-21 20:59:48,754 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:48" (1/1) ... [2023-11-21 20:59:48,864 INFO L138 Inliner]: procedures = 133, calls = 778, calls flagged for inlining = 54, calls inlined = 44, statements flattened = 1512 [2023-11-21 20:59:48,864 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 20:59:48,865 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 20:59:48,865 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 20:59:48,865 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 20:59:48,878 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:48" (1/1) ... [2023-11-21 20:59:48,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:48" (1/1) ... [2023-11-21 20:59:48,918 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:48" (1/1) ... [2023-11-21 20:59:49,143 INFO L187 HeapSplitter]: Split 335 memory accesses to 8 slices as follows [2, 40, 8, 256, 8, 8, 3, 10] [2023-11-21 20:59:49,152 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:48" (1/1) ... [2023-11-21 20:59:49,153 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:48" (1/1) ... [2023-11-21 20:59:49,228 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:48" (1/1) ... [2023-11-21 20:59:49,244 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:48" (1/1) ... [2023-11-21 20:59:49,267 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:48" (1/1) ... [2023-11-21 20:59:49,280 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:48" (1/1) ... [2023-11-21 20:59:49,305 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 20:59:49,306 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 20:59:49,307 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 20:59:49,307 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 20:59:49,308 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:48" (1/1) ... [2023-11-21 20:59:49,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 20:59:49,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f641d9-b625-4a3f-85b7-448e5b65995c/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 20:59:49,344 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f641d9-b625-4a3f-85b7-448e5b65995c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 20:59:49,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a9f641d9-b625-4a3f-85b7-448e5b65995c/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 20:59:49,396 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-11-21 20:59:49,397 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-11-21 20:59:49,398 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_init [2023-11-21 20:59:49,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_init [2023-11-21 20:59:49,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-21 20:59:49,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-21 20:59:49,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-21 20:59:49,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-21 20:59:49,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-21 20:59:49,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-21 20:59:49,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-21 20:59:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-11-21 20:59:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-11-21 20:59:49,400 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-11-21 20:59:49,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2023-11-21 20:59:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2023-11-21 20:59:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2023-11-21 20:59:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2023-11-21 20:59:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2023-11-21 20:59:49,401 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2023-11-21 20:59:49,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2023-11-21 20:59:49,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2023-11-21 20:59:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-21 20:59:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-21 20:59:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-21 20:59:49,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-21 20:59:49,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-21 20:59:49,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-21 20:59:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-21 20:59:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-21 20:59:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-21 20:59:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-21 20:59:49,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-21 20:59:49,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-21 20:59:49,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-21 20:59:49,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-21 20:59:49,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-21 20:59:49,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-21 20:59:49,406 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-21 20:59:49,407 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-21 20:59:49,407 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_control_cmd [2023-11-21 20:59:49,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_control_cmd [2023-11-21 20:59:49,407 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-21 20:59:49,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-21 20:59:49,407 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 20:59:49,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 20:59:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_exit [2023-11-21 20:59:49,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_exit [2023-11-21 20:59:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2023-11-21 20:59:49,408 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2023-11-21 20:59:49,408 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-21 20:59:49,408 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-21 20:59:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2023-11-21 20:59:49,409 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2023-11-21 20:59:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-21 20:59:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-21 20:59:49,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-21 20:59:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-21 20:59:49,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-21 20:59:49,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-21 20:59:49,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-21 20:59:49,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-21 20:59:49,412 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-11-21 20:59:49,412 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-11-21 20:59:49,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume_stop [2023-11-21 20:59:49,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume_stop [2023-11-21 20:59:49,412 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-11-21 20:59:49,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-11-21 20:59:49,413 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-21 20:59:49,414 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-21 20:59:49,414 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_command_msg [2023-11-21 20:59:49,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_command_msg [2023-11-21 20:59:49,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 20:59:49,414 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2023-11-21 20:59:49,415 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2023-11-21 20:59:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 20:59:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-21 20:59:49,415 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-21 20:59:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 20:59:49,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-21 20:59:49,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-21 20:59:49,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-21 20:59:49,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-21 20:59:49,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-21 20:59:49,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-21 20:59:49,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-21 20:59:49,417 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-21 20:59:49,417 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_write_mode [2023-11-21 20:59:49,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_write_mode [2023-11-21 20:59:49,418 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2023-11-21 20:59:49,418 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2023-11-21 20:59:49,418 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2023-11-21 20:59:49,418 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2023-11-21 20:59:49,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-21 20:59:49,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-21 20:59:49,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-21 20:59:49,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-21 20:59:49,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-21 20:59:49,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-21 20:59:49,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-21 20:59:49,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-21 20:59:49,420 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2023-11-21 20:59:49,420 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2023-11-21 20:59:49,420 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-21 20:59:49,420 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-21 20:59:49,421 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2023-11-21 20:59:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2023-11-21 20:59:49,421 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2023-11-21 20:59:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2023-11-21 20:59:49,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 20:59:49,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-21 20:59:49,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-21 20:59:49,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-21 20:59:49,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-21 20:59:49,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-21 20:59:49,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-21 20:59:49,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-21 20:59:49,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-21 20:59:49,424 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 20:59:49,424 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 20:59:49,424 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-21 20:59:49,424 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-21 20:59:49,424 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-21 20:59:49,424 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-21 20:59:49,425 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2023-11-21 20:59:49,425 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2023-11-21 20:59:49,425 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-21 20:59:49,425 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-21 20:59:49,426 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2023-11-21 20:59:49,426 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2023-11-21 20:59:49,427 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-21 20:59:49,427 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-21 20:59:49,427 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-21 20:59:49,427 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-21 20:59:49,427 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undefined_pointer [2023-11-21 20:59:49,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undefined_pointer [2023-11-21 20:59:49,428 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2023-11-21 20:59:49,428 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2023-11-21 20:59:49,428 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-21 20:59:49,428 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-21 20:59:49,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 20:59:49,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-21 20:59:49,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-21 20:59:49,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-21 20:59:49,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-21 20:59:49,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-21 20:59:49,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-21 20:59:49,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-21 20:59:49,435 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2023-11-21 20:59:49,436 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2023-11-21 20:59:49,436 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-11-21 20:59:49,437 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-11-21 20:59:49,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2023-11-21 20:59:49,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2023-11-21 20:59:49,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2023-11-21 20:59:49,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2023-11-21 20:59:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2023-11-21 20:59:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2023-11-21 20:59:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2023-11-21 20:59:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2023-11-21 20:59:49,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 20:59:49,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 20:59:49,937 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 20:59:49,940 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 20:59:50,253 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_assume_stopFINAL: assume true; [2023-11-21 20:59:50,537 WARN L820 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-21 20:59:52,320 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##28: assume !false; [2023-11-21 20:59:52,320 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##27: assume false; [2023-11-21 20:59:52,350 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 20:59:52,892 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 20:59:52,892 INFO L308 CfgBuilder]: Removed 13 assume(true) statements. [2023-11-21 20:59:52,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:52 BoogieIcfgContainer [2023-11-21 20:59:52,894 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 20:59:52,897 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 20:59:52,897 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 20:59:52,900 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 20:59:52,900 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 08:59:46" (1/3) ... [2023-11-21 20:59:52,901 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fef79ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:59:52, skipping insertion in model container [2023-11-21 20:59:52,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 08:59:48" (2/3) ... [2023-11-21 20:59:52,901 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fef79ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 08:59:52, skipping insertion in model container [2023-11-21 20:59:52,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 08:59:52" (3/3) ... [2023-11-21 20:59:52,903 INFO L112 eAbstractionObserver]: Analyzing ICFG usb_urb-drivers-net-can-usb-ems_usb.ko.cil.out.i [2023-11-21 20:59:52,923 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 20:59:52,923 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 20:59:52,983 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 20:59:52,989 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;@516a52cf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 20:59:52,990 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 20:59:52,996 INFO L276 IsEmpty]: Start isEmpty. Operand has 382 states, 231 states have (on average 1.3463203463203464) internal successors, (311), 243 states have internal predecessors, (311), 112 states have call successors, (112), 38 states have call predecessors, (112), 37 states have return successors, (110), 108 states have call predecessors, (110), 110 states have call successors, (110) [2023-11-21 20:59:53,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-21 20:59:53,004 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 20:59:53,005 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 20:59:53,005 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 20:59:53,010 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 20:59:53,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1564587381, now seen corresponding path program 1 times [2023-11-21 20:59:53,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 20:59:53,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559944379] [2023-11-21 20:59:53,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 20:59:53,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 20:59:54,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:54,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:59:54,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:55,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 20:59:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 20:59:55,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 20:59:55,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 20:59:55,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559944379] [2023-11-21 20:59:55,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559944379] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 20:59:55,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 20:59:55,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 20:59:55,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942221651] [2023-11-21 20:59:55,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 20:59:55,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 20:59:55,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 20:59:55,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 20:59:55,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 20:59:55,085 INFO L87 Difference]: Start difference. First operand has 382 states, 231 states have (on average 1.3463203463203464) internal successors, (311), 243 states have internal predecessors, (311), 112 states have call successors, (112), 38 states have call predecessors, (112), 37 states have return successors, (110), 108 states have call predecessors, (110), 110 states have call successors, (110) Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 21:00:00,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:00:00,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:00:00,521 INFO L93 Difference]: Finished difference Result 761 states and 1081 transitions. [2023-11-21 21:00:00,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-21 21:00:00,524 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2023-11-21 21:00:00,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:00:00,542 INFO L225 Difference]: With dead ends: 761 [2023-11-21 21:00:00,542 INFO L226 Difference]: Without dead ends: 385 [2023-11-21 21:00:00,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 21:00:00,553 INFO L413 NwaCegarLoop]: 448 mSDtfsCounter, 209 mSDsluCounter, 1073 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 1521 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-11-21 21:00:00,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 1521 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 254 Invalid, 1 Unknown, 0 Unchecked, 5.3s Time] [2023-11-21 21:00:00,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2023-11-21 21:00:00,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 380. [2023-11-21 21:00:00,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 232 states have (on average 1.2844827586206897) internal successors, (298), 240 states have internal predecessors, (298), 110 states have call successors, (110), 37 states have call predecessors, (110), 37 states have return successors, (107), 105 states have call predecessors, (107), 106 states have call successors, (107) [2023-11-21 21:00:00,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 515 transitions. [2023-11-21 21:00:00,642 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 515 transitions. Word has length 16 [2023-11-21 21:00:00,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:00:00,644 INFO L495 AbstractCegarLoop]: Abstraction has 380 states and 515 transitions. [2023-11-21 21:00:00,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-21 21:00:00,645 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 515 transitions. [2023-11-21 21:00:00,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-21 21:00:00,646 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:00:00,646 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:00:00,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 21:00:00,647 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:00:00,648 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:00,648 INFO L85 PathProgramCache]: Analyzing trace with hash 617265608, now seen corresponding path program 1 times [2023-11-21 21:00:00,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:00,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763951246] [2023-11-21 21:00:00,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:00,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:01,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:01,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:00:01,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:01,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:00:01,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:01,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-21 21:00:01,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:01,628 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 21:00:01,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:01,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763951246] [2023-11-21 21:00:01,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763951246] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:01,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:01,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 21:00:01,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448943799] [2023-11-21 21:00:01,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:01,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:00:01,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:01,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:00:01,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:00:01,633 INFO L87 Difference]: Start difference. First operand 380 states and 515 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-21 21:00:04,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:00:04,620 INFO L93 Difference]: Finished difference Result 958 states and 1295 transitions. [2023-11-21 21:00:04,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:00:04,620 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2023-11-21 21:00:04,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:00:04,629 INFO L225 Difference]: With dead ends: 958 [2023-11-21 21:00:04,631 INFO L226 Difference]: Without dead ends: 594 [2023-11-21 21:00:04,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:00:04,645 INFO L413 NwaCegarLoop]: 460 mSDtfsCounter, 291 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 883 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-21 21:00:04,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 883 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-11-21 21:00:04,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2023-11-21 21:00:04,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 590. [2023-11-21 21:00:04,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 590 states, 361 states have (on average 1.293628808864266) internal successors, (467), 372 states have internal predecessors, (467), 165 states have call successors, (165), 64 states have call predecessors, (165), 63 states have return successors, (162), 156 states have call predecessors, (162), 161 states have call successors, (162) [2023-11-21 21:00:04,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 794 transitions. [2023-11-21 21:00:04,732 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 794 transitions. Word has length 20 [2023-11-21 21:00:04,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:00:04,733 INFO L495 AbstractCegarLoop]: Abstraction has 590 states and 794 transitions. [2023-11-21 21:00:04,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-21 21:00:04,733 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 794 transitions. [2023-11-21 21:00:04,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-21 21:00:04,734 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:00:04,735 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 21:00:04,735 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-21 21:00:04,735 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:00:04,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:04,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1955119067, now seen corresponding path program 1 times [2023-11-21 21:00:04,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:04,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175726876] [2023-11-21 21:00:04,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:04,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:05,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:05,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:00:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:05,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:00:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:05,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-21 21:00:05,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:05,761 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 21:00:05,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:05,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175726876] [2023-11-21 21:00:05,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175726876] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:05,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:05,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 21:00:05,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799078074] [2023-11-21 21:00:05,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:05,763 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 21:00:05,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:05,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 21:00:05,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:00:05,764 INFO L87 Difference]: Start difference. First operand 590 states and 794 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-21 21:00:08,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:00:11,628 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:00:11,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:00:11,649 INFO L93 Difference]: Finished difference Result 869 states and 1166 transitions. [2023-11-21 21:00:11,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 21:00:11,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2023-11-21 21:00:11,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:00:11,658 INFO L225 Difference]: With dead ends: 869 [2023-11-21 21:00:11,658 INFO L226 Difference]: Without dead ends: 860 [2023-11-21 21:00:11,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 21:00:11,660 INFO L413 NwaCegarLoop]: 454 mSDtfsCounter, 376 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 880 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-11-21 21:00:11,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 880 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 1 Unknown, 0 Unchecked, 5.8s Time] [2023-11-21 21:00:11,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2023-11-21 21:00:11,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 851. [2023-11-21 21:00:11,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 851 states, 521 states have (on average 1.2859884836852207) internal successors, (670), 533 states have internal predecessors, (670), 239 states have call successors, (239), 93 states have call predecessors, (239), 90 states have return successors, (235), 226 states have call predecessors, (235), 235 states have call successors, (235) [2023-11-21 21:00:11,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 851 states to 851 states and 1144 transitions. [2023-11-21 21:00:11,734 INFO L78 Accepts]: Start accepts. Automaton has 851 states and 1144 transitions. Word has length 21 [2023-11-21 21:00:11,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:00:11,735 INFO L495 AbstractCegarLoop]: Abstraction has 851 states and 1144 transitions. [2023-11-21 21:00:11,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-21 21:00:11,736 INFO L276 IsEmpty]: Start isEmpty. Operand 851 states and 1144 transitions. [2023-11-21 21:00:11,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-21 21:00:11,740 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:00:11,740 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 21:00:11,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-21 21:00:11,741 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:00:11,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:11,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1517164771, now seen corresponding path program 1 times [2023-11-21 21:00:11,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:11,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896064565] [2023-11-21 21:00:11,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:11,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:12,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:12,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:00:12,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:12,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:00:12,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:12,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-21 21:00:12,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:12,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-21 21:00:12,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:12,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-21 21:00:12,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:12,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-11-21 21:00:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:12,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:00:12,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:12,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2023-11-21 21:00:12,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:12,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-21 21:00:12,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:12,804 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 21:00:12,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:12,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896064565] [2023-11-21 21:00:12,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896064565] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:12,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:12,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 21:00:12,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837225980] [2023-11-21 21:00:12,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:12,806 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 21:00:12,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:12,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 21:00:12,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-21 21:00:12,807 INFO L87 Difference]: Start difference. First operand 851 states and 1144 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-21 21:00:20,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:00:22,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:00:22,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 21:00:22,669 INFO L93 Difference]: Finished difference Result 2091 states and 2926 transitions. [2023-11-21 21:00:22,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-21 21:00:22,670 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 58 [2023-11-21 21:00:22,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 21:00:22,681 INFO L225 Difference]: With dead ends: 2091 [2023-11-21 21:00:22,682 INFO L226 Difference]: Without dead ends: 1251 [2023-11-21 21:00:22,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-21 21:00:22,686 INFO L413 NwaCegarLoop]: 410 mSDtfsCounter, 321 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 711 mSolverCounterSat, 355 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 355 IncrementalHoareTripleChecker+Valid, 711 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.5s IncrementalHoareTripleChecker+Time [2023-11-21 21:00:22,687 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 1024 Invalid, 1067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [355 Valid, 711 Invalid, 1 Unknown, 0 Unchecked, 9.5s Time] [2023-11-21 21:00:22,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2023-11-21 21:00:22,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 1224. [2023-11-21 21:00:22,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1224 states, 766 states have (on average 1.318537859007833) internal successors, (1010), 786 states have internal predecessors, (1010), 367 states have call successors, (367), 93 states have call predecessors, (367), 90 states have return successors, (363), 348 states have call predecessors, (363), 363 states have call successors, (363) [2023-11-21 21:00:22,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1224 states to 1224 states and 1740 transitions. [2023-11-21 21:00:22,817 INFO L78 Accepts]: Start accepts. Automaton has 1224 states and 1740 transitions. Word has length 58 [2023-11-21 21:00:22,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 21:00:22,818 INFO L495 AbstractCegarLoop]: Abstraction has 1224 states and 1740 transitions. [2023-11-21 21:00:22,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (11), 4 states have call predecessors, (11), 1 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-21 21:00:22,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1224 states and 1740 transitions. [2023-11-21 21:00:22,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-21 21:00:22,823 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 21:00:22,824 INFO L195 NwaCegarLoop]: trace histogram [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] [2023-11-21 21:00:22,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-21 21:00:22,824 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 21:00:22,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 21:00:22,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1038365163, now seen corresponding path program 1 times [2023-11-21 21:00:22,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 21:00:22,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629126462] [2023-11-21 21:00:22,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 21:00:22,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 21:00:23,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:24,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:00:24,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:24,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 21:00:24,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:24,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-21 21:00:24,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:24,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-11-21 21:00:24,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:24,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-21 21:00:24,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:24,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-21 21:00:24,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:24,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-21 21:00:24,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:24,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-21 21:00:24,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:24,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2023-11-21 21:00:24,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 21:00:24,370 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-21 21:00:24,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 21:00:24,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629126462] [2023-11-21 21:00:24,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629126462] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 21:00:24,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 21:00:24,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-11-21 21:00:24,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081409439] [2023-11-21 21:00:24,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 21:00:24,373 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-21 21:00:24,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 21:00:24,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-21 21:00:24,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-21 21:00:24,375 INFO L87 Difference]: Start difference. First operand 1224 states and 1740 transitions. Second operand has 9 states, 9 states have (on average 4.111111111111111) internal successors, (37), 6 states have internal predecessors, (37), 5 states have call successors, (10), 4 states have call predecessors, (10), 2 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-11-21 21:00:32,723 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 21:00:35,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []