./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_984977f0-6e8c-48d3-b16f-43bd2ae078e4/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_984977f0-6e8c-48d3-b16f-43bd2ae078e4/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_984977f0-6e8c-48d3-b16f-43bd2ae078e4/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_984977f0-6e8c-48d3-b16f-43bd2ae078e4/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_984977f0-6e8c-48d3-b16f-43bd2ae078e4/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_984977f0-6e8c-48d3-b16f-43bd2ae078e4/bin/uautomizer-verify-VRDe98Ueme --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 be936ec9376452d086f72aa92ac4fe7deb233a068e40e0ed8f478fbc228d19b6 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 11:47:13,602 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 11:47:13,690 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_984977f0-6e8c-48d3-b16f-43bd2ae078e4/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-26 11:47:13,696 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 11:47:13,696 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 11:47:13,723 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 11:47:13,723 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 11:47:13,724 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 11:47:13,725 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 11:47:13,725 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 11:47:13,726 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 11:47:13,727 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 11:47:13,728 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 11:47:13,728 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 11:47:13,729 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 11:47:13,729 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 11:47:13,730 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 11:47:13,731 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 11:47:13,731 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 11:47:13,732 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 11:47:13,732 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 11:47:13,733 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 11:47:13,734 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 11:47:13,734 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 11:47:13,735 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 11:47:13,735 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 11:47:13,736 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 11:47:13,737 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 11:47:13,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:47:13,738 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 11:47:13,738 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 11:47:13,739 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 11:47:13,739 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 11:47:13,740 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 11:47:13,740 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 11:47:13,741 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 11:47:13,741 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 11:47:13,742 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 11:47:13,742 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 11:47:13,743 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_984977f0-6e8c-48d3-b16f-43bd2ae078e4/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_984977f0-6e8c-48d3-b16f-43bd2ae078e4/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be936ec9376452d086f72aa92ac4fe7deb233a068e40e0ed8f478fbc228d19b6 [2023-11-26 11:47:14,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 11:47:14,034 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 11:47:14,037 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 11:47:14,038 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 11:47:14,039 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 11:47:14,040 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_984977f0-6e8c-48d3-b16f-43bd2ae078e4/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i [2023-11-26 11:47:17,109 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 11:47:17,695 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 11:47:17,695 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_984977f0-6e8c-48d3-b16f-43bd2ae078e4/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i [2023-11-26 11:47:17,728 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_984977f0-6e8c-48d3-b16f-43bd2ae078e4/bin/uautomizer-verify-VRDe98Ueme/data/322e18623/ba605ff15cba409087cdf6cfd4b6fb56/FLAGcce376550 [2023-11-26 11:47:17,748 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_984977f0-6e8c-48d3-b16f-43bd2ae078e4/bin/uautomizer-verify-VRDe98Ueme/data/322e18623/ba605ff15cba409087cdf6cfd4b6fb56 [2023-11-26 11:47:17,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 11:47:17,757 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 11:47:17,759 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 11:47:17,759 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 11:47:17,764 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 11:47:17,767 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:47:17" (1/1) ... [2023-11-26 11:47:17,768 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1342b95c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:17, skipping insertion in model container [2023-11-26 11:47:17,769 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 11:47:17" (1/1) ... [2023-11-26 11:47:17,881 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 11:47:18,897 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_984977f0-6e8c-48d3-b16f-43bd2ae078e4/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i[164250,164263] [2023-11-26 11:47:19,377 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:47:19,414 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 11:47:19,575 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; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5441] [2023-11-26 11:47:19,577 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; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5448] [2023-11-26 11:47:19,578 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; btr %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5456-5457] [2023-11-26 11:47:19,581 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)); [5485] [2023-11-26 11:47:19,582 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)); [5492] [2023-11-26 11:47:19,593 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_984977f0-6e8c-48d3-b16f-43bd2ae078e4/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i[164250,164263] [2023-11-26 11:47:19,626 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 *)"/work/ldvuser/mutilin/launch/work/current--X--drivers--X--defaultlinux-3.12-rc1.tar.xz--X--144_2a--X--cpachecker/linux-3.12-rc1.tar.xz/csd_deg_dscv/6225/dscv_tempdir/dscv/ri/144_2a/drivers/net/can/usb/ems_usb.o.c.prepared"), "i" (546), "i" (12UL)); [6159-6160] [2023-11-26 11:47:19,766 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 11:47:19,854 INFO L206 MainTranslator]: Completed translation [2023-11-26 11:47:19,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:19 WrapperNode [2023-11-26 11:47:19,856 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 11:47:19,859 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 11:47:19,859 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 11:47:19,859 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 11:47:19,867 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:19" (1/1) ... [2023-11-26 11:47:19,943 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:19" (1/1) ... [2023-11-26 11:47:20,082 INFO L138 Inliner]: procedures = 169, calls = 760, calls flagged for inlining = 78, calls inlined = 78, statements flattened = 2264 [2023-11-26 11:47:20,083 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 11:47:20,083 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 11:47:20,084 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 11:47:20,084 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 11:47:20,098 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:19" (1/1) ... [2023-11-26 11:47:20,098 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:19" (1/1) ... [2023-11-26 11:47:20,126 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:19" (1/1) ... [2023-11-26 11:47:20,609 INFO L175 MemorySlicer]: Split 446 memory accesses to 8 slices as follows [2, 336, 9, 42, 20, 20, 9, 8]. 75 percent of accesses are in the largest equivalence class. The 140 initializations are split as follows [2, 88, 0, 42, 0, 0, 0, 8]. The 120 writes are split as follows [0, 104, 5, 0, 0, 11, 0, 0]. [2023-11-26 11:47:20,610 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:19" (1/1) ... [2023-11-26 11:47:20,610 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:19" (1/1) ... [2023-11-26 11:47:20,684 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:19" (1/1) ... [2023-11-26 11:47:20,712 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:19" (1/1) ... [2023-11-26 11:47:20,750 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:19" (1/1) ... [2023-11-26 11:47:20,772 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:19" (1/1) ... [2023-11-26 11:47:20,810 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 11:47:20,812 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 11:47:20,813 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 11:47:20,813 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 11:47:20,814 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:19" (1/1) ... [2023-11-26 11:47:20,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 11:47:20,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_984977f0-6e8c-48d3-b16f-43bd2ae078e4/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 11:47:20,857 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_984977f0-6e8c-48d3-b16f-43bd2ae078e4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 11:47:20,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_984977f0-6e8c-48d3-b16f-43bd2ae078e4/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 11:47:20,903 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2023-11-26 11:47:20,903 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2023-11-26 11:47:20,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-26 11:47:20,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-26 11:47:20,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-26 11:47:20,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-26 11:47:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-26 11:47:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-26 11:47:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-26 11:47:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-11-26 11:47:20,906 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_18 [2023-11-26 11:47:20,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_18 [2023-11-26 11:47:20,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_4 [2023-11-26 11:47:20,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_4 [2023-11-26 11:47:20,907 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_3 [2023-11-26 11:47:20,907 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_3 [2023-11-26 11:47:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_2 [2023-11-26 11:47:20,908 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_2 [2023-11-26 11:47:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2023-11-26 11:47:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2023-11-26 11:47:20,908 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2023-11-26 11:47:20,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2023-11-26 11:47:20,909 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2023-11-26 11:47:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2023-11-26 11:47:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2023-11-26 11:47:20,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2023-11-26 11:47:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-26 11:47:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-26 11:47:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-26 11:47:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-26 11:47:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-26 11:47:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-26 11:47:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-26 11:47:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-26 11:47:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-26 11:47:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-26 11:47:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-26 11:47:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-26 11:47:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-26 11:47:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-26 11:47:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-26 11:47:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-26 11:47:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-26 11:47:20,913 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-26 11:47:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2023-11-26 11:47:20,914 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2023-11-26 11:47:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_read_bulk_callback [2023-11-26 11:47:20,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_read_bulk_callback [2023-11-26 11:47:20,914 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2023-11-26 11:47:20,914 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2023-11-26 11:47:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2023-11-26 11:47:20,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2023-11-26 11:47:20,915 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_control_cmd [2023-11-26 11:47:20,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_control_cmd [2023-11-26 11:47:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-26 11:47:20,916 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-26 11:47:20,916 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-26 11:47:20,917 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-26 11:47:20,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-26 11:47:20,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-26 11:47:20,918 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2023-11-26 11:47:20,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2023-11-26 11:47:20,919 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-26 11:47:20,919 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-26 11:47:20,919 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2023-11-26 11:47:20,919 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2023-11-26 11:47:20,919 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-26 11:47:20,920 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-26 11:47:20,920 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2023-11-26 11:47:20,921 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2023-11-26 11:47:20,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-26 11:47:20,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-26 11:47:20,921 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-26 11:47:20,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-26 11:47:20,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-26 11:47:20,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-26 11:47:20,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-26 11:47:20,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-26 11:47:20,922 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-26 11:47:20,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-26 11:47:20,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-26 11:47:20,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-26 11:47:20,923 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 11:47:20,924 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 11:47:20,924 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-26 11:47:20,924 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-26 11:47:20,925 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_command_msg [2023-11-26 11:47:20,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_command_msg [2023-11-26 11:47:20,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-26 11:47:20,925 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2023-11-26 11:47:20,925 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2023-11-26 11:47:20,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2023-11-26 11:47:20,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2023-11-26 11:47:20,926 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_all_urbs [2023-11-26 11:47:20,926 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_all_urbs [2023-11-26 11:47:20,926 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 11:47:20,926 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-26 11:47:20,927 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-26 11:47:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-26 11:47:20,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-26 11:47:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-26 11:47:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-26 11:47:20,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-26 11:47:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-26 11:47:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-26 11:47:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-26 11:47:20,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-26 11:47:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-26 11:47:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-26 11:47:20,929 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_write_mode [2023-11-26 11:47:20,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_write_mode [2023-11-26 11:47:20,930 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-26 11:47:20,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-26 11:47:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2023-11-26 11:47:20,931 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2023-11-26 11:47:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2023-11-26 11:47:20,931 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2023-11-26 11:47:20,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-26 11:47:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-26 11:47:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-26 11:47:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-26 11:47:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-26 11:47:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-26 11:47:20,932 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-26 11:47:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-26 11:47:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_disconnect [2023-11-26 11:47:20,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_disconnect [2023-11-26 11:47:20,933 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2023-11-26 11:47:20,933 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2023-11-26 11:47:20,934 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-11-26 11:47:20,935 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-11-26 11:47:20,935 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_read_interrupt_callback [2023-11-26 11:47:20,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_read_interrupt_callback [2023-11-26 11:47:20,936 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2023-11-26 11:47:20,936 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2023-11-26 11:47:20,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-26 11:47:20,937 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2023-11-26 11:47:20,937 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2023-11-26 11:47:20,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-26 11:47:20,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-26 11:47:20,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-26 11:47:20,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-26 11:47:20,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-26 11:47:20,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-26 11:47:20,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-26 11:47:20,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-26 11:47:20,942 INFO L130 BoogieDeclarations]: Found specification of procedure ems_usb_rx_err [2023-11-26 11:47:20,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ems_usb_rx_err [2023-11-26 11:47:20,944 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-26 11:47:20,945 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-26 11:47:20,945 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2023-11-26 11:47:20,946 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2023-11-26 11:47:20,946 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-26 11:47:20,946 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-26 11:47:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2023-11-26 11:47:20,952 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2023-11-26 11:47:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-26 11:47:20,952 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-26 11:47:20,952 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2023-11-26 11:47:20,953 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2023-11-26 11:47:20,953 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-26 11:47:20,953 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-26 11:47:20,953 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2023-11-26 11:47:20,953 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2023-11-26 11:47:20,953 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2023-11-26 11:47:20,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2023-11-26 11:47:20,954 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2023-11-26 11:47:20,954 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2023-11-26 11:47:20,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 11:47:20,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-26 11:47:20,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-26 11:47:20,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-26 11:47:20,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-26 11:47:20,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-26 11:47:20,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-26 11:47:20,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-26 11:47:20,955 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2023-11-26 11:47:20,955 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2023-11-26 11:47:20,955 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2023-11-26 11:47:20,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2023-11-26 11:47:20,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2023-11-26 11:47:20,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2023-11-26 11:47:20,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2023-11-26 11:47:20,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2023-11-26 11:47:20,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2023-11-26 11:47:20,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2023-11-26 11:47:20,956 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-26 11:47:20,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-26 11:47:20,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 11:47:20,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 11:47:21,526 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 11:47:21,530 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 11:47:21,618 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-26 11:47:22,239 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2023-11-26 11:47:26,952 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 11:47:27,257 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 11:47:27,257 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-26 11:47:27,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:47:27 BoogieIcfgContainer [2023-11-26 11:47:27,259 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 11:47:27,262 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 11:47:27,263 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 11:47:27,266 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 11:47:27,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 11:47:17" (1/3) ... [2023-11-26 11:47:27,268 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@245e954d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:47:27, skipping insertion in model container [2023-11-26 11:47:27,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 11:47:19" (2/3) ... [2023-11-26 11:47:27,269 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@245e954d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 11:47:27, skipping insertion in model container [2023-11-26 11:47:27,269 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 11:47:27" (3/3) ... [2023-11-26 11:47:27,272 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--ems_usb.ko-entry_point.cil.out.i [2023-11-26 11:47:27,293 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 11:47:27,293 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 11:47:27,407 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 11:47:27,419 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;@24e87bb9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 11:47:27,420 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 11:47:27,432 INFO L276 IsEmpty]: Start isEmpty. Operand has 653 states, 444 states have (on average 1.4436936936936937) internal successors, (641), 468 states have internal predecessors, (641), 157 states have call successors, (157), 52 states have call predecessors, (157), 50 states have return successors, (151), 146 states have call predecessors, (151), 151 states have call successors, (151) [2023-11-26 11:47:27,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-26 11:47:27,450 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:47:27,452 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] [2023-11-26 11:47:27,452 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:47:27,461 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:27,462 INFO L85 PathProgramCache]: Analyzing trace with hash 1109866233, now seen corresponding path program 1 times [2023-11-26 11:47:27,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:27,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898392031] [2023-11-26 11:47:27,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:27,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:27,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:28,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:47:28,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:28,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:47:28,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:28,294 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-26 11:47:28,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:28,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898392031] [2023-11-26 11:47:28,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898392031] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:28,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:28,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:47:28,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819480205] [2023-11-26 11:47:28,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:28,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:47:28,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:28,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:47:28,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:47:28,341 INFO L87 Difference]: Start difference. First operand has 653 states, 444 states have (on average 1.4436936936936937) internal successors, (641), 468 states have internal predecessors, (641), 157 states have call successors, (157), 52 states have call predecessors, (157), 50 states have return successors, (151), 146 states have call predecessors, (151), 151 states have call successors, (151) Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:47:35,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-26 11:47:35,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:47:35,943 INFO L93 Difference]: Finished difference Result 2078 states and 3133 transitions. [2023-11-26 11:47:35,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:47:35,945 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23 [2023-11-26 11:47:35,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:47:35,977 INFO L225 Difference]: With dead ends: 2078 [2023-11-26 11:47:35,977 INFO L226 Difference]: Without dead ends: 1407 [2023-11-26 11:47:35,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:47:35,992 INFO L413 NwaCegarLoop]: 707 mSDtfsCounter, 1266 mSDsluCounter, 1002 mSDsCounter, 0 mSdLazyCounter, 787 mSolverCounterSat, 463 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1386 SdHoareTripleChecker+Valid, 1709 SdHoareTripleChecker+Invalid, 1250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 463 IncrementalHoareTripleChecker+Valid, 787 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:47:35,993 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1386 Valid, 1709 Invalid, 1250 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [463 Valid, 787 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2023-11-26 11:47:36,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1407 states. [2023-11-26 11:47:36,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1407 to 1259. [2023-11-26 11:47:36,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1259 states, 867 states have (on average 1.389850057670127) internal successors, (1205), 895 states have internal predecessors, (1205), 293 states have call successors, (293), 99 states have call predecessors, (293), 98 states have return successors, (288), 278 states have call predecessors, (288), 288 states have call successors, (288) [2023-11-26 11:47:36,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1259 states to 1259 states and 1786 transitions. [2023-11-26 11:47:36,195 INFO L78 Accepts]: Start accepts. Automaton has 1259 states and 1786 transitions. Word has length 23 [2023-11-26 11:47:36,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:47:36,195 INFO L495 AbstractCegarLoop]: Abstraction has 1259 states and 1786 transitions. [2023-11-26 11:47:36,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-26 11:47:36,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1259 states and 1786 transitions. [2023-11-26 11:47:36,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-26 11:47:36,205 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:47:36,205 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:36,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 11:47:36,205 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:47:36,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:36,206 INFO L85 PathProgramCache]: Analyzing trace with hash 694805279, now seen corresponding path program 1 times [2023-11-26 11:47:36,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:36,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136589565] [2023-11-26 11:47:36,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:36,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:36,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:36,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:47:36,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:36,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:47:36,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:36,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-26 11:47:36,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:36,772 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-26 11:47:36,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:36,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136589565] [2023-11-26 11:47:36,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136589565] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:36,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:36,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:47:36,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561069842] [2023-11-26 11:47:36,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:36,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:47:36,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:36,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:47:36,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:47:36,776 INFO L87 Difference]: Start difference. First operand 1259 states and 1786 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 11:47:42,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-26 11:47:45,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-26 11:47:48,271 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.53s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-26 11:47:48,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:47:48,327 INFO L93 Difference]: Finished difference Result 4062 states and 5969 transitions. [2023-11-26 11:47:48,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-26 11:47:48,328 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 32 [2023-11-26 11:47:48,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:47:48,352 INFO L225 Difference]: With dead ends: 4062 [2023-11-26 11:47:48,352 INFO L226 Difference]: Without dead ends: 2808 [2023-11-26 11:47:48,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:47:48,360 INFO L413 NwaCegarLoop]: 1077 mSDtfsCounter, 1128 mSDsluCounter, 1146 mSDsCounter, 0 mSdLazyCounter, 993 mSolverCounterSat, 357 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1232 SdHoareTripleChecker+Valid, 2223 SdHoareTripleChecker+Invalid, 1350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 357 IncrementalHoareTripleChecker+Valid, 993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2023-11-26 11:47:48,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1232 Valid, 2223 Invalid, 1350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [357 Valid, 993 Invalid, 0 Unknown, 0 Unchecked, 11.2s Time] [2023-11-26 11:47:48,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2808 states. [2023-11-26 11:47:48,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2808 to 2614. [2023-11-26 11:47:48,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2614 states, 1804 states have (on average 1.3880266075388026) internal successors, (2504), 1868 states have internal predecessors, (2504), 599 states have call successors, (599), 197 states have call predecessors, (599), 210 states have return successors, (670), 582 states have call predecessors, (670), 594 states have call successors, (670) [2023-11-26 11:47:48,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2614 states to 2614 states and 3773 transitions. [2023-11-26 11:47:48,562 INFO L78 Accepts]: Start accepts. Automaton has 2614 states and 3773 transitions. Word has length 32 [2023-11-26 11:47:48,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:47:48,562 INFO L495 AbstractCegarLoop]: Abstraction has 2614 states and 3773 transitions. [2023-11-26 11:47:48,563 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 11:47:48,563 INFO L276 IsEmpty]: Start isEmpty. Operand 2614 states and 3773 transitions. [2023-11-26 11:47:48,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-26 11:47:48,565 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:47:48,565 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:48,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 11:47:48,566 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:47:48,566 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:48,566 INFO L85 PathProgramCache]: Analyzing trace with hash 63798696, now seen corresponding path program 1 times [2023-11-26 11:47:48,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:48,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909447227] [2023-11-26 11:47:48,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:48,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:48,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:49,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:47:49,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:49,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:47:49,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:49,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-26 11:47:49,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:49,110 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-26 11:47:49,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:49,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909447227] [2023-11-26 11:47:49,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909447227] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:49,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:49,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:47:49,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790185572] [2023-11-26 11:47:49,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:49,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:47:49,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:49,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:47:49,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:47:49,116 INFO L87 Difference]: Start difference. First operand 2614 states and 3773 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 11:47:53,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-26 11:47:57,080 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-26 11:47:57,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:47:57,116 INFO L93 Difference]: Finished difference Result 2800 states and 4104 transitions. [2023-11-26 11:47:57,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:47:57,117 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 33 [2023-11-26 11:47:57,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:47:57,141 INFO L225 Difference]: With dead ends: 2800 [2023-11-26 11:47:57,141 INFO L226 Difference]: Without dead ends: 2797 [2023-11-26 11:47:57,143 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:47:57,145 INFO L413 NwaCegarLoop]: 696 mSDtfsCounter, 1037 mSDsluCounter, 355 mSDsCounter, 0 mSdLazyCounter, 461 mSolverCounterSat, 284 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1127 SdHoareTripleChecker+Valid, 1051 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 461 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-11-26 11:47:57,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1127 Valid, 1051 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 461 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2023-11-26 11:47:57,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2023-11-26 11:47:57,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 2613. [2023-11-26 11:47:57,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2613 states, 1804 states have (on average 1.3874722838137472) internal successors, (2503), 1867 states have internal predecessors, (2503), 598 states have call successors, (598), 197 states have call predecessors, (598), 210 states have return successors, (670), 582 states have call predecessors, (670), 594 states have call successors, (670) [2023-11-26 11:47:57,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2613 states to 2613 states and 3771 transitions. [2023-11-26 11:47:57,394 INFO L78 Accepts]: Start accepts. Automaton has 2613 states and 3771 transitions. Word has length 33 [2023-11-26 11:47:57,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:47:57,395 INFO L495 AbstractCegarLoop]: Abstraction has 2613 states and 3771 transitions. [2023-11-26 11:47:57,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 11:47:57,395 INFO L276 IsEmpty]: Start isEmpty. Operand 2613 states and 3771 transitions. [2023-11-26 11:47:57,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-26 11:47:57,397 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:47:57,397 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:47:57,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-26 11:47:57,398 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:47:57,398 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:47:57,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1977435970, now seen corresponding path program 1 times [2023-11-26 11:47:57,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:47:57,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553820586] [2023-11-26 11:47:57,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:47:57,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:47:57,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:57,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:47:57,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:57,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:47:57,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:57,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-26 11:47:57,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:47:57,732 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-26 11:47:57,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:47:57,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553820586] [2023-11-26 11:47:57,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553820586] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:47:57,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:47:57,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:47:57,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366867792] [2023-11-26 11:47:57,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:47:57,734 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:47:57,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:47:57,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:47:57,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:47:57,736 INFO L87 Difference]: Start difference. First operand 2613 states and 3771 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 11:48:03,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-26 11:48:03,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 11:48:03,243 INFO L93 Difference]: Finished difference Result 2799 states and 4102 transitions. [2023-11-26 11:48:03,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-26 11:48:03,244 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 34 [2023-11-26 11:48:03,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 11:48:03,267 INFO L225 Difference]: With dead ends: 2799 [2023-11-26 11:48:03,267 INFO L226 Difference]: Without dead ends: 2796 [2023-11-26 11:48:03,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-26 11:48:03,270 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 1034 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 462 mSolverCounterSat, 282 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1125 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 282 IncrementalHoareTripleChecker+Valid, 462 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-11-26 11:48:03,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1125 Valid, 1047 Invalid, 744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [282 Valid, 462 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-11-26 11:48:03,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2796 states. [2023-11-26 11:48:03,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2796 to 2612. [2023-11-26 11:48:03,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2612 states, 1804 states have (on average 1.3869179600886918) internal successors, (2502), 1866 states have internal predecessors, (2502), 597 states have call successors, (597), 197 states have call predecessors, (597), 210 states have return successors, (670), 582 states have call predecessors, (670), 594 states have call successors, (670) [2023-11-26 11:48:03,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2612 states to 2612 states and 3769 transitions. [2023-11-26 11:48:03,493 INFO L78 Accepts]: Start accepts. Automaton has 2612 states and 3769 transitions. Word has length 34 [2023-11-26 11:48:03,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 11:48:03,493 INFO L495 AbstractCegarLoop]: Abstraction has 2612 states and 3769 transitions. [2023-11-26 11:48:03,494 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-11-26 11:48:03,494 INFO L276 IsEmpty]: Start isEmpty. Operand 2612 states and 3769 transitions. [2023-11-26 11:48:03,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-26 11:48:03,496 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 11:48:03,496 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 11:48:03,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-26 11:48:03,496 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 11:48:03,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 11:48:03,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1170654187, now seen corresponding path program 1 times [2023-11-26 11:48:03,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 11:48:03,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049944337] [2023-11-26 11:48:03,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 11:48:03,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 11:48:03,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:03,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-26 11:48:03,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:03,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 11:48:03,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:03,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-11-26 11:48:03,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 11:48:03,756 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-26 11:48:03,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 11:48:03,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049944337] [2023-11-26 11:48:03,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049944337] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 11:48:03,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 11:48:03,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-26 11:48:03,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158824548] [2023-11-26 11:48:03,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 11:48:03,758 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-26 11:48:03,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 11:48:03,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-26 11:48:03,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-26 11:48:03,759 INFO L87 Difference]: Start difference. First operand 2612 states and 3769 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)