./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya --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 bf5e73d985bafa5e008f16fba6fb54da90c4b127699bd918a748611ea9b79793 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 03:07:20,822 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 03:07:20,883 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-29 03:07:20,887 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 03:07:20,888 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 03:07:20,911 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 03:07:20,911 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 03:07:20,912 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 03:07:20,912 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 03:07:20,913 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 03:07:20,914 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 03:07:20,914 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 03:07:20,915 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 03:07:20,915 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 03:07:20,916 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 03:07:20,917 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 03:07:20,917 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 03:07:20,918 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 03:07:20,918 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 03:07:20,918 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 03:07:20,919 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 03:07:20,920 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 03:07:20,920 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 03:07:20,920 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 03:07:20,921 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 03:07:20,921 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 03:07:20,922 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 03:07:20,922 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 03:07:20,923 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:07:20,923 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 03:07:20,924 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 03:07:20,924 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 03:07:20,924 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 03:07:20,925 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 03:07:20,925 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 03:07:20,926 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 03:07:20,926 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 03:07:20,926 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 03:07:20,927 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 03:07:20,927 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_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf5e73d985bafa5e008f16fba6fb54da90c4b127699bd918a748611ea9b79793 [2023-11-29 03:07:21,136 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 03:07:21,158 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 03:07:21,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 03:07:21,161 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 03:07:21,161 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 03:07:21,162 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i [2023-11-29 03:07:23,938 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 03:07:24,302 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 03:07:24,303 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i [2023-11-29 03:07:24,331 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/data/b3a21ff15/8a5d539791f84b489bc7e4d319d431f9/FLAG19b205c31 [2023-11-29 03:07:24,344 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/data/b3a21ff15/8a5d539791f84b489bc7e4d319d431f9 [2023-11-29 03:07:24,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 03:07:24,348 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 03:07:24,350 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 03:07:24,350 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 03:07:24,355 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 03:07:24,356 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:07:24" (1/1) ... [2023-11-29 03:07:24,357 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d159e03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:24, skipping insertion in model container [2023-11-29 03:07:24,357 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 03:07:24" (1/1) ... [2023-11-29 03:07:24,446 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 03:07:25,533 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_555f71ca-8b2d-4179-a331-c08d11631cb4/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i[158797,158810] [2023-11-29 03:07:25,564 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:07:25,605 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 03:07:25,676 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [2769-2770] [2023-11-29 03:07:25,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [2796] [2023-11-29 03:07:25,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [2799] [2023-11-29 03:07:25,680 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [2802] [2023-11-29 03:07:25,680 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [2805] [2023-11-29 03:07:25,729 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)ep->ep_list.next) [3649] [2023-11-29 03:07:25,731 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)ep->ep_list.next) [3671] [2023-11-29 03:07:25,815 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_555f71ca-8b2d-4179-a331-c08d11631cb4/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i[158797,158810] [2023-11-29 03:07:25,824 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 03:07:25,871 WARN L675 CHandler]: The function strrchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 03:07:25,871 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-29 03:07:25,877 INFO L206 MainTranslator]: Completed translation [2023-11-29 03:07:25,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:25 WrapperNode [2023-11-29 03:07:25,877 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 03:07:25,878 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 03:07:25,878 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 03:07:25,878 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 03:07:25,884 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:25" (1/1) ... [2023-11-29 03:07:25,939 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:25" (1/1) ... [2023-11-29 03:07:26,064 INFO L138 Inliner]: procedures = 189, calls = 1332, calls flagged for inlining = 77, calls inlined = 77, statements flattened = 3579 [2023-11-29 03:07:26,065 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 03:07:26,065 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 03:07:26,065 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 03:07:26,065 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 03:07:26,074 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:25" (1/1) ... [2023-11-29 03:07:26,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:25" (1/1) ... [2023-11-29 03:07:26,093 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:25" (1/1) ... [2023-11-29 03:07:26,577 INFO L175 MemorySlicer]: Split 657 memory accesses to 13 slices as follows [2, 13, 5, 2, 6, 12, 25, 19, 8, 15, 21, 529, 0]. 81 percent of accesses are in the largest equivalence class. The 189 initializations are split as follows [2, 8, 2, 0, 1, 12, 25, 8, 0, 0, 21, 110, 0]. The 207 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 1, 1, 12, 0, 193, 0]. [2023-11-29 03:07:26,577 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:25" (1/1) ... [2023-11-29 03:07:26,578 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:25" (1/1) ... [2023-11-29 03:07:26,670 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:25" (1/1) ... [2023-11-29 03:07:26,692 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:25" (1/1) ... [2023-11-29 03:07:26,712 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:25" (1/1) ... [2023-11-29 03:07:26,725 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:25" (1/1) ... [2023-11-29 03:07:26,751 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 03:07:26,752 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 03:07:26,752 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 03:07:26,752 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 03:07:26,753 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:25" (1/1) ... [2023-11-29 03:07:26,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 03:07:26,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:07:26,781 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 03:07:26,783 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 03:07:26,813 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2023-11-29 03:07:26,814 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2023-11-29 03:07:26,814 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-29 03:07:26,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-29 03:07:26,814 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2023-11-29 03:07:26,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2023-11-29 03:07:26,814 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-11-29 03:07:26,814 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-11-29 03:07:26,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-29 03:07:26,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-29 03:07:26,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-29 03:07:26,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-29 03:07:26,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-29 03:07:26,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-29 03:07:26,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-29 03:07:26,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-11-29 03:07:26,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2023-11-29 03:07:26,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2023-11-29 03:07:26,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2023-11-29 03:07:26,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2023-11-29 03:07:26,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2023-11-29 03:07:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2023-11-29 03:07:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2023-11-29 03:07:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2023-11-29 03:07:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2023-11-29 03:07:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2023-11-29 03:07:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2023-11-29 03:07:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2023-11-29 03:07:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2023-11-29 03:07:26,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2023-11-29 03:07:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2023-11-29 03:07:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2023-11-29 03:07:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2023-11-29 03:07:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2023-11-29 03:07:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-29 03:07:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-29 03:07:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-29 03:07:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-29 03:07:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-29 03:07:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-29 03:07:26,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-29 03:07:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-29 03:07:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2023-11-29 03:07:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2023-11-29 03:07:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2023-11-29 03:07:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2023-11-29 03:07:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2023-11-29 03:07:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-29 03:07:26,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-29 03:07:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 03:07:26,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 03:07:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 03:07:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-29 03:07:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-29 03:07:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-29 03:07:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-29 03:07:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-29 03:07:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-29 03:07:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-29 03:07:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-29 03:07:26,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-29 03:07:26,820 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2023-11-29 03:07:26,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-29 03:07:26,820 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-29 03:07:26,820 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2023-11-29 03:07:26,820 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2023-11-29 03:07:26,820 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2023-11-29 03:07:26,820 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2023-11-29 03:07:26,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2023-11-29 03:07:26,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2023-11-29 03:07:26,820 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2023-11-29 03:07:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2023-11-29 03:07:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2023-11-29 03:07:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2023-11-29 03:07:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2023-11-29 03:07:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2023-11-29 03:07:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2023-11-29 03:07:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2023-11-29 03:07:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#10 [2023-11-29 03:07:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#11 [2023-11-29 03:07:26,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#12 [2023-11-29 03:07:26,822 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2023-11-29 03:07:26,822 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2023-11-29 03:07:26,822 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2023-11-29 03:07:26,822 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2023-11-29 03:07:26,822 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2023-11-29 03:07:26,822 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2023-11-29 03:07:26,822 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2023-11-29 03:07:26,822 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2023-11-29 03:07:26,822 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2023-11-29 03:07:26,822 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2023-11-29 03:07:26,822 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#10 [2023-11-29 03:07:26,823 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#11 [2023-11-29 03:07:26,823 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#12 [2023-11-29 03:07:26,823 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2023-11-29 03:07:26,823 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2023-11-29 03:07:26,823 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2023-11-29 03:07:26,823 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2023-11-29 03:07:26,823 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-29 03:07:26,823 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-29 03:07:26,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-29 03:07:26,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-29 03:07:26,824 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2023-11-29 03:07:26,824 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2023-11-29 03:07:26,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2023-11-29 03:07:26,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2023-11-29 03:07:26,824 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2023-11-29 03:07:26,824 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2023-11-29 03:07:26,824 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2023-11-29 03:07:26,824 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2023-11-29 03:07:26,824 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2023-11-29 03:07:26,825 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2023-11-29 03:07:26,825 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2023-11-29 03:07:26,825 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2023-11-29 03:07:26,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 03:07:26,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 03:07:26,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 03:07:26,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-29 03:07:26,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-29 03:07:26,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-29 03:07:26,825 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-29 03:07:26,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-29 03:07:26,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-29 03:07:26,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-29 03:07:26,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-29 03:07:26,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-29 03:07:26,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2023-11-29 03:07:26,826 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-29 03:07:26,826 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-29 03:07:26,826 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-29 03:07:26,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-29 03:07:26,827 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2023-11-29 03:07:26,827 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2023-11-29 03:07:26,827 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2023-11-29 03:07:26,827 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2023-11-29 03:07:26,827 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2023-11-29 03:07:26,827 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2023-11-29 03:07:26,827 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-29 03:07:26,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-29 03:07:26,827 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 03:07:26,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 03:07:26,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 03:07:26,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-29 03:07:26,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2023-11-29 03:07:26,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2023-11-29 03:07:26,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2023-11-29 03:07:26,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2023-11-29 03:07:26,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2023-11-29 03:07:26,828 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2023-11-29 03:07:26,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2023-11-29 03:07:26,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2023-11-29 03:07:26,829 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#12 [2023-11-29 03:07:26,829 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 03:07:26,829 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 03:07:26,829 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 03:07:26,829 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-29 03:07:26,829 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2023-11-29 03:07:26,829 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2023-11-29 03:07:26,829 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2023-11-29 03:07:26,830 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2023-11-29 03:07:26,830 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2023-11-29 03:07:26,830 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2023-11-29 03:07:26,830 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2023-11-29 03:07:26,830 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2023-11-29 03:07:26,830 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#12 [2023-11-29 03:07:26,830 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2023-11-29 03:07:26,830 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2023-11-29 03:07:26,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-29 03:07:26,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-29 03:07:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-29 03:07:26,831 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-29 03:07:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure printer_write [2023-11-29 03:07:26,831 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_write [2023-11-29 03:07:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 03:07:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure strrchr [2023-11-29 03:07:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2023-11-29 03:07:26,831 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2023-11-29 03:07:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-29 03:07:26,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-29 03:07:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-29 03:07:26,832 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-29 03:07:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2023-11-29 03:07:26,832 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2023-11-29 03:07:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-11-29 03:07:26,832 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-11-29 03:07:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 03:07:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2023-11-29 03:07:26,832 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2023-11-29 03:07:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2023-11-29 03:07:26,832 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2023-11-29 03:07:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-29 03:07:26,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-29 03:07:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 03:07:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 03:07:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 03:07:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 03:07:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-29 03:07:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-29 03:07:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-29 03:07:26,833 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-29 03:07:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-29 03:07:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-29 03:07:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-29 03:07:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-29 03:07:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-29 03:07:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2023-11-29 03:07:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-29 03:07:26,834 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-29 03:07:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-29 03:07:26,834 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2023-11-29 03:07:26,835 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2023-11-29 03:07:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2023-11-29 03:07:26,835 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2023-11-29 03:07:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 03:07:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 03:07:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 03:07:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-29 03:07:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-29 03:07:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-29 03:07:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-29 03:07:26,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-29 03:07:26,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-29 03:07:26,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-29 03:07:26,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-29 03:07:26,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-29 03:07:26,836 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2023-11-29 03:07:26,836 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2023-11-29 03:07:26,836 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2023-11-29 03:07:26,836 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2023-11-29 03:07:26,836 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2023-11-29 03:07:26,836 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-29 03:07:26,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-29 03:07:26,837 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-29 03:07:26,837 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-29 03:07:26,837 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-29 03:07:26,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-29 03:07:26,837 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2023-11-29 03:07:26,837 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2023-11-29 03:07:26,837 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-29 03:07:26,837 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-29 03:07:26,837 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-11-29 03:07:26,837 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-11-29 03:07:26,838 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2023-11-29 03:07:26,838 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2023-11-29 03:07:26,838 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 03:07:26,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-29 03:07:26,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-29 03:07:26,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-29 03:07:26,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-29 03:07:26,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-29 03:07:26,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-29 03:07:26,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-29 03:07:26,838 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-29 03:07:26,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-29 03:07:26,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2023-11-29 03:07:26,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2023-11-29 03:07:26,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2023-11-29 03:07:26,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2023-11-29 03:07:26,839 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-29 03:07:26,839 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-29 03:07:26,839 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2023-11-29 03:07:26,839 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2023-11-29 03:07:26,839 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-29 03:07:26,840 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-29 03:07:26,840 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-29 03:07:26,840 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-29 03:07:26,840 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-29 03:07:26,840 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-29 03:07:26,840 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2023-11-29 03:07:26,840 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2023-11-29 03:07:26,840 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-29 03:07:26,840 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-29 03:07:26,840 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2023-11-29 03:07:26,840 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2023-11-29 03:07:26,841 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-29 03:07:26,841 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-29 03:07:26,841 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-29 03:07:26,841 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-29 03:07:26,841 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2023-11-29 03:07:26,841 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2023-11-29 03:07:26,841 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2023-11-29 03:07:26,841 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2023-11-29 03:07:26,841 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-29 03:07:26,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-29 03:07:26,841 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-29 03:07:26,842 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-29 03:07:26,842 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2023-11-29 03:07:26,842 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2023-11-29 03:07:26,842 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-11-29 03:07:26,842 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-11-29 03:07:26,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2023-11-29 03:07:26,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2023-11-29 03:07:26,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 03:07:26,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 03:07:26,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 03:07:26,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-29 03:07:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-29 03:07:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-29 03:07:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-29 03:07:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-29 03:07:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-29 03:07:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-29 03:07:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-29 03:07:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-29 03:07:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2023-11-29 03:07:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-11-29 03:07:26,843 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-11-29 03:07:26,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2023-11-29 03:07:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2023-11-29 03:07:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2023-11-29 03:07:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2023-11-29 03:07:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2023-11-29 03:07:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2023-11-29 03:07:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2023-11-29 03:07:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2023-11-29 03:07:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2023-11-29 03:07:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2023-11-29 03:07:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2023-11-29 03:07:26,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2023-11-29 03:07:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2023-11-29 03:07:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2023-11-29 03:07:26,845 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2023-11-29 03:07:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 03:07:26,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 03:07:26,845 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-29 03:07:26,845 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-29 03:07:27,435 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 03:07:27,439 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 03:07:27,732 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-29 03:07:35,641 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 03:07:35,830 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 03:07:35,830 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-29 03:07:35,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:07:35 BoogieIcfgContainer [2023-11-29 03:07:35,831 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 03:07:35,833 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 03:07:35,833 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 03:07:35,835 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 03:07:35,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 03:07:24" (1/3) ... [2023-11-29 03:07:35,836 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b84cb49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:07:35, skipping insertion in model container [2023-11-29 03:07:35,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 03:07:25" (2/3) ... [2023-11-29 03:07:35,837 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b84cb49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 03:07:35, skipping insertion in model container [2023-11-29 03:07:35,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 03:07:35" (3/3) ... [2023-11-29 03:07:35,838 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i [2023-11-29 03:07:35,853 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 03:07:35,854 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 03:07:35,921 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 03:07:35,927 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;@bc3daa1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 03:07:35,927 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 03:07:35,936 INFO L276 IsEmpty]: Start isEmpty. Operand has 1236 states, 800 states have (on average 1.4325) internal successors, (1146), 841 states have internal predecessors, (1146), 364 states have call successors, (364), 71 states have call predecessors, (364), 70 states have return successors, (359), 356 states have call predecessors, (359), 359 states have call successors, (359) [2023-11-29 03:07:35,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-29 03:07:35,953 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:07:35,954 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:07:35,955 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:07:35,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:07:35,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1737453718, now seen corresponding path program 1 times [2023-11-29 03:07:35,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:07:35,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057864229] [2023-11-29 03:07:35,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:07:35,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:07:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:07:38,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:07:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:07:38,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:07:38,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:07:38,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:07:38,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:07:38,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 03:07:38,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:07:38,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:07:38,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:07:38,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:07:38,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:07:38,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 03:07:38,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:07:38,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:07:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:07:38,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:07:38,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:07:38,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 03:07:38,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:07:38,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:07:38,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:07:38,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:07:38,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:07:38,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 03:07:38,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:07:38,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:07:38,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:07:38,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:07:38,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:07:38,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 03:07:38,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:07:38,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:07:38,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:07:38,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:07:38,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:07:38,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 03:07:38,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:07:38,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:07:38,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:07:38,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-29 03:07:38,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:07:38,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:07:38,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:07:38,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-29 03:07:38,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:07:38,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:07:38,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:07:38,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-29 03:07:38,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:07:38,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:07:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:07:38,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-29 03:07:38,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:07:38,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:07:38,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:07:38,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-29 03:07:38,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:07:38,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2023-11-29 03:07:38,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:07:38,284 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2023-11-29 03:07:38,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:07:38,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057864229] [2023-11-29 03:07:38,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057864229] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:07:38,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:07:38,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 03:07:38,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501369809] [2023-11-29 03:07:38,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:07:38,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:07:38,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:07:38,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:07:38,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 03:07:38,319 INFO L87 Difference]: Start difference. First operand has 1236 states, 800 states have (on average 1.4325) internal successors, (1146), 841 states have internal predecessors, (1146), 364 states have call successors, (364), 71 states have call predecessors, (364), 70 states have return successors, (359), 356 states have call predecessors, (359), 359 states have call successors, (359) Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-29 03:07:42,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:07:46,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:07:50,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:07:54,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:07:58,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:08:14,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:08:14,047 INFO L93 Difference]: Finished difference Result 4043 states and 6342 transitions. [2023-11-29 03:08:14,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 03:08:14,050 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 147 [2023-11-29 03:08:14,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:08:14,091 INFO L225 Difference]: With dead ends: 4043 [2023-11-29 03:08:14,091 INFO L226 Difference]: Without dead ends: 2796 [2023-11-29 03:08:14,107 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:08:14,110 INFO L413 NwaCegarLoop]: 438 mSDtfsCounter, 4978 mSDsluCounter, 755 mSDsCounter, 0 mSdLazyCounter, 4241 mSolverCounterSat, 3635 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 33.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5284 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 7881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3635 IncrementalHoareTripleChecker+Valid, 4241 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 34.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:08:14,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5284 Valid, 1193 Invalid, 7881 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3635 Valid, 4241 Invalid, 5 Unknown, 0 Unchecked, 34.9s Time] [2023-11-29 03:08:14,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2796 states. [2023-11-29 03:08:14,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2796 to 2336. [2023-11-29 03:08:14,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 1530 states have (on average 1.4189542483660131) internal successors, (2171), 1586 states have internal predecessors, (2171), 671 states have call successors, (671), 135 states have call predecessors, (671), 134 states have return successors, (658), 652 states have call predecessors, (658), 658 states have call successors, (658) [2023-11-29 03:08:14,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 3500 transitions. [2023-11-29 03:08:14,389 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 3500 transitions. Word has length 147 [2023-11-29 03:08:14,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:08:14,390 INFO L495 AbstractCegarLoop]: Abstraction has 2336 states and 3500 transitions. [2023-11-29 03:08:14,391 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (18), 5 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2023-11-29 03:08:14,391 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 3500 transitions. [2023-11-29 03:08:14,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-11-29 03:08:14,396 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:08:14,396 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:08:14,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 03:08:14,396 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:08:14,397 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:08:14,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1216115025, now seen corresponding path program 1 times [2023-11-29 03:08:14,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:08:14,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472117225] [2023-11-29 03:08:14,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:08:14,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:08:15,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:15,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:08:15,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:15,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:08:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:15,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:08:15,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:15,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 03:08:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:15,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:08:15,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:15,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:08:15,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:15,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 03:08:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:15,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:08:15,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:15,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:08:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:15,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 03:08:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:15,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:08:15,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:15,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:08:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:15,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 03:08:15,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:15,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:08:15,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:15,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:08:15,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:15,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 03:08:15,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:15,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:08:15,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:15,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:08:15,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:15,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 03:08:15,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:15,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:08:15,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:15,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-29 03:08:15,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:15,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:08:15,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:15,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-29 03:08:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:15,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:08:15,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:15,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-29 03:08:15,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:15,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:08:15,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:15,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-29 03:08:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:15,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:08:15,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:15,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-29 03:08:15,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:15,983 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2023-11-29 03:08:15,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:08:15,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472117225] [2023-11-29 03:08:15,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472117225] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:08:15,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:08:15,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:08:15,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233872107] [2023-11-29 03:08:15,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:08:15,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:08:15,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:08:15,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:08:15,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:08:15,987 INFO L87 Difference]: Start difference. First operand 2336 states and 3500 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-29 03:08:20,020 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:08:24,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:08:28,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:08:32,111 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:08:36,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:08:54,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:08:54,772 INFO L93 Difference]: Finished difference Result 6287 states and 9891 transitions. [2023-11-29 03:08:54,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:08:54,773 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 147 [2023-11-29 03:08:54,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:08:54,833 INFO L225 Difference]: With dead ends: 6287 [2023-11-29 03:08:54,833 INFO L226 Difference]: Without dead ends: 6262 [2023-11-29 03:08:54,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:08:54,839 INFO L413 NwaCegarLoop]: 434 mSDtfsCounter, 7135 mSDsluCounter, 970 mSDsCounter, 0 mSdLazyCounter, 5129 mSolverCounterSat, 5001 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7402 SdHoareTripleChecker+Valid, 1404 SdHoareTripleChecker+Invalid, 10135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5001 IncrementalHoareTripleChecker+Valid, 5129 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:08:54,840 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7402 Valid, 1404 Invalid, 10135 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5001 Valid, 5129 Invalid, 5 Unknown, 0 Unchecked, 37.9s Time] [2023-11-29 03:08:54,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6262 states. [2023-11-29 03:08:55,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6262 to 4578. [2023-11-29 03:08:55,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4578 states, 3010 states have (on average 1.418936877076412) internal successors, (4271), 3110 states have internal predecessors, (4271), 1307 states have call successors, (1307), 263 states have call predecessors, (1307), 260 states have return successors, (1295), 1280 states have call predecessors, (1295), 1295 states have call successors, (1295) [2023-11-29 03:08:55,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4578 states to 4578 states and 6873 transitions. [2023-11-29 03:08:55,197 INFO L78 Accepts]: Start accepts. Automaton has 4578 states and 6873 transitions. Word has length 147 [2023-11-29 03:08:55,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:08:55,198 INFO L495 AbstractCegarLoop]: Abstraction has 4578 states and 6873 transitions. [2023-11-29 03:08:55,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-29 03:08:55,198 INFO L276 IsEmpty]: Start isEmpty. Operand 4578 states and 6873 transitions. [2023-11-29 03:08:55,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-11-29 03:08:55,201 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:08:55,202 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:08:55,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 03:08:55,202 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:08:55,202 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:08:55,202 INFO L85 PathProgramCache]: Analyzing trace with hash -956012510, now seen corresponding path program 1 times [2023-11-29 03:08:55,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:08:55,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142077958] [2023-11-29 03:08:55,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:08:55,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:08:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:56,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:08:56,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:56,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:08:56,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:56,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:08:56,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:56,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 03:08:56,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:56,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:08:56,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:56,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:08:56,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:56,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 03:08:56,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:56,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:08:56,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:56,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:08:56,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:56,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 03:08:56,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:56,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:08:56,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:56,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:08:56,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:56,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 03:08:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:56,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:08:56,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:56,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:08:56,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:56,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 03:08:56,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:56,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:08:56,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:56,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:08:56,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:56,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 03:08:56,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:56,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:08:56,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:56,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-29 03:08:56,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:56,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:08:56,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:56,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-29 03:08:56,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:56,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:08:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:56,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-29 03:08:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:56,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:08:56,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:56,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-29 03:08:56,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:56,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:08:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:56,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-29 03:08:56,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:08:56,865 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2023-11-29 03:08:56,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:08:56,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142077958] [2023-11-29 03:08:56,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142077958] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:08:56,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:08:56,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:08:56,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319625618] [2023-11-29 03:08:56,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:08:56,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:08:56,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:08:56,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:08:56,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:08:56,869 INFO L87 Difference]: Start difference. First operand 4578 states and 6873 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-29 03:09:00,912 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:09:04,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:09:09,034 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:09:13,075 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:09:17,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:09:38,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:09:38,783 INFO L93 Difference]: Finished difference Result 16992 states and 26446 transitions. [2023-11-29 03:09:38,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:09:38,784 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 148 [2023-11-29 03:09:38,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:09:38,878 INFO L225 Difference]: With dead ends: 16992 [2023-11-29 03:09:38,878 INFO L226 Difference]: Without dead ends: 12444 [2023-11-29 03:09:38,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:09:38,904 INFO L413 NwaCegarLoop]: 550 mSDtfsCounter, 5746 mSDsluCounter, 1151 mSDsCounter, 0 mSdLazyCounter, 6866 mSolverCounterSat, 4100 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6013 SdHoareTripleChecker+Valid, 1701 SdHoareTripleChecker+Invalid, 10971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4100 IncrementalHoareTripleChecker+Valid, 6866 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.8s IncrementalHoareTripleChecker+Time [2023-11-29 03:09:38,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6013 Valid, 1701 Invalid, 10971 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4100 Valid, 6866 Invalid, 5 Unknown, 0 Unchecked, 40.8s Time] [2023-11-29 03:09:38,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12444 states. [2023-11-29 03:09:39,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12444 to 9077. [2023-11-29 03:09:39,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9077 states, 5979 states have (on average 1.4201371466800468) internal successors, (8491), 6171 states have internal predecessors, (8491), 2585 states have call successors, (2585), 517 states have call predecessors, (2585), 512 states have return successors, (2567), 2540 states have call predecessors, (2567), 2567 states have call successors, (2567) [2023-11-29 03:09:39,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9077 states to 9077 states and 13643 transitions. [2023-11-29 03:09:39,701 INFO L78 Accepts]: Start accepts. Automaton has 9077 states and 13643 transitions. Word has length 148 [2023-11-29 03:09:39,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:09:39,702 INFO L495 AbstractCegarLoop]: Abstraction has 9077 states and 13643 transitions. [2023-11-29 03:09:39,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 3 states have internal predecessors, (38), 3 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2023-11-29 03:09:39,703 INFO L276 IsEmpty]: Start isEmpty. Operand 9077 states and 13643 transitions. [2023-11-29 03:09:39,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2023-11-29 03:09:39,707 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:09:39,707 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:09:39,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 03:09:39,707 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:09:39,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:09:39,708 INFO L85 PathProgramCache]: Analyzing trace with hash -50704955, now seen corresponding path program 1 times [2023-11-29 03:09:39,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:09:39,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701687615] [2023-11-29 03:09:39,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:09:39,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:09:40,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:40,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:09:40,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:40,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:09:40,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:40,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:09:40,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:40,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 03:09:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:40,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:09:40,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:40,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:09:40,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:40,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 03:09:40,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:40,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:09:40,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:40,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:09:40,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:41,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 03:09:41,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:41,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:09:41,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:41,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:09:41,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:41,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 03:09:41,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:41,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:09:41,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:41,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:09:41,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:41,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 03:09:41,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:41,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:09:41,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:41,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:09:41,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:41,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 03:09:41,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:41,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:09:41,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:41,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-29 03:09:41,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:41,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:09:41,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:41,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-29 03:09:41,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:41,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:09:41,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:41,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-29 03:09:41,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:41,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:09:41,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:41,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-29 03:09:41,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:41,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:09:41,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:41,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-29 03:09:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:41,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2023-11-29 03:09:41,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:41,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:09:41,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:41,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2023-11-29 03:09:41,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:09:41,235 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2023-11-29 03:09:41,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:09:41,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701687615] [2023-11-29 03:09:41,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701687615] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:09:41,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:09:41,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:09:41,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275704563] [2023-11-29 03:09:41,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:09:41,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:09:41,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:09:41,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:09:41,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:09:41,237 INFO L87 Difference]: Start difference. First operand 9077 states and 13643 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-29 03:09:45,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:09:49,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:09:53,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:09:57,443 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:10:01,457 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 [] [2023-11-29 03:10:20,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:10:20,363 INFO L93 Difference]: Finished difference Result 33863 states and 52721 transitions. [2023-11-29 03:10:20,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:10:20,363 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 165 [2023-11-29 03:10:20,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:10:20,517 INFO L225 Difference]: With dead ends: 33863 [2023-11-29 03:10:20,517 INFO L226 Difference]: Without dead ends: 24813 [2023-11-29 03:10:20,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2023-11-29 03:10:20,587 INFO L413 NwaCegarLoop]: 454 mSDtfsCounter, 7119 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 5181 mSolverCounterSat, 5075 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 35.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7388 SdHoareTripleChecker+Valid, 1486 SdHoareTripleChecker+Invalid, 10261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5075 IncrementalHoareTripleChecker+Valid, 5181 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 37.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:10:20,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7388 Valid, 1486 Invalid, 10261 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5075 Valid, 5181 Invalid, 5 Unknown, 0 Unchecked, 37.5s Time] [2023-11-29 03:10:20,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24813 states. [2023-11-29 03:10:21,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24813 to 18066. [2023-11-29 03:10:21,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18066 states, 11916 states have (on average 1.420862705605908) internal successors, (16931), 12290 states have internal predecessors, (16931), 5133 states have call successors, (5133), 1024 states have call predecessors, (5133), 1016 states have return successors, (5113), 5055 states have call predecessors, (5113), 5113 states have call successors, (5113) [2023-11-29 03:10:21,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18066 states to 18066 states and 27177 transitions. [2023-11-29 03:10:21,919 INFO L78 Accepts]: Start accepts. Automaton has 18066 states and 27177 transitions. Word has length 165 [2023-11-29 03:10:21,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:10:21,920 INFO L495 AbstractCegarLoop]: Abstraction has 18066 states and 27177 transitions. [2023-11-29 03:10:21,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 3 states have internal predecessors, (49), 3 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2023-11-29 03:10:21,920 INFO L276 IsEmpty]: Start isEmpty. Operand 18066 states and 27177 transitions. [2023-11-29 03:10:21,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2023-11-29 03:10:21,925 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:10:21,925 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:10:21,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 03:10:21,926 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:10:21,926 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:10:21,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1472789241, now seen corresponding path program 1 times [2023-11-29 03:10:21,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:10:21,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313873896] [2023-11-29 03:10:21,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:10:21,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:10:23,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:23,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:10:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:23,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:10:23,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:23,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:10:23,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:23,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 03:10:23,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:23,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:10:23,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:23,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:10:23,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:23,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 03:10:23,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:23,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:10:23,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:23,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:10:23,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:23,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 03:10:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:23,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:10:23,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:23,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:10:23,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:23,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 03:10:23,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:23,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:10:23,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:23,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:10:23,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:23,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 03:10:23,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:23,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:10:23,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:23,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:10:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:23,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 03:10:23,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:24,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:10:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:24,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2023-11-29 03:10:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:24,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:10:24,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:24,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-11-29 03:10:24,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:24,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:10:24,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:24,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2023-11-29 03:10:24,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:24,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:10:24,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:24,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-29 03:10:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:24,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:10:24,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:24,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-29 03:10:24,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:24,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2023-11-29 03:10:24,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:24,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:10:24,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:24,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2023-11-29 03:10:24,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:24,316 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2023-11-29 03:10:24,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:10:24,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313873896] [2023-11-29 03:10:24,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313873896] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:10:24,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901991514] [2023-11-29 03:10:24,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:10:24,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:10:24,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:10:24,323 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:10:24,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 03:10:28,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:28,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 2778 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 03:10:28,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:10:28,214 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2023-11-29 03:10:28,214 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:10:28,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [901991514] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:10:28,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:10:28,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 12 [2023-11-29 03:10:28,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654332090] [2023-11-29 03:10:28,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:10:28,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 03:10:28,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:10:28,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 03:10:28,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:10:28,217 INFO L87 Difference]: Start difference. First operand 18066 states and 27177 transitions. Second operand has 6 states, 4 states have (on average 13.75) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-29 03:10:32,261 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:10:36,335 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:10:40,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:10:44,473 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:10:48,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:10:50,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:10:50,525 INFO L93 Difference]: Finished difference Result 36122 states and 54342 transitions. [2023-11-29 03:10:50,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 03:10:50,526 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 13.75) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 167 [2023-11-29 03:10:50,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:10:50,589 INFO L225 Difference]: With dead ends: 36122 [2023-11-29 03:10:50,589 INFO L226 Difference]: Without dead ends: 18067 [2023-11-29 03:10:50,641 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:10:50,642 INFO L413 NwaCegarLoop]: 1705 mSDtfsCounter, 3 mSDsluCounter, 6806 mSDsCounter, 0 mSdLazyCounter, 590 mSolverCounterSat, 4 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 8511 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 590 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:10:50,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 8511 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 590 Invalid, 5 Unknown, 0 Unchecked, 21.5s Time] [2023-11-29 03:10:50,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18067 states. [2023-11-29 03:10:51,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18067 to 18067. [2023-11-29 03:10:51,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18067 states, 11917 states have (on average 1.4208273894436518) internal successors, (16932), 12291 states have internal predecessors, (16932), 5133 states have call successors, (5133), 1024 states have call predecessors, (5133), 1016 states have return successors, (5113), 5055 states have call predecessors, (5113), 5113 states have call successors, (5113) [2023-11-29 03:10:51,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18067 states to 18067 states and 27178 transitions. [2023-11-29 03:10:51,554 INFO L78 Accepts]: Start accepts. Automaton has 18067 states and 27178 transitions. Word has length 167 [2023-11-29 03:10:51,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:10:51,555 INFO L495 AbstractCegarLoop]: Abstraction has 18067 states and 27178 transitions. [2023-11-29 03:10:51,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 13.75) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (20), 2 states have call predecessors, (20), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2023-11-29 03:10:51,555 INFO L276 IsEmpty]: Start isEmpty. Operand 18067 states and 27178 transitions. [2023-11-29 03:10:51,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-29 03:10:51,559 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:10:51,559 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:10:51,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 03:10:51,760 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:10:51,760 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:10:51,760 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:10:51,761 INFO L85 PathProgramCache]: Analyzing trace with hash -566881474, now seen corresponding path program 1 times [2023-11-29 03:10:51,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:10:51,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568497609] [2023-11-29 03:10:51,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:10:51,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:10:52,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:53,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:10:53,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:53,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:10:53,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:53,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:10:53,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:53,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 03:10:53,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:53,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:10:53,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:53,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:10:53,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:53,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 03:10:53,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:53,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:10:53,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:53,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:10:53,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:53,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 03:10:53,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:53,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:10:53,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:53,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:10:53,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:53,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 03:10:53,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:53,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:10:53,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:53,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:10:53,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:53,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 03:10:53,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:53,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:10:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:53,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:10:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:53,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 03:10:53,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:53,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:10:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:54,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-11-29 03:10:54,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:54,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:10:54,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:54,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-29 03:10:54,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:54,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:10:54,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:54,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-11-29 03:10:54,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:54,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:10:54,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:54,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-11-29 03:10:54,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:54,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:10:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:54,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-29 03:10:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:54,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2023-11-29 03:10:54,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:54,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:10:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:54,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2023-11-29 03:10:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:54,314 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2023-11-29 03:10:54,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:10:54,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568497609] [2023-11-29 03:10:54,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568497609] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:10:54,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1675586298] [2023-11-29 03:10:54,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:10:54,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:10:54,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:10:54,316 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:10:54,319 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 03:10:57,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:10:57,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 2853 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 03:10:57,717 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:10:57,918 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 40 proven. 1 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2023-11-29 03:10:57,918 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:10:58,574 INFO L134 CoverageAnalysis]: Checked inductivity of 285 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2023-11-29 03:10:58,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1675586298] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:10:58,575 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 03:10:58,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 7] total 17 [2023-11-29 03:10:58,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739491591] [2023-11-29 03:10:58,575 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 03:10:58,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 03:10:58,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:10:58,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 03:10:58,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2023-11-29 03:10:58,578 INFO L87 Difference]: Start difference. First operand 18067 states and 27178 transitions. Second operand has 17 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 4 states have call successors, (45), 6 states have call predecessors, (45), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2023-11-29 03:11:02,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:11:06,674 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:11:10,701 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:11:14,770 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:11:18,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:11:22,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:11:26,899 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:11:30,969 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:11:35,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:11:39,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:11:43,096 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:11:47,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:11:51,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:11:55,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:11:59,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:12:03,413 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:12:36,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:12:36,421 INFO L93 Difference]: Finished difference Result 42832 states and 66229 transitions. [2023-11-29 03:12:36,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 03:12:36,421 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 4 states have call successors, (45), 6 states have call predecessors, (45), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 172 [2023-11-29 03:12:36,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:12:36,526 INFO L225 Difference]: With dead ends: 42832 [2023-11-29 03:12:36,526 INFO L226 Difference]: Without dead ends: 24776 [2023-11-29 03:12:36,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=164, Invalid=706, Unknown=0, NotChecked=0, Total=870 [2023-11-29 03:12:36,564 INFO L413 NwaCegarLoop]: 417 mSDtfsCounter, 2556 mSDsluCounter, 2346 mSDsCounter, 0 mSdLazyCounter, 11757 mSolverCounterSat, 1624 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 92.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2741 SdHoareTripleChecker+Valid, 2763 SdHoareTripleChecker+Invalid, 13397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1624 IncrementalHoareTripleChecker+Valid, 11757 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 95.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:12:36,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2741 Valid, 2763 Invalid, 13397 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1624 Valid, 11757 Invalid, 16 Unknown, 0 Unchecked, 95.7s Time] [2023-11-29 03:12:36,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24776 states. [2023-11-29 03:12:37,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24776 to 18072. [2023-11-29 03:12:37,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18072 states, 11920 states have (on average 1.420721476510067) internal successors, (16935), 12294 states have internal predecessors, (16935), 5134 states have call successors, (5134), 1025 states have call predecessors, (5134), 1017 states have return successors, (5114), 5056 states have call predecessors, (5114), 5114 states have call successors, (5114) [2023-11-29 03:12:37,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18072 states to 18072 states and 27183 transitions. [2023-11-29 03:12:37,588 INFO L78 Accepts]: Start accepts. Automaton has 18072 states and 27183 transitions. Word has length 172 [2023-11-29 03:12:37,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:12:37,588 INFO L495 AbstractCegarLoop]: Abstraction has 18072 states and 27183 transitions. [2023-11-29 03:12:37,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 13 states have (on average 6.384615384615385) internal successors, (83), 13 states have internal predecessors, (83), 4 states have call successors, (45), 6 states have call predecessors, (45), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2023-11-29 03:12:37,588 INFO L276 IsEmpty]: Start isEmpty. Operand 18072 states and 27183 transitions. [2023-11-29 03:12:37,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2023-11-29 03:12:37,591 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:12:37,591 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:12:37,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 03:12:37,791 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:12:37,792 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:12:37,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:12:37,792 INFO L85 PathProgramCache]: Analyzing trace with hash 540191769, now seen corresponding path program 2 times [2023-11-29 03:12:37,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:12:37,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074715334] [2023-11-29 03:12:37,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:12:37,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:12:38,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:39,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:12:39,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:39,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:12:39,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:39,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:12:39,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:39,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 03:12:39,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:39,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:12:39,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:39,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:12:39,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:39,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 03:12:39,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:39,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:12:39,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:39,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:12:39,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:39,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 03:12:39,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:39,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:12:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:39,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:12:39,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:39,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 03:12:39,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:39,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:12:39,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:39,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:12:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:39,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 03:12:39,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:39,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:12:39,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:39,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:12:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:39,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 03:12:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:39,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:12:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:40,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-29 03:12:40,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:40,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:12:40,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:40,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-29 03:12:40,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:40,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:12:40,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:40,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-29 03:12:40,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:40,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:12:40,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:40,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-29 03:12:40,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:40,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:12:40,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:40,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-29 03:12:40,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:40,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-11-29 03:12:40,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:40,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:12:40,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:40,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-29 03:12:40,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:12:40,252 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-11-29 03:12:40,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:12:40,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074715334] [2023-11-29 03:12:40,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074715334] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:12:40,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921207502] [2023-11-29 03:12:40,253 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:12:40,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:12:40,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:12:40,255 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:12:40,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 03:12:45,558 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 03:12:45,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:12:45,569 INFO L262 TraceCheckSpWp]: Trace formula consists of 2188 conjuncts, 53 conjunts are in the unsatisfiable core [2023-11-29 03:12:45,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:12:46,646 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2023-11-29 03:12:46,647 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:12:46,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921207502] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:12:46,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:12:46,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [12] total 22 [2023-11-29 03:12:46,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297048634] [2023-11-29 03:12:46,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:12:46,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-29 03:12:46,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:12:46,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-29 03:12:46,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=413, Unknown=0, NotChecked=0, Total=462 [2023-11-29 03:12:46,650 INFO L87 Difference]: Start difference. First operand 18072 states and 27183 transitions. Second operand has 12 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 4 states have call successors, (19), 3 states have call predecessors, (19), 5 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-29 03:12:50,695 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:12:54,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:12:58,767 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:13:02,832 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:13:06,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:13:10,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:13:14,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:13:19,002 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:13:23,069 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:13:27,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:13:39,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:13:39,306 INFO L93 Difference]: Finished difference Result 49664 states and 74751 transitions. [2023-11-29 03:13:39,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 03:13:39,307 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 4 states have call successors, (19), 3 states have call predecessors, (19), 5 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) Word has length 177 [2023-11-29 03:13:39,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:13:39,506 INFO L225 Difference]: With dead ends: 49664 [2023-11-29 03:13:39,506 INFO L226 Difference]: Without dead ends: 31628 [2023-11-29 03:13:39,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=79, Invalid=733, Unknown=0, NotChecked=0, Total=812 [2023-11-29 03:13:39,545 INFO L413 NwaCegarLoop]: 1693 mSDtfsCounter, 1855 mSDsluCounter, 14114 mSDsCounter, 0 mSdLazyCounter, 4131 mSolverCounterSat, 27 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1873 SdHoareTripleChecker+Valid, 15807 SdHoareTripleChecker+Invalid, 4168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 4131 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:13:39,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1873 Valid, 15807 Invalid, 4168 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [27 Valid, 4131 Invalid, 10 Unknown, 0 Unchecked, 50.5s Time] [2023-11-29 03:13:39,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31628 states. [2023-11-29 03:13:41,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31628 to 31446. [2023-11-29 03:13:41,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31446 states, 20749 states have (on average 1.421128729095378) internal successors, (29487), 21406 states have internal predecessors, (29487), 8921 states have call successors, (8921), 1771 states have call predecessors, (8921), 1775 states have return successors, (8957), 8800 states have call predecessors, (8957), 8901 states have call successors, (8957) [2023-11-29 03:13:41,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31446 states to 31446 states and 47365 transitions. [2023-11-29 03:13:41,429 INFO L78 Accepts]: Start accepts. Automaton has 31446 states and 47365 transitions. Word has length 177 [2023-11-29 03:13:41,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:13:41,430 INFO L495 AbstractCegarLoop]: Abstraction has 31446 states and 47365 transitions. [2023-11-29 03:13:41,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 5.777777777777778) internal successors, (52), 9 states have internal predecessors, (52), 4 states have call successors, (19), 3 states have call predecessors, (19), 5 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2023-11-29 03:13:41,430 INFO L276 IsEmpty]: Start isEmpty. Operand 31446 states and 47365 transitions. [2023-11-29 03:13:41,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-29 03:13:41,435 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:13:41,435 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:13:41,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-29 03:13:41,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:13:41,636 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:13:41,637 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:13:41,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1032916003, now seen corresponding path program 1 times [2023-11-29 03:13:41,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:13:41,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758813428] [2023-11-29 03:13:41,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:13:41,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:13:42,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:13:43,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:13:43,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:13:43,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 03:13:43,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:13:43,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:13:43,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 03:13:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:13:43,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:13:43,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 03:13:43,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:13:43,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:13:43,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 03:13:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:13:43,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:13:43,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 03:13:43,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:13:43,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:13:43,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 03:13:43,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:13:43,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-29 03:13:43,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:13:43,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-29 03:13:43,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:13:43,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-29 03:13:43,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:13:43,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-29 03:13:43,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:13:43,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-29 03:13:43,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2023-11-29 03:13:43,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:13:43,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2023-11-29 03:13:43,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:13:43,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2023-11-29 03:13:43,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2023-11-29 03:13:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:13:43,465 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2023-11-29 03:13:43,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:13:43,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758813428] [2023-11-29 03:13:43,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758813428] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:13:43,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:13:43,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 03:13:43,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850398485] [2023-11-29 03:13:43,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:13:43,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 03:13:43,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:13:43,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 03:13:43,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2023-11-29 03:13:43,468 INFO L87 Difference]: Start difference. First operand 31446 states and 47365 transitions. Second operand has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 03:13:47,518 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:13:51,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:13:55,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:13:59,610 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:14:03,667 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:14:07,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:14:38,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:14:38,563 INFO L93 Difference]: Finished difference Result 74567 states and 115409 transitions. [2023-11-29 03:14:38,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:14:38,564 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 192 [2023-11-29 03:14:38,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:14:38,770 INFO L225 Difference]: With dead ends: 74567 [2023-11-29 03:14:38,770 INFO L226 Difference]: Without dead ends: 43157 [2023-11-29 03:14:38,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2023-11-29 03:14:38,908 INFO L413 NwaCegarLoop]: 708 mSDtfsCounter, 4113 mSDsluCounter, 1516 mSDsCounter, 0 mSdLazyCounter, 9686 mSolverCounterSat, 2333 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 49.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4373 SdHoareTripleChecker+Valid, 2224 SdHoareTripleChecker+Invalid, 12025 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2333 IncrementalHoareTripleChecker+Valid, 9686 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:14:38,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4373 Valid, 2224 Invalid, 12025 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2333 Valid, 9686 Invalid, 6 Unknown, 0 Unchecked, 52.1s Time] [2023-11-29 03:14:38,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43157 states. [2023-11-29 03:14:40,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43157 to 31427. [2023-11-29 03:14:40,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31427 states, 20730 states have (on average 1.4207428847081525) internal successors, (29452), 21389 states have internal predecessors, (29452), 8921 states have call successors, (8921), 1771 states have call predecessors, (8921), 1775 states have return successors, (8957), 8798 states have call predecessors, (8957), 8901 states have call successors, (8957) [2023-11-29 03:14:41,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31427 states to 31427 states and 47330 transitions. [2023-11-29 03:14:41,104 INFO L78 Accepts]: Start accepts. Automaton has 31427 states and 47330 transitions. Word has length 192 [2023-11-29 03:14:41,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:14:41,104 INFO L495 AbstractCegarLoop]: Abstraction has 31427 states and 47330 transitions. [2023-11-29 03:14:41,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.571428571428571) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (23), 7 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 03:14:41,105 INFO L276 IsEmpty]: Start isEmpty. Operand 31427 states and 47330 transitions. [2023-11-29 03:14:41,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2023-11-29 03:14:41,109 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:14:41,109 INFO L195 NwaCegarLoop]: trace histogram [10, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:14:41,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 03:14:41,110 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:14:41,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:14:41,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1047096395, now seen corresponding path program 1 times [2023-11-29 03:14:41,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:14:41,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776915984] [2023-11-29 03:14:41,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:14:41,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:14:42,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:14:43,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:14:43,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:14:43,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 03:14:43,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:14:43,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:14:43,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 03:14:43,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:14:43,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:14:43,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 03:14:43,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:14:43,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:14:43,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 03:14:43,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:14:43,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:14:43,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 03:14:43,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:14:43,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:14:43,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 03:14:43,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:14:43,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2023-11-29 03:14:43,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:14:43,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-29 03:14:43,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:14:43,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2023-11-29 03:14:43,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:14:43,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-11-29 03:14:43,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:14:43,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2023-11-29 03:14:43,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 03:14:43,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 03:14:43,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:14:43,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 03:14:43,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2023-11-29 03:14:43,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:14:43,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2023-11-29 03:14:43,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:43,793 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2023-11-29 03:14:43,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:14:43,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776915984] [2023-11-29 03:14:43,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776915984] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:14:43,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082486012] [2023-11-29 03:14:43,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:14:43,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:14:43,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:14:43,796 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:14:43,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 03:14:58,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:14:58,172 INFO L262 TraceCheckSpWp]: Trace formula consists of 2995 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 03:14:58,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:14:58,412 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 108 proven. 3 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2023-11-29 03:14:58,412 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 03:14:59,139 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2023-11-29 03:14:59,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082486012] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 03:14:59,139 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 03:14:59,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 20 [2023-11-29 03:14:59,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454683747] [2023-11-29 03:14:59,140 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 03:14:59,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-29 03:14:59,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:14:59,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-29 03:14:59,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2023-11-29 03:14:59,143 INFO L87 Difference]: Start difference. First operand 31427 states and 47330 transitions. Second operand has 20 states, 16 states have (on average 5.8125) internal successors, (93), 16 states have internal predecessors, (93), 4 states have call successors, (51), 6 states have call predecessors, (51), 6 states have return successors, (37), 4 states have call predecessors, (37), 4 states have call successors, (37) [2023-11-29 03:15:03,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:15:07,272 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:15:11,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:15:15,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:15:19,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:15:23,430 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:15:27,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:15:31,532 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:15:35,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:15:39,570 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:15:43,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:15:47,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:15:51,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:15:55,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:15:59,740 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:16:03,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:16:07,841 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:16:11,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:16:15,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:17:07,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:17:07,440 INFO L93 Difference]: Finished difference Result 74550 states and 115370 transitions. [2023-11-29 03:17:07,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-29 03:17:07,441 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 16 states have (on average 5.8125) internal successors, (93), 16 states have internal predecessors, (93), 4 states have call successors, (51), 6 states have call predecessors, (51), 6 states have return successors, (37), 4 states have call predecessors, (37), 4 states have call successors, (37) Word has length 196 [2023-11-29 03:17:07,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:17:07,668 INFO L225 Difference]: With dead ends: 74550 [2023-11-29 03:17:07,669 INFO L226 Difference]: Without dead ends: 43132 [2023-11-29 03:17:07,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 484 GetRequests, 452 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=185, Invalid=871, Unknown=0, NotChecked=0, Total=1056 [2023-11-29 03:17:07,758 INFO L413 NwaCegarLoop]: 418 mSDtfsCounter, 2375 mSDsluCounter, 3012 mSDsCounter, 0 mSdLazyCounter, 17352 mSolverCounterSat, 1527 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 120.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2560 SdHoareTripleChecker+Valid, 3430 SdHoareTripleChecker+Invalid, 18898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 1527 IncrementalHoareTripleChecker+Valid, 17352 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 124.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:17:07,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2560 Valid, 3430 Invalid, 18898 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [1527 Valid, 17352 Invalid, 19 Unknown, 0 Unchecked, 124.5s Time] [2023-11-29 03:17:07,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43132 states. [2023-11-29 03:17:09,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43132 to 31428. [2023-11-29 03:17:09,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31428 states, 20731 states have (on average 1.420722589358931) internal successors, (29453), 21390 states have internal predecessors, (29453), 8921 states have call successors, (8921), 1771 states have call predecessors, (8921), 1775 states have return successors, (8957), 8798 states have call predecessors, (8957), 8901 states have call successors, (8957) [2023-11-29 03:17:09,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31428 states to 31428 states and 47331 transitions. [2023-11-29 03:17:09,751 INFO L78 Accepts]: Start accepts. Automaton has 31428 states and 47331 transitions. Word has length 196 [2023-11-29 03:17:09,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:17:09,752 INFO L495 AbstractCegarLoop]: Abstraction has 31428 states and 47331 transitions. [2023-11-29 03:17:09,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 16 states have (on average 5.8125) internal successors, (93), 16 states have internal predecessors, (93), 4 states have call successors, (51), 6 states have call predecessors, (51), 6 states have return successors, (37), 4 states have call predecessors, (37), 4 states have call successors, (37) [2023-11-29 03:17:09,752 INFO L276 IsEmpty]: Start isEmpty. Operand 31428 states and 47331 transitions. [2023-11-29 03:17:09,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-11-29 03:17:09,756 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:17:09,756 INFO L195 NwaCegarLoop]: trace histogram [15, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:17:09,802 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 03:17:09,956 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:17:09,957 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:17:09,957 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:17:09,957 INFO L85 PathProgramCache]: Analyzing trace with hash 926527270, now seen corresponding path program 2 times [2023-11-29 03:17:09,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:17:09,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893448008] [2023-11-29 03:17:09,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:17:09,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:17:10,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:11,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:17:11,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:11,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:17:11,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:11,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:17:11,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:11,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 03:17:11,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:11,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:17:11,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:11,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:17:11,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:11,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 03:17:11,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:11,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:17:11,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:11,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:17:11,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:11,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 03:17:11,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:11,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:17:11,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:11,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:17:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:11,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 03:17:11,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:11,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:17:11,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:11,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:17:11,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:11,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 03:17:11,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:11,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:17:11,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:11,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:17:11,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:11,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 03:17:11,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:11,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:17:11,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:12,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-29 03:17:12,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:12,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:17:12,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:12,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-29 03:17:12,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:12,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:17:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:12,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-29 03:17:12,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:12,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:17:12,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:12,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-29 03:17:12,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:12,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:17:12,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:12,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-11-29 03:17:12,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:12,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 03:17:12,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:12,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-29 03:17:12,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:12,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:17:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:12,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 03:17:12,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:12,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2023-11-29 03:17:12,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:12,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:17:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:12,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2023-11-29 03:17:12,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:17:12,360 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 0 proven. 86 refuted. 0 times theorem prover too weak. 402 trivial. 0 not checked. [2023-11-29 03:17:12,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:17:12,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893448008] [2023-11-29 03:17:12,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893448008] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 03:17:12,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214757029] [2023-11-29 03:17:12,361 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 03:17:12,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:17:12,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 03:17:12,362 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 03:17:12,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 03:17:27,066 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-29 03:17:27,066 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 03:17:27,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 2079 conjuncts, 42 conjunts are in the unsatisfiable core [2023-11-29 03:17:27,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 03:17:28,020 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 482 trivial. 0 not checked. [2023-11-29 03:17:28,020 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 03:17:28,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214757029] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:17:28,020 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 03:17:28,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13] total 21 [2023-11-29 03:17:28,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370445580] [2023-11-29 03:17:28,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:17:28,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:17:28,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:17:28,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:17:28,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=372, Unknown=0, NotChecked=0, Total=420 [2023-11-29 03:17:28,022 INFO L87 Difference]: Start difference. First operand 31428 states and 47331 transitions. Second operand has 10 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 4 states have call successors, (23), 3 states have call predecessors, (23), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-29 03:17:32,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:17:36,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:17:40,146 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:17:44,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:17:48,174 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:17:52,264 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:17:56,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:18:00,315 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:18:13,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:18:13,945 INFO L93 Difference]: Finished difference Result 76276 states and 114860 transitions. [2023-11-29 03:18:13,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 03:18:13,946 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 4 states have call successors, (23), 3 states have call predecessors, (23), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 201 [2023-11-29 03:18:13,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:18:14,121 INFO L225 Difference]: With dead ends: 76276 [2023-11-29 03:18:14,121 INFO L226 Difference]: Without dead ends: 44885 [2023-11-29 03:18:14,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2023-11-29 03:18:14,195 INFO L413 NwaCegarLoop]: 1695 mSDtfsCounter, 1842 mSDsluCounter, 10749 mSDsCounter, 0 mSdLazyCounter, 3850 mSolverCounterSat, 25 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 41.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1856 SdHoareTripleChecker+Valid, 12444 SdHoareTripleChecker+Invalid, 3883 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 3850 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.7s IncrementalHoareTripleChecker+Time [2023-11-29 03:18:14,195 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1856 Valid, 12444 Invalid, 3883 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [25 Valid, 3850 Invalid, 8 Unknown, 0 Unchecked, 42.7s Time] [2023-11-29 03:18:14,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44885 states. [2023-11-29 03:18:16,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44885 to 38144. [2023-11-29 03:18:16,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38144 states, 25160 states have (on average 1.4207472178060414) internal successors, (35746), 25962 states have internal predecessors, (35746), 10827 states have call successors, (10827), 2151 states have call predecessors, (10827), 2156 states have return successors, (10875), 10676 states have call predecessors, (10875), 10807 states have call successors, (10875) [2023-11-29 03:18:16,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38144 states to 38144 states and 57448 transitions. [2023-11-29 03:18:16,728 INFO L78 Accepts]: Start accepts. Automaton has 38144 states and 57448 transitions. Word has length 201 [2023-11-29 03:18:16,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:18:16,729 INFO L495 AbstractCegarLoop]: Abstraction has 38144 states and 57448 transitions. [2023-11-29 03:18:16,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 8.142857142857142) internal successors, (57), 8 states have internal predecessors, (57), 4 states have call successors, (23), 3 states have call predecessors, (23), 4 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2023-11-29 03:18:16,729 INFO L276 IsEmpty]: Start isEmpty. Operand 38144 states and 57448 transitions. [2023-11-29 03:18:16,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-11-29 03:18:16,734 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:18:16,734 INFO L195 NwaCegarLoop]: trace histogram [15, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:18:16,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-29 03:18:16,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_555f71ca-8b2d-4179-a331-c08d11631cb4/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 03:18:16,935 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:18:16,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:18:16,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1709371285, now seen corresponding path program 1 times [2023-11-29 03:18:16,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:18:16,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840474037] [2023-11-29 03:18:16,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:18:16,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:18:17,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:18:18,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:18:18,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:18:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 03:18:18,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:18:18,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:18:18,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 03:18:18,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:18:18,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:18:18,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 03:18:18,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:18:18,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:18:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 03:18:18,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:18:18,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:18:18,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 03:18:18,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:18:18,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:18:18,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 03:18:18,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:18:18,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-29 03:18:18,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:18:18,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-29 03:18:18,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:18:18,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-29 03:18:18,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:18:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-29 03:18:18,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:18:18,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-11-29 03:18:18,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-11-29 03:18:18,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:18:18,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-11-29 03:18:18,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:18:18,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-11-29 03:18:18,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:18:18,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2023-11-29 03:18:18,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:18:18,420 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 438 trivial. 0 not checked. [2023-11-29 03:18:18,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:18:18,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840474037] [2023-11-29 03:18:18,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840474037] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:18:18,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:18:18,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 03:18:18,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139849074] [2023-11-29 03:18:18,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:18:18,421 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:18:18,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:18:18,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:18:18,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:18:18,422 INFO L87 Difference]: Start difference. First operand 38144 states and 57448 transitions. Second operand has 8 states, 8 states have (on average 7.875) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 03:18:22,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:18:26,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:18:30,551 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:18:34,580 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:18:38,592 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:18:42,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:18:46,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:19:10,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:19:10,175 INFO L93 Difference]: Finished difference Result 90460 states and 140001 transitions. [2023-11-29 03:19:10,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:19:10,176 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 207 [2023-11-29 03:19:10,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:19:10,383 INFO L225 Difference]: With dead ends: 90460 [2023-11-29 03:19:10,383 INFO L226 Difference]: Without dead ends: 52353 [2023-11-29 03:19:10,470 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2023-11-29 03:19:10,470 INFO L413 NwaCegarLoop]: 422 mSDtfsCounter, 2578 mSDsluCounter, 1332 mSDsCounter, 0 mSdLazyCounter, 7276 mSolverCounterSat, 1572 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 46.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2763 SdHoareTripleChecker+Valid, 1754 SdHoareTripleChecker+Invalid, 8855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1572 IncrementalHoareTripleChecker+Valid, 7276 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 47.9s IncrementalHoareTripleChecker+Time [2023-11-29 03:19:10,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2763 Valid, 1754 Invalid, 8855 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1572 Valid, 7276 Invalid, 7 Unknown, 0 Unchecked, 47.9s Time] [2023-11-29 03:19:10,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52353 states. [2023-11-29 03:19:13,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52353 to 38124. [2023-11-29 03:19:13,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38124 states, 25152 states have (on average 1.4205629770992367) internal successors, (35730), 25954 states have internal predecessors, (35730), 10819 states have call successors, (10819), 2143 states have call predecessors, (10819), 2152 states have return successors, (10867), 10672 states have call predecessors, (10867), 10799 states have call successors, (10867) [2023-11-29 03:19:13,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38124 states to 38124 states and 57416 transitions. [2023-11-29 03:19:13,246 INFO L78 Accepts]: Start accepts. Automaton has 38124 states and 57416 transitions. Word has length 207 [2023-11-29 03:19:13,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:19:13,247 INFO L495 AbstractCegarLoop]: Abstraction has 38124 states and 57416 transitions. [2023-11-29 03:19:13,247 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.875) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (23), 6 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2023-11-29 03:19:13,247 INFO L276 IsEmpty]: Start isEmpty. Operand 38124 states and 57416 transitions. [2023-11-29 03:19:13,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2023-11-29 03:19:13,251 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:19:13,252 INFO L195 NwaCegarLoop]: trace histogram [15, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:19:13,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-29 03:19:13,252 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:19:13,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:19:13,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1749870195, now seen corresponding path program 1 times [2023-11-29 03:19:13,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:19:13,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583211001] [2023-11-29 03:19:13,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:19:13,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:19:14,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:19:14,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:19:14,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:19:14,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 03:19:14,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:19:14,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:19:14,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 03:19:14,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:19:14,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:19:14,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 03:19:14,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:19:14,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:19:14,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 03:19:14,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:19:14,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:19:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 03:19:14,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:19:14,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:19:14,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 03:19:14,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:19:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-29 03:19:14,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:19:14,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-29 03:19:14,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:19:14,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-29 03:19:14,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:19:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-29 03:19:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:19:14,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-11-29 03:19:14,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-11-29 03:19:14,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:19:14,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-11-29 03:19:14,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:19:14,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-11-29 03:19:14,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:19:14,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:19:14,771 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 438 trivial. 0 not checked. [2023-11-29 03:19:14,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:19:14,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583211001] [2023-11-29 03:19:14,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583211001] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:19:14,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:19:14,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 03:19:14,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503370690] [2023-11-29 03:19:14,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:19:14,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 03:19:14,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:19:14,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 03:19:14,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-11-29 03:19:14,773 INFO L87 Difference]: Start difference. First operand 38124 states and 57416 transitions. Second operand has 8 states, 8 states have (on average 8.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-29 03:19:18,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:19:22,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:19:26,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:19:30,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:19:34,965 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:19:39,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:19:43,022 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 [] [2023-11-29 03:20:07,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:20:07,686 INFO L93 Difference]: Finished difference Result 72154 states and 111031 transitions. [2023-11-29 03:20:07,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-11-29 03:20:07,687 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 205 [2023-11-29 03:20:07,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:20:07,816 INFO L225 Difference]: With dead ends: 72154 [2023-11-29 03:20:07,816 INFO L226 Difference]: Without dead ends: 34067 [2023-11-29 03:20:07,880 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-29 03:20:07,881 INFO L413 NwaCegarLoop]: 419 mSDtfsCounter, 2231 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 8060 mSolverCounterSat, 1102 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2422 SdHoareTripleChecker+Valid, 1966 SdHoareTripleChecker+Invalid, 9169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1102 IncrementalHoareTripleChecker+Valid, 8060 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 50.1s IncrementalHoareTripleChecker+Time [2023-11-29 03:20:07,881 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2422 Valid, 1966 Invalid, 9169 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1102 Valid, 8060 Invalid, 7 Unknown, 0 Unchecked, 50.1s Time] [2023-11-29 03:20:07,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34067 states. [2023-11-29 03:20:09,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34067 to 24865. [2023-11-29 03:20:09,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24865 states, 16398 states have (on average 1.4180997682644225) internal successors, (23254), 16922 states have internal predecessors, (23254), 7044 states have call successors, (7044), 1416 states have call predecessors, (7044), 1422 states have return successors, (7068), 6944 states have call predecessors, (7068), 7024 states have call successors, (7068) [2023-11-29 03:20:09,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24865 states to 24865 states and 37366 transitions. [2023-11-29 03:20:09,753 INFO L78 Accepts]: Start accepts. Automaton has 24865 states and 37366 transitions. Word has length 205 [2023-11-29 03:20:09,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:20:09,753 INFO L495 AbstractCegarLoop]: Abstraction has 24865 states and 37366 transitions. [2023-11-29 03:20:09,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-29 03:20:09,753 INFO L276 IsEmpty]: Start isEmpty. Operand 24865 states and 37366 transitions. [2023-11-29 03:20:09,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-11-29 03:20:09,758 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:20:09,758 INFO L195 NwaCegarLoop]: trace histogram [15, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:20:09,758 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 03:20:09,758 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:20:09,758 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:20:09,758 INFO L85 PathProgramCache]: Analyzing trace with hash 58246203, now seen corresponding path program 1 times [2023-11-29 03:20:09,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:20:09,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713769696] [2023-11-29 03:20:09,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:20:09,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 03:20:10,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:20:11,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:20:11,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:20:11,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2023-11-29 03:20:11,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:20:11,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:20:11,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-11-29 03:20:11,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:20:11,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:20:11,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-11-29 03:20:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:20:11,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:20:11,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2023-11-29 03:20:11,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:20:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:20:11,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 03:20:11,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:20:11,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-29 03:20:11,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2023-11-29 03:20:11,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:20:11,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-11-29 03:20:11,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:20:11,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2023-11-29 03:20:11,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:20:11,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2023-11-29 03:20:11,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:20:11,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-11-29 03:20:11,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:20:11,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2023-11-29 03:20:11,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2023-11-29 03:20:11,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:20:11,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2023-11-29 03:20:11,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:20:11,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2023-11-29 03:20:11,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-29 03:20:11,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 03:20:11,339 INFO L134 CoverageAnalysis]: Checked inductivity of 438 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 438 trivial. 0 not checked. [2023-11-29 03:20:11,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 03:20:11,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713769696] [2023-11-29 03:20:11,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713769696] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 03:20:11,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 03:20:11,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-29 03:20:11,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955291855] [2023-11-29 03:20:11,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 03:20:11,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 03:20:11,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 03:20:11,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 03:20:11,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-29 03:20:11,342 INFO L87 Difference]: Start difference. First operand 24865 states and 37366 transitions. Second operand has 10 states, 10 states have (on average 6.6) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-29 03:20:15,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:20:19,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:20:23,456 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:20:27,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:20:31,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:20:35,565 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:20:39,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:20:43,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-29 03:21:13,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 03:21:13,243 INFO L93 Difference]: Finished difference Result 44713 states and 68536 transitions. [2023-11-29 03:21:13,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-29 03:21:13,243 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 207 [2023-11-29 03:21:13,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 03:21:13,314 INFO L225 Difference]: With dead ends: 44713 [2023-11-29 03:21:13,315 INFO L226 Difference]: Without dead ends: 19885 [2023-11-29 03:21:13,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2023-11-29 03:21:13,361 INFO L413 NwaCegarLoop]: 656 mSDtfsCounter, 3936 mSDsluCounter, 2711 mSDsCounter, 0 mSdLazyCounter, 9687 mSolverCounterSat, 2642 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 57.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4038 SdHoareTripleChecker+Valid, 3367 SdHoareTripleChecker+Invalid, 12337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2642 IncrementalHoareTripleChecker+Valid, 9687 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 59.5s IncrementalHoareTripleChecker+Time [2023-11-29 03:21:13,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4038 Valid, 3367 Invalid, 12337 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2642 Valid, 9687 Invalid, 8 Unknown, 0 Unchecked, 59.5s Time] [2023-11-29 03:21:13,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19885 states. [2023-11-29 03:21:14,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19885 to 14107. [2023-11-29 03:21:14,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14107 states, 9283 states have (on average 1.408596358935689) internal successors, (13076), 9587 states have internal predecessors, (13076), 3964 states have call successors, (3964), 853 states have call predecessors, (3964), 859 states have return successors, (3958), 3894 states have call predecessors, (3958), 3944 states have call successors, (3958) [2023-11-29 03:21:14,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14107 states to 14107 states and 20998 transitions. [2023-11-29 03:21:14,534 INFO L78 Accepts]: Start accepts. Automaton has 14107 states and 20998 transitions. Word has length 207 [2023-11-29 03:21:14,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 03:21:14,535 INFO L495 AbstractCegarLoop]: Abstraction has 14107 states and 20998 transitions. [2023-11-29 03:21:14,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.6) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (21), 6 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2023-11-29 03:21:14,535 INFO L276 IsEmpty]: Start isEmpty. Operand 14107 states and 20998 transitions. [2023-11-29 03:21:14,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2023-11-29 03:21:14,541 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 03:21:14,541 INFO L195 NwaCegarLoop]: trace histogram [15, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 03:21:14,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-11-29 03:21:14,542 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 03:21:14,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 03:21:14,542 INFO L85 PathProgramCache]: Analyzing trace with hash 434051883, now seen corresponding path program 1 times [2023-11-29 03:21:14,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 03:21:14,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111331486] [2023-11-29 03:21:14,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 03:21:14,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms