./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_166282a4-6f62-4172-abde-650ae11667d3/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_166282a4-6f62-4172-abde-650ae11667d3/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_166282a4-6f62-4172-abde-650ae11667d3/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_166282a4-6f62-4172-abde-650ae11667d3/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_166282a4-6f62-4172-abde-650ae11667d3/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_166282a4-6f62-4172-abde-650ae11667d3/bin/uautomizer-verify-LYvppIcaGC --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 d8753c57388e5055354b3fbc6056201b4b60a43a04993bc3e2112ce6b572c942 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 02:00:20,274 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 02:00:20,369 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_166282a4-6f62-4172-abde-650ae11667d3/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-24 02:00:20,376 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 02:00:20,376 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 02:00:20,401 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 02:00:20,402 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 02:00:20,402 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 02:00:20,403 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 02:00:20,403 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 02:00:20,403 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 02:00:20,403 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 02:00:20,403 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 02:00:20,403 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 02:00:20,404 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 02:00:20,404 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 02:00:20,404 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 02:00:20,404 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 02:00:20,404 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 02:00:20,404 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 02:00:20,404 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 02:00:20,404 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 02:00:20,404 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 02:00:20,405 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 02:00:20,405 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 02:00:20,405 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 02:00:20,409 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:00:20,409 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:00:20,409 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:00:20,409 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:00:20,410 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 02:00:20,410 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 02:00:20,410 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 02:00:20,410 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 02:00:20,410 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:00:20,410 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 02:00:20,410 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 02:00:20,410 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 02:00:20,410 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 02:00:20,411 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 02:00:20,411 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 02:00:20,411 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 02:00:20,411 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 02:00:20,411 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 02:00:20,411 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 02:00:20,411 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_166282a4-6f62-4172-abde-650ae11667d3/bin/uautomizer-verify-LYvppIcaGC 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 -> d8753c57388e5055354b3fbc6056201b4b60a43a04993bc3e2112ce6b572c942 [2024-11-24 02:00:20,802 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 02:00:20,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 02:00:20,817 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 02:00:20,818 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 02:00:20,819 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 02:00:20,822 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_166282a4-6f62-4172-abde-650ae11667d3/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i [2024-11-24 02:00:24,220 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_166282a4-6f62-4172-abde-650ae11667d3/bin/uautomizer-verify-LYvppIcaGC/data/35af2fca7/0e53d0550cd9477d8b9534eb89147d9d/FLAGe9d4ae3d5 [2024-11-24 02:00:24,856 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 02:00:24,857 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_166282a4-6f62-4172-abde-650ae11667d3/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i [2024-11-24 02:00:24,908 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_166282a4-6f62-4172-abde-650ae11667d3/bin/uautomizer-verify-LYvppIcaGC/data/35af2fca7/0e53d0550cd9477d8b9534eb89147d9d/FLAGe9d4ae3d5 [2024-11-24 02:00:24,927 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_166282a4-6f62-4172-abde-650ae11667d3/bin/uautomizer-verify-LYvppIcaGC/data/35af2fca7/0e53d0550cd9477d8b9534eb89147d9d [2024-11-24 02:00:24,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 02:00:24,933 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 02:00:24,934 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 02:00:24,935 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 02:00:24,941 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 02:00:24,942 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:00:24" (1/1) ... [2024-11-24 02:00:24,943 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f9bb4a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:24, skipping insertion in model container [2024-11-24 02:00:24,944 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 02:00:24" (1/1) ... [2024-11-24 02:00:25,081 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 02:00:26,475 WARN L250 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_166282a4-6f62-4172-abde-650ae11667d3/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i[143316,143329] [2024-11-24 02:00:26,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:00:26,554 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 02:00:26,763 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3278] [2024-11-24 02:00:26,766 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3281] [2024-11-24 02:00:26,766 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3284] [2024-11-24 02:00:26,766 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3287] [2024-11-24 02:00:26,767 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; incl %0": "+m" (v->counter)); [3300] [2024-11-24 02:00:26,975 WARN L250 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_166282a4-6f62-4172-abde-650ae11667d3/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i[143316,143329] [2024-11-24 02:00:26,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 02:00:27,080 INFO L204 MainTranslator]: Completed translation [2024-11-24 02:00:27,081 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:27 WrapperNode [2024-11-24 02:00:27,081 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 02:00:27,083 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 02:00:27,083 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 02:00:27,084 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 02:00:27,093 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:27" (1/1) ... [2024-11-24 02:00:27,171 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:27" (1/1) ... [2024-11-24 02:00:27,309 INFO L138 Inliner]: procedures = 141, calls = 665, calls flagged for inlining = 63, calls inlined = 60, statements flattened = 2215 [2024-11-24 02:00:27,310 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 02:00:27,311 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 02:00:27,311 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 02:00:27,311 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 02:00:27,333 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:27" (1/1) ... [2024-11-24 02:00:27,333 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:27" (1/1) ... [2024-11-24 02:00:27,366 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:27" (1/1) ... [2024-11-24 02:00:27,798 INFO L175 MemorySlicer]: Split 339 memory accesses to 8 slices as follows [2, 9, 2, 292, 3, 6, 24, 1]. 86 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 0, 0, 0, 0, 6, 0, 0]. The 169 writes are split as follows [0, 2, 2, 138, 3, 0, 24, 0]. [2024-11-24 02:00:27,798 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:27" (1/1) ... [2024-11-24 02:00:27,799 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:27" (1/1) ... [2024-11-24 02:00:27,895 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:27" (1/1) ... [2024-11-24 02:00:27,899 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:27" (1/1) ... [2024-11-24 02:00:27,913 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:27" (1/1) ... [2024-11-24 02:00:27,952 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:27" (1/1) ... [2024-11-24 02:00:27,971 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:27" (1/1) ... [2024-11-24 02:00:27,996 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 02:00:27,997 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 02:00:27,998 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 02:00:27,998 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 02:00:27,999 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:27" (1/1) ... [2024-11-24 02:00:28,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 02:00:28,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_166282a4-6f62-4172-abde-650ae11667d3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:00:28,059 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_166282a4-6f62-4172-abde-650ae11667d3/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 02:00:28,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_166282a4-6f62-4172-abde-650ae11667d3/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 02:00:28,101 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-11-24 02:00:28,101 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-11-24 02:00:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-24 02:00:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-24 02:00:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-24 02:00:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-24 02:00:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-24 02:00:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-24 02:00:28,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-24 02:00:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-24 02:00:28,103 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2024-11-24 02:00:28,103 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2024-11-24 02:00:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-24 02:00:28,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-24 02:00:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-24 02:00:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-24 02:00:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-24 02:00:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-24 02:00:28,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-24 02:00:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-24 02:00:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-24 02:00:28,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-24 02:00:28,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-24 02:00:28,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-24 02:00:28,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-24 02:00:28,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-24 02:00:28,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-24 02:00:28,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-24 02:00:28,108 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-24 02:00:28,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-24 02:00:28,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 02:00:28,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 02:00:28,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 02:00:28,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 02:00:28,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 02:00:28,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-24 02:00:28,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-24 02:00:28,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-24 02:00:28,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-24 02:00:28,113 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-24 02:00:28,113 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2024-11-24 02:00:28,113 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2024-11-24 02:00:28,114 INFO L130 BoogieDeclarations]: Found specification of procedure retry_transmit [2024-11-24 02:00:28,114 INFO L138 BoogieDeclarations]: Found implementation of procedure retry_transmit [2024-11-24 02:00:28,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-24 02:00:28,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-24 02:00:28,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-24 02:00:28,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-24 02:00:28,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-24 02:00:28,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-24 02:00:28,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-24 02:00:28,114 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-11-24 02:00:28,114 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-24 02:00:28,114 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-24 02:00:28,114 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-24 02:00:28,114 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-24 02:00:28,114 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-24 02:00:28,115 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-24 02:00:28,115 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-24 02:00:28,115 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-11-24 02:00:28,115 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2024-11-24 02:00:28,115 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2024-11-24 02:00:28,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2024-11-24 02:00:28,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2024-11-24 02:00:28,115 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-24 02:00:28,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-24 02:00:28,115 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_close [2024-11-24 02:00:28,115 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_close [2024-11-24 02:00:28,115 INFO L130 BoogieDeclarations]: Found specification of procedure remove_msg [2024-11-24 02:00:28,115 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_msg [2024-11-24 02:00:28,115 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2024-11-24 02:00:28,116 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2024-11-24 02:00:28,116 INFO L130 BoogieDeclarations]: Found specification of procedure task_pid [2024-11-24 02:00:28,116 INFO L138 BoogieDeclarations]: Found implementation of procedure task_pid [2024-11-24 02:00:28,116 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-24 02:00:28,116 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-24 02:00:28,116 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unlock [2024-11-24 02:00:28,116 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unlock [2024-11-24 02:00:28,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 02:00:28,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 02:00:28,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 02:00:28,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 02:00:28,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 02:00:28,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-24 02:00:28,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-24 02:00:28,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-24 02:00:28,117 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2024-11-24 02:00:28,117 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2024-11-24 02:00:28,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-24 02:00:28,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-24 02:00:28,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-24 02:00:28,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-24 02:00:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 02:00:28,122 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 02:00:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure add_msg [2024-11-24 02:00:28,122 INFO L138 BoogieDeclarations]: Found implementation of procedure add_msg [2024-11-24 02:00:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 02:00:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2024-11-24 02:00:28,122 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2024-11-24 02:00:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-24 02:00:28,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-24 02:00:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-24 02:00:28,122 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-24 02:00:28,122 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_poll [2024-11-24 02:00:28,123 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_poll [2024-11-24 02:00:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 02:00:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2024-11-24 02:00:28,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2024-11-24 02:00:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 02:00:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-24 02:00:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-24 02:00:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-24 02:00:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-24 02:00:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-24 02:00:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-24 02:00:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-24 02:00:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-24 02:00:28,123 INFO L130 BoogieDeclarations]: Found specification of procedure findClient [2024-11-24 02:00:28,123 INFO L138 BoogieDeclarations]: Found implementation of procedure findClient [2024-11-24 02:00:28,124 INFO L130 BoogieDeclarations]: Found specification of procedure put_char [2024-11-24 02:00:28,124 INFO L138 BoogieDeclarations]: Found implementation of procedure put_char [2024-11-24 02:00:28,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-24 02:00:28,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-24 02:00:28,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-24 02:00:28,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-24 02:00:28,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-24 02:00:28,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-24 02:00:28,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-24 02:00:28,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-24 02:00:28,124 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2024-11-24 02:00:28,124 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2024-11-24 02:00:28,124 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2024-11-24 02:00:28,124 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2024-11-24 02:00:28,124 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2024-11-24 02:00:28,125 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2024-11-24 02:00:28,125 INFO L130 BoogieDeclarations]: Found specification of procedure remove_client_block [2024-11-24 02:00:28,125 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_client_block [2024-11-24 02:00:28,125 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-24 02:00:28,125 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-24 02:00:28,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 02:00:28,129 INFO L130 BoogieDeclarations]: Found specification of procedure on_receive_block [2024-11-24 02:00:28,129 INFO L138 BoogieDeclarations]: Found implementation of procedure on_receive_block [2024-11-24 02:00:28,129 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-24 02:00:28,129 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-24 02:00:28,129 INFO L130 BoogieDeclarations]: Found specification of procedure flush [2024-11-24 02:00:28,129 INFO L138 BoogieDeclarations]: Found implementation of procedure flush [2024-11-24 02:00:28,130 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_set_termios [2024-11-24 02:00:28,130 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_set_termios [2024-11-24 02:00:28,130 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-24 02:00:28,130 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-24 02:00:28,130 INFO L130 BoogieDeclarations]: Found specification of procedure r3964_ioctl [2024-11-24 02:00:28,130 INFO L138 BoogieDeclarations]: Found implementation of procedure r3964_ioctl [2024-11-24 02:00:28,130 INFO L130 BoogieDeclarations]: Found specification of procedure remove_from_tx_queue [2024-11-24 02:00:28,130 INFO L138 BoogieDeclarations]: Found implementation of procedure remove_from_tx_queue [2024-11-24 02:00:28,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 02:00:28,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 02:00:28,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 02:00:28,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 02:00:28,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 02:00:28,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 02:00:28,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-24 02:00:28,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-24 02:00:28,130 INFO L130 BoogieDeclarations]: Found specification of procedure tty_lock [2024-11-24 02:00:28,131 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_lock [2024-11-24 02:00:28,131 INFO L130 BoogieDeclarations]: Found specification of procedure trigger_transmit [2024-11-24 02:00:28,131 INFO L138 BoogieDeclarations]: Found implementation of procedure trigger_transmit [2024-11-24 02:00:28,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-24 02:00:28,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-24 02:00:28,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-24 02:00:28,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-24 02:00:28,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-24 02:00:28,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-24 02:00:28,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-24 02:00:28,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-24 02:00:28,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 02:00:28,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 02:00:28,871 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 02:00:28,875 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 02:00:29,063 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-24 02:00:40,575 INFO L? ?]: Removed 1031 outVars from TransFormulas that were not future-live. [2024-11-24 02:00:40,576 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 02:00:40,614 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 02:00:40,614 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 02:00:40,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:00:40 BoogieIcfgContainer [2024-11-24 02:00:40,615 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 02:00:40,617 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 02:00:40,617 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 02:00:40,622 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 02:00:40,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 02:00:24" (1/3) ... [2024-11-24 02:00:40,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d602de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:00:40, skipping insertion in model container [2024-11-24 02:00:40,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 02:00:27" (2/3) ... [2024-11-24 02:00:40,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54d602de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 02:00:40, skipping insertion in model container [2024-11-24 02:00:40,623 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 02:00:40" (3/3) ... [2024-11-24 02:00:40,624 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i [2024-11-24 02:00:40,646 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 02:00:40,649 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--tty--n_r3964.ko-entry_point.cil.out.i that has 50 procedures, 875 locations, 1 initial locations, 18 loop locations, and 1 error locations. [2024-11-24 02:00:40,747 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 02:00:40,764 INFO L333 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, 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;@75789274, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 02:00:40,765 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 02:00:40,775 INFO L276 IsEmpty]: Start isEmpty. Operand has 839 states, 604 states have (on average 1.4072847682119205) internal successors, (850), 640 states have internal predecessors, (850), 192 states have call successors, (192), 42 states have call predecessors, (192), 41 states have return successors, (188), 178 states have call predecessors, (188), 188 states have call successors, (188) [2024-11-24 02:00:40,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-24 02:00:40,799 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:40,801 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:40,801 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:40,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:40,807 INFO L85 PathProgramCache]: Analyzing trace with hash -205435136, now seen corresponding path program 1 times [2024-11-24 02:00:40,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:40,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42568805] [2024-11-24 02:00:40,816 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:40,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:41,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:41,652 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2024-11-24 02:00:41,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:41,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42568805] [2024-11-24 02:00:41,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42568805] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 02:00:41,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021765864] [2024-11-24 02:00:41,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:41,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 02:00:41,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_166282a4-6f62-4172-abde-650ae11667d3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 02:00:41,659 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_166282a4-6f62-4172-abde-650ae11667d3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 02:00:41,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_166282a4-6f62-4172-abde-650ae11667d3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 02:00:42,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:42,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 1229 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 02:00:42,547 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 02:00:42,588 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2024-11-24 02:00:42,588 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 02:00:42,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021765864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:42,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 02:00:42,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 02:00:42,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865111075] [2024-11-24 02:00:42,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:42,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 02:00:42,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:42,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 02:00:42,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 02:00:42,626 INFO L87 Difference]: Start difference. First operand has 839 states, 604 states have (on average 1.4072847682119205) internal successors, (850), 640 states have internal predecessors, (850), 192 states have call successors, (192), 42 states have call predecessors, (192), 41 states have return successors, (188), 178 states have call predecessors, (188), 188 states have call successors, (188) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-24 02:00:42,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:42,791 INFO L93 Difference]: Finished difference Result 1673 states and 2497 transitions. [2024-11-24 02:00:42,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 02:00:42,794 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 174 [2024-11-24 02:00:42,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:42,823 INFO L225 Difference]: With dead ends: 1673 [2024-11-24 02:00:42,823 INFO L226 Difference]: Without dead ends: 822 [2024-11-24 02:00:42,837 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 02:00:42,843 INFO L435 NwaCegarLoop]: 1219 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1219 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:42,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1219 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 02:00:42,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2024-11-24 02:00:42,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 822. [2024-11-24 02:00:42,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 822 states, 594 states have (on average 1.387205387205387) internal successors, (824), 624 states have internal predecessors, (824), 187 states have call successors, (187), 41 states have call predecessors, (187), 40 states have return successors, (186), 176 states have call predecessors, (186), 186 states have call successors, (186) [2024-11-24 02:00:43,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 822 states to 822 states and 1197 transitions. [2024-11-24 02:00:43,013 INFO L78 Accepts]: Start accepts. Automaton has 822 states and 1197 transitions. Word has length 174 [2024-11-24 02:00:43,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:43,017 INFO L471 AbstractCegarLoop]: Abstraction has 822 states and 1197 transitions. [2024-11-24 02:00:43,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-24 02:00:43,017 INFO L276 IsEmpty]: Start isEmpty. Operand 822 states and 1197 transitions. [2024-11-24 02:00:43,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-24 02:00:43,024 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:43,024 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:43,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_166282a4-6f62-4172-abde-650ae11667d3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 02:00:43,225 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_166282a4-6f62-4172-abde-650ae11667d3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-24 02:00:43,225 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:43,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:43,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1866130932, now seen corresponding path program 1 times [2024-11-24 02:00:43,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:43,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510914612] [2024-11-24 02:00:43,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:43,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:43,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:43,869 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2024-11-24 02:00:43,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:43,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510914612] [2024-11-24 02:00:43,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510914612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:43,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:43,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 02:00:43,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449811736] [2024-11-24 02:00:43,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:43,875 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 02:00:43,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:43,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 02:00:43,879 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:00:43,879 INFO L87 Difference]: Start difference. First operand 822 states and 1197 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 02:00:44,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:44,198 INFO L93 Difference]: Finished difference Result 1912 states and 2769 transitions. [2024-11-24 02:00:44,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 02:00:44,200 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 174 [2024-11-24 02:00:44,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:44,219 INFO L225 Difference]: With dead ends: 1912 [2024-11-24 02:00:44,219 INFO L226 Difference]: Without dead ends: 1129 [2024-11-24 02:00:44,223 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 02:00:44,225 INFO L435 NwaCegarLoop]: 1257 mSDtfsCounter, 475 mSDsluCounter, 1107 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 2364 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:44,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 2364 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 02:00:44,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1129 states. [2024-11-24 02:00:44,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1129 to 1126. [2024-11-24 02:00:44,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1126 states, 806 states have (on average 1.3870967741935485) internal successors, (1118), 853 states have internal predecessors, (1118), 253 states have call successors, (253), 67 states have call predecessors, (253), 66 states have return successors, (252), 237 states have call predecessors, (252), 252 states have call successors, (252) [2024-11-24 02:00:44,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1126 states to 1126 states and 1623 transitions. [2024-11-24 02:00:44,352 INFO L78 Accepts]: Start accepts. Automaton has 1126 states and 1623 transitions. Word has length 174 [2024-11-24 02:00:44,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:44,354 INFO L471 AbstractCegarLoop]: Abstraction has 1126 states and 1623 transitions. [2024-11-24 02:00:44,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 02:00:44,354 INFO L276 IsEmpty]: Start isEmpty. Operand 1126 states and 1623 transitions. [2024-11-24 02:00:44,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-24 02:00:44,359 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:44,359 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:44,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 02:00:44,360 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:44,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:44,361 INFO L85 PathProgramCache]: Analyzing trace with hash -1926230435, now seen corresponding path program 1 times [2024-11-24 02:00:44,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:44,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916644268] [2024-11-24 02:00:44,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:44,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:44,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:45,030 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2024-11-24 02:00:45,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:45,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916644268] [2024-11-24 02:00:45,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916644268] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:45,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:45,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:00:45,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27170521] [2024-11-24 02:00:45,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:45,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:00:45,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:45,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:00:45,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:00:45,033 INFO L87 Difference]: Start difference. First operand 1126 states and 1623 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 02:00:48,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.97s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:00:51,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:51,393 INFO L93 Difference]: Finished difference Result 5408 states and 8178 transitions. [2024-11-24 02:00:51,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:00:51,394 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 184 [2024-11-24 02:00:51,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:51,454 INFO L225 Difference]: With dead ends: 5408 [2024-11-24 02:00:51,454 INFO L226 Difference]: Without dead ends: 4331 [2024-11-24 02:00:51,465 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:00:51,467 INFO L435 NwaCegarLoop]: 1377 mSDtfsCounter, 4197 mSDsluCounter, 3861 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 314 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4197 SdHoareTripleChecker+Valid, 5238 SdHoareTripleChecker+Invalid, 1092 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 314 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:51,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4197 Valid, 5238 Invalid, 1092 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [314 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 5.9s Time] [2024-11-24 02:00:51,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4331 states. [2024-11-24 02:00:51,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4331 to 4315. [2024-11-24 02:00:51,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4315 states, 3114 states have (on average 1.390815671162492) internal successors, (4331), 3291 states have internal predecessors, (4331), 949 states have call successors, (949), 254 states have call predecessors, (949), 251 states have return successors, (1151), 891 states have call predecessors, (1151), 948 states have call successors, (1151) [2024-11-24 02:00:51,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4315 states to 4315 states and 6431 transitions. [2024-11-24 02:00:51,880 INFO L78 Accepts]: Start accepts. Automaton has 4315 states and 6431 transitions. Word has length 184 [2024-11-24 02:00:51,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:00:51,882 INFO L471 AbstractCegarLoop]: Abstraction has 4315 states and 6431 transitions. [2024-11-24 02:00:51,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 02:00:51,883 INFO L276 IsEmpty]: Start isEmpty. Operand 4315 states and 6431 transitions. [2024-11-24 02:00:51,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-24 02:00:51,886 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:00:51,886 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:00:51,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 02:00:51,886 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:00:51,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:00:51,888 INFO L85 PathProgramCache]: Analyzing trace with hash 474115636, now seen corresponding path program 1 times [2024-11-24 02:00:51,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:00:51,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571254778] [2024-11-24 02:00:51,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:00:51,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:00:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:00:52,425 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2024-11-24 02:00:52,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:00:52,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571254778] [2024-11-24 02:00:52,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571254778] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:00:52,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:00:52,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:00:52,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132107320] [2024-11-24 02:00:52,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:00:52,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:00:52,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:00:52,427 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:00:52,427 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:00:52,427 INFO L87 Difference]: Start difference. First operand 4315 states and 6431 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 02:00:54,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 02:00:58,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:00:58,592 INFO L93 Difference]: Finished difference Result 21331 states and 33815 transitions. [2024-11-24 02:00:58,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:00:58,592 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 185 [2024-11-24 02:00:58,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:00:58,803 INFO L225 Difference]: With dead ends: 21331 [2024-11-24 02:00:58,804 INFO L226 Difference]: Without dead ends: 17065 [2024-11-24 02:00:58,835 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:00:58,838 INFO L435 NwaCegarLoop]: 1224 mSDtfsCounter, 4256 mSDsluCounter, 3853 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 348 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4256 SdHoareTripleChecker+Valid, 5077 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-24 02:00:58,839 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4256 Valid, 5077 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-24 02:00:58,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17065 states. [2024-11-24 02:00:59,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17065 to 17052. [2024-11-24 02:01:00,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17052 states, 12342 states have (on average 1.388510776211311) internal successors, (17137), 13022 states have internal predecessors, (17137), 3718 states have call successors, (3718), 1004 states have call predecessors, (3718), 991 states have return successors, (5609), 3507 states have call predecessors, (5609), 3717 states have call successors, (5609) [2024-11-24 02:01:00,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17052 states to 17052 states and 26464 transitions. [2024-11-24 02:01:00,202 INFO L78 Accepts]: Start accepts. Automaton has 17052 states and 26464 transitions. Word has length 185 [2024-11-24 02:01:00,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:00,204 INFO L471 AbstractCegarLoop]: Abstraction has 17052 states and 26464 transitions. [2024-11-24 02:01:00,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 02:01:00,205 INFO L276 IsEmpty]: Start isEmpty. Operand 17052 states and 26464 transitions. [2024-11-24 02:01:00,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-24 02:01:00,209 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:00,210 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:00,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 02:01:00,210 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:00,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:00,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1128706811, now seen corresponding path program 1 times [2024-11-24 02:01:00,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:00,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2037503627] [2024-11-24 02:01:00,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:00,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:00,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:00,778 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2024-11-24 02:01:00,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:00,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2037503627] [2024-11-24 02:01:00,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2037503627] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:00,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:00,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:01:00,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247587044] [2024-11-24 02:01:00,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:00,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:01:00,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:00,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:01:00,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:01:00,782 INFO L87 Difference]: Start difference. First operand 17052 states and 26464 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 02:01:04,791 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 [] [2024-11-24 02:01:10,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:10,537 INFO L93 Difference]: Finished difference Result 84944 states and 142614 transitions. [2024-11-24 02:01:10,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:01:10,538 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 186 [2024-11-24 02:01:10,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:11,122 INFO L225 Difference]: With dead ends: 84944 [2024-11-24 02:01:11,122 INFO L226 Difference]: Without dead ends: 67941 [2024-11-24 02:01:11,273 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:01:11,274 INFO L435 NwaCegarLoop]: 1230 mSDtfsCounter, 4264 mSDsluCounter, 3856 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 348 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4264 SdHoareTripleChecker+Valid, 5086 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.8s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:11,276 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4264 Valid, 5086 Invalid, 1117 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [348 Valid, 768 Invalid, 1 Unknown, 0 Unchecked, 6.8s Time] [2024-11-24 02:01:11,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67941 states. [2024-11-24 02:01:15,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67941 to 67924. [2024-11-24 02:01:15,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67924 states, 49250 states have (on average 1.3851167512690354) internal successors, (68217), 51870 states have internal predecessors, (68217), 14722 states have call successors, (14722), 4004 states have call predecessors, (14722), 3951 states have return successors, (27995), 13971 states have call predecessors, (27995), 14721 states have call successors, (27995) [2024-11-24 02:01:15,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67924 states to 67924 states and 110934 transitions. [2024-11-24 02:01:16,040 INFO L78 Accepts]: Start accepts. Automaton has 67924 states and 110934 transitions. Word has length 186 [2024-11-24 02:01:16,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 02:01:16,041 INFO L471 AbstractCegarLoop]: Abstraction has 67924 states and 110934 transitions. [2024-11-24 02:01:16,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 02:01:16,041 INFO L276 IsEmpty]: Start isEmpty. Operand 67924 states and 110934 transitions. [2024-11-24 02:01:16,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-24 02:01:16,044 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 02:01:16,045 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 02:01:16,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 02:01:16,045 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 02:01:16,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 02:01:16,046 INFO L85 PathProgramCache]: Analyzing trace with hash 2019265564, now seen corresponding path program 1 times [2024-11-24 02:01:16,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 02:01:16,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959867175] [2024-11-24 02:01:16,046 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 02:01:16,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 02:01:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 02:01:16,665 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2024-11-24 02:01:16,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 02:01:16,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959867175] [2024-11-24 02:01:16,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959867175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 02:01:16,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 02:01:16,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 02:01:16,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245993691] [2024-11-24 02:01:16,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 02:01:16,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 02:01:16,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 02:01:16,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 02:01:16,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:01:16,668 INFO L87 Difference]: Start difference. First operand 67924 states and 110934 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-24 02:01:20,678 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 [] [2024-11-24 02:01:33,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 02:01:33,281 INFO L93 Difference]: Finished difference Result 334176 states and 594653 transitions. [2024-11-24 02:01:33,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 02:01:33,291 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 187 [2024-11-24 02:01:33,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 02:01:36,365 INFO L225 Difference]: With dead ends: 334176 [2024-11-24 02:01:36,365 INFO L226 Difference]: Without dead ends: 266301 [2024-11-24 02:01:36,966 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-24 02:01:36,967 INFO L435 NwaCegarLoop]: 1218 mSDtfsCounter, 4365 mSDsluCounter, 3468 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 465 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4365 SdHoareTripleChecker+Valid, 4686 SdHoareTripleChecker+Invalid, 1526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 465 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.0s IncrementalHoareTripleChecker+Time [2024-11-24 02:01:36,967 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4365 Valid, 4686 Invalid, 1526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [465 Valid, 1060 Invalid, 1 Unknown, 0 Unchecked, 7.0s Time] [2024-11-24 02:01:37,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266301 states.