./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.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_30daf569-7f9a-402e-9d80-b45f5bba377d/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30daf569-7f9a-402e-9d80-b45f5bba377d/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_30daf569-7f9a-402e-9d80-b45f5bba377d/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30daf569-7f9a-402e-9d80-b45f5bba377d/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30daf569-7f9a-402e-9d80-b45f5bba377d/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_30daf569-7f9a-402e-9d80-b45f5bba377d/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 8cac8187c908783c6da6279dd5046ee81ec4fe5bbaff4f4fff097111c44b0a84 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:09:20,680 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:09:20,783 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30daf569-7f9a-402e-9d80-b45f5bba377d/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-24 01:09:20,789 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:09:20,789 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:09:20,837 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:09:20,838 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:09:20,838 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:09:20,838 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:09:20,838 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:09:20,839 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:09:20,839 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:09:20,840 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:09:20,840 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:09:20,841 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:09:20,842 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:09:20,842 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:09:20,842 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:09:20,843 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:09:20,843 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:09:20,843 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:09:20,843 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:09:20,843 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:09:20,843 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:09:20,843 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:09:20,843 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:09:20,843 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:09:20,844 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:09:20,844 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:09:20,844 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:09:20,844 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:09:20,844 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:09:20,844 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:09:20,844 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:09:20,844 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:09:20,844 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:09:20,844 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:09:20,845 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:09:20,845 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:09:20,845 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:09:20,846 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:09:20,846 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:09:20,846 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:09:20,846 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:09:20,846 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:09:20,846 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_30daf569-7f9a-402e-9d80-b45f5bba377d/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 -> 8cac8187c908783c6da6279dd5046ee81ec4fe5bbaff4f4fff097111c44b0a84 [2024-11-24 01:09:21,211 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:09:21,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:09:21,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:09:21,229 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:09:21,230 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:09:21,232 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30daf569-7f9a-402e-9d80-b45f5bba377d/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i [2024-11-24 01:09:24,264 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30daf569-7f9a-402e-9d80-b45f5bba377d/bin/uautomizer-verify-LYvppIcaGC/data/81458092b/12aab47db6fd4bf39077630e8872c0bf/FLAG6fa52793c [2024-11-24 01:09:24,807 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:09:24,809 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30daf569-7f9a-402e-9d80-b45f5bba377d/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i [2024-11-24 01:09:24,846 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30daf569-7f9a-402e-9d80-b45f5bba377d/bin/uautomizer-verify-LYvppIcaGC/data/81458092b/12aab47db6fd4bf39077630e8872c0bf/FLAG6fa52793c [2024-11-24 01:09:24,872 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30daf569-7f9a-402e-9d80-b45f5bba377d/bin/uautomizer-verify-LYvppIcaGC/data/81458092b/12aab47db6fd4bf39077630e8872c0bf [2024-11-24 01:09:24,875 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:09:24,877 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:09:24,879 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:09:24,879 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:09:24,885 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:09:24,886 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:09:24" (1/1) ... [2024-11-24 01:09:24,889 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dac6266 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:24, skipping insertion in model container [2024-11-24 01:09:24,889 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:09:24" (1/1) ... [2024-11-24 01:09:24,980 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:09:25,292 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1764] [2024-11-24 01:09:25,293 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1765-1766] [2024-11-24 01:09:25,482 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_30daf569-7f9a-402e-9d80-b45f5bba377d/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i[52456,52469] [2024-11-24 01:09:25,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:09:25,817 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:09:25,915 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [1764] [2024-11-24 01:09:25,916 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [1765-1766] [2024-11-24 01:09:25,921 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [1855] [2024-11-24 01:09:25,924 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [1858] [2024-11-24 01:09:25,924 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [1861] [2024-11-24 01:09:25,924 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [1864] [2024-11-24 01:09:25,929 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)); [1902] [2024-11-24 01:09:25,942 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_30daf569-7f9a-402e-9d80-b45f5bba377d/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i[52456,52469] [2024-11-24 01:09:26,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:09:26,049 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:09:26,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:26 WrapperNode [2024-11-24 01:09:26,050 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:09:26,051 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:09:26,051 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:09:26,052 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:09:26,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:26" (1/1) ... [2024-11-24 01:09:26,098 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:26" (1/1) ... [2024-11-24 01:09:26,171 INFO L138 Inliner]: procedures = 114, calls = 293, calls flagged for inlining = 50, calls inlined = 38, statements flattened = 930 [2024-11-24 01:09:26,172 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:09:26,172 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:09:26,172 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:09:26,172 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:09:26,212 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:26" (1/1) ... [2024-11-24 01:09:26,212 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:26" (1/1) ... [2024-11-24 01:09:26,220 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:26" (1/1) ... [2024-11-24 01:09:26,263 INFO L175 MemorySlicer]: Split 79 memory accesses to 14 slices as follows [2, 1, 12, 0, 10, 12, 5, 4, 1, 1, 24, 4, 1, 2]. 30 percent of accesses are in the largest equivalence class. The 55 initializations are split as follows [2, 0, 12, 0, 10, 1, 0, 4, 1, 1, 18, 4, 1, 1]. The 9 writes are split as follows [0, 1, 0, 0, 0, 4, 3, 0, 0, 0, 1, 0, 0, 0]. [2024-11-24 01:09:26,264 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:26" (1/1) ... [2024-11-24 01:09:26,264 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:26" (1/1) ... [2024-11-24 01:09:26,297 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:26" (1/1) ... [2024-11-24 01:09:26,299 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:26" (1/1) ... [2024-11-24 01:09:26,314 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:26" (1/1) ... [2024-11-24 01:09:26,328 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:26" (1/1) ... [2024-11-24 01:09:26,335 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:26" (1/1) ... [2024-11-24 01:09:26,355 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:09:26,356 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:09:26,356 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:09:26,356 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:09:26,358 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:26" (1/1) ... [2024-11-24 01:09:26,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:09:26,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30daf569-7f9a-402e-9d80-b45f5bba377d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:09:26,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30daf569-7f9a-402e-9d80-b45f5bba377d/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:09:26,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30daf569-7f9a-402e-9d80-b45f5bba377d/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:09:26,432 INFO L130 BoogieDeclarations]: Found specification of procedure _torture_stop_kthread [2024-11-24 01:09:26,432 INFO L138 BoogieDeclarations]: Found implementation of procedure _torture_stop_kthread [2024-11-24 01:09:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_busted_write_lock [2024-11-24 01:09:26,433 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_busted_write_lock [2024-11-24 01:09:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-24 01:09:26,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-24 01:09:26,433 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 01:09:26,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 01:09:26,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 01:09:26,434 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 01:09:26,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 01:09:26,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-24 01:09:26,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-24 01:09:26,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-24 01:09:26,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-24 01:09:26,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-24 01:09:26,436 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-24 01:09:26,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-24 01:09:26,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-24 01:09:26,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-24 01:09:26,437 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_delay [2024-11-24 01:09:26,437 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_delay [2024-11-24 01:09:26,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2024-11-24 01:09:26,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2024-11-24 01:09:26,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-24 01:09:26,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-24 01:09:26,437 INFO L130 BoogieDeclarations]: Found specification of procedure _torture_create_kthread [2024-11-24 01:09:26,437 INFO L138 BoogieDeclarations]: Found implementation of procedure _torture_create_kthread [2024-11-24 01:09:26,437 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_lock [2024-11-24 01:09:26,438 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_lock [2024-11-24 01:09:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2024-11-24 01:09:26,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2024-11-24 01:09:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-24 01:09:26,438 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-24 01:09:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_spin_write_unlock_irq [2024-11-24 01:09:26,438 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_spin_write_unlock_irq [2024-11-24 01:09:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 01:09:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 01:09:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 01:09:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 01:09:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 01:09:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-24 01:09:26,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-24 01:09:26,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-24 01:09:26,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-24 01:09:26,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-24 01:09:26,439 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-24 01:09:26,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-24 01:09:26,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-24 01:09:26,443 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-24 01:09:26,443 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-24 01:09:26,443 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-24 01:09:26,443 INFO L130 BoogieDeclarations]: Found specification of procedure torture_random [2024-11-24 01:09:26,444 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_random [2024-11-24 01:09:26,444 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_cleanup [2024-11-24 01:09:26,444 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_cleanup [2024-11-24 01:09:26,444 INFO L130 BoogieDeclarations]: Found specification of procedure torture_init_end [2024-11-24 01:09:26,444 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_init_end [2024-11-24 01:09:26,444 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:09:26,444 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:09:26,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 01:09:26,444 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~~TO~VOID [2024-11-24 01:09:26,444 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~~TO~VOID [2024-11-24 01:09:26,444 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:09:26,444 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-24 01:09:26,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-24 01:09:26,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-24 01:09:26,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-24 01:09:26,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-24 01:09:26,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-24 01:09:26,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-24 01:09:26,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-24 01:09:26,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-24 01:09:26,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-24 01:09:26,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-24 01:09:26,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-24 01:09:26,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-24 01:09:26,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-24 01:09:26,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-24 01:09:26,445 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-24 01:09:26,445 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 01:09:26,445 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_stats_print [2024-11-24 01:09:26,445 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_stats_print [2024-11-24 01:09:26,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-24 01:09:26,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-24 01:09:26,445 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-24 01:09:26,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-24 01:09:26,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-24 01:09:26,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-24 01:09:26,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-24 01:09:26,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-24 01:09:26,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-24 01:09:26,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-24 01:09:26,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-24 01:09:26,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-24 01:09:26,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-24 01:09:26,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-24 01:09:26,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2024-11-24 01:09:26,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2024-11-24 01:09:26,446 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_lock_irq [2024-11-24 01:09:26,446 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_lock_irq [2024-11-24 01:09:26,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 01:09:26,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-24 01:09:26,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-24 01:09:26,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-24 01:09:26,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-24 01:09:26,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-24 01:09:26,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-24 01:09:26,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-24 01:09:26,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-24 01:09:26,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-24 01:09:26,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-24 01:09:26,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-24 01:09:26,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-24 01:09:26,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-24 01:09:26,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-24 01:09:26,452 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_busted_write_delay [2024-11-24 01:09:26,452 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_busted_write_delay [2024-11-24 01:09:26,452 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-24 01:09:26,453 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-24 01:09:26,453 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-24 01:09:26,453 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-24 01:09:26,453 INFO L130 BoogieDeclarations]: Found specification of procedure torture_lock_busted_write_unlock [2024-11-24 01:09:26,453 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_lock_busted_write_unlock [2024-11-24 01:09:26,453 INFO L130 BoogieDeclarations]: Found specification of procedure lock_torture_print_module_parms [2024-11-24 01:09:26,453 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_torture_print_module_parms [2024-11-24 01:09:26,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:09:26,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 01:09:26,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 01:09:26,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 01:09:26,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 01:09:26,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 01:09:26,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-24 01:09:26,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-24 01:09:26,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-24 01:09:26,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-24 01:09:26,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-24 01:09:26,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-24 01:09:26,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-24 01:09:26,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-24 01:09:26,455 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-24 01:09:26,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-24 01:09:26,455 INFO L130 BoogieDeclarations]: Found specification of procedure torture_spin_lock_write_unlock [2024-11-24 01:09:26,455 INFO L138 BoogieDeclarations]: Found implementation of procedure torture_spin_lock_write_unlock [2024-11-24 01:09:26,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:09:26,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:09:26,859 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:09:26,863 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:09:26,904 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-24 01:09:28,321 INFO L? ?]: Removed 301 outVars from TransFormulas that were not future-live. [2024-11-24 01:09:28,322 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:09:28,341 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:09:28,341 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:09:28,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:09:28 BoogieIcfgContainer [2024-11-24 01:09:28,342 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:09:28,345 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:09:28,345 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:09:28,350 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:09:28,351 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:09:24" (1/3) ... [2024-11-24 01:09:28,351 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5659d940 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:09:28, skipping insertion in model container [2024-11-24 01:09:28,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:09:26" (2/3) ... [2024-11-24 01:09:28,352 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5659d940 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:09:28, skipping insertion in model container [2024-11-24 01:09:28,352 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:09:28" (3/3) ... [2024-11-24 01:09:28,353 INFO L128 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i [2024-11-24 01:09:28,368 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:09:28,370 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-kernel--locking--locktorture.ko-entry_point.cil.out.i that has 29 procedures, 373 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-24 01:09:28,450 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:09:28,463 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;@6a7bde7f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:09:28,464 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:09:28,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 372 states, 273 states have (on average 1.3992673992673992) internal successors, (382), 289 states have internal predecessors, (382), 70 states have call successors, (70), 28 states have call predecessors, (70), 27 states have return successors, (65), 60 states have call predecessors, (65), 65 states have call successors, (65) [2024-11-24 01:09:28,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-24 01:09:28,493 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:28,496 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:09:28,496 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:28,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:28,504 INFO L85 PathProgramCache]: Analyzing trace with hash 295352937, now seen corresponding path program 1 times [2024-11-24 01:09:28,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:28,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330584251] [2024-11-24 01:09:28,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:28,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:28,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:29,227 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 01:09:29,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:29,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330584251] [2024-11-24 01:09:29,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330584251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:29,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:29,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:09:29,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084477611] [2024-11-24 01:09:29,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:29,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:09:29,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:29,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:09:29,264 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:09:29,268 INFO L87 Difference]: Start difference. First operand has 372 states, 273 states have (on average 1.3992673992673992) internal successors, (382), 289 states have internal predecessors, (382), 70 states have call successors, (70), 28 states have call predecessors, (70), 27 states have return successors, (65), 60 states have call predecessors, (65), 65 states have call successors, (65) Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 01:09:29,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:29,537 INFO L93 Difference]: Finished difference Result 999 states and 1405 transitions. [2024-11-24 01:09:29,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:09:29,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2024-11-24 01:09:29,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:29,562 INFO L225 Difference]: With dead ends: 999 [2024-11-24 01:09:29,562 INFO L226 Difference]: Without dead ends: 557 [2024-11-24 01:09:29,573 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 01:09:29,577 INFO L435 NwaCegarLoop]: 532 mSDtfsCounter, 476 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 902 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:29,578 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 902 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:09:29,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2024-11-24 01:09:29,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 554. [2024-11-24 01:09:29,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 417 states have (on average 1.3741007194244603) internal successors, (573), 428 states have internal predecessors, (573), 95 states have call successors, (95), 46 states have call predecessors, (95), 41 states have return successors, (90), 85 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-24 01:09:29,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 758 transitions. [2024-11-24 01:09:29,734 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 758 transitions. Word has length 46 [2024-11-24 01:09:29,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:29,735 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 758 transitions. [2024-11-24 01:09:29,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-24 01:09:29,735 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 758 transitions. [2024-11-24 01:09:29,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-24 01:09:29,742 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:29,742 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:09:29,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:09:29,742 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:29,743 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:29,743 INFO L85 PathProgramCache]: Analyzing trace with hash -341583751, now seen corresponding path program 1 times [2024-11-24 01:09:29,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:29,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349594160] [2024-11-24 01:09:29,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:29,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:29,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:30,080 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 01:09:30,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:30,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349594160] [2024-11-24 01:09:30,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349594160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:30,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:30,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:09:30,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013649170] [2024-11-24 01:09:30,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:30,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:09:30,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:30,083 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:09:30,083 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:09:30,084 INFO L87 Difference]: Start difference. First operand 554 states and 758 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-24 01:09:30,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:30,171 INFO L93 Difference]: Finished difference Result 559 states and 763 transitions. [2024-11-24 01:09:30,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:09:30,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 55 [2024-11-24 01:09:30,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:30,180 INFO L225 Difference]: With dead ends: 559 [2024-11-24 01:09:30,181 INFO L226 Difference]: Without dead ends: 555 [2024-11-24 01:09:30,181 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 01:09:30,183 INFO L435 NwaCegarLoop]: 494 mSDtfsCounter, 0 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:30,183 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 983 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:09:30,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-24 01:09:30,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 555. [2024-11-24 01:09:30,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 418 states have (on average 1.3708133971291867) internal successors, (573), 429 states have internal predecessors, (573), 95 states have call successors, (95), 46 states have call predecessors, (95), 41 states have return successors, (90), 85 states have call predecessors, (90), 90 states have call successors, (90) [2024-11-24 01:09:30,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 758 transitions. [2024-11-24 01:09:30,261 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 758 transitions. Word has length 55 [2024-11-24 01:09:30,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:30,262 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 758 transitions. [2024-11-24 01:09:30,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-24 01:09:30,262 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 758 transitions. [2024-11-24 01:09:30,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-24 01:09:30,269 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:30,269 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:09:30,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:09:30,270 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:30,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:30,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1826672211, now seen corresponding path program 1 times [2024-11-24 01:09:30,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:30,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214182197] [2024-11-24 01:09:30,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:30,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:30,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:30,787 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 01:09:30,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:30,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214182197] [2024-11-24 01:09:30,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214182197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:30,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:30,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:09:30,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291869308] [2024-11-24 01:09:30,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:30,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:09:30,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:30,789 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:09:30,789 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:09:30,789 INFO L87 Difference]: Start difference. First operand 555 states and 758 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-24 01:09:30,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:30,972 INFO L93 Difference]: Finished difference Result 1550 states and 2170 transitions. [2024-11-24 01:09:30,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:09:30,972 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 57 [2024-11-24 01:09:30,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:30,988 INFO L225 Difference]: With dead ends: 1550 [2024-11-24 01:09:30,988 INFO L226 Difference]: Without dead ends: 991 [2024-11-24 01:09:30,993 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:09:30,995 INFO L435 NwaCegarLoop]: 494 mSDtfsCounter, 442 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 1433 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:30,998 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 1433 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:09:31,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2024-11-24 01:09:31,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 957. [2024-11-24 01:09:31,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 734 states have (on average 1.4087193460490464) internal successors, (1034), 754 states have internal predecessors, (1034), 156 states have call successors, (156), 71 states have call predecessors, (156), 66 states have return successors, (152), 143 states have call predecessors, (152), 151 states have call successors, (152) [2024-11-24 01:09:31,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1342 transitions. [2024-11-24 01:09:31,117 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1342 transitions. Word has length 57 [2024-11-24 01:09:31,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:31,118 INFO L471 AbstractCegarLoop]: Abstraction has 957 states and 1342 transitions. [2024-11-24 01:09:31,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-24 01:09:31,118 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1342 transitions. [2024-11-24 01:09:31,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-24 01:09:31,123 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:31,123 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:09:31,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:09:31,124 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:31,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:31,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1730373810, now seen corresponding path program 1 times [2024-11-24 01:09:31,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:31,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880245104] [2024-11-24 01:09:31,124 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:31,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:31,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:31,297 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 01:09:31,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:31,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880245104] [2024-11-24 01:09:31,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880245104] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:31,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:31,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:09:31,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068945488] [2024-11-24 01:09:31,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:31,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:09:31,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:31,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:09:31,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:09:31,299 INFO L87 Difference]: Start difference. First operand 957 states and 1342 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, (12), 2 states have call predecessors, (12), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 01:09:31,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:31,486 INFO L93 Difference]: Finished difference Result 2719 states and 3806 transitions. [2024-11-24 01:09:31,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:09:31,487 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, (12), 2 states have call predecessors, (12), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 72 [2024-11-24 01:09:31,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:31,500 INFO L225 Difference]: With dead ends: 2719 [2024-11-24 01:09:31,501 INFO L226 Difference]: Without dead ends: 1782 [2024-11-24 01:09:31,508 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 01:09:31,509 INFO L435 NwaCegarLoop]: 538 mSDtfsCounter, 441 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:31,509 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 989 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:09:31,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1782 states. [2024-11-24 01:09:31,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1782 to 1750. [2024-11-24 01:09:31,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1750 states, 1341 states have (on average 1.4049217002237135) internal successors, (1884), 1381 states have internal predecessors, (1884), 283 states have call successors, (283), 130 states have call predecessors, (283), 125 states have return successors, (280), 262 states have call predecessors, (280), 278 states have call successors, (280) [2024-11-24 01:09:31,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1750 states to 1750 states and 2447 transitions. [2024-11-24 01:09:31,735 INFO L78 Accepts]: Start accepts. Automaton has 1750 states and 2447 transitions. Word has length 72 [2024-11-24 01:09:31,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:31,735 INFO L471 AbstractCegarLoop]: Abstraction has 1750 states and 2447 transitions. [2024-11-24 01:09:31,735 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, (12), 2 states have call predecessors, (12), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 01:09:31,736 INFO L276 IsEmpty]: Start isEmpty. Operand 1750 states and 2447 transitions. [2024-11-24 01:09:31,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-24 01:09:31,747 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:31,747 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:09:31,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:09:31,748 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:31,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:31,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1449144369, now seen corresponding path program 1 times [2024-11-24 01:09:31,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:31,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9223551] [2024-11-24 01:09:31,749 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:31,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:31,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:31,951 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-24 01:09:31,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:31,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9223551] [2024-11-24 01:09:31,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9223551] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:31,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:31,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:09:31,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561576224] [2024-11-24 01:09:31,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:31,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:09:31,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:31,956 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:09:31,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:09:31,956 INFO L87 Difference]: Start difference. First operand 1750 states and 2447 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 01:09:32,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:32,094 INFO L93 Difference]: Finished difference Result 3484 states and 4879 transitions. [2024-11-24 01:09:32,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:09:32,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 76 [2024-11-24 01:09:32,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:32,113 INFO L225 Difference]: With dead ends: 3484 [2024-11-24 01:09:32,113 INFO L226 Difference]: Without dead ends: 1754 [2024-11-24 01:09:32,119 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 01:09:32,121 INFO L435 NwaCegarLoop]: 494 mSDtfsCounter, 0 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 983 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:32,122 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 983 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:09:32,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states. [2024-11-24 01:09:32,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 1754. [2024-11-24 01:09:32,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1754 states, 1345 states have (on average 1.4037174721189591) internal successors, (1888), 1385 states have internal predecessors, (1888), 283 states have call successors, (283), 130 states have call predecessors, (283), 125 states have return successors, (280), 262 states have call predecessors, (280), 278 states have call successors, (280) [2024-11-24 01:09:32,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1754 states to 1754 states and 2451 transitions. [2024-11-24 01:09:32,262 INFO L78 Accepts]: Start accepts. Automaton has 1754 states and 2451 transitions. Word has length 76 [2024-11-24 01:09:32,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:32,262 INFO L471 AbstractCegarLoop]: Abstraction has 1754 states and 2451 transitions. [2024-11-24 01:09:32,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 01:09:32,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1754 states and 2451 transitions. [2024-11-24 01:09:32,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-24 01:09:32,271 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:32,271 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:09:32,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:09:32,275 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:32,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:32,275 INFO L85 PathProgramCache]: Analyzing trace with hash 1096055987, now seen corresponding path program 1 times [2024-11-24 01:09:32,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:32,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759780008] [2024-11-24 01:09:32,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:32,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:32,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:32,496 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-24 01:09:32,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:32,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759780008] [2024-11-24 01:09:32,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759780008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:32,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:32,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:09:32,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392083321] [2024-11-24 01:09:32,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:32,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:09:32,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:32,500 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:09:32,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:09:32,500 INFO L87 Difference]: Start difference. First operand 1754 states and 2451 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 01:09:32,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:32,703 INFO L93 Difference]: Finished difference Result 3500 states and 4895 transitions. [2024-11-24 01:09:32,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:09:32,704 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 76 [2024-11-24 01:09:32,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:32,718 INFO L225 Difference]: With dead ends: 3500 [2024-11-24 01:09:32,718 INFO L226 Difference]: Without dead ends: 1706 [2024-11-24 01:09:32,723 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:09:32,724 INFO L435 NwaCegarLoop]: 493 mSDtfsCounter, 1 mSDsluCounter, 978 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1471 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:32,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1471 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:09:32,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1706 states. [2024-11-24 01:09:32,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1706 to 1702. [2024-11-24 01:09:32,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1702 states, 1313 states have (on average 1.4044173648134044) internal successors, (1844), 1353 states have internal predecessors, (1844), 263 states have call successors, (263), 130 states have call predecessors, (263), 125 states have return successors, (260), 242 states have call predecessors, (260), 258 states have call successors, (260) [2024-11-24 01:09:32,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1702 states to 1702 states and 2367 transitions. [2024-11-24 01:09:32,857 INFO L78 Accepts]: Start accepts. Automaton has 1702 states and 2367 transitions. Word has length 76 [2024-11-24 01:09:32,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:32,859 INFO L471 AbstractCegarLoop]: Abstraction has 1702 states and 2367 transitions. [2024-11-24 01:09:32,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 01:09:32,859 INFO L276 IsEmpty]: Start isEmpty. Operand 1702 states and 2367 transitions. [2024-11-24 01:09:32,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-24 01:09:32,862 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:32,862 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-24 01:09:32,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:09:32,862 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:32,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:32,863 INFO L85 PathProgramCache]: Analyzing trace with hash 1610760598, now seen corresponding path program 1 times [2024-11-24 01:09:32,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:32,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761608812] [2024-11-24 01:09:32,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:32,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:32,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:32,991 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 01:09:32,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:32,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761608812] [2024-11-24 01:09:32,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761608812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:32,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:32,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:09:32,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713990632] [2024-11-24 01:09:32,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:32,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:09:32,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:32,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:09:32,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:09:32,995 INFO L87 Difference]: Start difference. First operand 1702 states and 2367 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 01:09:33,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:33,260 INFO L93 Difference]: Finished difference Result 4771 states and 6619 transitions. [2024-11-24 01:09:33,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:09:33,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 78 [2024-11-24 01:09:33,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:33,283 INFO L225 Difference]: With dead ends: 4771 [2024-11-24 01:09:33,283 INFO L226 Difference]: Without dead ends: 3089 [2024-11-24 01:09:33,289 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 01:09:33,290 INFO L435 NwaCegarLoop]: 558 mSDtfsCounter, 415 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 415 SdHoareTripleChecker+Valid, 989 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:33,291 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [415 Valid, 989 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:09:33,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3089 states. [2024-11-24 01:09:33,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3089 to 3057. [2024-11-24 01:09:33,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3057 states, 2355 states have (on average 1.3995753715498938) internal successors, (3296), 2431 states have internal predecessors, (3296), 468 states have call successors, (468), 238 states have call predecessors, (468), 233 states have return successors, (467), 431 states have call predecessors, (467), 463 states have call successors, (467) [2024-11-24 01:09:33,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3057 states to 3057 states and 4231 transitions. [2024-11-24 01:09:33,596 INFO L78 Accepts]: Start accepts. Automaton has 3057 states and 4231 transitions. Word has length 78 [2024-11-24 01:09:33,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:33,596 INFO L471 AbstractCegarLoop]: Abstraction has 3057 states and 4231 transitions. [2024-11-24 01:09:33,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-24 01:09:33,597 INFO L276 IsEmpty]: Start isEmpty. Operand 3057 states and 4231 transitions. [2024-11-24 01:09:33,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-24 01:09:33,609 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:33,609 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:09:33,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:09:33,610 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:33,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:33,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1633432500, now seen corresponding path program 1 times [2024-11-24 01:09:33,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:33,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856559399] [2024-11-24 01:09:33,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:33,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:33,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:33,861 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-24 01:09:33,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:33,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856559399] [2024-11-24 01:09:33,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856559399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:33,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:33,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:09:33,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281492289] [2024-11-24 01:09:33,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:33,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:09:33,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:33,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:09:33,864 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:09:33,864 INFO L87 Difference]: Start difference. First operand 3057 states and 4231 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-24 01:09:34,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:34,094 INFO L93 Difference]: Finished difference Result 6094 states and 8439 transitions. [2024-11-24 01:09:34,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:09:34,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 123 [2024-11-24 01:09:34,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:34,118 INFO L225 Difference]: With dead ends: 6094 [2024-11-24 01:09:34,118 INFO L226 Difference]: Without dead ends: 3057 [2024-11-24 01:09:34,127 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 01:09:34,127 INFO L435 NwaCegarLoop]: 473 mSDtfsCounter, 452 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 452 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:34,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [452 Valid, 473 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:09:34,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3057 states. [2024-11-24 01:09:34,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3057 to 3057. [2024-11-24 01:09:34,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3057 states, 2355 states have (on average 1.3961783439490445) internal successors, (3288), 2431 states have internal predecessors, (3288), 468 states have call successors, (468), 238 states have call predecessors, (468), 233 states have return successors, (467), 431 states have call predecessors, (467), 463 states have call successors, (467) [2024-11-24 01:09:34,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3057 states to 3057 states and 4223 transitions. [2024-11-24 01:09:34,422 INFO L78 Accepts]: Start accepts. Automaton has 3057 states and 4223 transitions. Word has length 123 [2024-11-24 01:09:34,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:34,422 INFO L471 AbstractCegarLoop]: Abstraction has 3057 states and 4223 transitions. [2024-11-24 01:09:34,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-24 01:09:34,423 INFO L276 IsEmpty]: Start isEmpty. Operand 3057 states and 4223 transitions. [2024-11-24 01:09:34,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-24 01:09:34,430 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:34,430 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:09:34,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:09:34,431 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:34,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:34,431 INFO L85 PathProgramCache]: Analyzing trace with hash 708976677, now seen corresponding path program 1 times [2024-11-24 01:09:34,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:34,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490531377] [2024-11-24 01:09:34,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:34,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:34,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:34,670 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 01:09:34,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:34,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490531377] [2024-11-24 01:09:34,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490531377] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:34,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:34,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:09:34,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87999203] [2024-11-24 01:09:34,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:34,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:09:34,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:34,672 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:09:34,672 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:09:34,673 INFO L87 Difference]: Start difference. First operand 3057 states and 4223 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:09:35,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:35,052 INFO L93 Difference]: Finished difference Result 7666 states and 10623 transitions. [2024-11-24 01:09:35,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:09:35,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 126 [2024-11-24 01:09:35,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:35,118 INFO L225 Difference]: With dead ends: 7666 [2024-11-24 01:09:35,118 INFO L226 Difference]: Without dead ends: 4629 [2024-11-24 01:09:35,126 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 01:09:35,127 INFO L435 NwaCegarLoop]: 791 mSDtfsCounter, 422 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 422 SdHoareTripleChecker+Valid, 1235 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:35,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [422 Valid, 1235 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:09:35,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4629 states. [2024-11-24 01:09:35,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4629 to 4593. [2024-11-24 01:09:35,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4593 states, 3557 states have (on average 1.3910598819229687) internal successors, (4948), 3673 states have internal predecessors, (4948), 687 states have call successors, (687), 353 states have call predecessors, (687), 348 states have return successors, (688), 634 states have call predecessors, (688), 682 states have call successors, (688) [2024-11-24 01:09:35,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4593 states to 4593 states and 6323 transitions. [2024-11-24 01:09:35,487 INFO L78 Accepts]: Start accepts. Automaton has 4593 states and 6323 transitions. Word has length 126 [2024-11-24 01:09:35,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:35,488 INFO L471 AbstractCegarLoop]: Abstraction has 4593 states and 6323 transitions. [2024-11-24 01:09:35,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:09:35,489 INFO L276 IsEmpty]: Start isEmpty. Operand 4593 states and 6323 transitions. [2024-11-24 01:09:35,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-24 01:09:35,497 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:35,497 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:09:35,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:09:35,498 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:35,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:35,499 INFO L85 PathProgramCache]: Analyzing trace with hash 400204033, now seen corresponding path program 1 times [2024-11-24 01:09:35,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:35,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146701593] [2024-11-24 01:09:35,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:35,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:35,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:35,727 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-24 01:09:35,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:35,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146701593] [2024-11-24 01:09:35,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146701593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:35,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:35,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:09:35,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117100405] [2024-11-24 01:09:35,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:35,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:09:35,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:35,729 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:09:35,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:09:35,729 INFO L87 Difference]: Start difference. First operand 4593 states and 6323 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:09:36,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:36,209 INFO L93 Difference]: Finished difference Result 11501 states and 15886 transitions. [2024-11-24 01:09:36,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:09:36,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 132 [2024-11-24 01:09:36,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:36,254 INFO L225 Difference]: With dead ends: 11501 [2024-11-24 01:09:36,255 INFO L226 Difference]: Without dead ends: 6928 [2024-11-24 01:09:36,268 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 01:09:36,269 INFO L435 NwaCegarLoop]: 785 mSDtfsCounter, 416 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 1229 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:36,269 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 1229 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:09:36,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6928 states. [2024-11-24 01:09:36,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6928 to 6890. [2024-11-24 01:09:36,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6890 states, 5362 states have (on average 1.3864229765013054) internal successors, (7434), 5538 states have internal predecessors, (7434), 1008 states have call successors, (1008), 524 states have call predecessors, (1008), 519 states have return successors, (1012), 931 states have call predecessors, (1012), 1003 states have call successors, (1012) [2024-11-24 01:09:36,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6890 states to 6890 states and 9454 transitions. [2024-11-24 01:09:36,909 INFO L78 Accepts]: Start accepts. Automaton has 6890 states and 9454 transitions. Word has length 132 [2024-11-24 01:09:36,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:36,910 INFO L471 AbstractCegarLoop]: Abstraction has 6890 states and 9454 transitions. [2024-11-24 01:09:36,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:09:36,910 INFO L276 IsEmpty]: Start isEmpty. Operand 6890 states and 9454 transitions. [2024-11-24 01:09:36,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-24 01:09:36,922 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:36,922 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:09:36,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 01:09:36,923 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:36,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:36,923 INFO L85 PathProgramCache]: Analyzing trace with hash -639023441, now seen corresponding path program 1 times [2024-11-24 01:09:36,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:36,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234675326] [2024-11-24 01:09:36,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:36,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:37,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:37,261 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 01:09:37,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:37,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234675326] [2024-11-24 01:09:37,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234675326] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:09:37,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470819618] [2024-11-24 01:09:37,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:37,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:09:37,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30daf569-7f9a-402e-9d80-b45f5bba377d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:09:37,266 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30daf569-7f9a-402e-9d80-b45f5bba377d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:09:37,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30daf569-7f9a-402e-9d80-b45f5bba377d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:09:37,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:37,789 INFO L256 TraceCheckSpWp]: Trace formula consists of 1088 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:09:37,801 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:09:37,907 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-24 01:09:37,911 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:09:37,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470819618] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:37,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:09:37,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2024-11-24 01:09:37,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708558115] [2024-11-24 01:09:37,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:37,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:09:37,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:37,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:09:37,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:09:37,916 INFO L87 Difference]: Start difference. First operand 6890 states and 9454 transitions. Second operand has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-24 01:09:38,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:38,399 INFO L93 Difference]: Finished difference Result 13868 states and 19047 transitions. [2024-11-24 01:09:38,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:09:38,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 136 [2024-11-24 01:09:38,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:38,466 INFO L225 Difference]: With dead ends: 13868 [2024-11-24 01:09:38,466 INFO L226 Difference]: Without dead ends: 6836 [2024-11-24 01:09:38,487 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:09:38,488 INFO L435 NwaCegarLoop]: 471 mSDtfsCounter, 1 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1859 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:38,488 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1859 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:09:38,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6836 states. [2024-11-24 01:09:38,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6836 to 6836. [2024-11-24 01:09:38,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6836 states, 5308 states have (on average 1.383571966842502) internal successors, (7344), 5493 states have internal predecessors, (7344), 1008 states have call successors, (1008), 524 states have call predecessors, (1008), 519 states have return successors, (1003), 922 states have call predecessors, (1003), 994 states have call successors, (1003) [2024-11-24 01:09:39,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6836 states to 6836 states and 9355 transitions. [2024-11-24 01:09:39,007 INFO L78 Accepts]: Start accepts. Automaton has 6836 states and 9355 transitions. Word has length 136 [2024-11-24 01:09:39,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:39,008 INFO L471 AbstractCegarLoop]: Abstraction has 6836 states and 9355 transitions. [2024-11-24 01:09:39,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.0) internal successors, (95), 5 states have internal predecessors, (95), 3 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-24 01:09:39,009 INFO L276 IsEmpty]: Start isEmpty. Operand 6836 states and 9355 transitions. [2024-11-24 01:09:39,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-24 01:09:39,019 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:39,019 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:09:39,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30daf569-7f9a-402e-9d80-b45f5bba377d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 01:09:39,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30daf569-7f9a-402e-9d80-b45f5bba377d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:09:39,220 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:39,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:39,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1044178400, now seen corresponding path program 1 times [2024-11-24 01:09:39,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:39,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279982062] [2024-11-24 01:09:39,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:39,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:39,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:39,449 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-24 01:09:39,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:39,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279982062] [2024-11-24 01:09:39,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279982062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:39,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:39,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:09:39,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015945354] [2024-11-24 01:09:39,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:39,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:09:39,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:39,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:09:39,451 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:09:39,452 INFO L87 Difference]: Start difference. First operand 6836 states and 9355 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-24 01:09:39,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:39,855 INFO L93 Difference]: Finished difference Result 13616 states and 18633 transitions. [2024-11-24 01:09:39,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:09:39,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 138 [2024-11-24 01:09:39,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:39,889 INFO L225 Difference]: With dead ends: 13616 [2024-11-24 01:09:39,889 INFO L226 Difference]: Without dead ends: 6800 [2024-11-24 01:09:39,906 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 01:09:39,907 INFO L435 NwaCegarLoop]: 469 mSDtfsCounter, 438 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:39,907 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 469 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:09:39,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6800 states. [2024-11-24 01:09:40,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6800 to 6800. [2024-11-24 01:09:40,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6800 states, 5272 states have (on average 1.3793626707132018) internal successors, (7272), 5457 states have internal predecessors, (7272), 1008 states have call successors, (1008), 524 states have call predecessors, (1008), 519 states have return successors, (1003), 922 states have call predecessors, (1003), 994 states have call successors, (1003) [2024-11-24 01:09:40,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6800 states to 6800 states and 9283 transitions. [2024-11-24 01:09:40,314 INFO L78 Accepts]: Start accepts. Automaton has 6800 states and 9283 transitions. Word has length 138 [2024-11-24 01:09:40,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:40,315 INFO L471 AbstractCegarLoop]: Abstraction has 6800 states and 9283 transitions. [2024-11-24 01:09:40,315 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 3 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-24 01:09:40,315 INFO L276 IsEmpty]: Start isEmpty. Operand 6800 states and 9283 transitions. [2024-11-24 01:09:40,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-24 01:09:40,326 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:40,326 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:09:40,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 01:09:40,327 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:40,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:40,328 INFO L85 PathProgramCache]: Analyzing trace with hash 1891535711, now seen corresponding path program 1 times [2024-11-24 01:09:40,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:40,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896323111] [2024-11-24 01:09:40,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:40,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:40,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:40,682 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 8 proven. 13 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 01:09:40,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:40,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896323111] [2024-11-24 01:09:40,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896323111] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:09:40,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080343626] [2024-11-24 01:09:40,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:40,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:09:40,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30daf569-7f9a-402e-9d80-b45f5bba377d/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:09:40,688 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30daf569-7f9a-402e-9d80-b45f5bba377d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:09:40,691 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30daf569-7f9a-402e-9d80-b45f5bba377d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:09:41,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:41,295 INFO L256 TraceCheckSpWp]: Trace formula consists of 1099 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:09:41,304 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:09:41,542 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-24 01:09:41,544 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:09:41,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2080343626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:41,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:09:41,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2024-11-24 01:09:41,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [943143575] [2024-11-24 01:09:41,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:41,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:09:41,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:41,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:09:41,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:09:41,547 INFO L87 Difference]: Start difference. First operand 6800 states and 9283 transitions. Second operand has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-24 01:09:43,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:43,135 INFO L93 Difference]: Finished difference Result 20334 states and 27771 transitions. [2024-11-24 01:09:43,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:09:43,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 139 [2024-11-24 01:09:43,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:43,235 INFO L225 Difference]: With dead ends: 20334 [2024-11-24 01:09:43,235 INFO L226 Difference]: Without dead ends: 20302 [2024-11-24 01:09:43,243 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:09:43,244 INFO L435 NwaCegarLoop]: 834 mSDtfsCounter, 811 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 1639 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:43,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 1639 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:09:43,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20302 states. [2024-11-24 01:09:44,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20302 to 20152. [2024-11-24 01:09:44,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20152 states, 15602 states have (on average 1.3833482886809383) internal successors, (21583), 16157 states have internal predecessors, (21583), 3000 states have call successors, (3000), 1554 states have call predecessors, (3000), 1549 states have return successors, (2995), 2752 states have call predecessors, (2995), 2968 states have call successors, (2995) [2024-11-24 01:09:44,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20152 states to 20152 states and 27578 transitions. [2024-11-24 01:09:44,538 INFO L78 Accepts]: Start accepts. Automaton has 20152 states and 27578 transitions. Word has length 139 [2024-11-24 01:09:44,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:44,539 INFO L471 AbstractCegarLoop]: Abstraction has 20152 states and 27578 transitions. [2024-11-24 01:09:44,539 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.0) internal successors, (100), 4 states have internal predecessors, (100), 4 states have call successors, (18), 4 states have call predecessors, (18), 4 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-24 01:09:44,539 INFO L276 IsEmpty]: Start isEmpty. Operand 20152 states and 27578 transitions. [2024-11-24 01:09:44,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-24 01:09:44,569 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:44,569 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:09:44,582 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30daf569-7f9a-402e-9d80-b45f5bba377d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 01:09:44,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30daf569-7f9a-402e-9d80-b45f5bba377d/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:09:44,774 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:44,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:44,774 INFO L85 PathProgramCache]: Analyzing trace with hash -23652309, now seen corresponding path program 1 times [2024-11-24 01:09:44,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:44,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789670233] [2024-11-24 01:09:44,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:44,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:44,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:45,042 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-24 01:09:45,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:45,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789670233] [2024-11-24 01:09:45,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789670233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:45,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:45,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:09:45,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870173591] [2024-11-24 01:09:45,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:45,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:09:45,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:45,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:09:45,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:09:45,046 INFO L87 Difference]: Start difference. First operand 20152 states and 27578 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-24 01:09:45,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:45,582 INFO L93 Difference]: Finished difference Result 26650 states and 36633 transitions. [2024-11-24 01:09:45,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:09:45,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 148 [2024-11-24 01:09:45,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:45,625 INFO L225 Difference]: With dead ends: 26650 [2024-11-24 01:09:45,625 INFO L226 Difference]: Without dead ends: 6331 [2024-11-24 01:09:45,671 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 01:09:45,672 INFO L435 NwaCegarLoop]: 579 mSDtfsCounter, 243 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:45,673 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 894 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:09:45,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6331 states. [2024-11-24 01:09:45,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6331 to 6331. [2024-11-24 01:09:45,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6331 states, 5063 states have (on average 1.4033181907959709) internal successors, (7105), 5186 states have internal predecessors, (7105), 804 states have call successors, (804), 468 states have call predecessors, (804), 463 states have return successors, (799), 784 states have call predecessors, (799), 799 states have call successors, (799) [2024-11-24 01:09:45,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6331 states to 6331 states and 8708 transitions. [2024-11-24 01:09:46,007 INFO L78 Accepts]: Start accepts. Automaton has 6331 states and 8708 transitions. Word has length 148 [2024-11-24 01:09:46,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:46,008 INFO L471 AbstractCegarLoop]: Abstraction has 6331 states and 8708 transitions. [2024-11-24 01:09:46,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2024-11-24 01:09:46,009 INFO L276 IsEmpty]: Start isEmpty. Operand 6331 states and 8708 transitions. [2024-11-24 01:09:46,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-24 01:09:46,026 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:46,026 INFO L218 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:09:46,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-24 01:09:46,027 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:46,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:46,027 INFO L85 PathProgramCache]: Analyzing trace with hash 730299841, now seen corresponding path program 1 times [2024-11-24 01:09:46,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:46,027 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94115092] [2024-11-24 01:09:46,027 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:46,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:46,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:46,367 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-24 01:09:46,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:46,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94115092] [2024-11-24 01:09:46,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94115092] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:46,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:46,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:09:46,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024616001] [2024-11-24 01:09:46,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:46,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:09:46,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:46,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:09:46,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:09:46,369 INFO L87 Difference]: Start difference. First operand 6331 states and 8708 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:09:46,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:46,939 INFO L93 Difference]: Finished difference Result 12684 states and 17459 transitions. [2024-11-24 01:09:46,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:09:46,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 148 [2024-11-24 01:09:46,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:46,981 INFO L225 Difference]: With dead ends: 12684 [2024-11-24 01:09:46,981 INFO L226 Difference]: Without dead ends: 6373 [2024-11-24 01:09:46,997 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 01:09:46,998 INFO L435 NwaCegarLoop]: 451 mSDtfsCounter, 8 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 892 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:46,999 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 892 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:09:47,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6373 states. [2024-11-24 01:09:47,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6373 to 6334. [2024-11-24 01:09:47,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6334 states, 5066 states have (on average 1.4030793525463876) internal successors, (7108), 5189 states have internal predecessors, (7108), 804 states have call successors, (804), 468 states have call predecessors, (804), 463 states have return successors, (799), 784 states have call predecessors, (799), 799 states have call successors, (799) [2024-11-24 01:09:47,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6334 states to 6334 states and 8711 transitions. [2024-11-24 01:09:47,572 INFO L78 Accepts]: Start accepts. Automaton has 6334 states and 8711 transitions. Word has length 148 [2024-11-24 01:09:47,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:47,573 INFO L471 AbstractCegarLoop]: Abstraction has 6334 states and 8711 transitions. [2024-11-24 01:09:47,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:09:47,573 INFO L276 IsEmpty]: Start isEmpty. Operand 6334 states and 8711 transitions. [2024-11-24 01:09:47,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-24 01:09:47,596 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:09:47,596 INFO L218 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:09:47,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 01:09:47,597 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:09:47,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:09:47,598 INFO L85 PathProgramCache]: Analyzing trace with hash -825275102, now seen corresponding path program 1 times [2024-11-24 01:09:47,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:09:47,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886640274] [2024-11-24 01:09:47,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:09:47,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:09:47,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:09:48,420 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-24 01:09:48,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:09:48,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886640274] [2024-11-24 01:09:48,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886640274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:09:48,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:09:48,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:09:48,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310795021] [2024-11-24 01:09:48,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:09:48,422 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:09:48,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:09:48,423 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:09:48,423 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:09:48,423 INFO L87 Difference]: Start difference. First operand 6334 states and 8711 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:09:48,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:09:48,654 INFO L93 Difference]: Finished difference Result 6914 states and 9453 transitions. [2024-11-24 01:09:48,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:09:48,655 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) Word has length 150 [2024-11-24 01:09:48,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:09:48,668 INFO L225 Difference]: With dead ends: 6914 [2024-11-24 01:09:48,669 INFO L226 Difference]: Without dead ends: 0 [2024-11-24 01:09:48,682 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:09:48,683 INFO L435 NwaCegarLoop]: 259 mSDtfsCounter, 262 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 773 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:09:48,684 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 773 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:09:48,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-24 01:09:48,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-24 01:09:48,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-24 01:09:48,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-24 01:09:48,695 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 150 [2024-11-24 01:09:48,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:09:48,695 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-24 01:09:48,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 4 states have internal predecessors, (103), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (13), 3 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-24 01:09:48,696 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-24 01:09:48,696 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 01:09:48,698 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-24 01:09:48,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 01:09:48,704 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:09:48,707 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-24 01:09:56,987 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-24 01:09:57,006 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~lwsa~0!base [2024-11-24 01:09:57,007 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~lwsa~0!offset [2024-11-24 01:09:57,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 01:09:57 BoogieIcfgContainer [2024-11-24 01:09:57,009 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-24 01:09:57,010 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 01:09:57,010 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 01:09:57,011 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 01:09:57,011 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:09:28" (3/4) ... [2024-11-24 01:09:57,014 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-24 01:09:57,020 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _torture_stop_kthread [2024-11-24 01:09:57,020 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kfree [2024-11-24 01:09:57,021 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure torture_lock_busted_write_delay [2024-11-24 01:09:57,021 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2024-11-24 01:09:57,021 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure torture_lock_spin_write_unlock_irq [2024-11-24 01:09:57,021 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __const_udelay [2024-11-24 01:09:57,021 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2024-11-24 01:09:57,021 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure torture_lock_busted_write_lock [2024-11-24 01:09:57,021 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kmalloc [2024-11-24 01:09:57,021 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure torture_random [2024-11-24 01:09:57,021 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_stop [2024-11-24 01:09:57,021 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure lock_torture_stats_print [2024-11-24 01:09:57,021 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure torture_lock_busted_write_unlock [2024-11-24 01:09:57,022 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure lock_torture_print_module_parms [2024-11-24 01:09:57,022 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure torture_spin_lock_write_delay [2024-11-24 01:09:57,022 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure lock_torture_cleanup [2024-11-24 01:09:57,022 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure torture_init_end [2024-11-24 01:09:57,022 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-24 01:09:57,022 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_spin_unlock [2024-11-24 01:09:57,022 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_spin_lock [2024-11-24 01:09:57,022 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure torture_spin_lock_write_lock_irq [2024-11-24 01:09:57,022 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-11-24 01:09:57,022 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _torture_create_kthread [2024-11-24 01:09:57,022 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure torture_spin_lock_write_lock [2024-11-24 01:09:57,022 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ##fun~~TO~VOID [2024-11-24 01:09:57,022 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_zalloc [2024-11-24 01:09:57,023 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure torture_spin_lock_write_unlock [2024-11-24 01:09:57,023 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_check_alloc_flags [2024-11-24 01:09:57,041 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 109 nodes and edges [2024-11-24 01:09:57,043 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2024-11-24 01:09:57,044 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-24 01:09:57,046 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-24 01:09:57,047 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-24 01:09:57,048 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 01:09:57,050 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 01:09:57,267 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30daf569-7f9a-402e-9d80-b45f5bba377d/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-24 01:09:57,267 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30daf569-7f9a-402e-9d80-b45f5bba377d/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-24 01:09:57,267 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 01:09:57,268 INFO L158 Benchmark]: Toolchain (without parser) took 32391.58ms. Allocated memory was 117.4MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 81.8MB in the beginning and 924.4MB in the end (delta: -842.5MB). Peak memory consumption was 489.0MB. Max. memory is 16.1GB. [2024-11-24 01:09:57,269 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 167.8MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:09:57,270 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1171.35ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 34.9MB in the end (delta: 46.6MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-24 01:09:57,270 INFO L158 Benchmark]: Boogie Procedure Inliner took 120.42ms. Allocated memory is still 117.4MB. Free memory was 34.9MB in the beginning and 29.3MB in the end (delta: 5.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 01:09:57,270 INFO L158 Benchmark]: Boogie Preprocessor took 182.91ms. Allocated memory is still 117.4MB. Free memory was 29.3MB in the beginning and 70.7MB in the end (delta: -41.5MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. [2024-11-24 01:09:57,271 INFO L158 Benchmark]: RCFGBuilder took 1986.03ms. Allocated memory was 117.4MB in the beginning and 302.0MB in the end (delta: 184.5MB). Free memory was 70.7MB in the beginning and 222.4MB in the end (delta: -151.7MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2024-11-24 01:09:57,272 INFO L158 Benchmark]: TraceAbstraction took 28664.99ms. Allocated memory was 302.0MB in the beginning and 1.5GB in the end (delta: 1.1GB). Free memory was 221.6MB in the beginning and 941.2MB in the end (delta: -719.6MB). Peak memory consumption was 828.8MB. Max. memory is 16.1GB. [2024-11-24 01:09:57,272 INFO L158 Benchmark]: Witness Printer took 257.30ms. Allocated memory is still 1.5GB. Free memory was 941.2MB in the beginning and 924.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 01:09:57,274 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 167.8MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1171.35ms. Allocated memory is still 117.4MB. Free memory was 81.5MB in the beginning and 34.9MB in the end (delta: 46.6MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 120.42ms. Allocated memory is still 117.4MB. Free memory was 34.9MB in the beginning and 29.3MB in the end (delta: 5.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 182.91ms. Allocated memory is still 117.4MB. Free memory was 29.3MB in the beginning and 70.7MB in the end (delta: -41.5MB). Peak memory consumption was 16.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1986.03ms. Allocated memory was 117.4MB in the beginning and 302.0MB in the end (delta: 184.5MB). Free memory was 70.7MB in the beginning and 222.4MB in the end (delta: -151.7MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * TraceAbstraction took 28664.99ms. Allocated memory was 302.0MB in the beginning and 1.5GB in the end (delta: 1.1GB). Free memory was 221.6MB in the beginning and 941.2MB in the end (delta: -719.6MB). Peak memory consumption was 828.8MB. Max. memory is 16.1GB. * Witness Printer took 257.30ms. Allocated memory is still 1.5GB. Free memory was 941.2MB in the beginning and 924.4MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 1855]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [1855] - GenericResultAtLocation [Line: 1858]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [1858] - GenericResultAtLocation [Line: 1861]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [1861] - GenericResultAtLocation [Line: 1864]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [1864] - GenericResultAtLocation [Line: 1902]: 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)); [1902] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~lwsa~0!base - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~lwsa~0!offset * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 2013]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 29 procedures, 373 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 20.3s, OverallIterations: 16, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4833 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4828 mSDsluCounter, 17213 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8498 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 392 IncrementalHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 8715 mSDtfsCounter, 392 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 332 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20152occurred in iteration=13, InterpolantAutomatonStates: 56, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.5s AutomataMinimizationTime, 16 MinimizatonAttempts, 368 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 1975 NumberOfCodeBlocks, 1975 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1957 ConstructedInterpolants, 0 QuantifiedInterpolants, 2757 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2187 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 18 InterpolantComputations, 16 PerfectInterpolantSequences, 504/530 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 2303]: Loop Invariant Derived loop invariant: (ldv_spin == 0) - InvariantResult [Line: 2142]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 2096]: Location Invariant Derived location invariant: (((((((ldv_state_variable_0 == 1) && (onoff_interval == 0)) && (ldv_state_variable_2 == 0)) && (ldv_spin == 0)) && (ldv_state_variable_1 == 0)) && (((long) nwriters_stress + 1) <= 0)) || ((((((onoff_interval == 0) && (ldv_state_variable_2 == 0)) && (ldv_spin == 0)) && (ldv_state_variable_1 == 0)) && (((long) nwriters_stress + 1) <= 0)) && (ldv_state_variable_0 == 3))) - InvariantResult [Line: 2425]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 2301]: Loop Invariant Derived loop invariant: (ldv_spin == 0) - InvariantResult [Line: 2383]: Location Invariant Derived location invariant: (ldv_spin == 0) - InvariantResult [Line: 2581]: Location Invariant Derived location invariant: ((((ldv_state_variable_0 == 1) && (ldv_spin == 0)) && (((long) firsterr + 12) <= 0)) && (((long) nwriters_stress + 1) <= 0)) RESULT: Ultimate proved your program to be correct! [2024-11-24 01:09:57,300 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_30daf569-7f9a-402e-9d80-b45f5bba377d/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE