./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-drivers--tty--isicom.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1 --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 6f86833868c5bd8f52db116e0dc9a6adcf67c5a3282a5f6499cc1c794678520b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:46:55,021 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:46:55,093 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 08:46:55,098 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:46:55,099 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:46:55,125 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:46:55,126 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:46:55,126 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:46:55,126 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:46:55,127 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:46:55,127 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:46:55,127 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:46:55,127 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:46:55,127 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:46:55,128 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:46:55,128 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:46:55,128 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:46:55,128 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:46:55,128 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:46:55,128 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:46:55,128 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:46:55,128 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:46:55,129 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:46:55,129 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:46:55,129 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:46:55,129 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:46:55,129 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:46:55,129 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:46:55,129 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:46:55,129 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:46:55,129 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:46:55,130 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:46:55,130 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:46:55,130 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:46:55,130 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:46:55,130 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:46:55,130 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:46:55,130 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:46:55,130 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:46:55,130 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:46:55,130 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:46:55,131 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:46:55,131 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:46:55,131 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:46:55,131 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:46:55,131 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_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1 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 -> 6f86833868c5bd8f52db116e0dc9a6adcf67c5a3282a5f6499cc1c794678520b [2024-12-02 08:46:55,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:46:55,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:46:55,430 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:46:55,431 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:46:55,431 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:46:55,432 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i [2024-12-02 08:46:58,510 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/data/c4e572f0b/a6c02d4743874772b857f14ec18d1622/FLAGf4d162206 [2024-12-02 08:46:58,956 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:46:58,957 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i [2024-12-02 08:46:58,992 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/data/c4e572f0b/a6c02d4743874772b857f14ec18d1622/FLAGf4d162206 [2024-12-02 08:46:59,011 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/data/c4e572f0b/a6c02d4743874772b857f14ec18d1622 [2024-12-02 08:46:59,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:46:59,016 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:46:59,018 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:46:59,018 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:46:59,024 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:46:59,025 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:46:59" (1/1) ... [2024-12-02 08:46:59,026 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20f5ec47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:46:59, skipping insertion in model container [2024-12-02 08:46:59,026 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:46:59" (1/1) ... [2024-12-02 08:46:59,119 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:46:59,503 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3602] [2024-12-02 08:46:59,503 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3603-3604] [2024-12-02 08:46:59,742 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_6bf04bf8-b806-48bf-aea0-4fd7597637ce/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i[110145,110158] [2024-12-02 08:47:00,463 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:47:00,999 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:47:01,101 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3602] [2024-12-02 08:47:01,102 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3603-3604] [2024-12-02 08:47:01,106 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [3705] [2024-12-02 08:47:01,108 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [3708] [2024-12-02 08:47:01,108 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [3711] [2024-12-02 08:47:01,108 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [3714] [2024-12-02 08:47:01,111 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [3768] [2024-12-02 08:47:01,111 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inw %w1, %w0": "=a" (value): "Nd" (port)); [3776] [2024-12-02 08:47:01,112 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; outsw": "+S" (addr), "+c" (count): "d" (port)); [3783] [2024-12-02 08:47:01,112 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; insw": "+D" (addr), "+c" (count): "d" (port)); [3790] [2024-12-02 08:47:01,116 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_6bf04bf8-b806-48bf-aea0-4fd7597637ce/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i[110145,110158] [2024-12-02 08:47:01,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:47:01,550 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:47:01,551 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:47:01 WrapperNode [2024-12-02 08:47:01,551 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:47:01,553 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:47:01,553 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:47:01,553 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:47:01,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:47:01" (1/1) ... [2024-12-02 08:47:01,671 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:47:01" (1/1) ... [2024-12-02 08:47:02,218 INFO L138 Inliner]: procedures = 199, calls = 11545, calls flagged for inlining = 96, calls inlined = 94, statements flattened = 14435 [2024-12-02 08:47:02,219 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:47:02,220 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:47:02,220 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:47:02,220 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:47:02,229 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:47:01" (1/1) ... [2024-12-02 08:47:02,230 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:47:01" (1/1) ... [2024-12-02 08:47:02,345 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:47:01" (1/1) ... [2024-12-02 08:47:02,585 INFO L175 MemorySlicer]: Split 10890 memory accesses to 25 slices as follows [42, 8, 1, 23, 35, 10390, 63, 8, 6, 26, 14, 1, 3, 2, 7, 4, 2, 33, 117, 63, 7, 7, 7, 14, 7]. 95 percent of accesses are in the largest equivalence class. The 10124 initializations are split as follows [0, 0, 0, 0, 0, 10017, 0, 0, 0, 0, 14, 0, 0, 2, 0, 0, 0, 0, 0, 63, 7, 7, 7, 0, 7]. The 414 writes are split as follows [42, 8, 0, 21, 35, 160, 54, 0, 0, 0, 0, 0, 1, 0, 0, 2, 1, 33, 45, 0, 0, 0, 0, 12, 0]. [2024-12-02 08:47:02,585 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:47:01" (1/1) ... [2024-12-02 08:47:02,586 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:47:01" (1/1) ... [2024-12-02 08:47:02,868 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:47:01" (1/1) ... [2024-12-02 08:47:02,884 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:47:01" (1/1) ... [2024-12-02 08:47:02,907 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:47:01" (1/1) ... [2024-12-02 08:47:02,935 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:47:01" (1/1) ... [2024-12-02 08:47:02,955 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:47:01" (1/1) ... [2024-12-02 08:47:03,020 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:47:03,020 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:47:03,021 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:47:03,021 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:47:03,021 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:47:01" (1/1) ... [2024-12-02 08:47:03,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:47:03,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:47:03,044 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:47:03,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:47:03,066 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_start [2024-12-02 08:47:03,067 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_start [2024-12-02 08:47:03,067 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_set_termios [2024-12-02 08:47:03,067 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_set_termios [2024-12-02 08:47:03,067 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2024-12-02 08:47:03,067 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2024-12-02 08:47:03,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-12-02 08:47:03,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-12-02 08:47:03,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-12-02 08:47:03,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-12-02 08:47:03,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-12-02 08:47:03,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-12-02 08:47:03,067 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-12-02 08:47:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-12-02 08:47:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-12-02 08:47:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2024-12-02 08:47:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2024-12-02 08:47:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2024-12-02 08:47:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2024-12-02 08:47:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2024-12-02 08:47:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#14 [2024-12-02 08:47:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#15 [2024-12-02 08:47:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#16 [2024-12-02 08:47:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#17 [2024-12-02 08:47:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#18 [2024-12-02 08:47:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#19 [2024-12-02 08:47:03,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#20 [2024-12-02 08:47:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#21 [2024-12-02 08:47:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#22 [2024-12-02 08:47:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#23 [2024-12-02 08:47:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#24 [2024-12-02 08:47:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 08:47:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 08:47:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 08:47:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 08:47:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 08:47:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 08:47:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 08:47:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 08:47:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-12-02 08:47:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-12-02 08:47:03,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-12-02 08:47:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-12-02 08:47:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-12-02 08:47:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-12-02 08:47:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-12-02 08:47:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2024-12-02 08:47:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2024-12-02 08:47:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2024-12-02 08:47:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2024-12-02 08:47:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#19 [2024-12-02 08:47:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#20 [2024-12-02 08:47:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#21 [2024-12-02 08:47:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#22 [2024-12-02 08:47:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#23 [2024-12-02 08:47:03,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#24 [2024-12-02 08:47:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-12-02 08:47:03,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-12-02 08:47:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure tty_kref_put [2024-12-02 08:47:03,071 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_kref_put [2024-12-02 08:47:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2024-12-02 08:47:03,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2024-12-02 08:47:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_tiocmset [2024-12-02 08:47:03,071 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_tiocmset [2024-12-02 08:47:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_3 [2024-12-02 08:47:03,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_3 [2024-12-02 08:47:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-12-02 08:47:03,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-12-02 08:47:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_region [2024-12-02 08:47:03,071 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_region [2024-12-02 08:47:03,071 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2024-12-02 08:47:03,072 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2024-12-02 08:47:03,072 INFO L130 BoogieDeclarations]: Found specification of procedure raise_dtr [2024-12-02 08:47:03,072 INFO L138 BoogieDeclarations]: Found implementation of procedure raise_dtr [2024-12-02 08:47:03,072 INFO L130 BoogieDeclarations]: Found specification of procedure tty_flip_buffer_push [2024-12-02 08:47:03,072 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_flip_buffer_push [2024-12-02 08:47:03,072 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_chars_in_buffer [2024-12-02 08:47:03,072 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_chars_in_buffer [2024-12-02 08:47:03,072 INFO L130 BoogieDeclarations]: Found specification of procedure tty_insert_flip_char [2024-12-02 08:47:03,072 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_insert_flip_char [2024-12-02 08:47:03,072 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2024-12-02 08:47:03,072 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2024-12-02 08:47:03,072 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_flush_buffer [2024-12-02 08:47:03,072 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_flush_buffer [2024-12-02 08:47:03,072 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-12-02 08:47:03,072 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-12-02 08:47:03,072 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-12-02 08:47:03,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-12-02 08:47:03,073 INFO L130 BoogieDeclarations]: Found specification of procedure outsw [2024-12-02 08:47:03,073 INFO L138 BoogieDeclarations]: Found implementation of procedure outsw [2024-12-02 08:47:03,073 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 08:47:03,073 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 08:47:03,073 INFO L130 BoogieDeclarations]: Found specification of procedure insw [2024-12-02 08:47:03,073 INFO L138 BoogieDeclarations]: Found implementation of procedure insw [2024-12-02 08:47:03,073 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_put_char [2024-12-02 08:47:03,073 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_put_char [2024-12-02 08:47:03,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 08:47:03,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 08:47:03,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 08:47:03,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 08:47:03,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 08:47:03,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 08:47:03,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 08:47:03,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 08:47:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 08:47:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-12-02 08:47:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-12-02 08:47:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-12-02 08:47:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-12-02 08:47:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-12-02 08:47:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-12-02 08:47:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-12-02 08:47:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-12-02 08:47:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-12-02 08:47:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-12-02 08:47:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-12-02 08:47:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-12-02 08:47:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2024-12-02 08:47:03,074 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#21 [2024-12-02 08:47:03,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#22 [2024-12-02 08:47:03,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#23 [2024-12-02 08:47:03,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#24 [2024-12-02 08:47:03,075 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2024-12-02 08:47:03,075 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2024-12-02 08:47:03,075 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_write_room [2024-12-02 08:47:03,075 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_write_room [2024-12-02 08:47:03,075 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_ioctl [2024-12-02 08:47:03,075 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_ioctl [2024-12-02 08:47:03,075 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2024-12-02 08:47:03,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2024-12-02 08:47:03,075 INFO L130 BoogieDeclarations]: Found specification of procedure drop_dtr [2024-12-02 08:47:03,075 INFO L138 BoogieDeclarations]: Found implementation of procedure drop_dtr [2024-12-02 08:47:03,075 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-12-02 08:47:03,076 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-12-02 08:47:03,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 08:47:03,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 08:47:03,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 08:47:03,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 08:47:03,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 08:47:03,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 08:47:03,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 08:47:03,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-12-02 08:47:03,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-12-02 08:47:03,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-12-02 08:47:03,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-12-02 08:47:03,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-12-02 08:47:03,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-12-02 08:47:03,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-12-02 08:47:03,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-12-02 08:47:03,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-12-02 08:47:03,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-12-02 08:47:03,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-12-02 08:47:03,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-12-02 08:47:03,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-12-02 08:47:03,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2024-12-02 08:47:03,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2024-12-02 08:47:03,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#21 [2024-12-02 08:47:03,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#22 [2024-12-02 08:47:03,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#23 [2024-12-02 08:47:03,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#24 [2024-12-02 08:47:03,077 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-12-02 08:47:03,077 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-12-02 08:47:03,077 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-12-02 08:47:03,077 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-12-02 08:47:03,077 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-12-02 08:47:03,077 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-12-02 08:47:03,077 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2024-12-02 08:47:03,077 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2024-12-02 08:47:03,077 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2024-12-02 08:47:03,078 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2024-12-02 08:47:03,078 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2024-12-02 08:47:03,078 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2024-12-02 08:47:03,078 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_get [2024-12-02 08:47:03,078 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_get [2024-12-02 08:47:03,078 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-12-02 08:47:03,078 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-12-02 08:47:03,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-12-02 08:47:03,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-12-02 08:47:03,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-12-02 08:47:03,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-12-02 08:47:03,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-12-02 08:47:03,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-12-02 08:47:03,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-12-02 08:47:03,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-12-02 08:47:03,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-12-02 08:47:03,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2024-12-02 08:47:03,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2024-12-02 08:47:03,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2024-12-02 08:47:03,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2024-12-02 08:47:03,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2024-12-02 08:47:03,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#14 [2024-12-02 08:47:03,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#15 [2024-12-02 08:47:03,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#16 [2024-12-02 08:47:03,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#17 [2024-12-02 08:47:03,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#18 [2024-12-02 08:47:03,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#19 [2024-12-02 08:47:03,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#20 [2024-12-02 08:47:03,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#21 [2024-12-02 08:47:03,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#22 [2024-12-02 08:47:03,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#23 [2024-12-02 08:47:03,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#24 [2024-12-02 08:47:03,079 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_dtr_rts [2024-12-02 08:47:03,079 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_dtr_rts [2024-12-02 08:47:03,079 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-12-02 08:47:03,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-12-02 08:47:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-12-02 08:47:03,080 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-12-02 08:47:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_config_port [2024-12-02 08:47:03,080 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_config_port [2024-12-02 08:47:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 08:47:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 08:47:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 08:47:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 08:47:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 08:47:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 08:47:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 08:47:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-02 08:47:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-12-02 08:47:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-12-02 08:47:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-12-02 08:47:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-12-02 08:47:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-12-02 08:47:03,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-12-02 08:47:03,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-12-02 08:47:03,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-12-02 08:47:03,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2024-12-02 08:47:03,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2024-12-02 08:47:03,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2024-12-02 08:47:03,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2024-12-02 08:47:03,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#20 [2024-12-02 08:47:03,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#21 [2024-12-02 08:47:03,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#22 [2024-12-02 08:47:03,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#23 [2024-12-02 08:47:03,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#24 [2024-12-02 08:47:03,081 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2024-12-02 08:47:03,081 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2024-12-02 08:47:03,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 08:47:03,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 08:47:03,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 08:47:03,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 08:47:03,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 08:47:03,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 08:47:03,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 08:47:03,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 08:47:03,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 08:47:03,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-12-02 08:47:03,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-12-02 08:47:03,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-12-02 08:47:03,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-12-02 08:47:03,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-12-02 08:47:03,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-12-02 08:47:03,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-12-02 08:47:03,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-12-02 08:47:03,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-12-02 08:47:03,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-12-02 08:47:03,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-12-02 08:47:03,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2024-12-02 08:47:03,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2024-12-02 08:47:03,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2024-12-02 08:47:03,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2024-12-02 08:47:03,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2024-12-02 08:47:03,083 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_tiocmget [2024-12-02 08:47:03,083 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_tiocmget [2024-12-02 08:47:03,083 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_unthrottle [2024-12-02 08:47:03,083 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_unthrottle [2024-12-02 08:47:03,083 INFO L130 BoogieDeclarations]: Found specification of procedure lock_card [2024-12-02 08:47:03,083 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_card [2024-12-02 08:47:03,083 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_flush_chars [2024-12-02 08:47:03,083 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_flush_chars [2024-12-02 08:47:03,083 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-12-02 08:47:03,083 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-12-02 08:47:03,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 08:47:03,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 08:47:03,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 08:47:03,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 08:47:03,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 08:47:03,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 08:47:03,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 08:47:03,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 08:47:03,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 08:47:03,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-12-02 08:47:03,083 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-12-02 08:47:03,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-12-02 08:47:03,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-12-02 08:47:03,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-12-02 08:47:03,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-12-02 08:47:03,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-12-02 08:47:03,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-12-02 08:47:03,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-12-02 08:47:03,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-12-02 08:47:03,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-12-02 08:47:03,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2024-12-02 08:47:03,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2024-12-02 08:47:03,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2024-12-02 08:47:03,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2024-12-02 08:47:03,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2024-12-02 08:47:03,084 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2024-12-02 08:47:03,084 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2024-12-02 08:47:03,084 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2024-12-02 08:47:03,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2024-12-02 08:47:03,084 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2024-12-02 08:47:03,084 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2024-12-02 08:47:03,085 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2024-12-02 08:47:03,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2024-12-02 08:47:03,085 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-12-02 08:47:03,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-12-02 08:47:03,085 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_carrier_raised [2024-12-02 08:47:03,085 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_carrier_raised [2024-12-02 08:47:03,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 08:47:03,085 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_hangup [2024-12-02 08:47:03,085 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_hangup [2024-12-02 08:47:03,085 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_throttle [2024-12-02 08:47:03,085 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_throttle [2024-12-02 08:47:03,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:47:03,085 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2024-12-02 08:47:03,085 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2024-12-02 08:47:03,085 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-12-02 08:47:03,085 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-12-02 08:47:03,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 08:47:03,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 08:47:03,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 08:47:03,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 08:47:03,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 08:47:03,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 08:47:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 08:47:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 08:47:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-12-02 08:47:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-12-02 08:47:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-12-02 08:47:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-12-02 08:47:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-12-02 08:47:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-12-02 08:47:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-12-02 08:47:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-12-02 08:47:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-12-02 08:47:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-12-02 08:47:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-12-02 08:47:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-12-02 08:47:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2024-12-02 08:47:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#21 [2024-12-02 08:47:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#22 [2024-12-02 08:47:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#23 [2024-12-02 08:47:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#24 [2024-12-02 08:47:03,086 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2024-12-02 08:47:03,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2024-12-02 08:47:03,087 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2024-12-02 08:47:03,087 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2024-12-02 08:47:03,087 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2024-12-02 08:47:03,087 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2024-12-02 08:47:03,087 INFO L130 BoogieDeclarations]: Found specification of procedure unlock_card [2024-12-02 08:47:03,087 INFO L138 BoogieDeclarations]: Found implementation of procedure unlock_card [2024-12-02 08:47:03,087 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2024-12-02 08:47:03,087 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2024-12-02 08:47:03,087 INFO L130 BoogieDeclarations]: Found specification of procedure isicom_send_break [2024-12-02 08:47:03,087 INFO L138 BoogieDeclarations]: Found implementation of procedure isicom_send_break [2024-12-02 08:47:03,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:47:03,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 08:47:03,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 08:47:03,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 08:47:03,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 08:47:03,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 08:47:03,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 08:47:03,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 08:47:03,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 08:47:03,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 08:47:03,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 08:47:03,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 08:47:03,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 08:47:03,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 08:47:03,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 08:47:03,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-12-02 08:47:03,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-12-02 08:47:03,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-12-02 08:47:03,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-12-02 08:47:03,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-12-02 08:47:03,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2024-12-02 08:47:03,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2024-12-02 08:47:03,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2024-12-02 08:47:03,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2024-12-02 08:47:03,089 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2024-12-02 08:47:03,089 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2024-12-02 08:47:03,089 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2024-12-02 08:47:03,089 INFO L130 BoogieDeclarations]: Found specification of procedure WaitTillCardIsFree [2024-12-02 08:47:03,089 INFO L138 BoogieDeclarations]: Found implementation of procedure WaitTillCardIsFree [2024-12-02 08:47:03,089 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:47:03,089 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:47:03,089 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2024-12-02 08:47:03,089 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2024-12-02 08:47:03,089 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-12-02 08:47:03,089 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-12-02 08:47:03,768 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:47:03,771 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:47:03,854 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-12-02 08:48:12,395 INFO L? ?]: Removed 1643 outVars from TransFormulas that were not future-live. [2024-12-02 08:48:12,395 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:48:12,443 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:48:12,444 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 08:48:12,444 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:48:12 BoogieIcfgContainer [2024-12-02 08:48:12,444 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:48:12,446 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:48:12,447 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:48:12,451 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:48:12,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:46:59" (1/3) ... [2024-12-02 08:48:12,452 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@239a5f7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:48:12, skipping insertion in model container [2024-12-02 08:48:12,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:47:01" (2/3) ... [2024-12-02 08:48:12,452 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@239a5f7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:48:12, skipping insertion in model container [2024-12-02 08:48:12,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:48:12" (3/3) ... [2024-12-02 08:48:12,453 INFO L128 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i [2024-12-02 08:48:12,469 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:48:12,471 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--isicom.ko-entry_point.cil.out.i that has 68 procedures, 1789 locations, 1 initial locations, 3 loop locations, and 1 error locations. [2024-12-02 08:48:12,584 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:48:12,602 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;@7fcc8632, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:48:12,603 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:48:12,613 INFO L276 IsEmpty]: Start isEmpty. Operand has 1788 states, 1363 states have (on average 1.441672780630961) internal successors, (1965), 1394 states have internal predecessors, (1965), 358 states have call successors, (358), 67 states have call predecessors, (358), 66 states have return successors, (350), 348 states have call predecessors, (350), 350 states have call successors, (350) [2024-12-02 08:48:12,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-12-02 08:48:12,665 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:48:12,666 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 4, 4, 4, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:48:12,666 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:48:12,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:48:12,671 INFO L85 PathProgramCache]: Analyzing trace with hash 560380265, now seen corresponding path program 1 times [2024-12-02 08:48:12,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:48:12,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969083178] [2024-12-02 08:48:12,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:48:12,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:48:41,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:48:43,489 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2024-12-02 08:48:43,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:48:43,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969083178] [2024-12-02 08:48:43,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969083178] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:48:43,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:48:43,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:48:43,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676088050] [2024-12-02 08:48:43,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:48:43,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:48:43,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:48:43,524 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:48:43,524 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:48:43,531 INFO L87 Difference]: Start difference. First operand has 1788 states, 1363 states have (on average 1.441672780630961) internal successors, (1965), 1394 states have internal predecessors, (1965), 358 states have call successors, (358), 67 states have call predecessors, (358), 66 states have return successors, (350), 348 states have call predecessors, (350), 350 states have call successors, (350) Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-12-02 08:48:44,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:48:44,811 INFO L93 Difference]: Finished difference Result 5057 states and 7687 transitions. [2024-12-02 08:48:44,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:48:44,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 203 [2024-12-02 08:48:44,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:48:44,855 INFO L225 Difference]: With dead ends: 5057 [2024-12-02 08:48:44,855 INFO L226 Difference]: Without dead ends: 3233 [2024-12-02 08:48:44,875 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 [2024-12-02 08:48:44,879 INFO L435 NwaCegarLoop]: 2632 mSDtfsCounter, 2206 mSDsluCounter, 2609 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2206 SdHoareTripleChecker+Valid, 5241 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:48:44,879 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2206 Valid, 5241 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 08:48:44,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3233 states. [2024-12-02 08:48:45,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3233 to 3233. [2024-12-02 08:48:45,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3233 states, 2504 states have (on average 1.4213258785942493) internal successors, (3559), 2544 states have internal predecessors, (3559), 608 states have call successors, (608), 121 states have call predecessors, (608), 120 states have return successors, (607), 603 states have call predecessors, (607), 607 states have call successors, (607) [2024-12-02 08:48:45,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3233 states to 3233 states and 4774 transitions. [2024-12-02 08:48:45,156 INFO L78 Accepts]: Start accepts. Automaton has 3233 states and 4774 transitions. Word has length 203 [2024-12-02 08:48:45,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:48:45,157 INFO L471 AbstractCegarLoop]: Abstraction has 3233 states and 4774 transitions. [2024-12-02 08:48:45,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-12-02 08:48:45,157 INFO L276 IsEmpty]: Start isEmpty. Operand 3233 states and 4774 transitions. [2024-12-02 08:48:45,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-12-02 08:48:45,193 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:48:45,193 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 6, 6, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:48:45,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 08:48:45,194 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:48:45,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:48:45,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1921456431, now seen corresponding path program 1 times [2024-12-02 08:48:45,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:48:45,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923734965] [2024-12-02 08:48:45,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:48:45,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:49:15,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:49:17,991 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2024-12-02 08:49:17,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:49:17,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923734965] [2024-12-02 08:49:17,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923734965] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:49:17,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:49:17,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:49:17,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869189823] [2024-12-02 08:49:17,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:49:17,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:49:17,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:49:17,995 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:49:17,995 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:49:17,995 INFO L87 Difference]: Start difference. First operand 3233 states and 4774 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-12-02 08:49:18,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:49:18,290 INFO L93 Difference]: Finished difference Result 6458 states and 9537 transitions. [2024-12-02 08:49:18,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:49:18,291 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 263 [2024-12-02 08:49:18,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:49:18,317 INFO L225 Difference]: With dead ends: 6458 [2024-12-02 08:49:18,318 INFO L226 Difference]: Without dead ends: 3245 [2024-12-02 08:49:18,333 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 [2024-12-02 08:49:18,334 INFO L435 NwaCegarLoop]: 2597 mSDtfsCounter, 6 mSDsluCounter, 2594 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 5191 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:49:18,335 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 5191 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:49:18,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3245 states. [2024-12-02 08:49:18,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3245 to 3235. [2024-12-02 08:49:18,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3235 states, 2506 states have (on average 1.4209896249002394) internal successors, (3561), 2546 states have internal predecessors, (3561), 608 states have call successors, (608), 121 states have call predecessors, (608), 120 states have return successors, (607), 603 states have call predecessors, (607), 607 states have call successors, (607) [2024-12-02 08:49:18,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3235 states to 3235 states and 4776 transitions. [2024-12-02 08:49:18,496 INFO L78 Accepts]: Start accepts. Automaton has 3235 states and 4776 transitions. Word has length 263 [2024-12-02 08:49:18,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:49:18,496 INFO L471 AbstractCegarLoop]: Abstraction has 3235 states and 4776 transitions. [2024-12-02 08:49:18,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-12-02 08:49:18,497 INFO L276 IsEmpty]: Start isEmpty. Operand 3235 states and 4776 transitions. [2024-12-02 08:49:18,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2024-12-02 08:49:18,523 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:49:18,524 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 6, 6, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:49:18,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:49:18,524 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:49:18,525 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:49:18,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1465942537, now seen corresponding path program 1 times [2024-12-02 08:49:18,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:49:18,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654228051] [2024-12-02 08:49:18,525 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:49:18,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:49:42,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:49:43,687 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2024-12-02 08:49:43,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:49:43,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654228051] [2024-12-02 08:49:43,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654228051] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:49:43,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:49:43,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:49:43,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520548237] [2024-12-02 08:49:43,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:49:43,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:49:43,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:49:43,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:49:43,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:49:43,690 INFO L87 Difference]: Start difference. First operand 3235 states and 4776 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-12-02 08:49:43,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:49:43,894 INFO L93 Difference]: Finished difference Result 6454 states and 9531 transitions. [2024-12-02 08:49:43,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:49:43,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 268 [2024-12-02 08:49:43,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:49:43,919 INFO L225 Difference]: With dead ends: 6454 [2024-12-02 08:49:43,919 INFO L226 Difference]: Without dead ends: 3239 [2024-12-02 08:49:43,934 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 [2024-12-02 08:49:43,938 INFO L435 NwaCegarLoop]: 2600 mSDtfsCounter, 1 mSDsluCounter, 2596 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 5196 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:49:43,938 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 5196 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:49:43,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3239 states. [2024-12-02 08:49:44,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3239 to 3237. [2024-12-02 08:49:44,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3237 states, 2508 states have (on average 1.4206539074960127) internal successors, (3563), 2548 states have internal predecessors, (3563), 608 states have call successors, (608), 121 states have call predecessors, (608), 120 states have return successors, (607), 603 states have call predecessors, (607), 607 states have call successors, (607) [2024-12-02 08:49:44,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3237 states to 3237 states and 4778 transitions. [2024-12-02 08:49:44,076 INFO L78 Accepts]: Start accepts. Automaton has 3237 states and 4778 transitions. Word has length 268 [2024-12-02 08:49:44,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:49:44,076 INFO L471 AbstractCegarLoop]: Abstraction has 3237 states and 4778 transitions. [2024-12-02 08:49:44,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 3 states have internal predecessors, (135), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-12-02 08:49:44,076 INFO L276 IsEmpty]: Start isEmpty. Operand 3237 states and 4778 transitions. [2024-12-02 08:49:44,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-12-02 08:49:44,100 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:49:44,101 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 6, 6, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:49:44,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 08:49:44,101 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:49:44,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:49:44,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1539362573, now seen corresponding path program 1 times [2024-12-02 08:49:44,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:49:44,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188475942] [2024-12-02 08:49:44,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:49:44,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:50:08,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:50:09,927 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2024-12-02 08:50:09,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:50:09,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188475942] [2024-12-02 08:50:09,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188475942] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:50:09,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1660202853] [2024-12-02 08:50:09,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:09,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:50:09,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:50:09,930 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:50:09,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:50:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:50:38,760 INFO L256 TraceCheckSpWp]: Trace formula consists of 35198 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 08:50:38,778 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:50:38,864 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2024-12-02 08:50:38,864 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:50:38,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1660202853] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:50:38,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:50:38,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-12-02 08:50:38,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639534886] [2024-12-02 08:50:38,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:50:38,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:50:38,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:50:38,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:50:38,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:50:38,866 INFO L87 Difference]: Start difference. First operand 3237 states and 4778 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-12-02 08:50:39,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:50:39,028 INFO L93 Difference]: Finished difference Result 6454 states and 9596 transitions. [2024-12-02 08:50:39,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:50:39,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 270 [2024-12-02 08:50:39,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:50:39,050 INFO L225 Difference]: With dead ends: 6454 [2024-12-02 08:50:39,050 INFO L226 Difference]: Without dead ends: 3237 [2024-12-02 08:50:39,064 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:50:39,065 INFO L435 NwaCegarLoop]: 2596 mSDtfsCounter, 0 mSDsluCounter, 2589 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5185 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:50:39,065 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5185 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:50:39,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3237 states. [2024-12-02 08:50:39,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3237 to 3237. [2024-12-02 08:50:39,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3237 states, 2508 states have (on average 1.418261562998405) internal successors, (3557), 2548 states have internal predecessors, (3557), 608 states have call successors, (608), 121 states have call predecessors, (608), 120 states have return successors, (607), 603 states have call predecessors, (607), 607 states have call successors, (607) [2024-12-02 08:50:39,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3237 states to 3237 states and 4772 transitions. [2024-12-02 08:50:39,184 INFO L78 Accepts]: Start accepts. Automaton has 3237 states and 4772 transitions. Word has length 270 [2024-12-02 08:50:39,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:50:39,184 INFO L471 AbstractCegarLoop]: Abstraction has 3237 states and 4772 transitions. [2024-12-02 08:50:39,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-12-02 08:50:39,185 INFO L276 IsEmpty]: Start isEmpty. Operand 3237 states and 4772 transitions. [2024-12-02 08:50:39,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2024-12-02 08:50:39,204 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:50:39,205 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:50:39,294 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:50:39,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:50:39,405 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:50:39,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:50:39,406 INFO L85 PathProgramCache]: Analyzing trace with hash -55086653, now seen corresponding path program 1 times [2024-12-02 08:50:39,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:50:39,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630553740] [2024-12-02 08:50:39,406 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:50:39,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:51:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:51:02,137 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2024-12-02 08:51:02,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:51:02,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630553740] [2024-12-02 08:51:02,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630553740] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:51:02,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1019513137] [2024-12-02 08:51:02,138 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:51:02,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:51:02,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:51:02,140 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:51:02,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 08:51:28,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:51:28,179 INFO L256 TraceCheckSpWp]: Trace formula consists of 35206 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 08:51:28,199 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:51:28,265 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2024-12-02 08:51:28,265 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:51:28,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1019513137] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:51:28,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:51:28,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-12-02 08:51:28,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287066582] [2024-12-02 08:51:28,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:51:28,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:51:28,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:51:28,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:51:28,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:51:28,266 INFO L87 Difference]: Start difference. First operand 3237 states and 4772 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-12-02 08:51:28,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:51:28,353 INFO L93 Difference]: Finished difference Result 3241 states and 4776 transitions. [2024-12-02 08:51:28,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:51:28,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 274 [2024-12-02 08:51:28,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:51:28,371 INFO L225 Difference]: With dead ends: 3241 [2024-12-02 08:51:28,372 INFO L226 Difference]: Without dead ends: 3238 [2024-12-02 08:51:28,374 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:51:28,374 INFO L435 NwaCegarLoop]: 2598 mSDtfsCounter, 0 mSDsluCounter, 2592 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5190 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:51:28,375 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5190 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:51:28,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3238 states. [2024-12-02 08:51:28,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3238 to 3238. [2024-12-02 08:51:28,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3238 states, 2509 states have (on average 1.4180948585093662) internal successors, (3558), 2549 states have internal predecessors, (3558), 608 states have call successors, (608), 121 states have call predecessors, (608), 120 states have return successors, (607), 603 states have call predecessors, (607), 607 states have call successors, (607) [2024-12-02 08:51:28,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3238 states to 3238 states and 4773 transitions. [2024-12-02 08:51:28,485 INFO L78 Accepts]: Start accepts. Automaton has 3238 states and 4773 transitions. Word has length 274 [2024-12-02 08:51:28,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:51:28,486 INFO L471 AbstractCegarLoop]: Abstraction has 3238 states and 4773 transitions. [2024-12-02 08:51:28,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-12-02 08:51:28,487 INFO L276 IsEmpty]: Start isEmpty. Operand 3238 states and 4773 transitions. [2024-12-02 08:51:28,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-12-02 08:51:28,503 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:51:28,503 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 7, 7, 6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:51:28,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 08:51:28,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:51:28,704 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:51:28,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:51:28,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1377813385, now seen corresponding path program 1 times [2024-12-02 08:51:28,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:51:28,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632388745] [2024-12-02 08:51:28,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:51:28,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:51:49,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:51:51,282 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2024-12-02 08:51:51,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:51:51,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632388745] [2024-12-02 08:51:51,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632388745] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:51:51,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542789362] [2024-12-02 08:51:51,282 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:51:51,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:51:51,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:51:51,284 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:51:51,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 08:52:16,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:52:16,252 INFO L256 TraceCheckSpWp]: Trace formula consists of 35211 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:52:16,271 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:52:19,453 INFO L134 CoverageAnalysis]: Checked inductivity of 257 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2024-12-02 08:52:19,453 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:52:19,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542789362] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:52:19,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:52:19,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-12-02 08:52:19,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163611709] [2024-12-02 08:52:19,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:52:19,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:52:19,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:52:19,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:52:19,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:52:19,455 INFO L87 Difference]: Start difference. First operand 3238 states and 4773 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-12-02 08:52:19,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:52:19,680 INFO L93 Difference]: Finished difference Result 8206 states and 12180 transitions. [2024-12-02 08:52:19,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:52:19,681 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 276 [2024-12-02 08:52:19,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:52:19,707 INFO L225 Difference]: With dead ends: 8206 [2024-12-02 08:52:19,708 INFO L226 Difference]: Without dead ends: 4988 [2024-12-02 08:52:19,716 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:52:19,717 INFO L435 NwaCegarLoop]: 2680 mSDtfsCounter, 1445 mSDsluCounter, 5162 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1445 SdHoareTripleChecker+Valid, 7842 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:52:19,717 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1445 Valid, 7842 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:52:19,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2024-12-02 08:52:19,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4894. [2024-12-02 08:52:19,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4894 states, 3776 states have (on average 1.4253177966101696) internal successors, (5382), 3828 states have internal predecessors, (5382), 912 states have call successors, (912), 206 states have call predecessors, (912), 205 states have return successors, (979), 900 states have call predecessors, (979), 911 states have call successors, (979) [2024-12-02 08:52:19,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4894 states to 4894 states and 7273 transitions. [2024-12-02 08:52:19,842 INFO L78 Accepts]: Start accepts. Automaton has 4894 states and 7273 transitions. Word has length 276 [2024-12-02 08:52:19,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:52:19,843 INFO L471 AbstractCegarLoop]: Abstraction has 4894 states and 7273 transitions. [2024-12-02 08:52:19,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 3 states have internal predecessors, (138), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-12-02 08:52:19,844 INFO L276 IsEmpty]: Start isEmpty. Operand 4894 states and 7273 transitions. [2024-12-02 08:52:19,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2024-12-02 08:52:19,859 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:52:19,859 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:52:19,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-12-02 08:52:20,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:52:20,060 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:52:20,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:52:20,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1120450299, now seen corresponding path program 1 times [2024-12-02 08:52:20,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:52:20,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614046480] [2024-12-02 08:52:20,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:52:20,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:52:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:52:41,661 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2024-12-02 08:52:41,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:52:41,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614046480] [2024-12-02 08:52:41,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614046480] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:52:41,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528611359] [2024-12-02 08:52:41,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:52:41,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:52:41,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:52:41,663 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:52:41,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 08:53:07,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:07,267 INFO L256 TraceCheckSpWp]: Trace formula consists of 35330 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 08:53:07,282 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:53:07,698 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2024-12-02 08:53:07,699 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:53:07,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528611359] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:53:07,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:53:07,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-12-02 08:53:07,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562255172] [2024-12-02 08:53:07,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:53:07,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:53:07,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:07,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:53:07,700 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:53:07,700 INFO L87 Difference]: Start difference. First operand 4894 states and 7273 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 3 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2024-12-02 08:53:08,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:08,802 INFO L93 Difference]: Finished difference Result 14398 states and 21397 transitions. [2024-12-02 08:53:08,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:53:08,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 3 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 311 [2024-12-02 08:53:08,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:08,857 INFO L225 Difference]: With dead ends: 14398 [2024-12-02 08:53:08,858 INFO L226 Difference]: Without dead ends: 9524 [2024-12-02 08:53:08,878 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 314 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:53:08,879 INFO L435 NwaCegarLoop]: 2813 mSDtfsCounter, 2508 mSDsluCounter, 2459 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2508 SdHoareTripleChecker+Valid, 5272 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:08,879 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2508 Valid, 5272 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 08:53:08,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9524 states. [2024-12-02 08:53:09,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9524 to 9517. [2024-12-02 08:53:09,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9517 states, 7353 states have (on average 1.427172582619339) internal successors, (10494), 7459 states have internal predecessors, (10494), 1754 states have call successors, (1754), 410 states have call predecessors, (1754), 409 states have return successors, (1877), 1729 states have call predecessors, (1877), 1753 states have call successors, (1877) [2024-12-02 08:53:09,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9517 states to 9517 states and 14125 transitions. [2024-12-02 08:53:09,216 INFO L78 Accepts]: Start accepts. Automaton has 9517 states and 14125 transitions. Word has length 311 [2024-12-02 08:53:09,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:09,216 INFO L471 AbstractCegarLoop]: Abstraction has 9517 states and 14125 transitions. [2024-12-02 08:53:09,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 3 states have call successors, (38), 3 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2024-12-02 08:53:09,216 INFO L276 IsEmpty]: Start isEmpty. Operand 9517 states and 14125 transitions. [2024-12-02 08:53:09,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2024-12-02 08:53:09,253 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:09,253 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:53:09,342 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-02 08:53:09,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-12-02 08:53:09,454 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:09,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:09,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1746885501, now seen corresponding path program 1 times [2024-12-02 08:53:09,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:09,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065711520] [2024-12-02 08:53:09,454 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:09,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:53:30,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:31,694 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2024-12-02 08:53:31,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:53:31,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065711520] [2024-12-02 08:53:31,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2065711520] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:53:31,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258968270] [2024-12-02 08:53:31,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:53:31,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:53:31,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:53:31,696 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:53:31,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 08:53:57,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:53:57,158 INFO L256 TraceCheckSpWp]: Trace formula consists of 35330 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 08:53:57,173 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:53:57,267 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 73 proven. 1 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2024-12-02 08:53:57,268 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:53:58,608 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2024-12-02 08:53:58,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258968270] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:53:58,608 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:53:58,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-12-02 08:53:58,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101718650] [2024-12-02 08:53:58,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:53:58,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:53:58,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:53:58,610 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:53:58,610 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:53:58,610 INFO L87 Difference]: Start difference. First operand 9517 states and 14125 transitions. Second operand has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 2 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2024-12-02 08:53:58,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:53:58,984 INFO L93 Difference]: Finished difference Result 19062 states and 28295 transitions. [2024-12-02 08:53:58,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:53:58,985 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 2 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) Word has length 311 [2024-12-02 08:53:58,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:53:59,033 INFO L225 Difference]: With dead ends: 19062 [2024-12-02 08:53:59,033 INFO L226 Difference]: Without dead ends: 9565 [2024-12-02 08:53:59,063 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 624 GetRequests, 619 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:53:59,063 INFO L435 NwaCegarLoop]: 2597 mSDtfsCounter, 2 mSDsluCounter, 7779 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10376 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:53:59,064 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10376 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:53:59,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9565 states. [2024-12-02 08:53:59,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9565 to 9565. [2024-12-02 08:53:59,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9565 states, 7401 states have (on average 1.4244021078232671) internal successors, (10542), 7507 states have internal predecessors, (10542), 1754 states have call successors, (1754), 410 states have call predecessors, (1754), 409 states have return successors, (1877), 1729 states have call predecessors, (1877), 1753 states have call successors, (1877) [2024-12-02 08:53:59,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9565 states to 9565 states and 14173 transitions. [2024-12-02 08:53:59,380 INFO L78 Accepts]: Start accepts. Automaton has 9565 states and 14173 transitions. Word has length 311 [2024-12-02 08:53:59,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:53:59,381 INFO L471 AbstractCegarLoop]: Abstraction has 9565 states and 14173 transitions. [2024-12-02 08:53:59,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 31.285714285714285) internal successors, (219), 7 states have internal predecessors, (219), 2 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2024-12-02 08:53:59,381 INFO L276 IsEmpty]: Start isEmpty. Operand 9565 states and 14173 transitions. [2024-12-02 08:53:59,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2024-12-02 08:53:59,418 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:53:59,419 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:53:59,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 08:53:59,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:53:59,619 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:53:59,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:53:59,620 INFO L85 PathProgramCache]: Analyzing trace with hash 196360177, now seen corresponding path program 2 times [2024-12-02 08:53:59,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:53:59,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795992331] [2024-12-02 08:53:59,620 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 08:53:59,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:54:21,726 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 08:54:21,726 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 08:54:23,871 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2024-12-02 08:54:23,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:54:23,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795992331] [2024-12-02 08:54:23,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795992331] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:54:23,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:54:23,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:54:23,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398707286] [2024-12-02 08:54:23,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:54:23,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:54:23,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:54:23,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:54:23,873 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:54:23,873 INFO L87 Difference]: Start difference. First operand 9565 states and 14173 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2024-12-02 08:54:24,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:54:24,339 INFO L93 Difference]: Finished difference Result 19454 states and 28843 transitions. [2024-12-02 08:54:24,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:54:24,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 317 [2024-12-02 08:54:24,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:54:24,372 INFO L225 Difference]: With dead ends: 19454 [2024-12-02 08:54:24,372 INFO L226 Difference]: Without dead ends: 9909 [2024-12-02 08:54:24,395 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 [2024-12-02 08:54:24,395 INFO L435 NwaCegarLoop]: 2642 mSDtfsCounter, 78 mSDsluCounter, 2592 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 5234 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:54:24,395 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 5234 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:54:24,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9909 states. [2024-12-02 08:54:24,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9909 to 9581. [2024-12-02 08:54:24,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9581 states, 7417 states have (on average 1.4240258864770123) internal successors, (10562), 7523 states have internal predecessors, (10562), 1754 states have call successors, (1754), 410 states have call predecessors, (1754), 409 states have return successors, (1877), 1729 states have call predecessors, (1877), 1753 states have call successors, (1877) [2024-12-02 08:54:24,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9581 states to 9581 states and 14193 transitions. [2024-12-02 08:54:24,585 INFO L78 Accepts]: Start accepts. Automaton has 9581 states and 14193 transitions. Word has length 317 [2024-12-02 08:54:24,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:54:24,585 INFO L471 AbstractCegarLoop]: Abstraction has 9581 states and 14193 transitions. [2024-12-02 08:54:24,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2024-12-02 08:54:24,586 INFO L276 IsEmpty]: Start isEmpty. Operand 9581 states and 14193 transitions. [2024-12-02 08:54:24,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2024-12-02 08:54:24,608 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:54:24,608 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 6, 6, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:54:24,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 08:54:24,609 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:54:24,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:54:24,609 INFO L85 PathProgramCache]: Analyzing trace with hash -970754992, now seen corresponding path program 1 times [2024-12-02 08:54:24,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:54:24,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428935936] [2024-12-02 08:54:24,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:54:24,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:54:46,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:54:48,266 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2024-12-02 08:54:48,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:54:48,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428935936] [2024-12-02 08:54:48,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428935936] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:54:48,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903508532] [2024-12-02 08:54:48,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:54:48,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:54:48,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:54:48,268 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:54:48,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 08:55:14,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:55:15,006 INFO L256 TraceCheckSpWp]: Trace formula consists of 35479 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 08:55:15,020 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:55:15,449 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 73 proven. 16 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2024-12-02 08:55:15,449 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:55:17,212 INFO L134 CoverageAnalysis]: Checked inductivity of 303 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2024-12-02 08:55:17,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903508532] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:55:17,212 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:55:17,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 14 [2024-12-02 08:55:17,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440035585] [2024-12-02 08:55:17,213 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:55:17,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-12-02 08:55:17,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:55:17,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-12-02 08:55:17,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-12-02 08:55:17,214 INFO L87 Difference]: Start difference. First operand 9581 states and 14193 transitions. Second operand has 14 states, 14 states have (on average 17.071428571428573) internal successors, (239), 14 states have internal predecessors, (239), 2 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2024-12-02 08:55:19,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:55:19,549 INFO L93 Difference]: Finished difference Result 19630 states and 29015 transitions. [2024-12-02 08:55:19,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-12-02 08:55:19,550 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 17.071428571428573) internal successors, (239), 14 states have internal predecessors, (239), 2 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) Word has length 319 [2024-12-02 08:55:19,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:55:19,586 INFO L225 Difference]: With dead ends: 19630 [2024-12-02 08:55:19,586 INFO L226 Difference]: Without dead ends: 10069 [2024-12-02 08:55:19,611 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 660 GetRequests, 628 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=396, Invalid=726, Unknown=0, NotChecked=0, Total=1122 [2024-12-02 08:55:19,611 INFO L435 NwaCegarLoop]: 2593 mSDtfsCounter, 31 mSDsluCounter, 7771 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 10364 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:55:19,612 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 10364 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 08:55:19,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10069 states. [2024-12-02 08:55:19,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10069 to 9877. [2024-12-02 08:55:19,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9877 states, 7713 states have (on average 1.40879035394788) internal successors, (10866), 7819 states have internal predecessors, (10866), 1754 states have call successors, (1754), 410 states have call predecessors, (1754), 409 states have return successors, (1877), 1729 states have call predecessors, (1877), 1753 states have call successors, (1877) [2024-12-02 08:55:19,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9877 states to 9877 states and 14497 transitions. [2024-12-02 08:55:19,924 INFO L78 Accepts]: Start accepts. Automaton has 9877 states and 14497 transitions. Word has length 319 [2024-12-02 08:55:19,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:55:19,924 INFO L471 AbstractCegarLoop]: Abstraction has 9877 states and 14497 transitions. [2024-12-02 08:55:19,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 17.071428571428573) internal successors, (239), 14 states have internal predecessors, (239), 2 states have call successors, (71), 2 states have call predecessors, (71), 2 states have return successors, (70), 2 states have call predecessors, (70), 2 states have call successors, (70) [2024-12-02 08:55:19,925 INFO L276 IsEmpty]: Start isEmpty. Operand 9877 states and 14497 transitions. [2024-12-02 08:55:19,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2024-12-02 08:55:19,961 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:55:19,962 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 8, 8, 8, 8, 8, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:55:20,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 08:55:20,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:55:20,162 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:55:20,163 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:55:20,163 INFO L85 PathProgramCache]: Analyzing trace with hash -793678184, now seen corresponding path program 2 times [2024-12-02 08:55:20,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:55:20,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697668313] [2024-12-02 08:55:20,163 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 08:55:20,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:55:42,298 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 08:55:42,299 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 08:55:45,203 INFO L134 CoverageAnalysis]: Checked inductivity of 713 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 713 trivial. 0 not checked. [2024-12-02 08:55:45,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:55:45,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697668313] [2024-12-02 08:55:45,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697668313] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:55:45,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:55:45,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:55:45,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627783953] [2024-12-02 08:55:45,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:55:45,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:55:45,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:55:45,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:55:45,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:55:45,206 INFO L87 Difference]: Start difference. First operand 9877 states and 14497 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 1 states have call predecessors, (37), 1 states have call successors, (37) [2024-12-02 08:55:45,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:55:45,410 INFO L93 Difference]: Finished difference Result 19736 states and 28969 transitions. [2024-12-02 08:55:45,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:55:45,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 1 states have call predecessors, (37), 1 states have call successors, (37) Word has length 356 [2024-12-02 08:55:45,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:55:45,452 INFO L225 Difference]: With dead ends: 19736 [2024-12-02 08:55:45,452 INFO L226 Difference]: Without dead ends: 9879 [2024-12-02 08:55:45,479 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 [2024-12-02 08:55:45,479 INFO L435 NwaCegarLoop]: 2594 mSDtfsCounter, 4 mSDsluCounter, 2590 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 5184 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:55:45,480 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 5184 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:55:45,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9879 states. [2024-12-02 08:55:45,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9879 to 9877. [2024-12-02 08:55:45,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9877 states, 7713 states have (on average 1.4082717489952028) internal successors, (10862), 7819 states have internal predecessors, (10862), 1754 states have call successors, (1754), 410 states have call predecessors, (1754), 409 states have return successors, (1877), 1729 states have call predecessors, (1877), 1753 states have call successors, (1877) [2024-12-02 08:55:45,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9877 states to 9877 states and 14493 transitions. [2024-12-02 08:55:45,717 INFO L78 Accepts]: Start accepts. Automaton has 9877 states and 14493 transitions. Word has length 356 [2024-12-02 08:55:45,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:55:45,718 INFO L471 AbstractCegarLoop]: Abstraction has 9877 states and 14493 transitions. [2024-12-02 08:55:45,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 1 states have call predecessors, (37), 1 states have call successors, (37) [2024-12-02 08:55:45,718 INFO L276 IsEmpty]: Start isEmpty. Operand 9877 states and 14493 transitions. [2024-12-02 08:55:45,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2024-12-02 08:55:45,746 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:55:45,746 INFO L218 NwaCegarLoop]: trace histogram [20, 20, 8, 8, 8, 8, 8, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:55:45,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 08:55:45,746 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:55:45,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:55:45,747 INFO L85 PathProgramCache]: Analyzing trace with hash -855421061, now seen corresponding path program 1 times [2024-12-02 08:55:45,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:55:45,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944340423] [2024-12-02 08:55:45,747 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:55:45,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:56:06,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:56:08,950 INFO L134 CoverageAnalysis]: Checked inductivity of 713 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2024-12-02 08:56:08,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:56:08,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944340423] [2024-12-02 08:56:08,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944340423] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:56:08,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851799520] [2024-12-02 08:56:08,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:56:08,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:56:08,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:56:08,952 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:56:08,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 08:56:33,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:56:33,919 INFO L256 TraceCheckSpWp]: Trace formula consists of 36311 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 08:56:33,934 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:56:35,358 INFO L134 CoverageAnalysis]: Checked inductivity of 713 backedges. 298 proven. 100 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2024-12-02 08:56:35,359 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:56:38,252 INFO L134 CoverageAnalysis]: Checked inductivity of 713 backedges. 234 proven. 100 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2024-12-02 08:56:38,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851799520] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:56:38,253 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:56:38,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 13, 13] total 22 [2024-12-02 08:56:38,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402817683] [2024-12-02 08:56:38,253 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:56:38,254 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 08:56:38,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:56:38,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 08:56:38,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=301, Unknown=0, NotChecked=0, Total=462 [2024-12-02 08:56:38,255 INFO L87 Difference]: Start difference. First operand 9877 states and 14493 transitions. Second operand has 22 states, 22 states have (on average 13.227272727272727) internal successors, (291), 21 states have internal predecessors, (291), 2 states have call successors, (78), 2 states have call predecessors, (78), 3 states have return successors, (78), 3 states have call predecessors, (78), 2 states have call successors, (78) [2024-12-02 08:56:42,821 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.54s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:56:46,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:56:46,931 INFO L93 Difference]: Finished difference Result 29032 states and 42847 transitions. [2024-12-02 08:56:46,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-12-02 08:56:46,932 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 13.227272727272727) internal successors, (291), 21 states have internal predecessors, (291), 2 states have call successors, (78), 2 states have call predecessors, (78), 3 states have return successors, (78), 3 states have call predecessors, (78), 2 states have call successors, (78) Word has length 358 [2024-12-02 08:56:46,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:56:46,995 INFO L225 Difference]: With dead ends: 29032 [2024-12-02 08:56:46,995 INFO L226 Difference]: Without dead ends: 19175 [2024-12-02 08:56:47,022 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 741 GetRequests, 696 SyntacticMatches, 6 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 234 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=477, Invalid=1163, Unknown=0, NotChecked=0, Total=1640 [2024-12-02 08:56:47,022 INFO L435 NwaCegarLoop]: 3002 mSDtfsCounter, 2580 mSDsluCounter, 14534 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2581 SdHoareTripleChecker+Valid, 17536 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:56:47,023 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2581 Valid, 17536 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 78 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2024-12-02 08:56:47,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19175 states. [2024-12-02 08:56:47,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19175 to 19172. [2024-12-02 08:56:47,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19172 states, 14967 states have (on average 1.4144451125810116) internal successors, (21170), 15169 states have internal predecessors, (21170), 3407 states have call successors, (3407), 790 states have call predecessors, (3407), 797 states have return successors, (3658), 3368 states have call predecessors, (3658), 3406 states have call successors, (3658) [2024-12-02 08:56:47,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19172 states to 19172 states and 28235 transitions. [2024-12-02 08:56:47,661 INFO L78 Accepts]: Start accepts. Automaton has 19172 states and 28235 transitions. Word has length 358 [2024-12-02 08:56:47,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:56:47,661 INFO L471 AbstractCegarLoop]: Abstraction has 19172 states and 28235 transitions. [2024-12-02 08:56:47,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 13.227272727272727) internal successors, (291), 21 states have internal predecessors, (291), 2 states have call successors, (78), 2 states have call predecessors, (78), 3 states have return successors, (78), 3 states have call predecessors, (78), 2 states have call successors, (78) [2024-12-02 08:56:47,662 INFO L276 IsEmpty]: Start isEmpty. Operand 19172 states and 28235 transitions. [2024-12-02 08:56:47,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2024-12-02 08:56:47,702 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:56:47,702 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 8, 8, 8, 8, 8, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:56:47,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-12-02 08:56:47,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:56:47,903 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:56:47,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:56:47,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1192938894, now seen corresponding path program 1 times [2024-12-02 08:56:47,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:56:47,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092520850] [2024-12-02 08:56:47,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:56:47,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:57:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:57:07,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1348 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1339 trivial. 0 not checked. [2024-12-02 08:57:07,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:57:07,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092520850] [2024-12-02 08:57:07,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092520850] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:57:07,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:57:07,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:57:07,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964613877] [2024-12-02 08:57:07,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:57:07,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:57:07,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:57:07,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:57:07,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:57:07,952 INFO L87 Difference]: Start difference. First operand 19172 states and 28235 transitions. Second operand has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2024-12-02 08:57:10,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:57:10,625 INFO L93 Difference]: Finished difference Result 48379 states and 70595 transitions. [2024-12-02 08:57:10,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:57:10,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 398 [2024-12-02 08:57:10,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:57:10,699 INFO L225 Difference]: With dead ends: 48379 [2024-12-02 08:57:10,699 INFO L226 Difference]: Without dead ends: 29236 [2024-12-02 08:57:10,747 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 [2024-12-02 08:57:10,747 INFO L435 NwaCegarLoop]: 3303 mSDtfsCounter, 1697 mSDsluCounter, 2354 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1697 SdHoareTripleChecker+Valid, 5657 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:57:10,747 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1697 Valid, 5657 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-12-02 08:57:10,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29236 states. [2024-12-02 08:57:11,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29236 to 29229. [2024-12-02 08:57:11,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29229 states, 22809 states have (on average 1.3922574422377132) internal successors, (31756), 23159 states have internal predecessors, (31756), 5149 states have call successors, (5149), 1255 states have call predecessors, (5149), 1270 states have return successors, (5468), 5080 states have call predecessors, (5468), 5148 states have call successors, (5468) [2024-12-02 08:57:11,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29229 states to 29229 states and 42373 transitions. [2024-12-02 08:57:11,510 INFO L78 Accepts]: Start accepts. Automaton has 29229 states and 42373 transitions. Word has length 398 [2024-12-02 08:57:11,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:57:11,510 INFO L471 AbstractCegarLoop]: Abstraction has 29229 states and 42373 transitions. [2024-12-02 08:57:11,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.0) internal successors, (183), 3 states have internal predecessors, (183), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2024-12-02 08:57:11,510 INFO L276 IsEmpty]: Start isEmpty. Operand 29229 states and 42373 transitions. [2024-12-02 08:57:11,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2024-12-02 08:57:11,571 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:57:11,571 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 8, 8, 8, 8, 8, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:57:11,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 08:57:11,571 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:57:11,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:57:11,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1518434178, now seen corresponding path program 2 times [2024-12-02 08:57:11,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:57:11,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187968037] [2024-12-02 08:57:11,572 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 08:57:11,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:57:36,057 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 08:57:36,057 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 08:57:52,313 INFO L134 CoverageAnalysis]: Checked inductivity of 1348 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1348 trivial. 0 not checked. [2024-12-02 08:57:52,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:57:52,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187968037] [2024-12-02 08:57:52,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187968037] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:57:52,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:57:52,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 08:57:52,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [321512583] [2024-12-02 08:57:52,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:57:52,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 08:57:52,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:57:52,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 08:57:52,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 08:57:52,314 INFO L87 Difference]: Start difference. First operand 29229 states and 42373 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 6 states have internal predecessors, (179), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2024-12-02 08:57:55,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:57:55,798 INFO L93 Difference]: Finished difference Result 59827 states and 86958 transitions. [2024-12-02 08:57:55,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 08:57:55,798 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 6 states have internal predecessors, (179), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 398 [2024-12-02 08:57:55,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:57:55,891 INFO L225 Difference]: With dead ends: 59827 [2024-12-02 08:57:55,891 INFO L226 Difference]: Without dead ends: 30630 [2024-12-02 08:57:55,958 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:57:55,958 INFO L435 NwaCegarLoop]: 2580 mSDtfsCounter, 62 mSDsluCounter, 10083 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 12663 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:57:55,958 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 12663 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-12-02 08:57:55,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30630 states. [2024-12-02 08:57:56,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30630 to 29293. [2024-12-02 08:57:56,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29293 states, 22873 states have (on average 1.3918593975429545) internal successors, (31836), 23223 states have internal predecessors, (31836), 5149 states have call successors, (5149), 1255 states have call predecessors, (5149), 1270 states have return successors, (5468), 5080 states have call predecessors, (5468), 5148 states have call successors, (5468) [2024-12-02 08:57:56,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29293 states to 29293 states and 42453 transitions. [2024-12-02 08:57:56,642 INFO L78 Accepts]: Start accepts. Automaton has 29293 states and 42453 transitions. Word has length 398 [2024-12-02 08:57:56,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:57:56,643 INFO L471 AbstractCegarLoop]: Abstraction has 29293 states and 42453 transitions. [2024-12-02 08:57:56,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 6 states have internal predecessors, (179), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2024-12-02 08:57:56,643 INFO L276 IsEmpty]: Start isEmpty. Operand 29293 states and 42453 transitions. [2024-12-02 08:57:56,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2024-12-02 08:57:56,704 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:57:56,704 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 16, 16, 12, 12, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:57:56,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 08:57:56,704 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:57:56,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:57:56,705 INFO L85 PathProgramCache]: Analyzing trace with hash -122320954, now seen corresponding path program 1 times [2024-12-02 08:57:56,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:57:56,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137307173] [2024-12-02 08:57:56,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:57:56,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:58:16,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:58:17,183 INFO L134 CoverageAnalysis]: Checked inductivity of 1923 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 1910 trivial. 0 not checked. [2024-12-02 08:58:17,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:58:17,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137307173] [2024-12-02 08:58:17,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137307173] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:58:17,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:58:17,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:58:17,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588639632] [2024-12-02 08:58:17,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:58:17,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:58:17,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:58:17,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:58:17,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:58:17,185 INFO L87 Difference]: Start difference. First operand 29293 states and 42453 transitions. Second operand has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2024-12-02 08:58:21,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.50s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:58:25,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:58:25,284 INFO L93 Difference]: Finished difference Result 75221 states and 109229 transitions. [2024-12-02 08:58:25,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:58:25,285 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) Word has length 522 [2024-12-02 08:58:25,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:58:25,393 INFO L225 Difference]: With dead ends: 75221 [2024-12-02 08:58:25,393 INFO L226 Difference]: Without dead ends: 45960 [2024-12-02 08:58:25,452 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 [2024-12-02 08:58:25,452 INFO L435 NwaCegarLoop]: 3517 mSDtfsCounter, 2248 mSDsluCounter, 2334 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 103 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2248 SdHoareTripleChecker+Valid, 5851 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:58:25,453 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2248 Valid, 5851 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 276 Invalid, 1 Unknown, 0 Unchecked, 7.2s Time] [2024-12-02 08:58:25,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45960 states. [2024-12-02 08:58:26,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45960 to 45905. [2024-12-02 08:58:26,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45905 states, 36321 states have (on average 1.3798628892376312) internal successors, (50118), 36867 states have internal predecessors, (50118), 7543 states have call successors, (7543), 2017 states have call predecessors, (7543), 2040 states have return successors, (7954), 7434 states have call predecessors, (7954), 7542 states have call successors, (7954) [2024-12-02 08:58:26,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45905 states to 45905 states and 65615 transitions. [2024-12-02 08:58:26,331 INFO L78 Accepts]: Start accepts. Automaton has 45905 states and 65615 transitions. Word has length 522 [2024-12-02 08:58:26,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:58:26,331 INFO L471 AbstractCegarLoop]: Abstraction has 45905 states and 65615 transitions. [2024-12-02 08:58:26,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.0) internal successors, (201), 3 states have internal predecessors, (201), 3 states have call successors, (52), 2 states have call predecessors, (52), 1 states have return successors, (51), 3 states have call predecessors, (51), 3 states have call successors, (51) [2024-12-02 08:58:26,332 INFO L276 IsEmpty]: Start isEmpty. Operand 45905 states and 65615 transitions. [2024-12-02 08:58:26,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 523 [2024-12-02 08:58:26,426 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:58:26,426 INFO L218 NwaCegarLoop]: trace histogram [32, 32, 16, 16, 12, 12, 8, 8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:58:26,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 08:58:26,426 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:58:26,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:58:26,427 INFO L85 PathProgramCache]: Analyzing trace with hash -66849734, now seen corresponding path program 1 times [2024-12-02 08:58:26,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:58:26,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123515027] [2024-12-02 08:58:26,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:58:26,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:58:45,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:58:47,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1923 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 1910 trivial. 0 not checked. [2024-12-02 08:58:47,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:58:47,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123515027] [2024-12-02 08:58:47,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123515027] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:58:47,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976729929] [2024-12-02 08:58:47,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:58:47,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:58:47,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:58:47,938 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:58:47,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 08:59:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:59:13,603 INFO L256 TraceCheckSpWp]: Trace formula consists of 37250 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-12-02 08:59:13,614 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:59:15,099 INFO L134 CoverageAnalysis]: Checked inductivity of 1923 backedges. 72 proven. 551 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-12-02 08:59:15,100 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:59:19,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1923 backedges. 8 proven. 551 refuted. 0 times theorem prover too weak. 1364 trivial. 0 not checked. [2024-12-02 08:59:19,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976729929] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:59:19,025 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:59:19,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2024-12-02 08:59:19,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423436908] [2024-12-02 08:59:19,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:59:19,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:59:19,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:59:19,027 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:59:19,027 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:59:19,027 INFO L87 Difference]: Start difference. First operand 45905 states and 65615 transitions. Second operand has 10 states, 10 states have (on average 32.3) internal successors, (323), 9 states have internal predecessors, (323), 2 states have call successors, (106), 2 states have call predecessors, (106), 3 states have return successors, (106), 3 states have call predecessors, (106), 2 states have call successors, (106) [2024-12-02 08:59:23,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.49s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 08:59:25,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:59:25,981 INFO L93 Difference]: Finished difference Result 79450 states and 112927 transitions. [2024-12-02 08:59:25,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 08:59:25,982 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 32.3) internal successors, (323), 9 states have internal predecessors, (323), 2 states have call successors, (106), 2 states have call predecessors, (106), 3 states have return successors, (106), 3 states have call predecessors, (106), 2 states have call successors, (106) Word has length 522 [2024-12-02 08:59:25,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:59:26,007 INFO L225 Difference]: With dead ends: 79450 [2024-12-02 08:59:26,007 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 08:59:26,129 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1057 GetRequests, 1040 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=63, Invalid=209, Unknown=0, NotChecked=0, Total=272 [2024-12-02 08:59:26,130 INFO L435 NwaCegarLoop]: 4156 mSDtfsCounter, 2568 mSDsluCounter, 19143 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2568 SdHoareTripleChecker+Valid, 23299 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-12-02 08:59:26,130 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2568 Valid, 23299 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 84 Invalid, 1 Unknown, 0 Unchecked, 5.6s Time] [2024-12-02 08:59:26,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 08:59:26,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 08:59:26,131 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) [2024-12-02 08:59:26,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 08:59:26,153 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 522 [2024-12-02 08:59:26,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:59:26,154 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 08:59:26,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 32.3) internal successors, (323), 9 states have internal predecessors, (323), 2 states have call successors, (106), 2 states have call predecessors, (106), 3 states have return successors, (106), 3 states have call predecessors, (106), 2 states have call successors, (106) [2024-12-02 08:59:26,154 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 08:59:26,154 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 08:59:26,157 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 08:59:26,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-12-02 08:59:26,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6bf04bf8-b806-48bf-aea0-4fd7597637ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:59:26,359 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:59:26,360 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.