./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.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_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/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_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/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_259ee975-6c09-49f7-a74f-ff43c502f525/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 246ceae3084839b9b339f99ac0b8607f0cf18f3fcdd140edc02c2b8d150b0ed6 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:10:47,976 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:10:48,033 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 11:10:48,037 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:10:48,037 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:10:48,058 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:10:48,058 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:10:48,058 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:10:48,059 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:10:48,059 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:10:48,059 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:10:48,059 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:10:48,059 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:10:48,059 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:10:48,060 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:10:48,060 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:10:48,060 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:10:48,060 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:10:48,060 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:10:48,060 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:10:48,060 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:10:48,060 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:10:48,060 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:10:48,060 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:10:48,060 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:10:48,060 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:10:48,061 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:10:48,061 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:10:48,061 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:10:48,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:10:48,061 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:10:48,061 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:10:48,061 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:10:48,061 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:10:48,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:10:48,061 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:10:48,061 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:10:48,061 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:10:48,062 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:10:48,062 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:10:48,062 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:10:48,062 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:10:48,062 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:10:48,062 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:10:48,062 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:10:48,062 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_259ee975-6c09-49f7-a74f-ff43c502f525/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 -> 246ceae3084839b9b339f99ac0b8607f0cf18f3fcdd140edc02c2b8d150b0ed6 [2024-12-02 11:10:48,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:10:48,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:10:48,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:10:48,317 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:10:48,317 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:10:48,318 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i [2024-12-02 11:10:50,949 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/data/7b077fd0b/b6865611a8cb4637bbfe2ee97c6acced/FLAGf4ea0e30e [2024-12-02 11:10:51,385 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:10:51,386 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i [2024-12-02 11:10:51,416 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/data/7b077fd0b/b6865611a8cb4637bbfe2ee97c6acced/FLAGf4ea0e30e [2024-12-02 11:10:51,519 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/data/7b077fd0b/b6865611a8cb4637bbfe2ee97c6acced [2024-12-02 11:10:51,521 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:10:51,522 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:10:51,524 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:10:51,524 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:10:51,528 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:10:51,529 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:10:51" (1/1) ... [2024-12-02 11:10:51,529 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2abf1357 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:10:51, skipping insertion in model container [2024-12-02 11:10:51,530 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:10:51" (1/1) ... [2024-12-02 11:10:51,611 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:10:52,920 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_259ee975-6c09-49f7-a74f-ff43c502f525/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i[261928,261941] [2024-12-02 11:10:52,975 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:10:53,004 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:10:53,125 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5603] [2024-12-02 11:10:53,143 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [5934-5935] [2024-12-02 11:10:53,145 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [5963-5964] [2024-12-02 11:10:53,206 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7206] [2024-12-02 11:10:53,218 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7495] [2024-12-02 11:10:53,271 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_259ee975-6c09-49f7-a74f-ff43c502f525/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i[261928,261941] [2024-12-02 11:10:53,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:10:53,423 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:10:53,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:10:53 WrapperNode [2024-12-02 11:10:53,424 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:10:53,425 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:10:53,425 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:10:53,425 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:10:53,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:10:53" (1/1) ... [2024-12-02 11:10:53,481 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:10:53" (1/1) ... [2024-12-02 11:10:53,653 INFO L138 Inliner]: procedures = 235, calls = 1628, calls flagged for inlining = 116, calls inlined = 113, statements flattened = 5212 [2024-12-02 11:10:53,654 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:10:53,654 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:10:53,654 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:10:53,654 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:10:53,665 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:10:53" (1/1) ... [2024-12-02 11:10:53,665 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:10:53" (1/1) ... [2024-12-02 11:10:53,694 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:10:53" (1/1) ... [2024-12-02 11:10:54,197 INFO L175 MemorySlicer]: Split 1005 memory accesses to 19 slices as follows [2, 5, 4, 5, 2, 4, 5, 56, 4, 5, 832, 3, 5, 43, 5, 13, 4, 3, 5]. 83 percent of accesses are in the largest equivalence class. The 63 initializations are split as follows [2, 5, 0, 5, 0, 0, 5, 0, 4, 0, 17, 3, 5, 0, 5, 0, 4, 3, 5]. The 477 writes are split as follows [0, 0, 3, 0, 1, 1, 0, 56, 0, 3, 365, 0, 0, 43, 0, 5, 0, 0, 0]. [2024-12-02 11:10:54,198 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:10:53" (1/1) ... [2024-12-02 11:10:54,198 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:10:53" (1/1) ... [2024-12-02 11:10:54,294 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:10:53" (1/1) ... [2024-12-02 11:10:54,307 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:10:53" (1/1) ... [2024-12-02 11:10:54,326 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:10:53" (1/1) ... [2024-12-02 11:10:54,357 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:10:53" (1/1) ... [2024-12-02 11:10:54,368 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:10:53" (1/1) ... [2024-12-02 11:10:54,408 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:10:54,409 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:10:54,409 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:10:54,409 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:10:54,410 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:10:53" (1/1) ... [2024-12-02 11:10:54,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:10:54,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:10:54,438 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:10:54,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:10:54,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_3 [2024-12-02 11:10:54,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_3 [2024-12-02 11:10:54,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-12-02 11:10:54,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-12-02 11:10:54,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-12-02 11:10:54,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-12-02 11:10:54,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-12-02 11:10:54,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-12-02 11:10:54,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-12-02 11:10:54,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-12-02 11:10:54,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-12-02 11:10:54,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2024-12-02 11:10:54,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2024-12-02 11:10:54,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2024-12-02 11:10:54,463 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2024-12-02 11:10:54,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2024-12-02 11:10:54,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#14 [2024-12-02 11:10:54,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#15 [2024-12-02 11:10:54,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#16 [2024-12-02 11:10:54,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#17 [2024-12-02 11:10:54,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#18 [2024-12-02 11:10:54,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 11:10:54,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 11:10:54,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 11:10:54,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 11:10:54,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 11:10:54,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 11:10:54,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 11:10:54,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 11:10:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-12-02 11:10:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-12-02 11:10:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-12-02 11:10:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-12-02 11:10:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-12-02 11:10:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-12-02 11:10:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-12-02 11:10:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2024-12-02 11:10:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2024-12-02 11:10:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2024-12-02 11:10:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2024-12-02 11:10:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2024-12-02 11:10:54,465 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2024-12-02 11:10:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-12-02 11:10:54,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-12-02 11:10:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-12-02 11:10:54,465 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-12-02 11:10:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2024-12-02 11:10:54,465 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2024-12-02 11:10:54,465 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_set_filter_mode [2024-12-02 11:10:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_set_filter_mode [2024-12-02 11:10:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-12-02 11:10:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-12-02 11:10:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2024-12-02 11:10:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2024-12-02 11:10:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2024-12-02 11:10:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2024-12-02 11:10:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-12-02 11:10:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-12-02 11:10:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_resume [2024-12-02 11:10:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_resume [2024-12-02 11:10:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-12-02 11:10:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-12-02 11:10:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_write_1bit [2024-12-02 11:10:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_write_1bit [2024-12-02 11:10:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2024-12-02 11:10:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2024-12-02 11:10:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2024-12-02 11:10:54,466 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2024-12-02 11:10:54,466 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2024-12-02 11:10:54,467 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2024-12-02 11:10:54,467 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2024-12-02 11:10:54,467 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2024-12-02 11:10:54,467 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite16 [2024-12-02 11:10:54,467 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite16 [2024-12-02 11:10:54,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-12-02 11:10:54,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-12-02 11:10:54,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-12-02 11:10:54,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-12-02 11:10:54,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-12-02 11:10:54,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-12-02 11:10:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-12-02 11:10:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-12-02 11:10:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-12-02 11:10:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-12-02 11:10:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2024-12-02 11:10:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2024-12-02 11:10:54,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#12 [2024-12-02 11:10:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#13 [2024-12-02 11:10:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#14 [2024-12-02 11:10:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#15 [2024-12-02 11:10:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#16 [2024-12-02 11:10:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#17 [2024-12-02 11:10:54,469 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#18 [2024-12-02 11:10:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-12-02 11:10:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-12-02 11:10:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-12-02 11:10:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-12-02 11:10:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-12-02 11:10:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-12-02 11:10:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-12-02 11:10:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-12-02 11:10:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-12-02 11:10:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-12-02 11:10:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2024-12-02 11:10:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2024-12-02 11:10:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#12 [2024-12-02 11:10:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#13 [2024-12-02 11:10:54,469 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#14 [2024-12-02 11:10:54,470 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#15 [2024-12-02 11:10:54,470 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#16 [2024-12-02 11:10:54,470 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#17 [2024-12-02 11:10:54,470 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#18 [2024-12-02 11:10:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 11:10:54,470 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 11:10:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2024-12-02 11:10:54,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2024-12-02 11:10:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-12-02 11:10:54,470 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-12-02 11:10:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2024-12-02 11:10:54,470 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2024-12-02 11:10:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2024-12-02 11:10:54,470 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2024-12-02 11:10:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2024-12-02 11:10:54,470 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2024-12-02 11:10:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_reuse_skb [2024-12-02 11:10:54,470 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_reuse_skb [2024-12-02 11:10:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2024-12-02 11:10:54,470 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2024-12-02 11:10:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 11:10:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2024-12-02 11:10:54,470 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2024-12-02 11:10:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 11:10:54,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 11:10:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 11:10:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 11:10:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 11:10:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 11:10:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 11:10:54,471 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 11:10:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-12-02 11:10:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-12-02 11:10:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-12-02 11:10:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-12-02 11:10:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-12-02 11:10:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-12-02 11:10:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-12-02 11:10:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-12-02 11:10:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-12-02 11:10:54,472 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-12-02 11:10:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-12-02 11:10:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2024-12-02 11:10:54,473 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2024-12-02 11:10:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2024-12-02 11:10:54,473 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2024-12-02 11:10:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2024-12-02 11:10:54,473 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2024-12-02 11:10:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2024-12-02 11:10:54,473 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2024-12-02 11:10:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2024-12-02 11:10:54,473 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2024-12-02 11:10:54,473 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-12-02 11:10:54,473 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-12-02 11:10:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2024-12-02 11:10:54,474 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2024-12-02 11:10:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_read_1bit [2024-12-02 11:10:54,474 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_read_1bit [2024-12-02 11:10:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 11:10:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-12-02 11:10:54,474 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-12-02 11:10:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_init_dm910x [2024-12-02 11:10:54,474 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_init_dm910x [2024-12-02 11:10:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2024-12-02 11:10:54,474 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2024-12-02 11:10:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-12-02 11:10:54,474 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-12-02 11:10:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure poll_dmfe [2024-12-02 11:10:54,474 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_dmfe [2024-12-02 11:10:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_write [2024-12-02 11:10:54,474 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_write [2024-12-02 11:10:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-12-02 11:10:54,474 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-12-02 11:10:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure __dev_kfree_skb_any [2024-12-02 11:10:54,474 INFO L138 BoogieDeclarations]: Found implementation of procedure __dev_kfree_skb_any [2024-12-02 11:10:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-12-02 11:10:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-12-02 11:10:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-12-02 11:10:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-12-02 11:10:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-12-02 11:10:54,474 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-12-02 11:10:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-12-02 11:10:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-12-02 11:10:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-12-02 11:10:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2024-12-02 11:10:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2024-12-02 11:10:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2024-12-02 11:10:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2024-12-02 11:10:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2024-12-02 11:10:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#14 [2024-12-02 11:10:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#15 [2024-12-02 11:10:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#16 [2024-12-02 11:10:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#17 [2024-12-02 11:10:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#18 [2024-12-02 11:10:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2024-12-02 11:10:54,475 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2024-12-02 11:10:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_dword [2024-12-02 11:10:54,475 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_dword [2024-12-02 11:10:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2024-12-02 11:10:54,475 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2024-12-02 11:10:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 11:10:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 11:10:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 11:10:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 11:10:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 11:10:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 11:10:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 11:10:54,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-02 11:10:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-12-02 11:10:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-12-02 11:10:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-12-02 11:10:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-12-02 11:10:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-12-02 11:10:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-12-02 11:10:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-12-02 11:10:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-12-02 11:10:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2024-12-02 11:10:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2024-12-02 11:10:54,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2024-12-02 11:10:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_remove_one [2024-12-02 11:10:54,477 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_remove_one [2024-12-02 11:10:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 11:10:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 11:10:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 11:10:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 11:10:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 11:10:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 11:10:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 11:10:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 11:10:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 11:10:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-12-02 11:10:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-12-02 11:10:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-12-02 11:10:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-12-02 11:10:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-12-02 11:10:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-12-02 11:10:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-12-02 11:10:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-12-02 11:10:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-12-02 11:10:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-12-02 11:10:54,477 INFO L130 BoogieDeclarations]: Found specification of procedure dm9132_id_table [2024-12-02 11:10:54,478 INFO L138 BoogieDeclarations]: Found implementation of procedure dm9132_id_table [2024-12-02 11:10:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-12-02 11:10:54,478 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-12-02 11:10:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2024-12-02 11:10:54,478 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2024-12-02 11:10:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2024-12-02 11:10:54,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2024-12-02 11:10:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_interrupt [2024-12-02 11:10:54,478 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_interrupt [2024-12-02 11:10:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2024-12-02 11:10:54,478 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2024-12-02 11:10:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2024-12-02 11:10:54,478 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2024-12-02 11:10:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 11:10:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 11:10:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 11:10:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 11:10:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 11:10:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 11:10:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 11:10:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 11:10:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 11:10:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-12-02 11:10:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-12-02 11:10:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-12-02 11:10:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-12-02 11:10:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-12-02 11:10:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-12-02 11:10:54,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-12-02 11:10:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-12-02 11:10:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-12-02 11:10:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-12-02 11:10:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-12-02 11:10:54,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-12-02 11:10:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-12-02 11:10:54,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-12-02 11:10:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure cal_CRC [2024-12-02 11:10:54,479 INFO L138 BoogieDeclarations]: Found implementation of procedure cal_CRC [2024-12-02 11:10:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2024-12-02 11:10:54,479 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2024-12-02 11:10:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 11:10:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-12-02 11:10:54,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-12-02 11:10:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:10:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2024-12-02 11:10:54,479 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2024-12-02 11:10:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2024-12-02 11:10:54,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2024-12-02 11:10:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-12-02 11:10:54,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-12-02 11:10:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 11:10:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 11:10:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 11:10:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 11:10:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 11:10:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 11:10:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 11:10:54,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 11:10:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-12-02 11:10:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-12-02 11:10:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-12-02 11:10:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-12-02 11:10:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-12-02 11:10:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-12-02 11:10:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-12-02 11:10:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-12-02 11:10:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-12-02 11:10:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-12-02 11:10:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-12-02 11:10:54,480 INFO L130 BoogieDeclarations]: Found specification of procedure pci_read_config_dword [2024-12-02 11:10:54,481 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_read_config_dword [2024-12-02 11:10:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2024-12-02 11:10:54,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2024-12-02 11:10:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2024-12-02 11:10:54,481 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2024-12-02 11:10:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_3 [2024-12-02 11:10:54,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_3 [2024-12-02 11:10:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_phy_read [2024-12-02 11:10:54,481 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_phy_read [2024-12-02 11:10:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure ioread8 [2024-12-02 11:10:54,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread8 [2024-12-02 11:10:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure dmfe_free_rxbuffer [2024-12-02 11:10:54,481 INFO L138 BoogieDeclarations]: Found implementation of procedure dmfe_free_rxbuffer [2024-12-02 11:10:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2024-12-02 11:10:54,481 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2024-12-02 11:10:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2024-12-02 11:10:54,481 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2024-12-02 11:10:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-12-02 11:10:54,481 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-12-02 11:10:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:10:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 11:10:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 11:10:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 11:10:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 11:10:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 11:10:54,481 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 11:10:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 11:10:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 11:10:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 11:10:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 11:10:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 11:10:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 11:10:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 11:10:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 11:10:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-12-02 11:10:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-12-02 11:10:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-12-02 11:10:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-12-02 11:10:54,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:10:54,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:10:55,159 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:10:55,162 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:10:55,191 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-12-02 11:11:08,547 INFO L? ?]: Removed 1862 outVars from TransFormulas that were not future-live. [2024-12-02 11:11:08,548 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:11:08,582 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:11:08,582 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 11:11:08,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:11:08 BoogieIcfgContainer [2024-12-02 11:11:08,582 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:11:08,584 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:11:08,584 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:11:08,588 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:11:08,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:10:51" (1/3) ... [2024-12-02 11:11:08,589 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57f1f67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:11:08, skipping insertion in model container [2024-12-02 11:11:08,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:10:53" (2/3) ... [2024-12-02 11:11:08,589 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57f1f67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:11:08, skipping insertion in model container [2024-12-02 11:11:08,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:11:08" (3/3) ... [2024-12-02 11:11:08,590 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i [2024-12-02 11:11:08,604 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:11:08,607 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--dec--tulip--dmfe.ko-entry_point.cil.out.i that has 92 procedures, 2018 locations, 1 initial locations, 21 loop locations, and 1 error locations. [2024-12-02 11:11:08,697 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:11:08,709 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;@7f7b6c7d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:11:08,709 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:11:08,718 INFO L276 IsEmpty]: Start isEmpty. Operand has 1949 states, 1505 states have (on average 1.412624584717608) internal successors, (2126), 1531 states have internal predecessors, (2126), 369 states have call successors, (369), 74 states have call predecessors, (369), 73 states have return successors, (362), 356 states have call predecessors, (362), 362 states have call successors, (362) [2024-12-02 11:11:08,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-12-02 11:11:08,743 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:08,744 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:08,744 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:08,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:08,749 INFO L85 PathProgramCache]: Analyzing trace with hash -875614031, now seen corresponding path program 1 times [2024-12-02 11:11:08,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:08,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51838227] [2024-12-02 11:11:08,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:08,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:15,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:15,711 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-12-02 11:11:15,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:15,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51838227] [2024-12-02 11:11:15,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51838227] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:11:15,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [613540852] [2024-12-02 11:11:15,713 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:15,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:11:15,713 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:11:15,715 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:11:15,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 11:11:22,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:22,993 INFO L256 TraceCheckSpWp]: Trace formula consists of 3649 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 11:11:23,002 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:11:23,023 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-12-02 11:11:23,023 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:11:23,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [613540852] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:23,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:11:23,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 11:11:23,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097873799] [2024-12-02 11:11:23,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:23,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 11:11:23,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:23,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 11:11:23,050 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:11:23,055 INFO L87 Difference]: Start difference. First operand has 1949 states, 1505 states have (on average 1.412624584717608) internal successors, (2126), 1531 states have internal predecessors, (2126), 369 states have call successors, (369), 74 states have call predecessors, (369), 73 states have return successors, (362), 356 states have call predecessors, (362), 362 states have call successors, (362) Second operand has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 11:11:23,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:23,214 INFO L93 Difference]: Finished difference Result 3893 states and 5801 transitions. [2024-12-02 11:11:23,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 11:11:23,216 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 166 [2024-12-02 11:11:23,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:23,241 INFO L225 Difference]: With dead ends: 3893 [2024-12-02 11:11:23,241 INFO L226 Difference]: Without dead ends: 1925 [2024-12-02 11:11:23,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 11:11:23,259 INFO L435 NwaCegarLoop]: 2812 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2812 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:23,260 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2812 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:11:23,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1925 states. [2024-12-02 11:11:23,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1925 to 1925. [2024-12-02 11:11:23,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1925 states, 1491 states have (on average 1.379610999329309) internal successors, (2057), 1508 states have internal predecessors, (2057), 361 states have call successors, (361), 73 states have call predecessors, (361), 72 states have return successors, (360), 354 states have call predecessors, (360), 360 states have call successors, (360) [2024-12-02 11:11:23,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1925 states to 1925 states and 2778 transitions. [2024-12-02 11:11:23,440 INFO L78 Accepts]: Start accepts. Automaton has 1925 states and 2778 transitions. Word has length 166 [2024-12-02 11:11:23,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:23,440 INFO L471 AbstractCegarLoop]: Abstraction has 1925 states and 2778 transitions. [2024-12-02 11:11:23,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 2 states have call successors, (24), 2 states have call predecessors, (24), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 11:11:23,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1925 states and 2778 transitions. [2024-12-02 11:11:23,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 11:11:23,451 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:23,451 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-12-02 11:11:23,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 11:11:23,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 11:11:23,652 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:23,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:23,652 INFO L85 PathProgramCache]: Analyzing trace with hash 780726358, now seen corresponding path program 1 times [2024-12-02 11:11:23,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:23,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142438318] [2024-12-02 11:11:23,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:23,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:30,826 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-12-02 11:11:30,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:30,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142438318] [2024-12-02 11:11:30,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142438318] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:30,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:30,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:11:30,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728299569] [2024-12-02 11:11:30,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:30,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:11:30,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:30,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:11:30,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:11:30,828 INFO L87 Difference]: Start difference. First operand 1925 states and 2778 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 11:11:31,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:31,519 INFO L93 Difference]: Finished difference Result 5730 states and 8275 transitions. [2024-12-02 11:11:31,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:11:31,520 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 153 [2024-12-02 11:11:31,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:31,547 INFO L225 Difference]: With dead ends: 5730 [2024-12-02 11:11:31,547 INFO L226 Difference]: Without dead ends: 3829 [2024-12-02 11:11:31,557 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:11:31,558 INFO L435 NwaCegarLoop]: 2792 mSDtfsCounter, 2753 mSDsluCounter, 8314 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2754 SdHoareTripleChecker+Valid, 11106 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:31,558 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2754 Valid, 11106 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 11:11:31,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3829 states. [2024-12-02 11:11:31,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3829 to 3820. [2024-12-02 11:11:31,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3820 states, 2962 states have (on average 1.3801485482781903) internal successors, (4088), 3000 states have internal predecessors, (4088), 714 states have call successors, (714), 144 states have call predecessors, (714), 143 states have return successors, (713), 697 states have call predecessors, (713), 713 states have call successors, (713) [2024-12-02 11:11:31,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3820 states to 3820 states and 5515 transitions. [2024-12-02 11:11:31,793 INFO L78 Accepts]: Start accepts. Automaton has 3820 states and 5515 transitions. Word has length 153 [2024-12-02 11:11:31,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:31,794 INFO L471 AbstractCegarLoop]: Abstraction has 3820 states and 5515 transitions. [2024-12-02 11:11:31,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 11:11:31,794 INFO L276 IsEmpty]: Start isEmpty. Operand 3820 states and 5515 transitions. [2024-12-02 11:11:31,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-12-02 11:11:31,804 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:31,804 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:11:31,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:11:31,804 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:31,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:31,805 INFO L85 PathProgramCache]: Analyzing trace with hash -1418015047, now seen corresponding path program 1 times [2024-12-02 11:11:31,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:31,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606451142] [2024-12-02 11:11:31,805 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:31,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:38,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:38,889 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-12-02 11:11:38,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:38,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606451142] [2024-12-02 11:11:38,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606451142] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:38,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:38,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:11:38,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688948194] [2024-12-02 11:11:38,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:38,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:11:38,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:38,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:11:38,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:11:38,892 INFO L87 Difference]: Start difference. First operand 3820 states and 5515 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 11:11:39,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:39,741 INFO L93 Difference]: Finished difference Result 10874 states and 15696 transitions. [2024-12-02 11:11:39,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:11:39,742 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 166 [2024-12-02 11:11:39,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:39,790 INFO L225 Difference]: With dead ends: 10874 [2024-12-02 11:11:39,790 INFO L226 Difference]: Without dead ends: 7078 [2024-12-02 11:11:39,810 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 11:11:39,811 INFO L435 NwaCegarLoop]: 2852 mSDtfsCounter, 2383 mSDsluCounter, 2668 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2383 SdHoareTripleChecker+Valid, 5520 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:39,811 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2383 Valid, 5520 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 11:11:39,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7078 states. [2024-12-02 11:11:40,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7078 to 7065. [2024-12-02 11:11:40,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7065 states, 5504 states have (on average 1.382267441860465) internal successors, (7608), 5570 states have internal predecessors, (7608), 1290 states have call successors, (1290), 271 states have call predecessors, (1290), 270 states have return successors, (1297), 1261 states have call predecessors, (1297), 1289 states have call successors, (1297) [2024-12-02 11:11:40,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7065 states to 7065 states and 10195 transitions. [2024-12-02 11:11:40,120 INFO L78 Accepts]: Start accepts. Automaton has 7065 states and 10195 transitions. Word has length 166 [2024-12-02 11:11:40,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:40,121 INFO L471 AbstractCegarLoop]: Abstraction has 7065 states and 10195 transitions. [2024-12-02 11:11:40,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 11:11:40,121 INFO L276 IsEmpty]: Start isEmpty. Operand 7065 states and 10195 transitions. [2024-12-02 11:11:40,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-12-02 11:11:40,127 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:40,127 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-12-02 11:11:40,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:11:40,127 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:40,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:40,128 INFO L85 PathProgramCache]: Analyzing trace with hash -300367981, now seen corresponding path program 1 times [2024-12-02 11:11:40,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:40,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309259513] [2024-12-02 11:11:40,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:40,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:45,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:46,708 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-12-02 11:11:46,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:46,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309259513] [2024-12-02 11:11:46,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309259513] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:46,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:46,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:11:46,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349627938] [2024-12-02 11:11:46,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:46,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:11:46,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:46,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:11:46,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:11:46,710 INFO L87 Difference]: Start difference. First operand 7065 states and 10195 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 11:11:47,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:47,459 INFO L93 Difference]: Finished difference Result 21173 states and 30553 transitions. [2024-12-02 11:11:47,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:11:47,459 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 154 [2024-12-02 11:11:47,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:47,584 INFO L225 Difference]: With dead ends: 21173 [2024-12-02 11:11:47,584 INFO L226 Difference]: Without dead ends: 14132 [2024-12-02 11:11:47,600 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:11:47,601 INFO L435 NwaCegarLoop]: 2786 mSDtfsCounter, 2754 mSDsluCounter, 8301 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2755 SdHoareTripleChecker+Valid, 11087 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:47,601 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2755 Valid, 11087 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:11:47,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14132 states. [2024-12-02 11:11:47,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14132 to 14109. [2024-12-02 11:11:47,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14109 states, 10998 states have (on average 1.3820694671758502) internal successors, (15200), 11128 states have internal predecessors, (15200), 2570 states have call successors, (2570), 541 states have call predecessors, (2570), 540 states have return successors, (2585), 2515 states have call predecessors, (2585), 2569 states have call successors, (2585) [2024-12-02 11:11:47,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14109 states to 14109 states and 20355 transitions. [2024-12-02 11:11:47,968 INFO L78 Accepts]: Start accepts. Automaton has 14109 states and 20355 transitions. Word has length 154 [2024-12-02 11:11:47,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:47,968 INFO L471 AbstractCegarLoop]: Abstraction has 14109 states and 20355 transitions. [2024-12-02 11:11:47,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 11:11:47,968 INFO L276 IsEmpty]: Start isEmpty. Operand 14109 states and 20355 transitions. [2024-12-02 11:11:47,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-12-02 11:11:47,972 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:47,972 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-12-02 11:11:47,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:11:47,972 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:47,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:47,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1610705491, now seen corresponding path program 1 times [2024-12-02 11:11:47,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:47,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499382814] [2024-12-02 11:11:47,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:47,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:11:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:11:54,936 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-12-02 11:11:54,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:11:54,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499382814] [2024-12-02 11:11:54,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499382814] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:11:54,936 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:11:54,936 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:11:54,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873351759] [2024-12-02 11:11:54,936 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:11:54,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:11:54,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:11:54,937 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:11:54,937 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:11:54,937 INFO L87 Difference]: Start difference. First operand 14109 states and 20355 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 11:11:55,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:11:55,608 INFO L93 Difference]: Finished difference Result 42334 states and 61067 transitions. [2024-12-02 11:11:55,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:11:55,608 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 155 [2024-12-02 11:11:55,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:11:55,707 INFO L225 Difference]: With dead ends: 42334 [2024-12-02 11:11:55,707 INFO L226 Difference]: Without dead ends: 28249 [2024-12-02 11:11:55,793 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:11:55,794 INFO L435 NwaCegarLoop]: 2775 mSDtfsCounter, 2755 mSDsluCounter, 8279 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2756 SdHoareTripleChecker+Valid, 11054 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:11:55,794 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2756 Valid, 11054 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:11:55,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28249 states. [2024-12-02 11:11:56,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28249 to 28206. [2024-12-02 11:11:56,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28206 states, 21995 states have (on average 1.3817685837690383) internal successors, (30392), 22251 states have internal predecessors, (30392), 5128 states have call successors, (5128), 1083 states have call predecessors, (5128), 1082 states have return successors, (5159), 5023 states have call predecessors, (5159), 5127 states have call successors, (5159) [2024-12-02 11:11:56,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28206 states to 28206 states and 40679 transitions. [2024-12-02 11:11:56,854 INFO L78 Accepts]: Start accepts. Automaton has 28206 states and 40679 transitions. Word has length 155 [2024-12-02 11:11:56,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:11:56,854 INFO L471 AbstractCegarLoop]: Abstraction has 28206 states and 40679 transitions. [2024-12-02 11:11:56,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 4 states have internal predecessors, (68), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 11:11:56,855 INFO L276 IsEmpty]: Start isEmpty. Operand 28206 states and 40679 transitions. [2024-12-02 11:11:56,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-12-02 11:11:56,861 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:11:56,861 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-12-02 11:11:56,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 11:11:56,861 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:11:56,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:11:56,862 INFO L85 PathProgramCache]: Analyzing trace with hash 1789700592, now seen corresponding path program 1 times [2024-12-02 11:11:56,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:11:56,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506894603] [2024-12-02 11:11:56,862 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:11:56,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:12:03,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:12:03,779 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-12-02 11:12:03,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:12:03,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506894603] [2024-12-02 11:12:03,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506894603] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:12:03,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:12:03,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:12:03,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305964501] [2024-12-02 11:12:03,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:12:03,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:12:03,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:12:03,781 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:12:03,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:12:03,781 INFO L87 Difference]: Start difference. First operand 28206 states and 40679 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 11:12:04,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:12:04,931 INFO L93 Difference]: Finished difference Result 84448 states and 121756 transitions. [2024-12-02 11:12:04,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:12:04,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 156 [2024-12-02 11:12:04,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:12:05,188 INFO L225 Difference]: With dead ends: 84448 [2024-12-02 11:12:05,188 INFO L226 Difference]: Without dead ends: 56266 [2024-12-02 11:12:05,300 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:12:05,300 INFO L435 NwaCegarLoop]: 2775 mSDtfsCounter, 2756 mSDsluCounter, 8279 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2757 SdHoareTripleChecker+Valid, 11054 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:12:05,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2757 Valid, 11054 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:12:05,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56266 states. [2024-12-02 11:12:07,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56266 to 56185. [2024-12-02 11:12:07,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56185 states, 43815 states have (on average 1.3811023622047245) internal successors, (60513), 44317 states have internal predecessors, (60513), 10205 states have call successors, (10205), 2165 states have call predecessors, (10205), 2164 states have return successors, (10268), 10004 states have call predecessors, (10268), 10204 states have call successors, (10268) [2024-12-02 11:12:07,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56185 states to 56185 states and 80986 transitions. [2024-12-02 11:12:07,318 INFO L78 Accepts]: Start accepts. Automaton has 56185 states and 80986 transitions. Word has length 156 [2024-12-02 11:12:07,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:12:07,318 INFO L471 AbstractCegarLoop]: Abstraction has 56185 states and 80986 transitions. [2024-12-02 11:12:07,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 4 states have internal predecessors, (69), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-12-02 11:12:07,318 INFO L276 IsEmpty]: Start isEmpty. Operand 56185 states and 80986 transitions. [2024-12-02 11:12:07,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-12-02 11:12:07,324 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:12:07,324 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-12-02 11:12:07,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 11:12:07,324 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:12:07,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:12:07,325 INFO L85 PathProgramCache]: Analyzing trace with hash 985899943, now seen corresponding path program 1 times [2024-12-02 11:12:07,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:12:07,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866015262] [2024-12-02 11:12:07,325 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:12:07,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:12:13,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:12:14,122 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-12-02 11:12:14,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:12:14,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866015262] [2024-12-02 11:12:14,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866015262] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:12:14,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2131621173] [2024-12-02 11:12:14,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:12:14,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:12:14,122 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:12:14,124 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:12:14,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 11:12:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:12:20,910 INFO L256 TraceCheckSpWp]: Trace formula consists of 3685 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:12:20,913 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:12:21,025 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-12-02 11:12:21,025 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:12:21,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2131621173] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:12:21,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:12:21,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-12-02 11:12:21,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303919149] [2024-12-02 11:12:21,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:12:21,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:12:21,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:12:21,026 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:12:21,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:12:21,026 INFO L87 Difference]: Start difference. First operand 56185 states and 80986 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 11:12:21,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:12:21,642 INFO L93 Difference]: Finished difference Result 56220 states and 81052 transitions. [2024-12-02 11:12:21,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:12:21,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 166 [2024-12-02 11:12:21,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:12:21,804 INFO L225 Difference]: With dead ends: 56220 [2024-12-02 11:12:21,805 INFO L226 Difference]: Without dead ends: 56217 [2024-12-02 11:12:21,833 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:12:21,833 INFO L435 NwaCegarLoop]: 2777 mSDtfsCounter, 0 mSDsluCounter, 2772 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5549 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:12:21,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5549 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:12:21,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56217 states. [2024-12-02 11:12:22,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56217 to 56217. [2024-12-02 11:12:22,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56217 states, 43847 states have (on average 1.3808242297078477) internal successors, (60545), 44349 states have internal predecessors, (60545), 10205 states have call successors, (10205), 2165 states have call predecessors, (10205), 2164 states have return successors, (10268), 10004 states have call predecessors, (10268), 10204 states have call successors, (10268) [2024-12-02 11:12:23,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56217 states to 56217 states and 81018 transitions. [2024-12-02 11:12:23,052 INFO L78 Accepts]: Start accepts. Automaton has 56217 states and 81018 transitions. Word has length 166 [2024-12-02 11:12:23,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:12:23,052 INFO L471 AbstractCegarLoop]: Abstraction has 56217 states and 81018 transitions. [2024-12-02 11:12:23,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-12-02 11:12:23,053 INFO L276 IsEmpty]: Start isEmpty. Operand 56217 states and 81018 transitions. [2024-12-02 11:12:23,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 11:12:23,058 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:12:23,058 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-12-02 11:12:23,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-12-02 11:12:23,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-12-02 11:12:23,258 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:12:23,259 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:12:23,259 INFO L85 PathProgramCache]: Analyzing trace with hash 2008260748, now seen corresponding path program 1 times [2024-12-02 11:12:23,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:12:23,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533990384] [2024-12-02 11:12:23,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:12:23,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:12:29,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:12:29,921 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-12-02 11:12:29,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:12:29,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533990384] [2024-12-02 11:12:29,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533990384] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:12:29,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1128127174] [2024-12-02 11:12:29,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:12:29,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:12:29,921 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:12:29,923 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:12:29,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 11:12:36,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:12:36,820 INFO L256 TraceCheckSpWp]: Trace formula consists of 3690 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 11:12:36,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:12:37,484 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-12-02 11:12:37,484 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:12:37,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1128127174] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:12:37,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:12:37,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2024-12-02 11:12:37,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604695371] [2024-12-02 11:12:37,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:12:37,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:12:37,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:12:37,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:12:37,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:12:37,485 INFO L87 Difference]: Start difference. First operand 56217 states and 81018 transitions. Second operand has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 11:12:39,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:12:39,712 INFO L93 Difference]: Finished difference Result 140755 states and 202802 transitions. [2024-12-02 11:12:39,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 11:12:39,712 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 168 [2024-12-02 11:12:39,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:12:39,931 INFO L225 Difference]: With dead ends: 140755 [2024-12-02 11:12:39,931 INFO L226 Difference]: Without dead ends: 84562 [2024-12-02 11:12:40,074 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2024-12-02 11:12:40,074 INFO L435 NwaCegarLoop]: 3678 mSDtfsCounter, 2790 mSDsluCounter, 17449 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2794 SdHoareTripleChecker+Valid, 21127 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:12:40,074 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2794 Valid, 21127 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:12:40,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84562 states. [2024-12-02 11:12:41,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84562 to 84267. [2024-12-02 11:12:41,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84267 states, 65738 states have (on average 1.381012504183273) internal successors, (90785), 66510 states have internal predecessors, (90785), 15274 states have call successors, (15274), 3239 states have call predecessors, (15274), 3254 states have return successors, (15409), 14969 states have call predecessors, (15409), 15273 states have call successors, (15409) [2024-12-02 11:12:42,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84267 states to 84267 states and 121468 transitions. [2024-12-02 11:12:42,040 INFO L78 Accepts]: Start accepts. Automaton has 84267 states and 121468 transitions. Word has length 168 [2024-12-02 11:12:42,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:12:42,041 INFO L471 AbstractCegarLoop]: Abstraction has 84267 states and 121468 transitions. [2024-12-02 11:12:42,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.285714285714286) internal successors, (79), 5 states have internal predecessors, (79), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 11:12:42,041 INFO L276 IsEmpty]: Start isEmpty. Operand 84267 states and 121468 transitions. [2024-12-02 11:12:42,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-12-02 11:12:42,045 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:12:42,045 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-12-02 11:12:42,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 11:12:42,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:12:42,246 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:12:42,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:12:42,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1542269622, now seen corresponding path program 1 times [2024-12-02 11:12:42,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:12:42,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560547265] [2024-12-02 11:12:42,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:12:42,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:12:48,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:12:49,688 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-12-02 11:12:49,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:12:49,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560547265] [2024-12-02 11:12:49,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560547265] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:12:49,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1336332797] [2024-12-02 11:12:49,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:12:49,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:12:49,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:12:49,691 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:12:49,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 11:12:57,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:12:57,656 INFO L256 TraceCheckSpWp]: Trace formula consists of 3692 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 11:12:57,660 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:12:58,389 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-12-02 11:12:58,389 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:12:58,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1336332797] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:12:58,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:12:58,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-12-02 11:12:58,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889225234] [2024-12-02 11:12:58,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:12:58,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:12:58,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:12:58,390 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:12:58,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:12:58,391 INFO L87 Difference]: Start difference. First operand 84267 states and 121468 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 11:13:01,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:13:01,125 INFO L93 Difference]: Finished difference Result 196961 states and 283794 transitions. [2024-12-02 11:13:01,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 11:13:01,125 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 169 [2024-12-02 11:13:01,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:13:01,456 INFO L225 Difference]: With dead ends: 196961 [2024-12-02 11:13:01,456 INFO L226 Difference]: Without dead ends: 112718 [2024-12-02 11:13:01,674 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-12-02 11:13:01,674 INFO L435 NwaCegarLoop]: 3705 mSDtfsCounter, 2790 mSDsluCounter, 17545 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2794 SdHoareTripleChecker+Valid, 21250 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:13:01,675 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2794 Valid, 21250 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:13:01,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112718 states. [2024-12-02 11:13:04,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112718 to 112381. [2024-12-02 11:13:04,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112381 states, 87669 states have (on average 1.3809328268829346) internal successors, (121065), 88743 states have internal predecessors, (121065), 20343 states have call successors, (20343), 4313 states have call predecessors, (20343), 4368 states have return successors, (20574), 19926 states have call predecessors, (20574), 20342 states have call successors, (20574) [2024-12-02 11:13:04,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112381 states to 112381 states and 161982 transitions. [2024-12-02 11:13:04,414 INFO L78 Accepts]: Start accepts. Automaton has 112381 states and 161982 transitions. Word has length 169 [2024-12-02 11:13:04,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:13:04,414 INFO L471 AbstractCegarLoop]: Abstraction has 112381 states and 161982 transitions. [2024-12-02 11:13:04,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 5 states have internal predecessors, (80), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 11:13:04,415 INFO L276 IsEmpty]: Start isEmpty. Operand 112381 states and 161982 transitions. [2024-12-02 11:13:04,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-12-02 11:13:04,420 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:13:04,420 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-12-02 11:13:04,436 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 11:13:04,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:13:04,621 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:13:04,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:13:04,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1502369829, now seen corresponding path program 1 times [2024-12-02 11:13:04,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:13:04,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758561342] [2024-12-02 11:13:04,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:13:04,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:13:11,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:13:12,613 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-12-02 11:13:12,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:13:12,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758561342] [2024-12-02 11:13:12,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758561342] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:13:12,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905783439] [2024-12-02 11:13:12,613 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:13:12,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:13:12,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:13:12,615 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:13:12,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 11:13:19,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:13:19,795 INFO L256 TraceCheckSpWp]: Trace formula consists of 3694 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 11:13:19,799 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:13:20,475 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-12-02 11:13:20,475 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:13:20,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905783439] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:13:20,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:13:20,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-12-02 11:13:20,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37562242] [2024-12-02 11:13:20,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:13:20,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:13:20,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:13:20,476 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:13:20,476 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:13:20,476 INFO L87 Difference]: Start difference. First operand 112381 states and 161982 transitions. Second operand has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 11:13:23,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:13:23,432 INFO L93 Difference]: Finished difference Result 253167 states and 364786 transitions. [2024-12-02 11:13:23,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 11:13:23,433 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 170 [2024-12-02 11:13:23,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:13:23,830 INFO L225 Difference]: With dead ends: 253167 [2024-12-02 11:13:23,830 INFO L226 Difference]: Without dead ends: 140810 [2024-12-02 11:13:24,103 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-12-02 11:13:24,103 INFO L435 NwaCegarLoop]: 3708 mSDtfsCounter, 2790 mSDsluCounter, 17557 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2794 SdHoareTripleChecker+Valid, 21265 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:13:24,103 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2794 Valid, 21265 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:13:24,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140810 states. [2024-12-02 11:13:26,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140810 to 112425. [2024-12-02 11:13:26,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112425 states, 87701 states have (on average 1.3807938335936876) internal successors, (121097), 88779 states have internal predecessors, (121097), 20343 states have call successors, (20343), 4313 states have call predecessors, (20343), 4380 states have return successors, (20592), 19934 states have call predecessors, (20592), 20342 states have call successors, (20592) [2024-12-02 11:13:26,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112425 states to 112425 states and 162032 transitions. [2024-12-02 11:13:26,973 INFO L78 Accepts]: Start accepts. Automaton has 112425 states and 162032 transitions. Word has length 170 [2024-12-02 11:13:26,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:13:26,973 INFO L471 AbstractCegarLoop]: Abstraction has 112425 states and 162032 transitions. [2024-12-02 11:13:26,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.571428571428571) internal successors, (81), 5 states have internal predecessors, (81), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 11:13:26,973 INFO L276 IsEmpty]: Start isEmpty. Operand 112425 states and 162032 transitions. [2024-12-02 11:13:26,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-12-02 11:13:26,978 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:13:26,978 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-12-02 11:13:26,991 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 11:13:27,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-12-02 11:13:27,178 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:13:27,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:13:27,179 INFO L85 PathProgramCache]: Analyzing trace with hash -1456123773, now seen corresponding path program 1 times [2024-12-02 11:13:27,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:13:27,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781530855] [2024-12-02 11:13:27,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:13:27,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:13:33,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:13:34,334 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-12-02 11:13:34,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:13:34,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781530855] [2024-12-02 11:13:34,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781530855] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:13:34,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929588545] [2024-12-02 11:13:34,334 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:13:34,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:13:34,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:13:34,336 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:13:34,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 11:13:41,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:13:41,876 INFO L256 TraceCheckSpWp]: Trace formula consists of 3696 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 11:13:41,881 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:13:42,597 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-12-02 11:13:42,597 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:13:42,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929588545] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:13:42,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:13:42,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-12-02 11:13:42,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546871821] [2024-12-02 11:13:42,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:13:42,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:13:42,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:13:42,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:13:42,599 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:13:42,599 INFO L87 Difference]: Start difference. First operand 112425 states and 162032 transitions. Second operand has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 11:13:46,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:13:46,711 INFO L93 Difference]: Finished difference Result 253227 states and 364852 transitions. [2024-12-02 11:13:46,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 11:13:46,712 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) Word has length 171 [2024-12-02 11:13:46,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:13:47,266 INFO L225 Difference]: With dead ends: 253227 [2024-12-02 11:13:47,266 INFO L226 Difference]: Without dead ends: 140826 [2024-12-02 11:13:47,654 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-12-02 11:13:47,654 INFO L435 NwaCegarLoop]: 3705 mSDtfsCounter, 2790 mSDsluCounter, 17545 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2794 SdHoareTripleChecker+Valid, 21250 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:13:47,655 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2794 Valid, 21250 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:13:47,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140826 states. [2024-12-02 11:13:51,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140826 to 112451. [2024-12-02 11:13:51,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112451 states, 87721 states have (on average 1.3807070142839228) internal successors, (121117), 88797 states have internal predecessors, (121117), 20343 states have call successors, (20343), 4313 states have call predecessors, (20343), 4386 states have return successors, (20598), 19942 states have call predecessors, (20598), 20342 states have call successors, (20598) [2024-12-02 11:13:52,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112451 states to 112451 states and 162058 transitions. [2024-12-02 11:13:52,092 INFO L78 Accepts]: Start accepts. Automaton has 112451 states and 162058 transitions. Word has length 171 [2024-12-02 11:13:52,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:13:52,092 INFO L471 AbstractCegarLoop]: Abstraction has 112451 states and 162058 transitions. [2024-12-02 11:13:52,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.714285714285714) internal successors, (82), 5 states have internal predecessors, (82), 3 states have call successors, (22), 3 states have call predecessors, (22), 3 states have return successors, (16), 3 states have call predecessors, (16), 2 states have call successors, (16) [2024-12-02 11:13:52,092 INFO L276 IsEmpty]: Start isEmpty. Operand 112451 states and 162058 transitions. [2024-12-02 11:13:52,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-12-02 11:13:52,097 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:13:52,098 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:13:52,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 11:13:52,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-12-02 11:13:52,298 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:13:52,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:13:52,299 INFO L85 PathProgramCache]: Analyzing trace with hash -166823955, now seen corresponding path program 1 times [2024-12-02 11:13:52,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:13:52,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643907803] [2024-12-02 11:13:52,299 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:13:52,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:13:58,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:13:59,675 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-12-02 11:13:59,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:13:59,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643907803] [2024-12-02 11:13:59,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643907803] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:13:59,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1744582949] [2024-12-02 11:13:59,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:13:59,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:13:59,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:13:59,678 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:13:59,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 11:14:07,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:14:07,662 INFO L256 TraceCheckSpWp]: Trace formula consists of 3759 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 11:14:07,665 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:14:08,939 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-12-02 11:14:08,939 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:14:11,572 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-12-02 11:14:11,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1744582949] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:14:11,572 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:14:11,572 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 18 [2024-12-02 11:14:11,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665372953] [2024-12-02 11:14:11,573 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:14:11,573 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 11:14:11,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:14:11,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 11:14:11,574 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-12-02 11:14:11,574 INFO L87 Difference]: Start difference. First operand 112451 states and 162058 transitions. Second operand has 18 states, 18 states have (on average 7.944444444444445) internal successors, (143), 14 states have internal predecessors, (143), 5 states have call successors, (39), 4 states have call predecessors, (39), 7 states have return successors, (32), 6 states have call predecessors, (32), 5 states have call successors, (32) [2024-12-02 11:14:15,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:14:19,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:14:24,309 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:14:28,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:16:05,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:16:05,125 INFO L93 Difference]: Finished difference Result 306847 states and 443570 transitions. [2024-12-02 11:16:05,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-12-02 11:16:05,126 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.944444444444445) internal successors, (143), 14 states have internal predecessors, (143), 5 states have call successors, (39), 4 states have call predecessors, (39), 7 states have return successors, (32), 6 states have call predecessors, (32), 5 states have call successors, (32) Word has length 184 [2024-12-02 11:16:05,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:16:05,633 INFO L225 Difference]: With dead ends: 306847 [2024-12-02 11:16:05,633 INFO L226 Difference]: Without dead ends: 194364 [2024-12-02 11:16:05,874 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 360 SyntacticMatches, 8 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1966 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=785, Invalid=5695, Unknown=0, NotChecked=0, Total=6480 [2024-12-02 11:16:05,875 INFO L435 NwaCegarLoop]: 6144 mSDtfsCounter, 19618 mSDsluCounter, 63451 mSDsCounter, 0 mSdLazyCounter, 8042 mSolverCounterSat, 3438 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 94.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19638 SdHoareTripleChecker+Valid, 69595 SdHoareTripleChecker+Invalid, 11484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 3438 IncrementalHoareTripleChecker+Valid, 8042 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 97.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:16:05,875 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19638 Valid, 69595 Invalid, 11484 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [3438 Valid, 8042 Invalid, 4 Unknown, 0 Unchecked, 97.6s Time] [2024-12-02 11:16:05,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194364 states. [2024-12-02 11:16:09,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194364 to 182349. [2024-12-02 11:16:10,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182349 states, 142256 states have (on average 1.3809470250815432) internal successors, (196448), 144026 states have internal predecessors, (196448), 32984 states have call successors, (32984), 6985 states have call predecessors, (32984), 7108 states have return successors, (33405), 32313 states have call predecessors, (33405), 32983 states have call successors, (33405) [2024-12-02 11:16:10,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182349 states to 182349 states and 262837 transitions. [2024-12-02 11:16:10,642 INFO L78 Accepts]: Start accepts. Automaton has 182349 states and 262837 transitions. Word has length 184 [2024-12-02 11:16:10,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:16:10,643 INFO L471 AbstractCegarLoop]: Abstraction has 182349 states and 262837 transitions. [2024-12-02 11:16:10,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.944444444444445) internal successors, (143), 14 states have internal predecessors, (143), 5 states have call successors, (39), 4 states have call predecessors, (39), 7 states have return successors, (32), 6 states have call predecessors, (32), 5 states have call successors, (32) [2024-12-02 11:16:10,643 INFO L276 IsEmpty]: Start isEmpty. Operand 182349 states and 262837 transitions. [2024-12-02 11:16:10,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-12-02 11:16:10,651 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:16:10,652 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:16:10,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 11:16:10,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-12-02 11:16:10,852 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:16:10,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:16:10,853 INFO L85 PathProgramCache]: Analyzing trace with hash -1981185102, now seen corresponding path program 1 times [2024-12-02 11:16:10,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:16:10,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462370149] [2024-12-02 11:16:10,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:16:10,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:16:18,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:16:20,109 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-12-02 11:16:20,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:16:20,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462370149] [2024-12-02 11:16:20,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462370149] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:16:20,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012603600] [2024-12-02 11:16:20,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:16:20,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:16:20,110 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:16:20,112 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:16:20,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 11:16:30,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:16:30,194 INFO L256 TraceCheckSpWp]: Trace formula consists of 3761 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 11:16:30,199 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:16:32,774 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-12-02 11:16:32,774 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:16:37,995 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-12-02 11:16:37,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012603600] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:16:37,996 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:16:37,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 18 [2024-12-02 11:16:37,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061765048] [2024-12-02 11:16:37,996 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:16:37,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 11:16:37,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:16:37,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 11:16:37,998 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-12-02 11:16:37,998 INFO L87 Difference]: Start difference. First operand 182349 states and 262837 transitions. Second operand has 18 states, 18 states have (on average 8.055555555555555) internal successors, (145), 14 states have internal predecessors, (145), 5 states have call successors, (39), 4 states have call predecessors, (39), 7 states have return successors, (32), 6 states have call predecessors, (32), 5 states have call successors, (32) [2024-12-02 11:16:42,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:16:46,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:16:50,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:16:55,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:18:56,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:18:56,418 INFO L93 Difference]: Finished difference Result 446695 states and 645180 transitions. [2024-12-02 11:18:56,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-12-02 11:18:56,419 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 8.055555555555555) internal successors, (145), 14 states have internal predecessors, (145), 5 states have call successors, (39), 4 states have call predecessors, (39), 7 states have return successors, (32), 6 states have call predecessors, (32), 5 states have call successors, (32) Word has length 185 [2024-12-02 11:18:56,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:18:57,410 INFO L225 Difference]: With dead ends: 446695 [2024-12-02 11:18:57,410 INFO L226 Difference]: Without dead ends: 264314 [2024-12-02 11:18:57,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 362 SyntacticMatches, 8 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1995 ImplicationChecksByTransitivity, 20.6s TimeCoverageRelationStatistics Valid=785, Invalid=5695, Unknown=0, NotChecked=0, Total=6480 [2024-12-02 11:18:57,977 INFO L435 NwaCegarLoop]: 5616 mSDtfsCounter, 18617 mSDsluCounter, 68676 mSDsCounter, 0 mSdLazyCounter, 7450 mSolverCounterSat, 3075 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 111.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18637 SdHoareTripleChecker+Valid, 74292 SdHoareTripleChecker+Invalid, 10529 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 3075 IncrementalHoareTripleChecker+Valid, 7450 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 115.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:18:57,977 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18637 Valid, 74292 Invalid, 10529 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [3075 Valid, 7450 Invalid, 4 Unknown, 0 Unchecked, 115.1s Time] [2024-12-02 11:18:58,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264314 states. [2024-12-02 11:19:03,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264314 to 189369. [2024-12-02 11:19:03,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189369 states, 147734 states have (on average 1.3810023420471929) internal successors, (204021), 149572 states have internal predecessors, (204021), 34256 states have call successors, (34256), 7251 states have call predecessors, (34256), 7378 states have return successors, (34691), 33559 states have call predecessors, (34691), 34255 states have call successors, (34691) [2024-12-02 11:19:04,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189369 states to 189369 states and 272968 transitions. [2024-12-02 11:19:04,985 INFO L78 Accepts]: Start accepts. Automaton has 189369 states and 272968 transitions. Word has length 185 [2024-12-02 11:19:04,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:19:04,985 INFO L471 AbstractCegarLoop]: Abstraction has 189369 states and 272968 transitions. [2024-12-02 11:19:04,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.055555555555555) internal successors, (145), 14 states have internal predecessors, (145), 5 states have call successors, (39), 4 states have call predecessors, (39), 7 states have return successors, (32), 6 states have call predecessors, (32), 5 states have call successors, (32) [2024-12-02 11:19:04,986 INFO L276 IsEmpty]: Start isEmpty. Operand 189369 states and 272968 transitions. [2024-12-02 11:19:04,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-12-02 11:19:04,995 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:19:04,995 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:19:05,015 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-12-02 11:19:05,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-02 11:19:05,196 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:19:05,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:19:05,196 INFO L85 PathProgramCache]: Analyzing trace with hash 398525332, now seen corresponding path program 1 times [2024-12-02 11:19:05,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:19:05,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468428774] [2024-12-02 11:19:05,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:19:05,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:19:13,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:19:14,583 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2024-12-02 11:19:14,583 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:19:14,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468428774] [2024-12-02 11:19:14,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468428774] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:19:14,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [118928022] [2024-12-02 11:19:14,584 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:19:14,584 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:19:14,584 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:19:14,587 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:19:14,588 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 11:19:24,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:19:24,052 INFO L256 TraceCheckSpWp]: Trace formula consists of 3763 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 11:19:24,057 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:19:27,039 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-12-02 11:19:27,039 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:19:32,838 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-12-02 11:19:32,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [118928022] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:19:32,838 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:19:32,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 18 [2024-12-02 11:19:32,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457883974] [2024-12-02 11:19:32,839 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:19:32,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 11:19:32,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:19:32,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 11:19:32,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-12-02 11:19:32,841 INFO L87 Difference]: Start difference. First operand 189369 states and 272968 transitions. Second operand has 18 states, 18 states have (on average 8.166666666666666) internal successors, (147), 14 states have internal predecessors, (147), 5 states have call successors, (39), 4 states have call predecessors, (39), 7 states have return successors, (32), 6 states have call predecessors, (32), 5 states have call successors, (32) [2024-12-02 11:19:36,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:19:41,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:19:45,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:19:49,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.37s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:21:53,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:21:53,673 INFO L93 Difference]: Finished difference Result 432685 states and 625006 transitions. [2024-12-02 11:21:53,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-12-02 11:21:53,674 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 8.166666666666666) internal successors, (147), 14 states have internal predecessors, (147), 5 states have call successors, (39), 4 states have call predecessors, (39), 7 states have return successors, (32), 6 states have call predecessors, (32), 5 states have call successors, (32) Word has length 186 [2024-12-02 11:21:53,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:21:55,314 INFO L225 Difference]: With dead ends: 432685 [2024-12-02 11:21:55,314 INFO L226 Difference]: Without dead ends: 243284 [2024-12-02 11:21:55,887 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 451 GetRequests, 364 SyntacticMatches, 8 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2014 ImplicationChecksByTransitivity, 21.7s TimeCoverageRelationStatistics Valid=785, Invalid=5695, Unknown=0, NotChecked=0, Total=6480 [2024-12-02 11:21:55,887 INFO L435 NwaCegarLoop]: 4684 mSDtfsCounter, 19421 mSDsluCounter, 51559 mSDsCounter, 0 mSdLazyCounter, 7239 mSolverCounterSat, 3430 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 113.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19442 SdHoareTripleChecker+Valid, 56243 SdHoareTripleChecker+Invalid, 10673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 3430 IncrementalHoareTripleChecker+Valid, 7239 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 117.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:21:55,888 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19442 Valid, 56243 Invalid, 10673 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [3430 Valid, 7239 Invalid, 4 Unknown, 0 Unchecked, 117.5s Time] [2024-12-02 11:21:56,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243284 states. [2024-12-02 11:22:00,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243284 to 164804. [2024-12-02 11:22:01,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164804 states, 128570 states have (on average 1.3810064556272847) internal successors, (177556), 130143 states have internal predecessors, (177556), 29824 states have call successors, (29824), 6310 states have call predecessors, (29824), 6409 states have return successors, (30195), 29233 states have call predecessors, (30195), 29823 states have call successors, (30195) [2024-12-02 11:22:01,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164804 states to 164804 states and 237575 transitions. [2024-12-02 11:22:02,006 INFO L78 Accepts]: Start accepts. Automaton has 164804 states and 237575 transitions. Word has length 186 [2024-12-02 11:22:02,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:22:02,006 INFO L471 AbstractCegarLoop]: Abstraction has 164804 states and 237575 transitions. [2024-12-02 11:22:02,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 8.166666666666666) internal successors, (147), 14 states have internal predecessors, (147), 5 states have call successors, (39), 4 states have call predecessors, (39), 7 states have return successors, (32), 6 states have call predecessors, (32), 5 states have call successors, (32) [2024-12-02 11:22:02,006 INFO L276 IsEmpty]: Start isEmpty. Operand 164804 states and 237575 transitions. [2024-12-02 11:22:02,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2024-12-02 11:22:02,016 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:22:02,016 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:22:02,246 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forcibly destroying the process [2024-12-02 11:22:02,246 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-12-02 11:22:02,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-12-02 11:22:02,246 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:22:02,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:22:02,247 WARN L724 oredProcess$PipePump]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_259ee975-6c09-49f7-a74f-ff43c502f525/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] The stream was forcibly closed: stdIn [2024-12-02 11:22:02,247 INFO L85 PathProgramCache]: Analyzing trace with hash 833006031, now seen corresponding path program 1 times [2024-12-02 11:22:02,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:22:02,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589156042] [2024-12-02 11:22:02,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:22:02,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:22:10,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:22:10,555 INFO L134 CoverageAnalysis]: Checked inductivity of 204 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-12-02 11:22:10,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:22:10,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589156042] [2024-12-02 11:22:10,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589156042] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:22:10,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:22:10,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:22:10,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277667439] [2024-12-02 11:22:10,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:22:10,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:22:10,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:22:10,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:22:10,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:22:10,558 INFO L87 Difference]: Start difference. First operand 164804 states and 237575 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-12-02 11:22:17,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:22:17,977 INFO L93 Difference]: Finished difference Result 461615 states and 666098 transitions. [2024-12-02 11:22:17,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:22:17,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 243 [2024-12-02 11:22:17,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:22:19,121 INFO L225 Difference]: With dead ends: 461615 [2024-12-02 11:22:19,121 INFO L226 Difference]: Without dead ends: 296835 [2024-12-02 11:22:19,655 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 11:22:19,656 INFO L435 NwaCegarLoop]: 3808 mSDtfsCounter, 2266 mSDsluCounter, 2697 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2266 SdHoareTripleChecker+Valid, 6505 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-02 11:22:19,656 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2266 Valid, 6505 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-02 11:22:19,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296835 states. [2024-12-02 11:22:27,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296835 to 294858. [2024-12-02 11:22:27,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294858 states, 231703 states have (on average 1.385100753982469) internal successors, (320932), 234567 states have internal predecessors, (320932), 51934 states have call successors, (51934), 11021 states have call predecessors, (51934), 11220 states have return successors, (52489), 50706 states have call predecessors, (52489), 51933 states have call successors, (52489) [2024-12-02 11:22:29,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294858 states to 294858 states and 425355 transitions. [2024-12-02 11:22:29,937 INFO L78 Accepts]: Start accepts. Automaton has 294858 states and 425355 transitions. Word has length 243 [2024-12-02 11:22:29,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:22:29,938 INFO L471 AbstractCegarLoop]: Abstraction has 294858 states and 425355 transitions. [2024-12-02 11:22:29,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-12-02 11:22:29,938 INFO L276 IsEmpty]: Start isEmpty. Operand 294858 states and 425355 transitions. [2024-12-02 11:22:29,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-12-02 11:22:29,974 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:22:29,975 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:22:29,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 11:22:29,975 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:22:29,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:22:29,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1893221233, now seen corresponding path program 1 times [2024-12-02 11:22:29,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:22:29,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914381761] [2024-12-02 11:22:29,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:22:29,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:22:38,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:22:38,338 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2024-12-02 11:22:38,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:22:38,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914381761] [2024-12-02 11:22:38,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914381761] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:22:38,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:22:38,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:22:38,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99792914] [2024-12-02 11:22:38,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:22:38,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:22:38,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:22:38,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:22:38,340 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:22:38,341 INFO L87 Difference]: Start difference. First operand 294858 states and 425355 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-12-02 11:22:48,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:22:48,147 INFO L93 Difference]: Finished difference Result 589682 states and 850670 transitions. [2024-12-02 11:22:48,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:22:48,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 295 [2024-12-02 11:22:48,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:22:49,809 INFO L225 Difference]: With dead ends: 589682 [2024-12-02 11:22:49,809 INFO L226 Difference]: Without dead ends: 294858 [2024-12-02 11:22:50,921 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 11:22:50,922 INFO L435 NwaCegarLoop]: 2776 mSDtfsCounter, 2751 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2751 SdHoareTripleChecker+Valid, 2776 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:22:50,922 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2751 Valid, 2776 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:22:51,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294858 states. [2024-12-02 11:23:00,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294858 to 294858. [2024-12-02 11:23:00,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294858 states, 231703 states have (on average 1.3846950622132643) internal successors, (320838), 234567 states have internal predecessors, (320838), 51934 states have call successors, (51934), 11021 states have call predecessors, (51934), 11220 states have return successors, (52489), 50706 states have call predecessors, (52489), 51933 states have call successors, (52489) [2024-12-02 11:23:02,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294858 states to 294858 states and 425261 transitions. [2024-12-02 11:23:02,456 INFO L78 Accepts]: Start accepts. Automaton has 294858 states and 425261 transitions. Word has length 295 [2024-12-02 11:23:02,457 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:23:02,457 INFO L471 AbstractCegarLoop]: Abstraction has 294858 states and 425261 transitions. [2024-12-02 11:23:02,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-12-02 11:23:02,457 INFO L276 IsEmpty]: Start isEmpty. Operand 294858 states and 425261 transitions. [2024-12-02 11:23:02,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2024-12-02 11:23:02,481 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:23:02,482 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:23:02,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 11:23:02,482 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:23:02,483 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:23:02,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1914672337, now seen corresponding path program 1 times [2024-12-02 11:23:02,483 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:23:02,483 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528554989] [2024-12-02 11:23:02,483 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:23:02,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:23:10,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:23:10,946 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2024-12-02 11:23:10,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:23:10,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528554989] [2024-12-02 11:23:10,947 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528554989] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:23:10,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:23:10,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:23:10,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309895619] [2024-12-02 11:23:10,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:23:10,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:23:10,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:23:10,948 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:23:10,949 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:23:10,949 INFO L87 Difference]: Start difference. First operand 294858 states and 425261 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-12-02 11:23:20,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:23:20,102 INFO L93 Difference]: Finished difference Result 589964 states and 850858 transitions. [2024-12-02 11:23:20,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:23:20,102 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 295 [2024-12-02 11:23:20,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:23:21,710 INFO L225 Difference]: With dead ends: 589964 [2024-12-02 11:23:21,711 INFO L226 Difference]: Without dead ends: 295140