./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.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_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/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_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/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_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/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 410663f06ff647e412b04b4e33dc5a0aa773139e9be33f59003b35b6e81927a8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 15:23:01,538 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 15:23:01,591 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 15:23:01,594 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 15:23:01,594 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 15:23:01,615 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 15:23:01,615 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 15:23:01,615 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 15:23:01,616 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 15:23:01,616 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 15:23:01,616 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 15:23:01,616 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 15:23:01,616 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 15:23:01,617 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 15:23:01,617 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 15:23:01,617 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 15:23:01,617 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 15:23:01,617 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 15:23:01,617 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 15:23:01,617 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 15:23:01,617 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 15:23:01,617 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 15:23:01,617 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 15:23:01,618 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 15:23:01,618 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 15:23:01,618 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 15:23:01,618 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:23:01,618 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:23:01,618 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:23:01,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:23:01,618 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 15:23:01,619 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 15:23:01,619 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 15:23:01,619 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 15:23:01,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:23:01,619 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 15:23:01,619 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 15:23:01,619 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 15:23:01,619 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 15:23:01,619 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 15:23:01,619 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 15:23:01,620 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 15:23:01,620 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 15:23:01,620 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 15:23:01,620 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 15:23:01,620 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_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/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 -> 410663f06ff647e412b04b4e33dc5a0aa773139e9be33f59003b35b6e81927a8 [2024-12-02 15:23:01,828 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 15:23:01,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 15:23:01,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 15:23:01,838 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 15:23:01,838 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 15:23:01,839 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i [2024-12-02 15:23:04,447 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/data/cbce21494/3e2b19a32e074e6999174e459cea21c5/FLAGd10ec6e27 [2024-12-02 15:23:04,777 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 15:23:04,777 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i [2024-12-02 15:23:04,796 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/data/cbce21494/3e2b19a32e074e6999174e459cea21c5/FLAGd10ec6e27 [2024-12-02 15:23:05,026 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/data/cbce21494/3e2b19a32e074e6999174e459cea21c5 [2024-12-02 15:23:05,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 15:23:05,028 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 15:23:05,029 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 15:23:05,029 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 15:23:05,032 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 15:23:05,033 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:23:05" (1/1) ... [2024-12-02 15:23:05,033 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e53db93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:05, skipping insertion in model container [2024-12-02 15:23:05,033 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 03:23:05" (1/1) ... [2024-12-02 15:23:05,082 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 15:23:05,630 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_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i[108133,108146] [2024-12-02 15:23:05,694 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:23:05,727 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 15:23:05,791 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; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [2808] [2024-12-02 15:23:05,793 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 %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [2815-2816] [2024-12-02 15:23:05,869 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_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i[108133,108146] [2024-12-02 15:23:05,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 15:23:05,938 INFO L204 MainTranslator]: Completed translation [2024-12-02 15:23:05,938 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:05 WrapperNode [2024-12-02 15:23:05,939 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 15:23:05,940 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 15:23:05,940 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 15:23:05,940 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 15:23:05,945 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:05" (1/1) ... [2024-12-02 15:23:05,976 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:05" (1/1) ... [2024-12-02 15:23:06,046 INFO L138 Inliner]: procedures = 133, calls = 1232, calls flagged for inlining = 49, calls inlined = 41, statements flattened = 1948 [2024-12-02 15:23:06,046 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 15:23:06,046 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 15:23:06,046 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 15:23:06,047 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 15:23:06,056 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:05" (1/1) ... [2024-12-02 15:23:06,056 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:05" (1/1) ... [2024-12-02 15:23:06,072 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:05" (1/1) ... [2024-12-02 15:23:06,140 INFO L175 MemorySlicer]: Split 952 memory accesses to 22 slices as follows [273, 2, 3, 512, 5, 32, 3, 1, 24, 6, 1, 2, 3, 28, 14, 11, 1, 13, 5, 5, 2, 6]. 54 percent of accesses are in the largest equivalence class. The 780 initializations are split as follows [180, 2, 3, 512, 5, 24, 0, 1, 0, 4, 0, 0, 0, 0, 14, 11, 0, 13, 0, 5, 0, 6]. The 103 writes are split as follows [40, 0, 0, 0, 0, 0, 1, 0, 24, 0, 0, 1, 2, 28, 0, 0, 0, 0, 5, 0, 2, 0]. [2024-12-02 15:23:06,140 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:05" (1/1) ... [2024-12-02 15:23:06,140 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:05" (1/1) ... [2024-12-02 15:23:06,216 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:05" (1/1) ... [2024-12-02 15:23:06,220 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:05" (1/1) ... [2024-12-02 15:23:06,227 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:05" (1/1) ... [2024-12-02 15:23:06,238 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:05" (1/1) ... [2024-12-02 15:23:06,245 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:05" (1/1) ... [2024-12-02 15:23:06,259 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 15:23:06,260 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 15:23:06,260 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 15:23:06,260 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 15:23:06,261 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:05" (1/1) ... [2024-12-02 15:23:06,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 15:23:06,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:23:06,287 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 15:23:06,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 15:23:06,312 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2024-12-02 15:23:06,312 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2024-12-02 15:23:06,312 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2024-12-02 15:23:06,313 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2024-12-02 15:23:06,313 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2024-12-02 15:23:06,313 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2024-12-02 15:23:06,313 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2024-12-02 15:23:06,313 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2024-12-02 15:23:06,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 15:23:06,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 15:23:06,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 15:23:06,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 15:23:06,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 15:23:06,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 15:23:06,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 15:23:06,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-02 15:23:06,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-12-02 15:23:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-12-02 15:23:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-12-02 15:23:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-12-02 15:23:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-12-02 15:23:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-12-02 15:23:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-12-02 15:23:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-12-02 15:23:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2024-12-02 15:23:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2024-12-02 15:23:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2024-12-02 15:23:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2024-12-02 15:23:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#20 [2024-12-02 15:23:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#21 [2024-12-02 15:23:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 15:23:06,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 15:23:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 15:23:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 15:23:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 15:23:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 15:23:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 15:23:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 15:23:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-12-02 15:23:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-12-02 15:23:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-12-02 15:23:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-12-02 15:23:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-12-02 15:23:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-12-02 15:23:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-12-02 15:23:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2024-12-02 15:23:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2024-12-02 15:23:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2024-12-02 15:23:06,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2024-12-02 15:23:06,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#19 [2024-12-02 15:23:06,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#20 [2024-12-02 15:23:06,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#21 [2024-12-02 15:23:06,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 15:23:06,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 15:23:06,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 15:23:06,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 15:23:06,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 15:23:06,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 15:23:06,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 15:23:06,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 15:23:06,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 15:23:06,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-12-02 15:23:06,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-12-02 15:23:06,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-12-02 15:23:06,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-12-02 15:23:06,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-12-02 15:23:06,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-12-02 15:23:06,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-12-02 15:23:06,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-12-02 15:23:06,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-12-02 15:23:06,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-12-02 15:23:06,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-12-02 15:23:06,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2024-12-02 15:23:06,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2024-12-02 15:23:06,317 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2024-12-02 15:23:06,317 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2024-12-02 15:23:06,317 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-12-02 15:23:06,317 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-12-02 15:23:06,317 INFO L130 BoogieDeclarations]: Found specification of procedure pg_sleep [2024-12-02 15:23:06,317 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_sleep [2024-12-02 15:23:06,317 INFO L130 BoogieDeclarations]: Found specification of procedure pg_completion [2024-12-02 15:23:06,317 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_completion [2024-12-02 15:23:06,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 15:23:06,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 15:23:06,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 15:23:06,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 15:23:06,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 15:23:06,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 15:23:06,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 15:23:06,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 15:23:06,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 15:23:06,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-12-02 15:23:06,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-12-02 15:23:06,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-12-02 15:23:06,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-12-02 15:23:06,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-12-02 15:23:06,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-12-02 15:23:06,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-12-02 15:23:06,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-12-02 15:23:06,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-12-02 15:23:06,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-12-02 15:23:06,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-12-02 15:23:06,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2024-12-02 15:23:06,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2024-12-02 15:23:06,320 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-12-02 15:23:06,320 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-12-02 15:23:06,320 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2024-12-02 15:23:06,320 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2024-12-02 15:23:06,320 INFO L130 BoogieDeclarations]: Found specification of procedure pg_wait [2024-12-02 15:23:06,320 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_wait [2024-12-02 15:23:06,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-12-02 15:23:06,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-12-02 15:23:06,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-12-02 15:23:06,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-12-02 15:23:06,320 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-12-02 15:23:06,320 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-12-02 15:23:06,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 15:23:06,320 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-12-02 15:23:06,320 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-12-02 15:23:06,320 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2024-12-02 15:23:06,320 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2024-12-02 15:23:06,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 15:23:06,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_11 [2024-12-02 15:23:06,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_11 [2024-12-02 15:23:06,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 15:23:06,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 15:23:06,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 15:23:06,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 15:23:06,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 15:23:06,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 15:23:06,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 15:23:06,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 15:23:06,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 15:23:06,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-12-02 15:23:06,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-12-02 15:23:06,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-12-02 15:23:06,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-12-02 15:23:06,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-12-02 15:23:06,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-12-02 15:23:06,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-12-02 15:23:06,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-12-02 15:23:06,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-12-02 15:23:06,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-12-02 15:23:06,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-12-02 15:23:06,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-12-02 15:23:06,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2024-12-02 15:23:06,322 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#21 [2024-12-02 15:23:06,322 INFO L130 BoogieDeclarations]: Found specification of procedure DRIVE [2024-12-02 15:23:06,322 INFO L138 BoogieDeclarations]: Found implementation of procedure DRIVE [2024-12-02 15:23:06,322 INFO L130 BoogieDeclarations]: Found specification of procedure pg_write [2024-12-02 15:23:06,322 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_write [2024-12-02 15:23:06,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 15:23:06,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 15:23:06,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 15:23:06,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 15:23:06,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 15:23:06,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 15:23:06,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 15:23:06,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 15:23:06,322 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-12-02 15:23:06,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-12-02 15:23:06,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-12-02 15:23:06,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-12-02 15:23:06,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-12-02 15:23:06,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-12-02 15:23:06,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-12-02 15:23:06,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-12-02 15:23:06,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-12-02 15:23:06,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-12-02 15:23:06,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-12-02 15:23:06,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-12-02 15:23:06,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2024-12-02 15:23:06,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#21 [2024-12-02 15:23:06,323 INFO L130 BoogieDeclarations]: Found specification of procedure pg_reset [2024-12-02 15:23:06,323 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_reset [2024-12-02 15:23:06,323 INFO L130 BoogieDeclarations]: Found specification of procedure pg_identify [2024-12-02 15:23:06,323 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_identify [2024-12-02 15:23:06,323 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2024-12-02 15:23:06,323 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2024-12-02 15:23:06,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 15:23:06,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 15:23:06,323 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 15:23:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 15:23:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 15:23:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 15:23:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 15:23:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-12-02 15:23:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-12-02 15:23:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-12-02 15:23:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-12-02 15:23:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-12-02 15:23:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-12-02 15:23:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-12-02 15:23:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-12-02 15:23:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-12-02 15:23:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-12-02 15:23:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-12-02 15:23:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-12-02 15:23:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-12-02 15:23:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2024-12-02 15:23:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2024-12-02 15:23:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#21 [2024-12-02 15:23:06,324 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2024-12-02 15:23:06,325 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2024-12-02 15:23:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2024-12-02 15:23:06,325 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2024-12-02 15:23:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-12-02 15:23:06,325 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-12-02 15:23:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-12-02 15:23:06,325 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-12-02 15:23:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure pg_probe [2024-12-02 15:23:06,325 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_probe [2024-12-02 15:23:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2024-12-02 15:23:06,325 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2024-12-02 15:23:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure pg_command [2024-12-02 15:23:06,325 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_command [2024-12-02 15:23:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 15:23:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 15:23:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 15:23:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 15:23:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 15:23:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 15:23:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 15:23:06,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 15:23:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 15:23:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 15:23:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 15:23:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 15:23:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 15:23:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 15:23:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 15:23:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-12-02 15:23:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-12-02 15:23:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-12-02 15:23:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-12-02 15:23:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-12-02 15:23:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2024-12-02 15:23:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2024-12-02 15:23:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-12-02 15:23:06,326 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-12-02 15:23:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 15:23:06,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 15:23:06,326 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2024-12-02 15:23:06,326 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2024-12-02 15:23:06,685 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 15:23:06,687 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 15:23:12,899 INFO L? ?]: Removed 571 outVars from TransFormulas that were not future-live. [2024-12-02 15:23:12,899 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 15:23:12,916 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 15:23:12,916 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-02 15:23:12,917 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:23:12 BoogieIcfgContainer [2024-12-02 15:23:12,917 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 15:23:12,919 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 15:23:12,919 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 15:23:12,923 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 15:23:12,923 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 03:23:05" (1/3) ... [2024-12-02 15:23:12,924 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f1548b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:23:12, skipping insertion in model container [2024-12-02 15:23:12,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 03:23:05" (2/3) ... [2024-12-02 15:23:12,924 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f1548b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 03:23:12, skipping insertion in model container [2024-12-02 15:23:12,924 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:23:12" (3/3) ... [2024-12-02 15:23:12,925 INFO L128 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i [2024-12-02 15:23:12,939 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 15:23:12,941 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i that has 32 procedures, 529 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-12-02 15:23:13,001 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 15:23:13,012 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;@9932e02, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 15:23:13,012 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 15:23:13,017 INFO L276 IsEmpty]: Start isEmpty. Operand has 529 states, 394 states have (on average 1.368020304568528) internal successors, (539), 404 states have internal predecessors, (539), 102 states have call successors, (102), 31 states have call predecessors, (102), 31 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2024-12-02 15:23:13,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-12-02 15:23:13,024 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:13,025 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:23:13,025 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:13,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:13,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1705185471, now seen corresponding path program 1 times [2024-12-02 15:23:13,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:13,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56162560] [2024-12-02 15:23:13,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:13,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:13,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:14,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:14,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:14,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56162560] [2024-12-02 15:23:14,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56162560] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:14,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:14,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:23:14,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220081130] [2024-12-02 15:23:14,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:14,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:23:14,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:14,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:23:14,146 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:23:14,149 INFO L87 Difference]: Start difference. First operand has 529 states, 394 states have (on average 1.368020304568528) internal successors, (539), 404 states have internal predecessors, (539), 102 states have call successors, (102), 31 states have call predecessors, (102), 31 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:23:14,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:14,351 INFO L93 Difference]: Finished difference Result 1382 states and 1968 transitions. [2024-12-02 15:23:14,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:23:14,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2024-12-02 15:23:14,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:14,368 INFO L225 Difference]: With dead ends: 1382 [2024-12-02 15:23:14,368 INFO L226 Difference]: Without dead ends: 848 [2024-12-02 15:23:14,373 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 15:23:14,376 INFO L435 NwaCegarLoop]: 904 mSDtfsCounter, 462 mSDsluCounter, 694 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 462 SdHoareTripleChecker+Valid, 1598 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:14,376 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [462 Valid, 1598 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 15:23:14,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 848 states. [2024-12-02 15:23:14,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 848 to 820. [2024-12-02 15:23:14,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 604 states have (on average 1.3526490066225165) internal successors, (817), 614 states have internal predecessors, (817), 165 states have call successors, (165), 51 states have call predecessors, (165), 50 states have return successors, (159), 159 states have call predecessors, (159), 159 states have call successors, (159) [2024-12-02 15:23:14,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1141 transitions. [2024-12-02 15:23:14,465 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1141 transitions. Word has length 16 [2024-12-02 15:23:14,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:14,465 INFO L471 AbstractCegarLoop]: Abstraction has 820 states and 1141 transitions. [2024-12-02 15:23:14,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:23:14,466 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1141 transitions. [2024-12-02 15:23:14,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-02 15:23:14,467 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:14,467 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:23:14,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 15:23:14,467 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:14,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:14,468 INFO L85 PathProgramCache]: Analyzing trace with hash -1939651144, now seen corresponding path program 1 times [2024-12-02 15:23:14,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:14,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131278410] [2024-12-02 15:23:14,468 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:14,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:14,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:15,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:15,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:15,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131278410] [2024-12-02 15:23:15,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131278410] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:15,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:15,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 15:23:15,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405554827] [2024-12-02 15:23:15,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:15,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:23:15,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:15,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:23:15,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:23:15,009 INFO L87 Difference]: Start difference. First operand 820 states and 1141 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:23:15,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:15,058 INFO L93 Difference]: Finished difference Result 1637 states and 2279 transitions. [2024-12-02 15:23:15,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:23:15,058 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-12-02 15:23:15,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:15,065 INFO L225 Difference]: With dead ends: 1637 [2024-12-02 15:23:15,065 INFO L226 Difference]: Without dead ends: 820 [2024-12-02 15:23:15,067 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 15:23:15,068 INFO L435 NwaCegarLoop]: 727 mSDtfsCounter, 718 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 718 SdHoareTripleChecker+Valid, 727 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 15:23:15,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [718 Valid, 727 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:23:15,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 820 states. [2024-12-02 15:23:15,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 820 to 820. [2024-12-02 15:23:15,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 604 states have (on average 1.349337748344371) internal successors, (815), 614 states have internal predecessors, (815), 165 states have call successors, (165), 51 states have call predecessors, (165), 50 states have return successors, (159), 159 states have call predecessors, (159), 159 states have call successors, (159) [2024-12-02 15:23:15,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1139 transitions. [2024-12-02 15:23:15,136 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1139 transitions. Word has length 19 [2024-12-02 15:23:15,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:15,136 INFO L471 AbstractCegarLoop]: Abstraction has 820 states and 1139 transitions. [2024-12-02 15:23:15,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:23:15,137 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1139 transitions. [2024-12-02 15:23:15,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-02 15:23:15,138 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:15,138 INFO L218 NwaCegarLoop]: trace histogram [1, 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 15:23:15,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 15:23:15,138 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:15,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:15,139 INFO L85 PathProgramCache]: Analyzing trace with hash 905071542, now seen corresponding path program 1 times [2024-12-02 15:23:15,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:15,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106275253] [2024-12-02 15:23:15,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:15,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:15,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:16,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:16,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:16,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106275253] [2024-12-02 15:23:16,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106275253] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:16,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:16,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:23:16,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235348137] [2024-12-02 15:23:16,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:16,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:23:16,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:16,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:23:16,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:23:16,064 INFO L87 Difference]: Start difference. First operand 820 states and 1139 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 15:23:20,117 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 15:23:20,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:20,226 INFO L93 Difference]: Finished difference Result 2049 states and 2849 transitions. [2024-12-02 15:23:20,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:23:20,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-12-02 15:23:20,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:20,234 INFO L225 Difference]: With dead ends: 2049 [2024-12-02 15:23:20,235 INFO L226 Difference]: Without dead ends: 1232 [2024-12-02 15:23:20,238 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 15:23:20,239 INFO L435 NwaCegarLoop]: 1117 mSDtfsCounter, 675 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 675 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:20,239 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [675 Valid, 1700 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 15:23:20,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2024-12-02 15:23:20,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 1228. [2024-12-02 15:23:20,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1228 states, 909 states have (on average 1.353135313531353) internal successors, (1230), 921 states have internal predecessors, (1230), 240 states have call successors, (240), 79 states have call predecessors, (240), 78 states have return successors, (234), 234 states have call predecessors, (234), 234 states have call successors, (234) [2024-12-02 15:23:20,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1228 states to 1228 states and 1704 transitions. [2024-12-02 15:23:20,310 INFO L78 Accepts]: Start accepts. Automaton has 1228 states and 1704 transitions. Word has length 25 [2024-12-02 15:23:20,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:20,310 INFO L471 AbstractCegarLoop]: Abstraction has 1228 states and 1704 transitions. [2024-12-02 15:23:20,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 15:23:20,310 INFO L276 IsEmpty]: Start isEmpty. Operand 1228 states and 1704 transitions. [2024-12-02 15:23:20,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-12-02 15:23:20,311 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:20,311 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 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 15:23:20,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 15:23:20,312 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:20,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:20,312 INFO L85 PathProgramCache]: Analyzing trace with hash 1343734521, now seen corresponding path program 1 times [2024-12-02 15:23:20,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:20,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280126007] [2024-12-02 15:23:20,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:20,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:20,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:20,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:20,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:20,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280126007] [2024-12-02 15:23:20,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280126007] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:20,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:23:20,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:23:20,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098289209] [2024-12-02 15:23:20,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:20,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:23:20,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:20,893 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:23:20,893 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:23:20,894 INFO L87 Difference]: Start difference. First operand 1228 states and 1704 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 15:23:20,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:20,964 INFO L93 Difference]: Finished difference Result 2467 states and 3427 transitions. [2024-12-02 15:23:20,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:23:20,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2024-12-02 15:23:20,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:20,970 INFO L225 Difference]: With dead ends: 2467 [2024-12-02 15:23:20,970 INFO L226 Difference]: Without dead ends: 1242 [2024-12-02 15:23:20,973 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 15:23:20,974 INFO L435 NwaCegarLoop]: 725 mSDtfsCounter, 7 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:20,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1447 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:23:20,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1242 states. [2024-12-02 15:23:21,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1242 to 1230. [2024-12-02 15:23:21,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1230 states, 911 states have (on average 1.3523600439077936) internal successors, (1232), 923 states have internal predecessors, (1232), 240 states have call successors, (240), 79 states have call predecessors, (240), 78 states have return successors, (234), 234 states have call predecessors, (234), 234 states have call successors, (234) [2024-12-02 15:23:21,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1230 states to 1230 states and 1706 transitions. [2024-12-02 15:23:21,020 INFO L78 Accepts]: Start accepts. Automaton has 1230 states and 1706 transitions. Word has length 30 [2024-12-02 15:23:21,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:21,020 INFO L471 AbstractCegarLoop]: Abstraction has 1230 states and 1706 transitions. [2024-12-02 15:23:21,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 15:23:21,020 INFO L276 IsEmpty]: Start isEmpty. Operand 1230 states and 1706 transitions. [2024-12-02 15:23:21,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-12-02 15:23:21,021 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:21,021 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:23:21,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 15:23:21,022 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:21,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:21,022 INFO L85 PathProgramCache]: Analyzing trace with hash -1913217502, now seen corresponding path program 1 times [2024-12-02 15:23:21,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:21,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157653656] [2024-12-02 15:23:21,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:21,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:21,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:21,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 15:23:21,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:21,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157653656] [2024-12-02 15:23:21,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157653656] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:23:21,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [65994066] [2024-12-02 15:23:21,670 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:21,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:23:21,670 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:23:21,672 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:23:21,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 15:23:22,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:22,673 INFO L256 TraceCheckSpWp]: Trace formula consists of 2581 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 15:23:22,679 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:23:22,697 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-02 15:23:22,697 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:23:22,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [65994066] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:22,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:23:22,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-12-02 15:23:22,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235617171] [2024-12-02 15:23:22,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:22,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:23:22,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:22,699 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:23:22,699 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:23:22,699 INFO L87 Difference]: Start difference. First operand 1230 states and 1706 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 15:23:22,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:22,776 INFO L93 Difference]: Finished difference Result 2483 states and 3451 transitions. [2024-12-02 15:23:22,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:23:22,777 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 40 [2024-12-02 15:23:22,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:22,784 INFO L225 Difference]: With dead ends: 2483 [2024-12-02 15:23:22,784 INFO L226 Difference]: Without dead ends: 1256 [2024-12-02 15:23:22,789 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:23:22,789 INFO L435 NwaCegarLoop]: 725 mSDtfsCounter, 19 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 1435 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:22,790 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 1435 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:23:22,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1256 states. [2024-12-02 15:23:22,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1256 to 1256. [2024-12-02 15:23:22,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1256 states, 931 states have (on average 1.3533834586466165) internal successors, (1260), 943 states have internal predecessors, (1260), 246 states have call successors, (246), 79 states have call predecessors, (246), 78 states have return successors, (240), 240 states have call predecessors, (240), 240 states have call successors, (240) [2024-12-02 15:23:22,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 1746 transitions. [2024-12-02 15:23:22,855 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 1746 transitions. Word has length 40 [2024-12-02 15:23:22,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:22,855 INFO L471 AbstractCegarLoop]: Abstraction has 1256 states and 1746 transitions. [2024-12-02 15:23:22,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-12-02 15:23:22,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 1746 transitions. [2024-12-02 15:23:22,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-12-02 15:23:22,856 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:22,857 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 15:23:22,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 15:23:23,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:23:23,057 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:23,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:23,058 INFO L85 PathProgramCache]: Analyzing trace with hash -2096014832, now seen corresponding path program 1 times [2024-12-02 15:23:23,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:23,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441795103] [2024-12-02 15:23:23,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:23,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:23,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:23,773 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 15:23:23,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:23,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441795103] [2024-12-02 15:23:23,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441795103] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:23:23,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017430008] [2024-12-02 15:23:23,773 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:23,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:23:23,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:23:23,775 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:23:23,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 15:23:24,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:24,694 INFO L256 TraceCheckSpWp]: Trace formula consists of 2599 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 15:23:24,697 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:23:24,708 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 15:23:24,708 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:23:24,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017430008] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:24,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:23:24,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-12-02 15:23:24,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99237486] [2024-12-02 15:23:24,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:24,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:23:24,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:24,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:23:24,710 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:23:24,710 INFO L87 Difference]: Start difference. First operand 1256 states and 1746 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 15:23:24,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:24,779 INFO L93 Difference]: Finished difference Result 1278 states and 1772 transitions. [2024-12-02 15:23:24,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:23:24,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2024-12-02 15:23:24,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:24,784 INFO L225 Difference]: With dead ends: 1278 [2024-12-02 15:23:24,784 INFO L226 Difference]: Without dead ends: 1267 [2024-12-02 15:23:24,785 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:23:24,785 INFO L435 NwaCegarLoop]: 740 mSDtfsCounter, 723 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 723 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:24,786 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [723 Valid, 753 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:23:24,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1267 states. [2024-12-02 15:23:24,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1267 to 1256. [2024-12-02 15:23:24,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1256 states, 931 states have (on average 1.351235230934479) internal successors, (1258), 943 states have internal predecessors, (1258), 246 states have call successors, (246), 79 states have call predecessors, (246), 78 states have return successors, (240), 240 states have call predecessors, (240), 240 states have call successors, (240) [2024-12-02 15:23:24,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 1744 transitions. [2024-12-02 15:23:24,826 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 1744 transitions. Word has length 45 [2024-12-02 15:23:24,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:24,826 INFO L471 AbstractCegarLoop]: Abstraction has 1256 states and 1744 transitions. [2024-12-02 15:23:24,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 15:23:24,826 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 1744 transitions. [2024-12-02 15:23:24,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-12-02 15:23:24,827 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:24,827 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 15:23:24,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 15:23:25,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:23:25,028 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:25,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:25,028 INFO L85 PathProgramCache]: Analyzing trace with hash -2038756530, now seen corresponding path program 1 times [2024-12-02 15:23:25,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:25,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867807428] [2024-12-02 15:23:25,029 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:25,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:25,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:25,710 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 15:23:25,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:25,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867807428] [2024-12-02 15:23:25,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867807428] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:23:25,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316658580] [2024-12-02 15:23:25,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:25,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:23:25,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:23:25,713 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:23:25,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 15:23:26,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:26,672 INFO L256 TraceCheckSpWp]: Trace formula consists of 2596 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 15:23:26,676 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:23:26,753 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 15:23:26,753 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:23:26,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316658580] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:26,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:23:26,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-12-02 15:23:26,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247471904] [2024-12-02 15:23:26,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:26,753 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:23:26,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:26,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:23:26,754 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:23:26,754 INFO L87 Difference]: Start difference. First operand 1256 states and 1744 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 15:23:30,784 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:23:30,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:30,827 INFO L93 Difference]: Finished difference Result 1258 states and 1745 transitions. [2024-12-02 15:23:30,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:23:30,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2024-12-02 15:23:30,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:30,832 INFO L225 Difference]: With dead ends: 1258 [2024-12-02 15:23:30,832 INFO L226 Difference]: Without dead ends: 1255 [2024-12-02 15:23:30,833 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:23:30,834 INFO L435 NwaCegarLoop]: 725 mSDtfsCounter, 686 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 686 SdHoareTripleChecker+Valid, 725 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:30,834 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [686 Valid, 725 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2024-12-02 15:23:30,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2024-12-02 15:23:30,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1255. [2024-12-02 15:23:30,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 931 states have (on average 1.3501611170784102) internal successors, (1257), 942 states have internal predecessors, (1257), 245 states have call successors, (245), 79 states have call predecessors, (245), 78 states have return successors, (240), 240 states have call predecessors, (240), 240 states have call successors, (240) [2024-12-02 15:23:30,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1742 transitions. [2024-12-02 15:23:30,877 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1742 transitions. Word has length 45 [2024-12-02 15:23:30,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:30,877 INFO L471 AbstractCegarLoop]: Abstraction has 1255 states and 1742 transitions. [2024-12-02 15:23:30,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 15:23:30,878 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1742 transitions. [2024-12-02 15:23:30,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-12-02 15:23:30,878 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:30,879 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 15:23:30,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 15:23:31,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-12-02 15:23:31,079 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:31,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:31,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1222830710, now seen corresponding path program 1 times [2024-12-02 15:23:31,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:31,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722786738] [2024-12-02 15:23:31,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:31,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:31,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:31,695 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 15:23:31,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:31,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722786738] [2024-12-02 15:23:31,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722786738] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:23:31,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113244060] [2024-12-02 15:23:31,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:31,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:23:31,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:23:31,697 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:23:31,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 15:23:32,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:32,706 INFO L256 TraceCheckSpWp]: Trace formula consists of 2598 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 15:23:32,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:23:32,828 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 15:23:32,828 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:23:32,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [113244060] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:32,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:23:32,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-12-02 15:23:32,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053656337] [2024-12-02 15:23:32,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:32,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:23:32,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:32,829 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:23:32,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:23:32,829 INFO L87 Difference]: Start difference. First operand 1255 states and 1742 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 15:23:36,872 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 15:23:36,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:36,911 INFO L93 Difference]: Finished difference Result 1257 states and 1743 transitions. [2024-12-02 15:23:36,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:23:36,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 46 [2024-12-02 15:23:36,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:36,917 INFO L225 Difference]: With dead ends: 1257 [2024-12-02 15:23:36,917 INFO L226 Difference]: Without dead ends: 1254 [2024-12-02 15:23:36,918 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:23:36,918 INFO L435 NwaCegarLoop]: 723 mSDtfsCounter, 683 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:36,918 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [683 Valid, 723 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 15:23:36,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1254 states. [2024-12-02 15:23:36,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1254 to 1254. [2024-12-02 15:23:36,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1254 states, 931 states have (on average 1.3490870032223417) internal successors, (1256), 941 states have internal predecessors, (1256), 244 states have call successors, (244), 79 states have call predecessors, (244), 78 states have return successors, (240), 240 states have call predecessors, (240), 240 states have call successors, (240) [2024-12-02 15:23:36,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 1740 transitions. [2024-12-02 15:23:36,961 INFO L78 Accepts]: Start accepts. Automaton has 1254 states and 1740 transitions. Word has length 46 [2024-12-02 15:23:36,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:36,961 INFO L471 AbstractCegarLoop]: Abstraction has 1254 states and 1740 transitions. [2024-12-02 15:23:36,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 15:23:36,961 INFO L276 IsEmpty]: Start isEmpty. Operand 1254 states and 1740 transitions. [2024-12-02 15:23:36,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-12-02 15:23:36,962 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:36,963 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 15:23:36,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 15:23:37,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-12-02 15:23:37,164 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:37,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:37,164 INFO L85 PathProgramCache]: Analyzing trace with hash -747175087, now seen corresponding path program 1 times [2024-12-02 15:23:37,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:37,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246819253] [2024-12-02 15:23:37,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:37,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:37,679 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 15:23:37,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:37,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246819253] [2024-12-02 15:23:37,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246819253] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:23:37,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847564799] [2024-12-02 15:23:37,679 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:37,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:23:37,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:23:37,681 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:23:37,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 15:23:38,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:38,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 2600 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 15:23:38,607 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:23:38,681 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 15:23:38,681 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:23:38,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847564799] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:38,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:23:38,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-12-02 15:23:38,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404043156] [2024-12-02 15:23:38,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:38,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:23:38,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:38,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:23:38,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:23:38,683 INFO L87 Difference]: Start difference. First operand 1254 states and 1740 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 15:23:42,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:23:42,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:42,770 INFO L93 Difference]: Finished difference Result 1256 states and 1741 transitions. [2024-12-02 15:23:42,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:23:42,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 47 [2024-12-02 15:23:42,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:42,777 INFO L225 Difference]: With dead ends: 1256 [2024-12-02 15:23:42,777 INFO L226 Difference]: Without dead ends: 1253 [2024-12-02 15:23:42,777 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:23:42,778 INFO L435 NwaCegarLoop]: 721 mSDtfsCounter, 680 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 680 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:42,778 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [680 Valid, 721 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2024-12-02 15:23:42,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2024-12-02 15:23:42,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 1253. [2024-12-02 15:23:42,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1253 states, 931 states have (on average 1.3480128893662728) internal successors, (1255), 940 states have internal predecessors, (1255), 243 states have call successors, (243), 79 states have call predecessors, (243), 78 states have return successors, (240), 240 states have call predecessors, (240), 240 states have call successors, (240) [2024-12-02 15:23:42,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1253 states to 1253 states and 1738 transitions. [2024-12-02 15:23:42,849 INFO L78 Accepts]: Start accepts. Automaton has 1253 states and 1738 transitions. Word has length 47 [2024-12-02 15:23:42,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:42,849 INFO L471 AbstractCegarLoop]: Abstraction has 1253 states and 1738 transitions. [2024-12-02 15:23:42,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 15:23:42,850 INFO L276 IsEmpty]: Start isEmpty. Operand 1253 states and 1738 transitions. [2024-12-02 15:23:42,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-12-02 15:23:42,850 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:42,850 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 15:23:42,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-12-02 15:23:43,051 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-12-02 15:23:43,051 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:43,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:43,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1687807783, now seen corresponding path program 1 times [2024-12-02 15:23:43,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:43,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401681934] [2024-12-02 15:23:43,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:43,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:43,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:43,632 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-02 15:23:43,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:43,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401681934] [2024-12-02 15:23:43,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401681934] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:23:43,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1552144696] [2024-12-02 15:23:43,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:43,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:23:43,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:23:43,634 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:23:43,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 15:23:44,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:44,676 INFO L256 TraceCheckSpWp]: Trace formula consists of 2602 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 15:23:44,678 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:23:44,766 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-02 15:23:44,766 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:23:44,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1552144696] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:44,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:23:44,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-12-02 15:23:44,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010975737] [2024-12-02 15:23:44,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:44,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:23:44,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:44,768 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:23:44,768 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:23:44,768 INFO L87 Difference]: Start difference. First operand 1253 states and 1738 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 15:23:48,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:23:48,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:48,888 INFO L93 Difference]: Finished difference Result 1677 states and 2306 transitions. [2024-12-02 15:23:48,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:23:48,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2024-12-02 15:23:48,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:48,896 INFO L225 Difference]: With dead ends: 1677 [2024-12-02 15:23:48,896 INFO L226 Difference]: Without dead ends: 1640 [2024-12-02 15:23:48,897 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:23:48,898 INFO L435 NwaCegarLoop]: 786 mSDtfsCounter, 635 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 635 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:48,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [635 Valid, 1126 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 15:23:48,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1640 states. [2024-12-02 15:23:48,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1640 to 1640. [2024-12-02 15:23:48,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1640 states, 1196 states have (on average 1.330267558528428) internal successors, (1591), 1207 states have internal predecessors, (1591), 334 states have call successors, (334), 110 states have call predecessors, (334), 109 states have return successors, (333), 333 states have call predecessors, (333), 333 states have call successors, (333) [2024-12-02 15:23:48,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1640 states to 1640 states and 2258 transitions. [2024-12-02 15:23:48,994 INFO L78 Accepts]: Start accepts. Automaton has 1640 states and 2258 transitions. Word has length 48 [2024-12-02 15:23:48,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:48,995 INFO L471 AbstractCegarLoop]: Abstraction has 1640 states and 2258 transitions. [2024-12-02 15:23:48,995 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-12-02 15:23:48,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1640 states and 2258 transitions. [2024-12-02 15:23:48,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-12-02 15:23:48,996 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:48,996 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:23:49,011 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 15:23:49,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:23:49,197 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:49,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:49,197 INFO L85 PathProgramCache]: Analyzing trace with hash -300997162, now seen corresponding path program 1 times [2024-12-02 15:23:49,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:49,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424879859] [2024-12-02 15:23:49,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:49,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:49,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:49,765 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 15:23:49,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:49,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424879859] [2024-12-02 15:23:49,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424879859] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:23:49,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558372670] [2024-12-02 15:23:49,765 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:49,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:23:49,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:23:49,767 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:23:49,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 15:23:50,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:50,863 INFO L256 TraceCheckSpWp]: Trace formula consists of 2818 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 15:23:50,865 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:23:50,878 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-02 15:23:50,879 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:23:50,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558372670] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:50,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:23:50,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-12-02 15:23:50,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112372580] [2024-12-02 15:23:50,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:50,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:23:50,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:50,879 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:23:50,880 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:23:50,880 INFO L87 Difference]: Start difference. First operand 1640 states and 2258 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 15:23:50,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:50,980 INFO L93 Difference]: Finished difference Result 3294 states and 4538 transitions. [2024-12-02 15:23:50,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:23:50,981 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 75 [2024-12-02 15:23:50,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:50,988 INFO L225 Difference]: With dead ends: 3294 [2024-12-02 15:23:50,988 INFO L226 Difference]: Without dead ends: 1657 [2024-12-02 15:23:50,992 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:23:50,992 INFO L435 NwaCegarLoop]: 676 mSDtfsCounter, 17 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:50,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 1343 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 15:23:50,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1657 states. [2024-12-02 15:23:51,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1657 to 1642. [2024-12-02 15:23:51,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1642 states, 1198 states have (on average 1.3297161936560935) internal successors, (1593), 1209 states have internal predecessors, (1593), 334 states have call successors, (334), 110 states have call predecessors, (334), 109 states have return successors, (333), 333 states have call predecessors, (333), 333 states have call successors, (333) [2024-12-02 15:23:51,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1642 states to 1642 states and 2260 transitions. [2024-12-02 15:23:51,048 INFO L78 Accepts]: Start accepts. Automaton has 1642 states and 2260 transitions. Word has length 75 [2024-12-02 15:23:51,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:51,048 INFO L471 AbstractCegarLoop]: Abstraction has 1642 states and 2260 transitions. [2024-12-02 15:23:51,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 15:23:51,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1642 states and 2260 transitions. [2024-12-02 15:23:51,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-12-02 15:23:51,050 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:23:51,051 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:23:51,061 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 15:23:51,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:23:51,251 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:23:51,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:23:51,252 INFO L85 PathProgramCache]: Analyzing trace with hash -559058879, now seen corresponding path program 1 times [2024-12-02 15:23:51,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:23:51,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072328845] [2024-12-02 15:23:51,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:51,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:23:51,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:51,781 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-12-02 15:23:51,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:23:51,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072328845] [2024-12-02 15:23:51,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072328845] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 15:23:51,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692096309] [2024-12-02 15:23:51,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:23:51,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:23:51,781 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 15:23:51,783 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 15:23:51,784 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 15:23:52,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:23:52,906 INFO L256 TraceCheckSpWp]: Trace formula consists of 2829 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 15:23:52,909 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 15:23:52,930 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-02 15:23:52,930 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 15:23:52,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692096309] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:23:52,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 15:23:52,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-12-02 15:23:52,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103989686] [2024-12-02 15:23:52,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:23:52,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:23:52,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:23:52,931 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:23:52,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:23:52,931 INFO L87 Difference]: Start difference. First operand 1642 states and 2260 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 15:23:56,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:23:57,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:23:57,022 INFO L93 Difference]: Finished difference Result 1642 states and 2260 transitions. [2024-12-02 15:23:57,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 15:23:57,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 79 [2024-12-02 15:23:57,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:23:57,025 INFO L225 Difference]: With dead ends: 1642 [2024-12-02 15:23:57,025 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 15:23:57,027 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:23:57,028 INFO L435 NwaCegarLoop]: 915 mSDtfsCounter, 330 mSDsluCounter, 641 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 330 SdHoareTripleChecker+Valid, 1556 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-12-02 15:23:57,028 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [330 Valid, 1556 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 1 Unknown, 0 Unchecked, 4.0s Time] [2024-12-02 15:23:57,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 15:23:57,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 15:23:57,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 15:23:57,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 15:23:57,029 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 79 [2024-12-02 15:23:57,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:23:57,029 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 15:23:57,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-12-02 15:23:57,030 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 15:23:57,030 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 15:23:57,032 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 15:23:57,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 15:23:57,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 15:23:57,235 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 15:23:57,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 15:24:09,534 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 15:24:09,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 03:24:09 BoogieIcfgContainer [2024-12-02 15:24:09,547 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 15:24:09,548 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 15:24:09,548 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 15:24:09,548 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 15:24:09,549 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 03:23:12" (3/4) ... [2024-12-02 15:24:09,551 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 15:24:09,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure copy_from_user [2024-12-02 15:24:09,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_release [2024-12-02 15:24:09,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_init [2024-12-02 15:24:09,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure write_reg [2024-12-02 15:24:09,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_sleep [2024-12-02 15:24:09,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_read_regr [2024-12-02 15:24:09,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure might_fault [2024-12-02 15:24:09,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2024-12-02 15:24:09,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_disconnect [2024-12-02 15:24:09,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_probe [2024-12-02 15:24:09,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure status_reg [2024-12-02 15:24:09,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_completion [2024-12-02 15:24:09,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_unregister_chrdev_11 [2024-12-02 15:24:09,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure DRIVE [2024-12-02 15:24:09,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure mutex_unlock [2024-12-02 15:24:09,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure copy_to_user [2024-12-02 15:24:09,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_wait [2024-12-02 15:24:09,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2024-12-02 15:24:09,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_write [2024-12-02 15:24:09,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_connect [2024-12-02 15:24:09,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_command [2024-12-02 15:24:09,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv__builtin_expect [2024-12-02 15:24:09,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure clear_bit [2024-12-02 15:24:09,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_reg [2024-12-02 15:24:09,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_reset [2024-12-02 15:24:09,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-12-02 15:24:09,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure mutex_lock [2024-12-02 15:24:09,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _copy_from_user [2024-12-02 15:24:09,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure xs [2024-12-02 15:24:09,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_identify [2024-12-02 15:24:09,557 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_write_block [2024-12-02 15:24:09,579 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 212 nodes and edges [2024-12-02 15:24:09,582 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 96 nodes and edges [2024-12-02 15:24:09,584 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2024-12-02 15:24:09,587 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-12-02 15:24:09,590 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 15:24:09,592 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-12-02 15:24:09,595 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 15:24:09,816 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 15:24:09,817 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 15:24:09,817 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 15:24:09,818 INFO L158 Benchmark]: Toolchain (without parser) took 64789.03ms. Allocated memory was 142.6MB in the beginning and 931.1MB in the end (delta: 788.5MB). Free memory was 112.5MB in the beginning and 849.2MB in the end (delta: -736.8MB). Peak memory consumption was 228.6MB. Max. memory is 16.1GB. [2024-12-02 15:24:09,818 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory was 81.5MB in the beginning and 81.5MB in the end (delta: 31.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 15:24:09,818 INFO L158 Benchmark]: CACSL2BoogieTranslator took 909.67ms. Allocated memory is still 142.6MB. Free memory was 112.5MB in the beginning and 88.3MB in the end (delta: 24.1MB). Peak memory consumption was 73.9MB. Max. memory is 16.1GB. [2024-12-02 15:24:09,818 INFO L158 Benchmark]: Boogie Procedure Inliner took 106.53ms. Allocated memory is still 142.6MB. Free memory was 88.3MB in the beginning and 74.7MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 15:24:09,818 INFO L158 Benchmark]: Boogie Preprocessor took 212.62ms. Allocated memory is still 142.6MB. Free memory was 74.7MB in the beginning and 93.5MB in the end (delta: -18.8MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. [2024-12-02 15:24:09,819 INFO L158 Benchmark]: RCFGBuilder took 6657.15ms. Allocated memory was 142.6MB in the beginning and 343.9MB in the end (delta: 201.3MB). Free memory was 93.5MB in the beginning and 245.5MB in the end (delta: -152.0MB). Peak memory consumption was 160.2MB. Max. memory is 16.1GB. [2024-12-02 15:24:09,819 INFO L158 Benchmark]: TraceAbstraction took 56628.73ms. Allocated memory was 343.9MB in the beginning and 931.1MB in the end (delta: 587.2MB). Free memory was 245.5MB in the beginning and 687.1MB in the end (delta: -441.7MB). Peak memory consumption was 524.6MB. Max. memory is 16.1GB. [2024-12-02 15:24:09,819 INFO L158 Benchmark]: Witness Printer took 269.08ms. Allocated memory is still 931.1MB. Free memory was 687.1MB in the beginning and 849.2MB in the end (delta: -162.1MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. [2024-12-02 15:24:09,820 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory was 81.5MB in the beginning and 81.5MB in the end (delta: 31.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 909.67ms. Allocated memory is still 142.6MB. Free memory was 112.5MB in the beginning and 88.3MB in the end (delta: 24.1MB). Peak memory consumption was 73.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 106.53ms. Allocated memory is still 142.6MB. Free memory was 88.3MB in the beginning and 74.7MB in the end (delta: 13.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 212.62ms. Allocated memory is still 142.6MB. Free memory was 74.7MB in the beginning and 93.5MB in the end (delta: -18.8MB). Peak memory consumption was 38.8MB. Max. memory is 16.1GB. * RCFGBuilder took 6657.15ms. Allocated memory was 142.6MB in the beginning and 343.9MB in the end (delta: 201.3MB). Free memory was 93.5MB in the beginning and 245.5MB in the end (delta: -152.0MB). Peak memory consumption was 160.2MB. Max. memory is 16.1GB. * TraceAbstraction took 56628.73ms. Allocated memory was 343.9MB in the beginning and 931.1MB in the end (delta: 587.2MB). Free memory was 245.5MB in the beginning and 687.1MB in the end (delta: -441.7MB). Peak memory consumption was 524.6MB. Max. memory is 16.1GB. * Witness Printer took 269.08ms. Allocated memory is still 931.1MB. Free memory was 687.1MB in the beginning and 849.2MB in the end (delta: -162.1MB). Peak memory consumption was 18.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 2808]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [2808] - GenericResultAtLocation [Line: 2815]: 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 %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [2815-2816] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 4044]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 32 procedures, 529 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 44.3s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 25.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 6 mSolverCounterUnknown, 5644 SdHoareTripleChecker+Valid, 24.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5635 mSDsluCounter, 13854 SdHoareTripleChecker+Invalid, 24.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4370 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 9484 mSDtfsCounter, 91 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 460 GetRequests, 432 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1642occurred in iteration=11, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 12 MinimizatonAttempts, 70 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 940 NumberOfCodeBlocks, 940 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 920 ConstructedInterpolants, 0 QuantifiedInterpolants, 1456 SizeOfPredicates, 0 NumberOfNonLiveVariables, 21223 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 20 InterpolantComputations, 12 PerfectInterpolantSequences, 84/92 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 3770]: Location Invariant Derived location invariant: (((((((ldv_state_variable_0 == 1) && (1 == ldv_mutex_mutex_of_device)) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_pg_mutex == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - InvariantResult [Line: 3092]: Location Invariant Derived location invariant: (((((((1 == ldv_mutex_mutex_of_device) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_mutex_pg_mutex == 2)) || ((((((1 == ldv_mutex_mutex_of_device) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_pg_mutex == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1))) - InvariantResult [Line: 3033]: Loop Invariant Derived loop invariant: (((((((ldv_state_variable_0 == 1) && (1 == ldv_mutex_mutex_of_device)) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_pg_mutex == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - InvariantResult [Line: 3254]: Location Invariant Derived location invariant: (((((((1 == ldv_mutex_mutex_of_device) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_mutex_pg_mutex == 2)) || ((((((1 == ldv_mutex_mutex_of_device) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_pg_mutex == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1))) - InvariantResult [Line: 3232]: Location Invariant Derived location invariant: (((((((1 == ldv_mutex_mutex_of_device) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_mutex_pg_mutex == 2)) || ((((((1 == ldv_mutex_mutex_of_device) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_pg_mutex == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1))) - InvariantResult [Line: 3201]: Location Invariant Derived location invariant: (((((((1 == ldv_mutex_mutex_of_device) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_mutex_pg_mutex == 2)) || ((((((1 == ldv_mutex_mutex_of_device) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_pg_mutex == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1))) - InvariantResult [Line: 3413]: Location Invariant Derived location invariant: (((((((ldv_state_variable_0 == 1) && (1 == ldv_mutex_mutex_of_device)) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_pg_mutex == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - InvariantResult [Line: 3254]: Location Invariant Derived location invariant: (((((((1 == ldv_mutex_mutex_of_device) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_mutex_pg_mutex == 2)) || ((((((1 == ldv_mutex_mutex_of_device) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_pg_mutex == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1))) - InvariantResult [Line: 3181]: Location Invariant Derived location invariant: (((((((1 == ldv_mutex_mutex_of_device) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) && (ldv_mutex_pg_mutex == 2)) || ((((((1 == ldv_mutex_mutex_of_device) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_pg_mutex == 1)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1))) RESULT: Ultimate proved your program to be correct! [2024-12-02 15:24:09,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d07691a-8bf6-4dd5-84f8-b93b228f0e11/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE