./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/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 a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 07:58:17,708 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 07:58:17,782 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-13 07:58:17,788 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 07:58:17,788 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 07:58:17,820 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 07:58:17,821 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 07:58:17,821 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 07:58:17,822 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 07:58:17,825 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 07:58:17,825 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 07:58:17,826 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 07:58:17,848 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 07:58:17,850 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 07:58:17,851 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 07:58:17,851 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 07:58:17,852 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 07:58:17,852 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 07:58:17,852 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 07:58:17,853 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 07:58:17,854 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 07:58:17,854 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 07:58:17,857 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 07:58:17,857 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 07:58:17,858 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 07:58:17,858 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 07:58:17,858 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 07:58:17,858 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 07:58:17,859 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 07:58:17,859 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 07:58:17,859 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 07:58:17,859 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 07:58:17,859 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 07:58:17,860 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 07:58:17,860 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 07:58:17,860 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 07:58:17,861 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 07:58:17,861 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 07:58:17,862 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 07:58:17,862 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 410663f06ff647e412b04b4e33dc5a0aa773139e9be33f59003b35b6e81927a8 [2024-10-13 07:58:18,121 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 07:58:18,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 07:58:18,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 07:58:18,153 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 07:58:18,153 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 07:58:18,154 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i [2024-10-13 07:58:19,654 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 07:58:20,059 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 07:58:20,060 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i [2024-10-13 07:58:20,101 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52e83c596/11deb9b4d71b444b9a1bf968ceb3dad5/FLAG8c55d69fc [2024-10-13 07:58:20,250 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52e83c596/11deb9b4d71b444b9a1bf968ceb3dad5 [2024-10-13 07:58:20,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 07:58:20,255 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 07:58:20,257 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 07:58:20,258 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 07:58:20,265 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 07:58:20,267 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:58:20" (1/1) ... [2024-10-13 07:58:20,270 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41a0e24e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:58:20, skipping insertion in model container [2024-10-13 07:58:20,270 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:58:20" (1/1) ... [2024-10-13 07:58:20,360 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 07:58:21,269 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i[108133,108146] [2024-10-13 07:58:21,381 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 07:58:21,420 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 07:58:21,501 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] [2024-10-13 07:58:21,503 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] [2024-10-13 07:58:21,594 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-consumption/32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i[108133,108146] [2024-10-13 07:58:21,612 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 07:58:21,710 INFO L204 MainTranslator]: Completed translation [2024-10-13 07:58:21,711 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:58:21 WrapperNode [2024-10-13 07:58:21,711 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 07:58:21,715 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 07:58:21,715 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 07:58:21,715 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 07:58:21,731 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:58:21" (1/1) ... [2024-10-13 07:58:21,819 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:58:21" (1/1) ... [2024-10-13 07:58:21,901 INFO L138 Inliner]: procedures = 131, calls = 533, calls flagged for inlining = 49, calls inlined = 41, statements flattened = 1272 [2024-10-13 07:58:21,902 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 07:58:21,902 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 07:58:21,902 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 07:58:21,902 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 07:58:21,915 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:58:21" (1/1) ... [2024-10-13 07:58:21,916 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:58:21" (1/1) ... [2024-10-13 07:58:21,940 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:58:21" (1/1) ... [2024-10-13 07:58:22,025 INFO L175 MemorySlicer]: Split 254 memory accesses to 21 slices as follows [2, 3, 3, 1, 5, 5, 3, 32, 1, 95, 27, 2, 22, 11, 1, 14, 2, 13, 1, 6, 5]. 37 percent of accesses are in the largest equivalence class. The 133 initializations are split as follows [2, 0, 3, 0, 5, 0, 0, 24, 1, 0, 27, 0, 22, 11, 0, 14, 0, 13, 0, 6, 5]. The 54 writes are split as follows [0, 2, 0, 0, 0, 5, 1, 0, 0, 42, 0, 1, 0, 0, 0, 0, 2, 0, 1, 0, 0]. [2024-10-13 07:58:22,026 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:58:21" (1/1) ... [2024-10-13 07:58:22,027 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:58:21" (1/1) ... [2024-10-13 07:58:22,087 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:58:21" (1/1) ... [2024-10-13 07:58:22,100 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:58:21" (1/1) ... [2024-10-13 07:58:22,118 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:58:21" (1/1) ... [2024-10-13 07:58:22,126 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:58:21" (1/1) ... [2024-10-13 07:58:22,141 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 07:58:22,143 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 07:58:22,143 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 07:58:22,143 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 07:58:22,144 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:58:21" (1/1) ... [2024-10-13 07:58:22,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 07:58:22,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:58:22,185 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 07:58:22,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 07:58:22,240 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2024-10-13 07:58:22,240 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2024-10-13 07:58:22,240 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2024-10-13 07:58:22,240 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2024-10-13 07:58:22,240 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2024-10-13 07:58:22,240 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2024-10-13 07:58:22,240 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2024-10-13 07:58:22,240 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2024-10-13 07:58:22,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 07:58:22,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 07:58:22,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-13 07:58:22,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-13 07:58:22,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-13 07:58:22,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-13 07:58:22,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-13 07:58:22,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-13 07:58:22,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-10-13 07:58:22,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-10-13 07:58:22,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-10-13 07:58:22,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-10-13 07:58:22,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-10-13 07:58:22,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-10-13 07:58:22,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-10-13 07:58:22,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-10-13 07:58:22,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-10-13 07:58:22,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-10-13 07:58:22,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-10-13 07:58:22,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-10-13 07:58:22,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2024-10-13 07:58:22,245 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2024-10-13 07:58:22,245 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2024-10-13 07:58:22,245 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-10-13 07:58:22,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-10-13 07:58:22,245 INFO L130 BoogieDeclarations]: Found specification of procedure pg_sleep [2024-10-13 07:58:22,245 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_sleep [2024-10-13 07:58:22,245 INFO L130 BoogieDeclarations]: Found specification of procedure pg_completion [2024-10-13 07:58:22,246 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_completion [2024-10-13 07:58:22,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 07:58:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 07:58:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-13 07:58:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-13 07:58:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-13 07:58:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-13 07:58:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-13 07:58:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-13 07:58:22,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-10-13 07:58:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-10-13 07:58:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-10-13 07:58:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-10-13 07:58:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-10-13 07:58:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-10-13 07:58:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-10-13 07:58:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-10-13 07:58:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-10-13 07:58:22,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-10-13 07:58:22,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-10-13 07:58:22,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-10-13 07:58:22,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2024-10-13 07:58:22,249 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-10-13 07:58:22,250 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-10-13 07:58:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2024-10-13 07:58:22,250 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2024-10-13 07:58:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure pg_wait [2024-10-13 07:58:22,250 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_wait [2024-10-13 07:58:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-10-13 07:58:22,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-10-13 07:58:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-10-13 07:58:22,250 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-10-13 07:58:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-10-13 07:58:22,250 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-10-13 07:58:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 07:58:22,250 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2024-10-13 07:58:22,250 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2024-10-13 07:58:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2024-10-13 07:58:22,251 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2024-10-13 07:58:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 07:58:22,251 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_11 [2024-10-13 07:58:22,251 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_11 [2024-10-13 07:58:22,252 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-13 07:58:22,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-13 07:58:22,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-13 07:58:22,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-13 07:58:22,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-13 07:58:22,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-13 07:58:22,253 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-13 07:58:22,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-10-13 07:58:22,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-10-13 07:58:22,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-10-13 07:58:22,254 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-10-13 07:58:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-10-13 07:58:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-10-13 07:58:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-10-13 07:58:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-10-13 07:58:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-10-13 07:58:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-10-13 07:58:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-10-13 07:58:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-10-13 07:58:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-10-13 07:58:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-10-13 07:58:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2024-10-13 07:58:22,255 INFO L130 BoogieDeclarations]: Found specification of procedure DRIVE [2024-10-13 07:58:22,256 INFO L138 BoogieDeclarations]: Found implementation of procedure DRIVE [2024-10-13 07:58:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure pg_write [2024-10-13 07:58:22,256 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_write [2024-10-13 07:58:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-13 07:58:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-13 07:58:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-13 07:58:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-13 07:58:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-13 07:58:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-13 07:58:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-10-13 07:58:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-10-13 07:58:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-10-13 07:58:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-10-13 07:58:22,256 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-10-13 07:58:22,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-10-13 07:58:22,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-10-13 07:58:22,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-10-13 07:58:22,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-10-13 07:58:22,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-10-13 07:58:22,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-10-13 07:58:22,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-10-13 07:58:22,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-10-13 07:58:22,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-10-13 07:58:22,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2024-10-13 07:58:22,259 INFO L130 BoogieDeclarations]: Found specification of procedure pg_reset [2024-10-13 07:58:22,259 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_reset [2024-10-13 07:58:22,259 INFO L130 BoogieDeclarations]: Found specification of procedure pg_identify [2024-10-13 07:58:22,260 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_identify [2024-10-13 07:58:22,260 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2024-10-13 07:58:22,260 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2024-10-13 07:58:22,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-13 07:58:22,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-13 07:58:22,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-13 07:58:22,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-13 07:58:22,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-13 07:58:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-13 07:58:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-13 07:58:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-10-13 07:58:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-10-13 07:58:22,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-10-13 07:58:22,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-10-13 07:58:22,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-10-13 07:58:22,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-10-13 07:58:22,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-10-13 07:58:22,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-10-13 07:58:22,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-10-13 07:58:22,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-10-13 07:58:22,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-10-13 07:58:22,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-10-13 07:58:22,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-10-13 07:58:22,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2024-10-13 07:58:22,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2024-10-13 07:58:22,264 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2024-10-13 07:58:22,264 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2024-10-13 07:58:22,264 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2024-10-13 07:58:22,264 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2024-10-13 07:58:22,264 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-10-13 07:58:22,264 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-10-13 07:58:22,266 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-10-13 07:58:22,266 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-10-13 07:58:22,266 INFO L130 BoogieDeclarations]: Found specification of procedure pg_probe [2024-10-13 07:58:22,266 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_probe [2024-10-13 07:58:22,266 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2024-10-13 07:58:22,266 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2024-10-13 07:58:22,267 INFO L130 BoogieDeclarations]: Found specification of procedure pg_command [2024-10-13 07:58:22,267 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_command [2024-10-13 07:58:22,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 07:58:22,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 07:58:22,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-13 07:58:22,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-13 07:58:22,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-13 07:58:22,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-13 07:58:22,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-13 07:58:22,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-13 07:58:22,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-10-13 07:58:22,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-10-13 07:58:22,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-10-13 07:58:22,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-10-13 07:58:22,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-10-13 07:58:22,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-10-13 07:58:22,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-10-13 07:58:22,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-10-13 07:58:22,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-10-13 07:58:22,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-10-13 07:58:22,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-10-13 07:58:22,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-10-13 07:58:22,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2024-10-13 07:58:22,269 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-10-13 07:58:22,269 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-10-13 07:58:22,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 07:58:22,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 07:58:22,269 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2024-10-13 07:58:22,269 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2024-10-13 07:58:22,672 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 07:58:22,676 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 07:58:24,721 INFO L? ?]: Removed 571 outVars from TransFormulas that were not future-live. [2024-10-13 07:58:24,721 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 07:58:24,892 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 07:58:24,895 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 07:58:24,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:58:24 BoogieIcfgContainer [2024-10-13 07:58:24,897 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 07:58:24,900 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 07:58:24,901 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 07:58:24,905 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 07:58:24,905 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:58:20" (1/3) ... [2024-10-13 07:58:24,906 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f52b6c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:58:24, skipping insertion in model container [2024-10-13 07:58:24,906 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:58:21" (2/3) ... [2024-10-13 07:58:24,907 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f52b6c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:58:24, skipping insertion in model container [2024-10-13 07:58:24,907 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:58:24" (3/3) ... [2024-10-13 07:58:24,908 INFO L112 eAbstractionObserver]: Analyzing ICFG 32_7a_cilled_linux-3.8-rc1-drivers--block--paride--pg.ko-main.cil.out.i [2024-10-13 07:58:24,929 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 07:58:24,929 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 07:58:25,031 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 07:58:25,039 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;@1a34908a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 07:58:25,041 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-13 07:58:25,049 INFO L276 IsEmpty]: Start isEmpty. Operand has 456 states, 321 states have (on average 1.4517133956386292) internal successors, (466), 331 states have internal predecessors, (466), 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) [2024-10-13 07:58:25,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-13 07:58:25,063 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:58:25,064 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:58:25,065 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:58:25,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:58:25,072 INFO L85 PathProgramCache]: Analyzing trace with hash -2118263865, now seen corresponding path program 1 times [2024-10-13 07:58:25,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:58:25,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101476021] [2024-10-13 07:58:25,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:58:25,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:58:25,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:25,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 07:58:25,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:58:25,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101476021] [2024-10-13 07:58:25,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101476021] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:58:25,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:58:25,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 07:58:25,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074220740] [2024-10-13 07:58:25,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:58:25,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 07:58:25,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:58:25,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 07:58:25,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 07:58:25,646 INFO L87 Difference]: Start difference. First operand has 456 states, 321 states have (on average 1.4517133956386292) internal successors, (466), 331 states have internal predecessors, (466), 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 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2024-10-13 07:58:26,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:58:26,156 INFO L93 Difference]: Finished difference Result 1200 states and 1786 transitions. [2024-10-13 07:58:26,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 07:58:26,160 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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 13 [2024-10-13 07:58:26,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:58:26,184 INFO L225 Difference]: With dead ends: 1200 [2024-10-13 07:58:26,185 INFO L226 Difference]: Without dead ends: 741 [2024-10-13 07:58:26,198 INFO L431 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 [2024-10-13 07:58:26,202 INFO L432 NwaCegarLoop]: 740 mSDtfsCounter, 419 mSDsluCounter, 571 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 1311 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-13 07:58:26,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 1311 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-13 07:58:26,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2024-10-13 07:58:26,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 721. [2024-10-13 07:58:26,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 505 states have (on average 1.4217821782178217) internal successors, (718), 515 states have internal predecessors, (718), 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) [2024-10-13 07:58:26,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 1042 transitions. [2024-10-13 07:58:26,337 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 1042 transitions. Word has length 13 [2024-10-13 07:58:26,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:58:26,338 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 1042 transitions. [2024-10-13 07:58:26,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2024-10-13 07:58:26,339 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 1042 transitions. [2024-10-13 07:58:26,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-13 07:58:26,340 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:58:26,340 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:58:26,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 07:58:26,341 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:58:26,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:58:26,342 INFO L85 PathProgramCache]: Analyzing trace with hash 861418929, now seen corresponding path program 1 times [2024-10-13 07:58:26,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:58:26,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097683021] [2024-10-13 07:58:26,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:58:26,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:58:26,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:26,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 07:58:26,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:58:26,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097683021] [2024-10-13 07:58:26,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097683021] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:58:26,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:58:26,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 07:58:26,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887360502] [2024-10-13 07:58:26,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:58:26,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 07:58:26,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:58:26,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 07:58:26,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 07:58:26,475 INFO L87 Difference]: Start difference. First operand 721 states and 1042 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 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) [2024-10-13 07:58:26,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:58:26,653 INFO L93 Difference]: Finished difference Result 1441 states and 2083 transitions. [2024-10-13 07:58:26,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 07:58:26,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 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 [2024-10-13 07:58:26,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:58:26,662 INFO L225 Difference]: With dead ends: 1441 [2024-10-13 07:58:26,664 INFO L226 Difference]: Without dead ends: 721 [2024-10-13 07:58:26,668 INFO L431 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 [2024-10-13 07:58:26,669 INFO L432 NwaCegarLoop]: 592 mSDtfsCounter, 650 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 07:58:26,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 592 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 07:58:26,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2024-10-13 07:58:26,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 721. [2024-10-13 07:58:26,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 721 states, 505 states have (on average 1.4178217821782177) internal successors, (716), 515 states have internal predecessors, (716), 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) [2024-10-13 07:58:26,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 721 states to 721 states and 1040 transitions. [2024-10-13 07:58:26,740 INFO L78 Accepts]: Start accepts. Automaton has 721 states and 1040 transitions. Word has length 16 [2024-10-13 07:58:26,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:58:26,741 INFO L471 AbstractCegarLoop]: Abstraction has 721 states and 1040 transitions. [2024-10-13 07:58:26,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 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) [2024-10-13 07:58:26,741 INFO L276 IsEmpty]: Start isEmpty. Operand 721 states and 1040 transitions. [2024-10-13 07:58:26,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-13 07:58:26,743 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:58:26,743 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:58:26,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-13 07:58:26,744 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:58:26,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:58:26,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1842702761, now seen corresponding path program 1 times [2024-10-13 07:58:26,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:58:26,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059658037] [2024-10-13 07:58:26,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:58:26,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:58:26,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:26,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 07:58:26,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:26,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 07:58:26,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:58:26,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059658037] [2024-10-13 07:58:26,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059658037] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:58:26,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:58:26,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 07:58:26,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930985631] [2024-10-13 07:58:26,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:58:26,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 07:58:26,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:58:26,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 07:58:26,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 07:58:26,937 INFO L87 Difference]: Start difference. First operand 721 states and 1040 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-10-13 07:58:29,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:58:29,723 INFO L93 Difference]: Finished difference Result 1804 states and 2604 transitions. [2024-10-13 07:58:29,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 07:58:29,724 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 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 17 [2024-10-13 07:58:29,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:58:29,732 INFO L225 Difference]: With dead ends: 1804 [2024-10-13 07:58:29,732 INFO L226 Difference]: Without dead ends: 1084 [2024-10-13 07:58:29,735 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-13 07:58:29,736 INFO L432 NwaCegarLoop]: 337 mSDtfsCounter, 849 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 1203 mSolverCounterSat, 230 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 1433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 230 IncrementalHoareTripleChecker+Valid, 1203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-10-13 07:58:29,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [938 Valid, 684 Invalid, 1433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [230 Valid, 1203 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-10-13 07:58:29,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1084 states. [2024-10-13 07:58:29,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1084 to 1080. [2024-10-13 07:58:29,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1080 states, 761 states have (on average 1.4218134034165573) internal successors, (1082), 773 states have internal predecessors, (1082), 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) [2024-10-13 07:58:29,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1080 states to 1080 states and 1556 transitions. [2024-10-13 07:58:29,803 INFO L78 Accepts]: Start accepts. Automaton has 1080 states and 1556 transitions. Word has length 17 [2024-10-13 07:58:29,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:58:29,803 INFO L471 AbstractCegarLoop]: Abstraction has 1080 states and 1556 transitions. [2024-10-13 07:58:29,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-10-13 07:58:29,804 INFO L276 IsEmpty]: Start isEmpty. Operand 1080 states and 1556 transitions. [2024-10-13 07:58:29,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-13 07:58:29,807 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:58:29,808 INFO L215 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] [2024-10-13 07:58:29,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-13 07:58:29,808 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:58:29,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:58:29,810 INFO L85 PathProgramCache]: Analyzing trace with hash 836547599, now seen corresponding path program 1 times [2024-10-13 07:58:29,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:58:29,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048718746] [2024-10-13 07:58:29,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:58:29,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:58:29,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:29,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 07:58:29,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:29,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 07:58:29,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:58:29,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048718746] [2024-10-13 07:58:29,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048718746] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:58:29,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 07:58:29,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 07:58:29,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873930956] [2024-10-13 07:58:29,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:58:29,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 07:58:29,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:58:29,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 07:58:29,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 07:58:29,966 INFO L87 Difference]: Start difference. First operand 1080 states and 1556 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) [2024-10-13 07:58:30,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:58:30,216 INFO L93 Difference]: Finished difference Result 2171 states and 3131 transitions. [2024-10-13 07:58:30,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 07:58:30,217 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 [2024-10-13 07:58:30,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:58:30,226 INFO L225 Difference]: With dead ends: 2171 [2024-10-13 07:58:30,227 INFO L226 Difference]: Without dead ends: 1092 [2024-10-13 07:58:30,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 07:58:30,235 INFO L432 NwaCegarLoop]: 592 mSDtfsCounter, 6 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1183 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 07:58:30,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1183 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 07:58:30,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2024-10-13 07:58:30,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 1082. [2024-10-13 07:58:30,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1082 states, 763 states have (on average 1.4207077326343382) internal successors, (1084), 775 states have internal predecessors, (1084), 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) [2024-10-13 07:58:30,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1082 states to 1082 states and 1558 transitions. [2024-10-13 07:58:30,302 INFO L78 Accepts]: Start accepts. Automaton has 1082 states and 1558 transitions. Word has length 25 [2024-10-13 07:58:30,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:58:30,303 INFO L471 AbstractCegarLoop]: Abstraction has 1082 states and 1558 transitions. [2024-10-13 07:58:30,303 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) [2024-10-13 07:58:30,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1082 states and 1558 transitions. [2024-10-13 07:58:30,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-13 07:58:30,307 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:58:30,307 INFO L215 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] [2024-10-13 07:58:30,308 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 07:58:30,308 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:58:30,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:58:30,309 INFO L85 PathProgramCache]: Analyzing trace with hash -611928827, now seen corresponding path program 1 times [2024-10-13 07:58:30,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:58:30,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40713174] [2024-10-13 07:58:30,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:58:30,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:58:30,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:30,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 07:58:30,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:30,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 07:58:30,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:30,496 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 07:58:30,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:58:30,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40713174] [2024-10-13 07:58:30,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40713174] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:58:30,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679904138] [2024-10-13 07:58:30,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:58:30,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:58:30,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:58:30,504 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:58:30,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 07:58:30,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:30,933 INFO L255 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 07:58:30,939 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:58:30,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 07:58:30,957 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:58:30,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679904138] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:58:30,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:58:30,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-10-13 07:58:30,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013011037] [2024-10-13 07:58:30,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:58:30,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 07:58:30,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:58:30,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 07:58:30,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 07:58:30,960 INFO L87 Difference]: Start difference. First operand 1082 states and 1558 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2024-10-13 07:58:31,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:58:31,234 INFO L93 Difference]: Finished difference Result 2187 states and 3155 transitions. [2024-10-13 07:58:31,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 07:58:31,235 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 33 [2024-10-13 07:58:31,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:58:31,244 INFO L225 Difference]: With dead ends: 2187 [2024-10-13 07:58:31,244 INFO L226 Difference]: Without dead ends: 1106 [2024-10-13 07:58:31,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 07:58:31,251 INFO L432 NwaCegarLoop]: 590 mSDtfsCounter, 18 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 1166 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 07:58:31,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 1166 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 07:58:31,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1106 states. [2024-10-13 07:58:31,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1106 to 1106. [2024-10-13 07:58:31,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1106 states, 781 states have (on average 1.4212548015364916) internal successors, (1110), 793 states have internal predecessors, (1110), 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) [2024-10-13 07:58:31,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1596 transitions. [2024-10-13 07:58:31,336 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1596 transitions. Word has length 33 [2024-10-13 07:58:31,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:58:31,337 INFO L471 AbstractCegarLoop]: Abstraction has 1106 states and 1596 transitions. [2024-10-13 07:58:31,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2024-10-13 07:58:31,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1596 transitions. [2024-10-13 07:58:31,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-13 07:58:31,338 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:58:31,339 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-13 07:58:31,362 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-13 07:58:31,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:58:31,540 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:58:31,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:58:31,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1983812193, now seen corresponding path program 1 times [2024-10-13 07:58:31,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:58:31,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614127812] [2024-10-13 07:58:31,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:58:31,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:58:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:31,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 07:58:31,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:31,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 07:58:31,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:31,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 07:58:31,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:31,736 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 07:58:31,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:58:31,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614127812] [2024-10-13 07:58:31,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614127812] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:58:31,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1795485802] [2024-10-13 07:58:31,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:58:31,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:58:31,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:58:31,740 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:58:31,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 07:58:32,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:32,126 INFO L255 TraceCheckSpWp]: Trace formula consists of 843 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 07:58:32,129 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:58:32,140 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-13 07:58:32,140 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:58:32,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1795485802] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:58:32,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:58:32,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-10-13 07:58:32,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083403132] [2024-10-13 07:58:32,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:58:32,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 07:58:32,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:58:32,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 07:58:32,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 07:58:32,144 INFO L87 Difference]: Start difference. First operand 1106 states and 1596 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2024-10-13 07:58:32,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:58:32,361 INFO L93 Difference]: Finished difference Result 1128 states and 1622 transitions. [2024-10-13 07:58:32,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 07:58:32,362 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 37 [2024-10-13 07:58:32,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:58:32,369 INFO L225 Difference]: With dead ends: 1128 [2024-10-13 07:58:32,369 INFO L226 Difference]: Without dead ends: 1117 [2024-10-13 07:58:32,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 07:58:32,371 INFO L432 NwaCegarLoop]: 605 mSDtfsCounter, 653 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 618 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 07:58:32,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 618 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 07:58:32,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1117 states. [2024-10-13 07:58:32,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1117 to 1106. [2024-10-13 07:58:32,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1106 states, 781 states have (on average 1.4186939820742637) internal successors, (1108), 793 states have internal predecessors, (1108), 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) [2024-10-13 07:58:32,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1594 transitions. [2024-10-13 07:58:32,427 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1594 transitions. Word has length 37 [2024-10-13 07:58:32,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:58:32,428 INFO L471 AbstractCegarLoop]: Abstraction has 1106 states and 1594 transitions. [2024-10-13 07:58:32,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2024-10-13 07:58:32,428 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1594 transitions. [2024-10-13 07:58:32,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-13 07:58:32,429 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:58:32,430 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-13 07:58:32,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-13 07:58:32,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-13 07:58:32,630 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:58:32,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:58:32,631 INFO L85 PathProgramCache]: Analyzing trace with hash 2041070495, now seen corresponding path program 1 times [2024-10-13 07:58:32,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:58:32,631 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890921022] [2024-10-13 07:58:32,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:58:32,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:58:32,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:32,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 07:58:32,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:32,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 07:58:32,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:32,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 07:58:32,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:32,812 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 07:58:32,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:58:32,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890921022] [2024-10-13 07:58:32,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890921022] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:58:32,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1453827860] [2024-10-13 07:58:32,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:58:32,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:58:32,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:58:32,816 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:58:32,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 07:58:33,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:33,210 INFO L255 TraceCheckSpWp]: Trace formula consists of 840 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 07:58:33,213 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:58:33,281 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-13 07:58:33,282 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:58:33,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1453827860] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:58:33,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:58:33,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-10-13 07:58:33,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805372596] [2024-10-13 07:58:33,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:58:33,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 07:58:33,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:58:33,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 07:58:33,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 07:58:33,284 INFO L87 Difference]: Start difference. First operand 1106 states and 1594 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 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) [2024-10-13 07:58:33,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:58:33,446 INFO L93 Difference]: Finished difference Result 1108 states and 1595 transitions. [2024-10-13 07:58:33,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 07:58:33,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 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 37 [2024-10-13 07:58:33,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:58:33,457 INFO L225 Difference]: With dead ends: 1108 [2024-10-13 07:58:33,457 INFO L226 Difference]: Without dead ends: 1105 [2024-10-13 07:58:33,459 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 07:58:33,460 INFO L432 NwaCegarLoop]: 590 mSDtfsCounter, 623 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 07:58:33,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 590 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 07:58:33,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1105 states. [2024-10-13 07:58:33,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1105 to 1105. [2024-10-13 07:58:33,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1105 states, 781 states have (on average 1.4174135723431498) internal successors, (1107), 792 states have internal predecessors, (1107), 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) [2024-10-13 07:58:33,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 1592 transitions. [2024-10-13 07:58:33,527 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 1592 transitions. Word has length 37 [2024-10-13 07:58:33,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:58:33,528 INFO L471 AbstractCegarLoop]: Abstraction has 1105 states and 1592 transitions. [2024-10-13 07:58:33,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 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) [2024-10-13 07:58:33,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 1592 transitions. [2024-10-13 07:58:33,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-13 07:58:33,529 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:58:33,529 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-13 07:58:33,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-13 07:58:33,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:58:33,731 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:58:33,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:58:33,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1151580625, now seen corresponding path program 1 times [2024-10-13 07:58:33,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:58:33,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509478749] [2024-10-13 07:58:33,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:58:33,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:58:33,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:33,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 07:58:33,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:33,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 07:58:33,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:33,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 07:58:33,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:33,987 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 07:58:33,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:58:33,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509478749] [2024-10-13 07:58:33,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509478749] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:58:33,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054532889] [2024-10-13 07:58:33,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:58:33,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:58:33,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:58:33,992 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:58:33,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 07:58:34,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:34,368 INFO L255 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 07:58:34,371 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:58:34,428 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-13 07:58:34,429 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:58:34,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054532889] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:58:34,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:58:34,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-10-13 07:58:34,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717553471] [2024-10-13 07:58:34,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:58:34,430 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 07:58:34,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:58:34,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 07:58:34,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 07:58:34,431 INFO L87 Difference]: Start difference. First operand 1105 states and 1592 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2024-10-13 07:58:34,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:58:34,597 INFO L93 Difference]: Finished difference Result 1107 states and 1593 transitions. [2024-10-13 07:58:34,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 07:58:34,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 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 38 [2024-10-13 07:58:34,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:58:34,605 INFO L225 Difference]: With dead ends: 1107 [2024-10-13 07:58:34,605 INFO L226 Difference]: Without dead ends: 1104 [2024-10-13 07:58:34,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 07:58:34,606 INFO L432 NwaCegarLoop]: 588 mSDtfsCounter, 620 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 07:58:34,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [620 Valid, 588 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 07:58:34,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1104 states. [2024-10-13 07:58:34,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1104 to 1104. [2024-10-13 07:58:34,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1104 states, 781 states have (on average 1.416133162612036) internal successors, (1106), 791 states have internal predecessors, (1106), 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) [2024-10-13 07:58:34,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1590 transitions. [2024-10-13 07:58:34,668 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1590 transitions. Word has length 38 [2024-10-13 07:58:34,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:58:34,669 INFO L471 AbstractCegarLoop]: Abstraction has 1104 states and 1590 transitions. [2024-10-13 07:58:34,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 2 states have internal predecessors, (30), 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) [2024-10-13 07:58:34,669 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1590 transitions. [2024-10-13 07:58:34,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-13 07:58:34,670 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:58:34,670 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-13 07:58:34,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-13 07:58:34,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:58:34,875 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:58:34,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:58:34,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1339512670, now seen corresponding path program 1 times [2024-10-13 07:58:34,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:58:34,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732226990] [2024-10-13 07:58:34,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:58:34,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:58:34,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:34,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 07:58:34,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:34,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 07:58:34,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:34,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 07:58:34,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:35,000 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 07:58:35,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:58:35,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732226990] [2024-10-13 07:58:35,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732226990] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:58:35,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711314888] [2024-10-13 07:58:35,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:58:35,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:58:35,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:58:35,002 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:58:35,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 07:58:35,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:35,384 INFO L255 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 07:58:35,386 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:58:35,450 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-13 07:58:35,451 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:58:35,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1711314888] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:58:35,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:58:35,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-10-13 07:58:35,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258902878] [2024-10-13 07:58:35,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:58:35,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 07:58:35,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:58:35,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 07:58:35,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 07:58:35,453 INFO L87 Difference]: Start difference. First operand 1104 states and 1590 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 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) [2024-10-13 07:58:35,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:58:35,609 INFO L93 Difference]: Finished difference Result 1106 states and 1591 transitions. [2024-10-13 07:58:35,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 07:58:35,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 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 39 [2024-10-13 07:58:35,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:58:35,617 INFO L225 Difference]: With dead ends: 1106 [2024-10-13 07:58:35,617 INFO L226 Difference]: Without dead ends: 1103 [2024-10-13 07:58:35,618 INFO L431 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 [2024-10-13 07:58:35,619 INFO L432 NwaCegarLoop]: 586 mSDtfsCounter, 617 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 07:58:35,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 586 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 07:58:35,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2024-10-13 07:58:35,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 1103. [2024-10-13 07:58:35,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1103 states, 781 states have (on average 1.4148527528809218) internal successors, (1105), 790 states have internal predecessors, (1105), 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) [2024-10-13 07:58:35,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1588 transitions. [2024-10-13 07:58:35,685 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1588 transitions. Word has length 39 [2024-10-13 07:58:35,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:58:35,685 INFO L471 AbstractCegarLoop]: Abstraction has 1103 states and 1588 transitions. [2024-10-13 07:58:35,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 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) [2024-10-13 07:58:35,686 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1588 transitions. [2024-10-13 07:58:35,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-10-13 07:58:35,686 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:58:35,686 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-13 07:58:35,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-13 07:58:35,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:58:35,891 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:58:35,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:58:35,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1424533394, now seen corresponding path program 1 times [2024-10-13 07:58:35,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:58:35,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652209144] [2024-10-13 07:58:35,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:58:35,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:58:35,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:36,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 07:58:36,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:36,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 07:58:36,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:36,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 07:58:36,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:36,034 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 07:58:36,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:58:36,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652209144] [2024-10-13 07:58:36,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652209144] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:58:36,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24568787] [2024-10-13 07:58:36,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:58:36,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:58:36,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:58:36,037 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:58:36,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-13 07:58:36,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:36,418 INFO L255 TraceCheckSpWp]: Trace formula consists of 846 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 07:58:36,420 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:58:36,493 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-13 07:58:36,493 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:58:36,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24568787] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:58:36,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:58:36,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-10-13 07:58:36,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599005120] [2024-10-13 07:58:36,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:58:36,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 07:58:36,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:58:36,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 07:58:36,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 07:58:36,496 INFO L87 Difference]: Start difference. First operand 1103 states and 1588 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 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) [2024-10-13 07:58:36,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:58:36,743 INFO L93 Difference]: Finished difference Result 1486 states and 2115 transitions. [2024-10-13 07:58:36,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 07:58:36,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 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 40 [2024-10-13 07:58:36,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:58:36,753 INFO L225 Difference]: With dead ends: 1486 [2024-10-13 07:58:36,754 INFO L226 Difference]: Without dead ends: 1459 [2024-10-13 07:58:36,755 INFO L431 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 [2024-10-13 07:58:36,756 INFO L432 NwaCegarLoop]: 673 mSDtfsCounter, 576 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 07:58:36,756 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 960 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 07:58:36,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1459 states. [2024-10-13 07:58:36,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1459 to 1459. [2024-10-13 07:58:36,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1459 states, 1015 states have (on average 1.3891625615763548) internal successors, (1410), 1026 states have internal predecessors, (1410), 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) [2024-10-13 07:58:36,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1459 states to 1459 states and 2077 transitions. [2024-10-13 07:58:36,842 INFO L78 Accepts]: Start accepts. Automaton has 1459 states and 2077 transitions. Word has length 40 [2024-10-13 07:58:36,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:58:36,843 INFO L471 AbstractCegarLoop]: Abstraction has 1459 states and 2077 transitions. [2024-10-13 07:58:36,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 2 states have internal predecessors, (32), 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) [2024-10-13 07:58:36,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1459 states and 2077 transitions. [2024-10-13 07:58:36,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-13 07:58:36,846 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:58:36,846 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-13 07:58:36,867 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-13 07:58:37,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:58:37,047 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:58:37,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:58:37,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1494794222, now seen corresponding path program 1 times [2024-10-13 07:58:37,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:58:37,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939932166] [2024-10-13 07:58:37,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:58:37,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:58:37,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:37,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 07:58:37,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:37,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 07:58:37,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:37,208 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 07:58:37,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:37,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 07:58:37,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:37,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-13 07:58:37,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:37,219 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-13 07:58:37,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:58:37,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939932166] [2024-10-13 07:58:37,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939932166] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:58:37,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [157337386] [2024-10-13 07:58:37,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:58:37,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:58:37,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:58:37,222 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:58:37,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-13 07:58:37,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:37,629 INFO L255 TraceCheckSpWp]: Trace formula consists of 934 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 07:58:37,631 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:58:37,644 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-13 07:58:37,644 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:58:37,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [157337386] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:58:37,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:58:37,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-10-13 07:58:37,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398736986] [2024-10-13 07:58:37,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:58:37,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 07:58:37,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:58:37,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 07:58:37,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 07:58:37,646 INFO L87 Difference]: Start difference. First operand 1459 states and 2077 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-10-13 07:58:37,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:58:37,908 INFO L93 Difference]: Finished difference Result 2931 states and 4175 transitions. [2024-10-13 07:58:37,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 07:58:37,909 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 60 [2024-10-13 07:58:37,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:58:37,926 INFO L225 Difference]: With dead ends: 2931 [2024-10-13 07:58:37,926 INFO L226 Difference]: Without dead ends: 1473 [2024-10-13 07:58:37,932 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 07:58:37,933 INFO L432 NwaCegarLoop]: 554 mSDtfsCounter, 14 mSDsluCounter, 549 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-13 07:58:37,933 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 1103 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-13 07:58:37,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1473 states. [2024-10-13 07:58:38,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1461. [2024-10-13 07:58:38,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 1017 states have (on average 1.3883972468043264) internal successors, (1412), 1028 states have internal predecessors, (1412), 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) [2024-10-13 07:58:38,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 2079 transitions. [2024-10-13 07:58:38,030 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 2079 transitions. Word has length 60 [2024-10-13 07:58:38,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:58:38,030 INFO L471 AbstractCegarLoop]: Abstraction has 1461 states and 2079 transitions. [2024-10-13 07:58:38,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2024-10-13 07:58:38,031 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 2079 transitions. [2024-10-13 07:58:38,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-13 07:58:38,033 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 07:58:38,033 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-13 07:58:38,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-13 07:58:38,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:58:38,238 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 07:58:38,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 07:58:38,239 INFO L85 PathProgramCache]: Analyzing trace with hash -73216149, now seen corresponding path program 1 times [2024-10-13 07:58:38,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 07:58:38,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744091111] [2024-10-13 07:58:38,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:58:38,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 07:58:38,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:38,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-13 07:58:38,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:38,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-13 07:58:38,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:38,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-13 07:58:38,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:38,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-13 07:58:38,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:38,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-13 07:58:38,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:38,411 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-13 07:58:38,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 07:58:38,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744091111] [2024-10-13 07:58:38,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744091111] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 07:58:38,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489575836] [2024-10-13 07:58:38,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 07:58:38,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 07:58:38,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 07:58:38,413 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 07:58:38,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-13 07:58:38,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 07:58:38,815 INFO L255 TraceCheckSpWp]: Trace formula consists of 945 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-13 07:58:38,818 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 07:58:38,833 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-13 07:58:38,833 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 07:58:38,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489575836] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 07:58:38,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 07:58:38,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-10-13 07:58:38,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263272547] [2024-10-13 07:58:38,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 07:58:38,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 07:58:38,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 07:58:38,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 07:58:38,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 07:58:38,835 INFO L87 Difference]: Start difference. First operand 1461 states and 2079 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-10-13 07:58:39,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 07:58:39,108 INFO L93 Difference]: Finished difference Result 1461 states and 2079 transitions. [2024-10-13 07:58:39,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 07:58:39,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 63 [2024-10-13 07:58:39,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 07:58:39,111 INFO L225 Difference]: With dead ends: 1461 [2024-10-13 07:58:39,111 INFO L226 Difference]: Without dead ends: 0 [2024-10-13 07:58:39,115 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 07:58:39,116 INFO L432 NwaCegarLoop]: 723 mSDtfsCounter, 306 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 1251 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-13 07:58:39,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 1251 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-13 07:58:39,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-13 07:58:39,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-13 07:58:39,117 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) [2024-10-13 07:58:39,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-13 07:58:39,119 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 63 [2024-10-13 07:58:39,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 07:58:39,119 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-13 07:58:39,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-10-13 07:58:39,119 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-13 07:58:39,120 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-13 07:58:39,122 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-13 07:58:39,142 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-13 07:58:39,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-13 07:58:39,326 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 07:58:39,328 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-13 07:58:48,377 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 07:58:48,402 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ldv_mutex_mutex_of_device~0 [2024-10-13 07:58:48,403 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~disable~0 [2024-10-13 07:58:48,403 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ldv_retval_1~0 [2024-10-13 07:58:48,403 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ldv_mutex_lock~0 [2024-10-13 07:58:48,403 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ldv_mutex_pg_mutex~0 [2024-10-13 07:58:48,403 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 [2024-10-13 07:58:48,490 WARN L155 FloydHoareUtils]: Requires clause for ldv_unregister_chrdev_11 contained old-variable. Original clause: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_retval_1~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_pg_mutex~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1) (= ~ldv_state_variable_1~0 |old(~ldv_state_variable_1~0)|)) Eliminated clause: (and (= 1 ~ldv_mutex_mutex_of_device~0) (= ~disable~0 0) (= ~ldv_retval_1~0 0) (= ~ldv_mutex_lock~0 1) (= ~ldv_mutex_pg_mutex~0 1) (= ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 1)) [2024-10-13 07:58:48,553 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:58:48 BoogieIcfgContainer [2024-10-13 07:58:48,553 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 07:58:48,554 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 07:58:48,554 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 07:58:48,554 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 07:58:48,555 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:58:24" (3/4) ... [2024-10-13 07:58:48,557 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 07:58:48,561 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure copy_from_user [2024-10-13 07:58:48,561 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_release [2024-10-13 07:58:48,561 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_init [2024-10-13 07:58:48,561 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure write_reg [2024-10-13 07:58:48,561 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_sleep [2024-10-13 07:58:48,561 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_read_regr [2024-10-13 07:58:48,562 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure might_fault [2024-10-13 07:58:48,562 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2024-10-13 07:58:48,562 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_disconnect [2024-10-13 07:58:48,562 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_probe [2024-10-13 07:58:48,562 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure status_reg [2024-10-13 07:58:48,562 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_completion [2024-10-13 07:58:48,562 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_unregister_chrdev_11 [2024-10-13 07:58:48,562 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure DRIVE [2024-10-13 07:58:48,562 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure mutex_unlock [2024-10-13 07:58:48,562 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure copy_to_user [2024-10-13 07:58:48,562 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_wait [2024-10-13 07:58:48,562 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2024-10-13 07:58:48,562 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_write [2024-10-13 07:58:48,562 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_connect [2024-10-13 07:58:48,563 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_command [2024-10-13 07:58:48,563 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv__builtin_expect [2024-10-13 07:58:48,563 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure clear_bit [2024-10-13 07:58:48,563 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_reg [2024-10-13 07:58:48,563 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_reset [2024-10-13 07:58:48,563 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-10-13 07:58:48,563 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure mutex_lock [2024-10-13 07:58:48,563 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _copy_from_user [2024-10-13 07:58:48,564 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure xs [2024-10-13 07:58:48,564 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_identify [2024-10-13 07:58:48,564 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_write_block [2024-10-13 07:58:48,598 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 261 nodes and edges [2024-10-13 07:58:48,601 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 116 nodes and edges [2024-10-13 07:58:48,603 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2024-10-13 07:58:48,606 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-10-13 07:58:48,608 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-13 07:58:48,610 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-13 07:58:48,613 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-13 07:58:48,647 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((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)) && (ldv_state_variable_1 == \old(ldv_state_variable_1))) [2024-10-13 07:58:48,779 WARN L140 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((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)) && (ldv_state_variable_1 == \old(ldv_state_variable_1))) [2024-10-13 07:58:48,853 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 07:58:48,854 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 07:58:48,854 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 07:58:48,855 INFO L158 Benchmark]: Toolchain (without parser) took 28599.56ms. Allocated memory was 197.1MB in the beginning and 564.1MB in the end (delta: 367.0MB). Free memory was 164.1MB in the beginning and 422.2MB in the end (delta: -258.0MB). Peak memory consumption was 108.5MB. Max. memory is 16.1GB. [2024-10-13 07:58:48,856 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 138.4MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 07:58:48,856 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1456.69ms. Allocated memory is still 197.1MB. Free memory was 163.9MB in the beginning and 150.2MB in the end (delta: 13.7MB). Peak memory consumption was 85.8MB. Max. memory is 16.1GB. [2024-10-13 07:58:48,856 INFO L158 Benchmark]: Boogie Procedure Inliner took 186.76ms. Allocated memory is still 197.1MB. Free memory was 150.2MB in the beginning and 141.5MB in the end (delta: 8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-10-13 07:58:48,857 INFO L158 Benchmark]: Boogie Preprocessor took 239.68ms. Allocated memory is still 197.1MB. Free memory was 141.5MB in the beginning and 120.9MB in the end (delta: 20.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-10-13 07:58:48,857 INFO L158 Benchmark]: RCFGBuilder took 2755.10ms. Allocated memory was 197.1MB in the beginning and 283.1MB in the end (delta: 86.0MB). Free memory was 120.9MB in the beginning and 173.0MB in the end (delta: -52.1MB). Peak memory consumption was 84.2MB. Max. memory is 16.1GB. [2024-10-13 07:58:48,858 INFO L158 Benchmark]: TraceAbstraction took 23653.66ms. Allocated memory was 283.1MB in the beginning and 564.1MB in the end (delta: 281.0MB). Free memory was 172.0MB in the beginning and 450.5MB in the end (delta: -278.5MB). Peak memory consumption was 290.9MB. Max. memory is 16.1GB. [2024-10-13 07:58:48,858 INFO L158 Benchmark]: Witness Printer took 300.31ms. Allocated memory is still 564.1MB. Free memory was 450.5MB in the beginning and 422.2MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-10-13 07:58:48,860 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 138.4MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1456.69ms. Allocated memory is still 197.1MB. Free memory was 163.9MB in the beginning and 150.2MB in the end (delta: 13.7MB). Peak memory consumption was 85.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 186.76ms. Allocated memory is still 197.1MB. Free memory was 150.2MB in the beginning and 141.5MB in the end (delta: 8.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 239.68ms. Allocated memory is still 197.1MB. Free memory was 141.5MB in the beginning and 120.9MB in the end (delta: 20.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * RCFGBuilder took 2755.10ms. Allocated memory was 197.1MB in the beginning and 283.1MB in the end (delta: 86.0MB). Free memory was 120.9MB in the beginning and 173.0MB in the end (delta: -52.1MB). Peak memory consumption was 84.2MB. Max. memory is 16.1GB. * TraceAbstraction took 23653.66ms. Allocated memory was 283.1MB in the beginning and 564.1MB in the end (delta: 281.0MB). Free memory was 172.0MB in the beginning and 450.5MB in the end (delta: -278.5MB). Peak memory consumption was 290.9MB. Max. memory is 16.1GB. * Witness Printer took 300.31ms. Allocated memory is still 564.1MB. Free memory was 450.5MB in the beginning and 422.2MB in the end (delta: 28.3MB). Peak memory consumption was 29.4MB. 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] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ldv_mutex_mutex_of_device~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~disable~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ldv_retval_1~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ldv_mutex_lock~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ldv_mutex_pg_mutex~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ldv_mutex_cred_guard_mutex_of_signal_struct~0 * 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, 456 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.3s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5449 SdHoareTripleChecker+Valid, 4.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5351 mSDsluCounter, 10632 SdHoareTripleChecker+Invalid, 3.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3462 mSDsCounter, 240 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2336 IncrementalHoareTripleChecker+Invalid, 2576 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 240 mSolverCounterUnsat, 7170 mSDtfsCounter, 2336 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 439 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1461occurred in iteration=11, InterpolantAutomatonStates: 38, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 12 MinimizatonAttempts, 57 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 765 NumberOfCodeBlocks, 765 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 745 ConstructedInterpolants, 0 QuantifiedInterpolants, 1203 SizeOfPredicates, 0 NumberOfNonLiveVariables, 6920 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 20 InterpolantComputations, 12 PerfectInterpolantSequences, 62/70 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 - 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: 4032]: Location Invariant Derived location invariant: (((((((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)) && (ldv_state_variable_1 == \old(ldv_state_variable_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: 3063]: 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: 3076]: 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: -1]: Loop Invariant Derived loop invariant: null - 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))) - ProcedureContractResult [Line: 2951]: Procedure Contract for copy_from_user Derived contract for procedure copy_from_user. Requires: ((((((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)) Ensures: ((((((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)) - ProcedureContractResult [Line: 4566]: Procedure Contract for pi_release Derived contract for procedure pi_release. Requires: ((((((((1 == ldv_mutex_mutex_of_device) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_pg_mutex == 1)) && (ldv_state_variable_1 == 0)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) || (((((((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))) Ensures: ((((((((1 == ldv_mutex_mutex_of_device) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_pg_mutex == 1)) && (ldv_state_variable_1 == 0)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) || (((((((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))) - ProcedureContractResult [Line: 4556]: Procedure Contract for pi_init Derived contract for procedure pi_init. Requires: (((((((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)) Ensures: (((((((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)) - ProcedureContractResult [Line: 3063]: Procedure Contract for write_reg Derived contract for procedure write_reg. Requires: (((((((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))) Ensures: (((((((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))) - ProcedureContractResult [Line: 3076]: Procedure Contract for pg_sleep Derived contract for procedure pg_sleep. Requires: (((((((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))) Ensures: (((((((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))) - ProcedureContractResult [Line: 4563]: Procedure Contract for pi_read_regr Derived contract for procedure pi_read_regr. Requires: (((((((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))) Ensures: (((((((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))) - ProcedureContractResult [Line: 4532]: Procedure Contract for might_fault Derived contract for procedure might_fault. Requires: ((((((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)) Ensures: ((((((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)) - ProcedureContractResult [Line: 4576]: Procedure Contract for printk Derived contract for procedure printk. Requires: (((((((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))) Ensures: (((((((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))) - ProcedureContractResult [Line: 4552]: Procedure Contract for pi_disconnect Derived contract for procedure pi_disconnect. Requires: (((((((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))) Ensures: (((((((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))) - ProcedureContractResult [Line: 3407]: Procedure Contract for pg_probe Derived contract for procedure pg_probe. Requires: (((((((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)) Ensures: (((((((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)) - ProcedureContractResult [Line: 3049]: Procedure Contract for status_reg Derived contract for procedure status_reg. Requires: (((((((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))) Ensures: (((((((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))) - ProcedureContractResult [Line: 3191]: Procedure Contract for pg_completion Derived contract for procedure pg_completion. Requires: (((((((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))) Ensures: (((((((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))) - ProcedureContractResult [Line: 4032]: Procedure Contract for ldv_unregister_chrdev_11 Derived contract for procedure ldv_unregister_chrdev_11. Requires: ((((((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)) Ensures: (((((((1 == ldv_mutex_mutex_of_device) && (disable == 0)) && (ldv_retval_1 == 0)) && (ldv_mutex_lock == 1)) && (ldv_mutex_pg_mutex == 1)) && (ldv_state_variable_1 == 0)) && (ldv_mutex_cred_guard_mutex_of_signal_struct == 1)) - ProcedureContractResult [Line: 3070]: Procedure Contract for DRIVE Derived contract for procedure DRIVE. Requires: (((((((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))) Ensures: (((((((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))) - ProcedureContractResult [Line: 4542]: Procedure Contract for mutex_unlock Derived contract for procedure mutex_unlock. Requires: ((((((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)) Ensures: ((((((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)) - ProcedureContractResult [Line: 2983]: Procedure Contract for copy_to_user Derived contract for procedure copy_to_user. Requires: ((((((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)) Ensures: ((((((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)) - ProcedureContractResult [Line: 3083]: Procedure Contract for pg_wait Derived contract for procedure pg_wait. Requires: (((((((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))) Ensures: (((((((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))) - ProcedureContractResult [Line: 4041]: Procedure Contract for ldv_error Derived contract for procedure ldv_error. Requires: 0 Ensures: 0 - ProcedureContractResult [Line: 3563]: Procedure Contract for pg_write Derived contract for procedure pg_write. Requires: ((((((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)) Ensures: ((((((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)) - ProcedureContractResult [Line: 4549]: Procedure Contract for pi_connect Derived contract for procedure pi_connect. Requires: (((((((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))) Ensures: (((((((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))) - ProcedureContractResult [Line: 3138]: Procedure Contract for pg_command Derived contract for procedure pg_command. Requires: (((((((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))) Ensures: (((((((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))) - ProcedureContractResult [Line: 4048]: Procedure Contract for ldv__builtin_expect Derived contract for procedure ldv__builtin_expect. Requires: ((((((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)) Ensures: ((((((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)) - ProcedureContractResult [Line: 2805]: Procedure Contract for clear_bit Derived contract for procedure clear_bit. Requires: (((((((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))) Ensures: (((((((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))) - ProcedureContractResult [Line: 3056]: Procedure Contract for read_reg Derived contract for procedure read_reg. Requires: (((((((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))) Ensures: (((((((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))) - ProcedureContractResult [Line: 3244]: Procedure Contract for pg_reset Derived contract for procedure pg_reset. Requires: (((((((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))) Ensures: (((((((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))) - ProcedureContractResult [Line: 2921]: Procedure Contract for ldv_malloc Derived contract for procedure ldv_malloc. Requires: (((((((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)) || (((((((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))) Ensures: (((((((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)) || (((((((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))) - ProcedureContractResult [Line: 4535]: Procedure Contract for mutex_lock Derived contract for procedure mutex_lock. Requires: ((((((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)) Ensures: ((((((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)) - ProcedureContractResult [Line: 4516]: Procedure Contract for _copy_from_user Derived contract for procedure _copy_from_user. Requires: ((((((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)) Ensures: ((((((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)) - ProcedureContractResult [Line: 3326]: Procedure Contract for xs Derived contract for procedure xs. Requires: (((((((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)) || (((((((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))) Ensures: (((((((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)) || (((((((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))) - ProcedureContractResult [Line: 3365]: Procedure Contract for pg_identify Derived contract for procedure pg_identify. Requires: (((((((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)) || (((((((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))) Ensures: (((((((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)) || (((((((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))) - ProcedureContractResult [Line: 4569]: Procedure Contract for pi_write_block Derived contract for procedure pi_write_block. Requires: (((((((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))) Ensures: (((((((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! [2024-10-13 07:58:48,892 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE